:root {
  --ink: #0c1a22;
  --ink-mid: #163041;
  --ink-lit: #1f4458;
  --paper: #f3efe6;
  --paper-edge: #e4ddd0;
  --line: #c9c0b0;
  --line-strong: #2a3f4c;
  --accent: #0f8a7a;
  --accent-lit: #14b8a4;
  --warn: #c45c26;
  --given: #132833;
  --entry: #0f6e62;
  --conflict: #b42318;
  --select: rgba(15, 138, 122, 0.18);
  --peer: rgba(15, 138, 122, 0.08);
  /* Tertiary: other cells sharing the selected digit */
  --same: rgba(212, 160, 40, 0.38);
  --same-ring: rgba(212, 160, 40, 0.7);
  --shadow: rgba(4, 12, 18, 0.45);
  --font-display: "Syne", "Avenir Next", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "Consolas", monospace;
  /* Shared play layout metrics — themes skin these, don't relocate them */
  --chrome-top-h: 56px;
  --tools-h: 72px;
  --pad-h: 56px;
  --scene-gap: 10px;
  --scene-pad-x: 10px;
  /* App shell insets (ad clearance is applied once here — not also on body) */
  --content-inset-top: 6px;
  --content-inset-x: 10px;
  --content-inset-bottom: max(12px, env(safe-area-inset-bottom, 0px));
  /* Nudge the game column independently of the backdrop card */
  --content-offset-x: 0px;
  --content-offset-y: 0px;
  /* Backdrop card insets (themes that show a card); content ignores these */
  --card-inset-top: 0px;
  --card-inset-x: 0px;
  --card-inset-bottom: 0px;
  /* Phone: fill the content column (Sudoku Ink-style). No numpad → pad-h 0. */
  --board-width-pct: 100%;
  --app-max-w: 480px;
  --board-max: 520px;
  --controls-rail-w: 0px;
  --streak-h: 28px;
  --pad-h: 0px;
  /* Width available to the square board (phone: full content width after app padding) */
  --board-width-cap: 100%;
  /* Definite lengths only — used for width and cell font calc() */
  --board-size: min(
    var(--board-width-cap),
    calc(100dvh - var(--fg-ad-h) - var(--content-inset-top) - var(--content-inset-bottom) - var(--chrome-top-h) - var(--streak-h) - var(--tools-h) - var(--pad-h) - (var(--scene-gap) * 4) - 12px),
    var(--board-max)
  );
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --fg-ad-h: 0px;
}

/* rem-design: 1rem === 1px (scales evenly with html font-size) */
html {
  font-size: 1px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  min-height: 100%;
  height: 100%;
}

body {
  /* Explicit — html is 1px; don't inherit that onto text */
  font-size: 16px;
  font-family: var(--font-display);
  color: var(--paper);
  background: var(--ink);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  overflow-x: hidden;
  overflow-y: auto;
}

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 90% 60% at 50% -10%, rgba(20, 184, 164, 0.16), transparent 55%),
    radial-gradient(ellipse 70% 50% at 100% 80%, rgba(196, 92, 38, 0.08), transparent 50%),
    linear-gradient(165deg, #102633 0%, var(--ink) 55%, #081218 100%);
}

.atmosphere::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.07;
  background-image:
    linear-gradient(rgba(243, 239, 230, 0.35) 1px, transparent 1px),
    linear-gradient(90deg, rgba(243, 239, 230, 0.35) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
}

/*
 * During play, .app owns ad clearance. body.fg-ads-reserve would double it.
 * Splash keeps body reserve so the menu clears the banner.
 */
html.is-playing body.fg-ads-reserve {
  padding-top: 0;
}

.app {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--app-max-w);
  margin: 0 auto;
  padding:
    calc(var(--fg-ad-h) + var(--content-inset-top))
    var(--content-inset-x)
    var(--content-inset-bottom);
  display: flex;
  flex-direction: column;
  min-height: 100%;
  min-height: 100dvh;
  box-sizing: border-box;
}

/*
 * Phone / narrow: rail is a transparent pass-through so .tools and .pad-wrap
 * remain flex children of .scene (same stack as before the aside wrap).
 */
.controls-rail {
  display: contents;
}

/*
 * Optional theme panel behind the game (most themes on, two off).
 * Positioned in .app's content box — ad clearance is already in .app padding.
 */
.backdrop-card {
  display: none;
  position: absolute;
  z-index: 0;
  pointer-events: none;
  top: var(--card-inset-top);
  right: var(--card-inset-x);
  bottom: var(--card-inset-bottom);
  left: var(--card-inset-x);
  border-radius: 18px 18px 0 0;
  background: rgba(200, 200, 200, 0.55);
  box-sizing: border-box;
}

/* ── Content container: game chrome + board + tools (movable via --content-offset-*) ── */
.content,
.scene-slot {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  width: 100%;
  min-width: 0;
  min-height: 0;
  transform: translate(var(--content-offset-x), var(--content-offset-y));
  box-sizing: border-box;
}

.scene {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: var(--scene-gap);
  width: 100%;
  min-width: 0;
  flex: 1 1 auto;
}

.chrome-band {
  position: relative;
  flex: 0 0 var(--chrome-top-h);
  height: var(--chrome-top-h);
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
}

.chrome-nav {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  height: 100%;
  box-sizing: border-box;
  pointer-events: none;
}

.chrome-nav > * {
  pointer-events: auto;
  flex: 0 0 auto;
}

.chrome-top {
  flex: 0 0 var(--chrome-top-h);
  height: var(--chrome-top-h);
  display: grid;
  /*
   * Level | timer | Best  (back/pause live in .chrome-nav)
   */
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  justify-content: center;
  column-gap: 6px;
  width: 100%;
  min-width: 0;
  text-align: center;
  position: relative;
  z-index: 1;
}

.chrome-top > * {
  min-width: 0;
}

.chrome-top .stat {
  padding: 4px 8px;
  border-radius: 8px;
  background: rgba(8, 18, 24, 0.4);
  justify-self: center;
  width: max-content;
  max-width: 100%;
}

.chrome-score {
  display: flex;
  align-items: center;
  justify-content: center;
  justify-self: center;
  text-align: center;
}

.chrome-score-value {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(24px, 7vw, 36px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: #e8fff9;
  white-space: nowrap;
}

.chrome-nav .back-btn {
  width: 44px;
}

.chrome-nav .chrome-icon-btn {
  width: 44px;
}

.chrome-btn {
  appearance: none;
  border: none;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  min-width: 0;
  padding: 4px;
  border-radius: 8px;
  transition: background 0.15s ease, opacity 0.15s ease;
}

.chrome-btn:hover,
.chrome-btn:focus-visible {
  outline: none;
  background: rgba(255, 255, 255, 0.08);
}

.chrome-icon-btn {
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  border-radius: 10px;
}

.chrome-btn-icon {
  font-size: 18px;
  line-height: 1;
}

.chrome-btn-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.7;
}

.back-btn {
  align-items: flex-start;
  padding-left: 2px;
}

.back {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(243, 239, 230, 0.65);
  text-decoration: none;
  margin-bottom: 4px;
  transition: color 0.15s ease;
}

.back:hover,
.back:focus-visible {
  color: var(--accent-lit);
  outline: none;
}

.field {
  display: grid;
  gap: 4px;
  min-width: 0;
  flex: 1 1 0;
}

.field-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(243, 239, 230, 0.5);
}

.field-select,
.btn {
  appearance: none;
  border: 1px solid rgba(243, 239, 230, 0.18);
  background: rgba(8, 18, 24, 0.72);
  color: var(--paper);
  border-radius: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  padding: 10px 12px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.15s ease;
}

.field-select {
  width: 100%;
  background-image: linear-gradient(45deg, transparent 50%, rgba(243, 239, 230, 0.7) 50%),
    linear-gradient(135deg, rgba(243, 239, 230, 0.7) 50%, transparent 50%);
  background-position: calc(100% - 16px) 55%, calc(100% - 11px) 55%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 28px;
}

/* Custom select menu (keeps native <select> for logic) */
.menu {
  position: relative;
  width: 100%;
  min-width: 0;
}

.menu-native {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
  pointer-events: none !important;
}

.menu-trigger {
  appearance: none;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  border: 1px solid rgba(243, 239, 230, 0.18);
  background: rgba(8, 18, 24, 0.78);
  color: var(--paper);
  border-radius: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  padding: 10px 12px;
  cursor: pointer;
  text-align: left;
  transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.menu-trigger-label {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.menu-chevron {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  opacity: 0.75;
  transition: transform 0.15s ease;
}

.menu.is-open .menu-chevron {
  transform: rotate(225deg) translateY(-1px);
}

.menu-trigger:hover {
  border-color: rgba(20, 184, 164, 0.55);
}

.menu-trigger:focus-visible {
  outline: 2px solid var(--accent-lit);
  outline-offset: 2px;
}

.menu-list {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% + 6px);
  z-index: 10080;
  list-style: none;
  margin: 0;
  padding: 6px;
  border-radius: 12px;
  border: 1px solid rgba(243, 239, 230, 0.16);
  background: rgba(10, 22, 28, 0.96);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(10px);
  display: none;
  max-height: min(240px, 50vh);
  overflow: auto;
}

.menu.is-open .menu-list,
.menu-list.is-open {
  display: grid;
  gap: 2px;
}

.menu-option {
  appearance: none;
  width: 100%;
  border: none;
  background: transparent;
  color: var(--paper);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  text-align: left;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease;
}

.menu-option:hover,
.menu-option:focus-visible {
  background: rgba(20, 184, 164, 0.18);
  color: #e9fff9;
  outline: none;
}

.menu-option.is-selected {
  background: rgba(15, 138, 122, 0.28);
  color: #d7fff8;
}

.btn:hover,
.field-select:hover {
  border-color: rgba(20, 184, 164, 0.55);
}

.btn:active {
  transform: translateY(1px);
}

.btn:focus-visible,
.field-select:focus-visible {
  outline: 2px solid var(--accent-lit);
  outline-offset: 2px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #0b6e62);
  border-color: transparent;
  color: #f7fffd;
  width: 100%;
  margin-top: 8px;
}

.btn-tool {
  flex: 1 1 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-size: 12px;
  padding: 8px 6px;
  min-width: 0;
  position: relative;
}

.btn-tool[aria-pressed="true"] {
  background: rgba(15, 138, 122, 0.28);
  border-color: var(--accent-lit);
  color: #d7fff8;
}

.btn-tool:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.tool-icon {
  font-size: 20px;
  line-height: 1;
  font-weight: 700;
}

.tool-icon-hint {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid currentColor;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
}

.tool-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.85;
}

.tool-badge {
  position: absolute;
  top: 4px;
  right: 6px;
  z-index: 1;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
  font-weight: 700;
  opacity: 0.9;
  pointer-events: none;
}

.tool-badge.is-count,
.tool-badge-count {
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  letter-spacing: 0;
  top: 2px;
  right: 2px;
}

.tool-badge[hidden] {
  display: none !important;
}

.stat {
  display: grid;
  gap: 2px;
  justify-items: center;
  min-width: 0;
  text-align: center;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(243, 239, 230, 0.45);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: clamp(11px, 2.9vw, 13px);
  font-weight: 600;
  color: #e8fff9;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.chrome-top #mistakes.stat-value,
.chrome-top #timer.stat-value {
  font-size: clamp(14px, 3.8vw, 18px);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.chrome-top .chrome-stat-time {
  min-width: 5.5em;
}

/* Board block: does not grow — width/aspect set size, tools follow below */
.stage {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: center;
  flex: 0 0 auto;
  width: 100%;
}

.stage-frame {
  display: flex;
  justify-content: center;
  width: 100%;
}

.board-slot {
  position: relative;
  display: flex;
  justify-content: center;
  width: min(var(--board-width-pct), var(--board-size));
  aspect-ratio: 1;
  flex: 0 0 auto;
  overflow: visible;
}

/* Glass / Zen wells enable these; single-layer blur lives there */
.board-frost {
  display: none;
}

.board {
  --n: 9;
  --br: 3;
  --bc: 3;
  width: 100%;
  height: 100%;
  aspect-ratio: 1;
  display: grid;
  grid-template-columns: repeat(var(--n), 1fr);
  grid-template-rows: repeat(var(--n), 1fr);
  background: var(--paper);
  color: var(--given);
  border: 3px solid var(--line-strong);
  border-radius: 6px;
  box-shadow:
    0 18px 40px var(--shadow),
    inset 0 0 0 1px rgba(255, 255, 255, 0.35);
  overflow: hidden;
  user-select: none;
}

.cell {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(11px, calc(var(--board-size) / var(--n) * 0.48), 36px);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  transition: background 0.12s ease;
}

.cell:nth-child(var(--n)n) {
  border-right: none;
}

.cell.box-r {
  border-right: 2px solid var(--line-strong);
}

.cell.box-b {
  border-bottom: 2px solid var(--line-strong);
}

.cell.given {
  color: var(--given);
}

.cell.entry {
  color: var(--entry);
}

.cell.selected {
  background: var(--select);
  box-shadow: inset 0 0 0 2px rgba(15, 138, 122, 0.55);
}

.cell.peer {
  background: var(--peer);
}

/* Same digit as selection — tertiary highlight (wins over peer) */
.cell.same,
.cell.peer.same {
  background: var(--same);
  box-shadow: inset 0 0 0 2px var(--same-ring);
}

.cell.conflict .glyph,
.cell.conflict .notes {
  color: var(--conflict);
}

.cell.hint-flash {
  animation: hint-pulse 0.7s var(--ease);
}

/* Completed row/col/box — ripple outward from the finishing digit */
.cell.unit-pulse {
  z-index: 2;
  animation: unit-cell-pulse 0.62s var(--ease) both;
  animation-delay: var(--pulse-delay, 0ms);
}

.cell.unit-pulse .glyph {
  display: inline-block;
  animation: unit-glyph-pulse 0.62s var(--ease) both;
  animation-delay: var(--pulse-delay, 0ms);
}

.glyph {
  line-height: 1;
}

/* Floating score pops above the board */
.score-float {
  position: absolute;
  z-index: 20;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  pointer-events: none;
  font-family: var(--font-mono);
  font-weight: 700;
  line-height: 1.05;
  white-space: nowrap;
  transform: translate(-50%, -50%);
  animation: score-float-rise 1.7s ease-out forwards;
  text-shadow: 0 1px 2px rgba(4, 12, 18, 0.35);
}

.score-float-amt {
  font-size: clamp(13px, calc(var(--board-size) * 0.055), 22px);
}

.score-float-combo {
  font-size: clamp(9px, calc(var(--board-size) * 0.032), 13px);
  letter-spacing: 0.04em;
  opacity: 0.9;
}

.score-float.is-pos {
  color: var(--accent-lit);
}

.score-float.is-neg {
  color: var(--conflict);
}

.score-float.is-combo {
  color: #d4a028;
}

.chrome-score-value.score-bump {
  animation: score-chrome-bump 0.35s var(--ease);
}

.notes {
  position: absolute;
  inset: 2px;
  display: grid;
  grid-template-columns: repeat(var(--note-cols, 3), 1fr);
  grid-template-rows: repeat(var(--note-rows, 3), 1fr);
  font-size: clamp(6px, calc(var(--board-size) / var(--n) * 0.22), 11px);
  font-weight: 500;
  color: #6b7280;
  pointer-events: none;
}

.notes span {
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
}

.notes span.on {
  opacity: 1;
  color: #4b5563;
}

.tools {
  flex: 0 0 var(--tools-h);
  height: var(--tools-h);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  align-items: stretch;
  width: 100%;
}

.pad-wrap {
  flex: 0 0 auto;
  min-height: var(--pad-h);
  display: grid;
  width: 100%;
}

.numpad {
  display: grid;
  grid-template-columns: repeat(9, minmax(0, 1fr));
  gap: 6px;
  width: 100%;
}

.num-btn {
  appearance: none;
  border: 1px solid rgba(243, 239, 230, 0.16);
  background: rgba(8, 18, 24, 0.78);
  color: var(--paper);
  border-radius: 8px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(14px, 4.2vw, 18px);
  aspect-ratio: 1;
  min-height: 0;
  width: 100%;
  cursor: pointer;
  transition: transform 0.12s ease, background 0.12s ease, border-color 0.12s ease;
}

.num-btn:hover {
  border-color: rgba(20, 184, 164, 0.55);
  background: rgba(15, 138, 122, 0.2);
}

.num-btn:active {
  transform: scale(0.96);
}

.num-btn:focus-visible {
  outline: 2px solid var(--accent-lit);
  outline-offset: 2px;
}

.num-btn.exhausted {
  opacity: 0.35;
}

.help,
.foot {
  text-align: center;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(243, 239, 230, 0.42);
}

.foot {
  margin-top: auto;
  padding-top: 8px;
}

/* Pause/settings stays above the board so live theme/size changes stay visible */
html.is-pause-open,
html.is-pause-open body {
  overflow: hidden;
  overscroll-behavior: none;
}

#pauseOverlay.overlay {
  z-index: 10060;
  align-items: flex-start;
  justify-content: center;
  padding-top: calc(var(--fg-ad-h) + 56px);
  padding-bottom: max(20px, env(safe-area-inset-bottom, 0px));
  background: rgba(6, 12, 16, 0.28);
  backdrop-filter: blur(1.5px);
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  touch-action: pan-y;
}

#pauseOverlay.overlay .overlay-card {
  flex: 0 0 auto;
  margin-bottom: 8px;
}

.settings-card {
  width: min(380px, 100%);
  text-align: left;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

.pause-card > p {
  margin-bottom: 0;
}

.pause-meta {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  margin: 14px 0 0;
}

.pause-meta .stat {
  padding: 8px 10px;
  border-radius: 8px;
  background: rgba(8, 18, 24, 0.35);
  border: 1px solid rgba(243, 239, 230, 0.1);
  justify-items: center;
  text-align: center;
}

.pause-meta .stat-value {
  font-size: 15px;
}

html[data-theme="ember"] .pause-meta .stat {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 200, 140, 0.22);
}

html[data-theme="ember"] .pause-meta .stat-label {
  color: rgba(232, 232, 240, 0.88);
}

html[data-theme="ember"] .pause-meta .stat-value {
  color: #f4f4f8;
}

html[data-theme="atlas"] .pause-meta .stat {
  background: rgba(42, 93, 103, 0.08);
  border-color: rgba(42, 93, 103, 0.2);
}

html[data-theme="atlas"] .pause-meta .stat-label {
  color: var(--atlas-teal);
}

html[data-theme="atlas"] .pause-meta .stat-value {
  color: var(--atlas-ink);
}

.settings-fields {
  display: grid;
  gap: 12px;
  margin: 16px 0 18px;
}

.settings-actions {
  display: grid;
  gap: 8px;
}

.settings-actions .btn-primary {
  margin-top: 0;
}

.overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(6, 12, 16, 0.72);
  backdrop-filter: blur(4px);
}

.overlay.hidden {
  display: none;
}

.overlay-card {
  width: min(360px, 100%);
  background: linear-gradient(160deg, #163041, #0c1a22);
  border: 1px solid rgba(20, 184, 164, 0.35);
  border-radius: 14px;
  padding: 28px 24px;
  text-align: center;
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.45);
  animation: card-pop 0.35s var(--ease);
}

.overlay-card h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 8px;
  color: #e9fff9;
}

.overlay-card p {
  color: rgba(243, 239, 230, 0.72);
  font-size: 15px;
  line-height: 1.4;
}

.spinner {
  width: 36px;
  height: 36px;
  margin: 18px auto 0;
  border-radius: 50%;
  border: 3px solid rgba(243, 239, 230, 0.15);
  border-top-color: var(--accent-lit);
  animation: spin 0.7s linear infinite;
}

@keyframes brand-in {
  from { opacity: 0; transform: translateY(8px) scale(0.98); filter: blur(2px); }
  to { opacity: 1; transform: none; filter: none; }
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

@keyframes board-rise {
  from { opacity: 0; transform: translateY(16px) scale(0.97); }
  to { opacity: 1; transform: none; }
}

@keyframes card-pop {
  from { opacity: 0; transform: translateY(12px) scale(0.96); }
  to { opacity: 1; transform: none; }
}

@keyframes hint-pulse {
  0%, 100% { background: transparent; }
  40% { background: rgba(20, 184, 164, 0.35); }
}

@keyframes unit-cell-pulse {
  0% { background-color: transparent; box-shadow: none; }
  28% {
    background-color: rgba(20, 184, 164, 0.4);
    box-shadow: inset 0 0 0 2px rgba(20, 184, 164, 0.55);
  }
  100% { background-color: transparent; box-shadow: none; }
}

@keyframes unit-glyph-pulse {
  0% { transform: scale(1); }
  28% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

/* Dragons win: scale the piece only — no cell color flash */
@keyframes dragons-piece-win-scale {
  0% { transform: scale(1); }
  40% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

@keyframes score-float-rise {
  0% {
    opacity: 0;
    transform: translate(-50%, 0);
  }
  8% {
    opacity: 1;
    transform: translate(-50%, -20%);
  }
  40% {
    opacity: 1;
    transform: translate(-50%, -340%);
  }
  68% {
    opacity: 1;
    transform: translate(-50%, -340%);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -340%);
  }
}

@keyframes score-chrome-bump {
  0% { transform: scale(1); }
  40% { transform: scale(1.12); }
  100% { transform: scale(1); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .score-float,
  .cell.unit-pulse,
  .cell.unit-pulse .glyph,
  .dragons-cell.unit-pulse .glyph-crown,
  .dragons-cell.place-ripple,
  .chrome-score-value.score-bump {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* ═══════════════════════════════════════════
   Ink board surfaces (data-ink-grid / ink-grid--*)
   paper = default · night · blueprint · graphite
   ═══════════════════════════════════════════ */

/* Kill frost plate except on Night glass (prevents white wash + invisible glyphs) */
html[data-theme="ink"] .board::before {
  content: none;
}

html[data-theme="ink"].ink-grid--paper .board,
html[data-theme="ink"][data-ink-grid="paper"] .board {
  position: relative;
  background-color: var(--paper);
  background-image: none;
  border: 3px solid var(--line-strong);
  border-radius: 6px;
  color: var(--given);
  gap: 0;
  padding: 0;
  overflow: hidden;
  box-shadow:
    0 18px 40px var(--shadow),
    inset 0 0 0 1px rgba(255, 255, 255, 0.35);
}

html[data-theme="ink"].ink-grid--paper .cell,
html[data-theme="ink"][data-ink-grid="paper"] .cell {
  background: transparent;
  color: var(--given);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

html[data-theme="ink"].ink-grid--paper .cell.given,
html[data-theme="ink"][data-ink-grid="paper"] .cell.given {
  color: var(--given);
}

html[data-theme="ink"].ink-grid--paper .cell.entry,
html[data-theme="ink"][data-ink-grid="paper"] .cell.entry {
  color: var(--entry);
}

html[data-theme="ink"].ink-grid--paper .cell.selected,
html[data-theme="ink"][data-ink-grid="paper"] .cell.selected {
  background: var(--select);
  box-shadow: inset 0 0 0 2px rgba(15, 138, 122, 0.55);
}

/* Same digit: selected-style frame, orange */
html[data-theme="ink"].ink-grid--paper .cell.same,
html[data-theme="ink"].ink-grid--paper .cell.peer.same,
html[data-theme="ink"][data-ink-grid="paper"] .cell.same,
html[data-theme="ink"][data-ink-grid="paper"] .cell.peer.same {
  background: rgba(196, 92, 38, 0.16);
  box-shadow: inset 0 0 0 2px rgba(232, 140, 60, 0.75);
}

html[data-theme="ink"].ink-grid--night {
  --ink-glass: calc(0.12 + var(--slab-cream-opacity, 0.55) * 0.28);
  --ink-pane-blur: calc(10px + var(--slab-cream-opacity, 0.55) * 16px);
}

html[data-theme="ink"].ink-grid--night .board,
html[data-theme="ink"][data-ink-grid="night"] .board {
  position: relative;
  background-color: transparent;
  background-image: none;
  border: 1px solid rgba(20, 184, 164, 0.28);
  border-radius: 14px;
  box-shadow:
    0 18px 40px rgba(4, 12, 18, 0.55),
    inset 0 0 0 1px rgba(255, 255, 255, 0.06);
  gap: 2px;
  padding: 3px;
  overflow: visible;
  color: #e8fff9;
}

html[data-theme="ink"].ink-grid--night .board::before,
html[data-theme="ink"][data-ink-grid="night"] .board::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: inherit;
  pointer-events: none;
  background: rgba(8, 18, 24, 0.2);
  backdrop-filter: blur(var(--ink-pane-blur)) saturate(1.15);
  -webkit-backdrop-filter: blur(var(--ink-pane-blur)) saturate(1.15);
}

html[data-theme="ink"].ink-grid--night .cell,
html[data-theme="ink"][data-ink-grid="night"] .cell {
  z-index: 1;
  border-radius: 10%;
  border-right: none;
  border-bottom: none;
  background:
    radial-gradient(ellipse 100% 70% at 50% 20%, rgba(255, 255, 255, 0.1), transparent 50%),
    rgba(10, 24, 32, var(--ink-glass));
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  color: #e8fff9;
  box-shadow:
    inset 0 3px 8px rgba(0, 0, 0, 0.45),
    inset 0 -1px 0 rgba(255, 255, 255, 0.1),
    inset 0 0 0 1px rgba(20, 184, 164, 0.12);
}

html[data-theme="ink"].ink-grid--night .cell.box-r,
html[data-theme="ink"][data-ink-grid="night"] .cell.box-r {
  border-right: none;
  box-shadow:
    inset 0 3px 8px rgba(0, 0, 0, 0.45),
    inset 0 -1px 0 rgba(255, 255, 255, 0.1),
    inset 0 0 0 1px rgba(20, 184, 164, 0.12),
    2px 0 0 rgba(20, 184, 164, 0.35);
}

html[data-theme="ink"].ink-grid--night .cell.box-b,
html[data-theme="ink"][data-ink-grid="night"] .cell.box-b {
  border-bottom: none;
  box-shadow:
    inset 0 3px 8px rgba(0, 0, 0, 0.45),
    inset 0 -1px 0 rgba(255, 255, 255, 0.1),
    inset 0 0 0 1px rgba(20, 184, 164, 0.12),
    0 2px 0 rgba(20, 184, 164, 0.35);
}

html[data-theme="ink"].ink-grid--night .cell.box-r.box-b,
html[data-theme="ink"][data-ink-grid="night"] .cell.box-r.box-b {
  box-shadow:
    inset 0 3px 8px rgba(0, 0, 0, 0.45),
    inset 0 -1px 0 rgba(255, 255, 255, 0.1),
    inset 0 0 0 1px rgba(20, 184, 164, 0.12),
    2px 0 0 rgba(20, 184, 164, 0.35),
    0 2px 0 rgba(20, 184, 164, 0.35);
}

html[data-theme="ink"].ink-grid--night .cell.given,
html[data-theme="ink"].ink-grid--night .cell.given .glyph,
html[data-theme="ink"][data-ink-grid="night"] .cell.given,
html[data-theme="ink"][data-ink-grid="night"] .cell.given .glyph {
  color: #f3efe6;
}

html[data-theme="ink"].ink-grid--night .cell.entry,
html[data-theme="ink"].ink-grid--night .cell.entry .glyph,
html[data-theme="ink"][data-ink-grid="night"] .cell.entry,
html[data-theme="ink"][data-ink-grid="night"] .cell.entry .glyph {
  color: #5eead4;
}

html[data-theme="ink"].ink-grid--night .cell.selected,
html[data-theme="ink"][data-ink-grid="night"] .cell.selected {
  background: rgba(20, 184, 164, 0.28);
  box-shadow: inset 0 0 0 2px rgba(94, 234, 212, 0.7);
}

html[data-theme="ink"].ink-grid--night .cell.peer,
html[data-theme="ink"][data-ink-grid="night"] .cell.peer {
  background: rgba(20, 184, 164, 0.12);
}

html[data-theme="ink"].ink-grid--night .cell.same,
html[data-theme="ink"].ink-grid--night .cell.peer.same,
html[data-theme="ink"][data-ink-grid="night"] .cell.same,
html[data-theme="ink"][data-ink-grid="night"] .cell.peer.same {
  background: rgba(196, 92, 38, 0.22);
  box-shadow: inset 0 0 0 2px rgba(232, 140, 60, 0.75);
}

html[data-theme="ink"].ink-grid--night .notes,
html[data-theme="ink"][data-ink-grid="night"] .notes {
  color: rgba(200, 220, 220, 0.35);
}

html[data-theme="ink"].ink-grid--night .notes span.on,
html[data-theme="ink"][data-ink-grid="night"] .notes span.on {
  color: rgba(200, 245, 235, 0.9);
}

/* Blueprint — drafting table */
html[data-theme="ink"].ink-grid--blueprint .board,
html[data-theme="ink"][data-ink-grid="blueprint"] .board {
  position: relative;
  background-color: #0f2a3d;
  background-image: linear-gradient(180deg, #163a52 0%, #0f2a3d 55%, #0c2232 100%);
  border: 2px solid rgba(94, 234, 212, 0.45);
  border-radius: 4px;
  box-shadow:
    0 18px 40px rgba(4, 12, 18, 0.55),
    inset 0 0 0 1px rgba(94, 234, 212, 0.12),
    inset 0 0 40px rgba(8, 40, 56, 0.5);
  color: #d7fff8;
  gap: 0;
  padding: 0;
  overflow: hidden;
}

html[data-theme="ink"].ink-grid--blueprint .cell,
html[data-theme="ink"][data-ink-grid="blueprint"] .cell {
  background: transparent;
  border-right: 1px solid rgba(94, 234, 212, 0.18);
  border-bottom: 1px solid rgba(94, 234, 212, 0.18);
  border-radius: 0;
  font-weight: 600;
  color: #d7fff8;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

html[data-theme="ink"].ink-grid--blueprint .cell.box-r,
html[data-theme="ink"][data-ink-grid="blueprint"] .cell.box-r {
  border-right: 2px solid rgba(94, 234, 212, 0.55);
}

html[data-theme="ink"].ink-grid--blueprint .cell.box-b,
html[data-theme="ink"][data-ink-grid="blueprint"] .cell.box-b {
  border-bottom: 2px solid rgba(94, 234, 212, 0.55);
}

html[data-theme="ink"].ink-grid--blueprint .cell.given,
html[data-theme="ink"].ink-grid--blueprint .cell.given .glyph,
html[data-theme="ink"][data-ink-grid="blueprint"] .cell.given,
html[data-theme="ink"][data-ink-grid="blueprint"] .cell.given .glyph {
  color: #f3efe6;
}

html[data-theme="ink"].ink-grid--blueprint .cell.entry,
html[data-theme="ink"].ink-grid--blueprint .cell.entry .glyph,
html[data-theme="ink"][data-ink-grid="blueprint"] .cell.entry,
html[data-theme="ink"][data-ink-grid="blueprint"] .cell.entry .glyph {
  color: #5eead4;
}

html[data-theme="ink"].ink-grid--blueprint .cell.selected,
html[data-theme="ink"][data-ink-grid="blueprint"] .cell.selected {
  background: rgba(94, 234, 212, 0.16);
  box-shadow: inset 0 0 0 2px rgba(94, 234, 212, 0.65);
}

html[data-theme="ink"].ink-grid--blueprint .cell.peer,
html[data-theme="ink"][data-ink-grid="blueprint"] .cell.peer {
  background: rgba(94, 234, 212, 0.07);
}

html[data-theme="ink"].ink-grid--blueprint .cell.same,
html[data-theme="ink"].ink-grid--blueprint .cell.peer.same,
html[data-theme="ink"][data-ink-grid="blueprint"] .cell.same,
html[data-theme="ink"][data-ink-grid="blueprint"] .cell.peer.same {
  background: rgba(196, 92, 38, 0.2);
  box-shadow: inset 0 0 0 2px rgba(232, 140, 60, 0.75);
}

html[data-theme="ink"].ink-grid--blueprint .notes,
html[data-theme="ink"][data-ink-grid="blueprint"] .notes {
  color: rgba(120, 180, 180, 0.45);
}

html[data-theme="ink"].ink-grid--blueprint .notes span.on,
html[data-theme="ink"][data-ink-grid="blueprint"] .notes span.on {
  color: rgba(180, 240, 230, 0.85);
}

/* Graphite — dark soft slate */
html[data-theme="ink"].ink-grid--graphite .board,
html[data-theme="ink"][data-ink-grid="graphite"] .board {
  position: relative;
  background-color: #1a2228;
  background-image:
    radial-gradient(ellipse 80% 60% at 30% 20%, rgba(255, 255, 255, 0.04), transparent 50%),
    linear-gradient(160deg, #2a3238 0%, #1a2228 50%, #141a1e 100%);
  border: 2px solid #3a454c;
  border-radius: 10px;
  box-shadow:
    0 18px 40px rgba(0, 0, 0, 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
  color: #e8ecef;
  gap: 0;
  padding: 0;
  overflow: hidden;
}

html[data-theme="ink"].ink-grid--graphite .cell,
html[data-theme="ink"][data-ink-grid="graphite"] .cell {
  background: transparent;
  border-right: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 0;
  color: #e8ecef;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

html[data-theme="ink"].ink-grid--graphite .cell.box-r,
html[data-theme="ink"][data-ink-grid="graphite"] .cell.box-r {
  border-right: 2px solid rgba(20, 184, 164, 0.4);
}

html[data-theme="ink"].ink-grid--graphite .cell.box-b,
html[data-theme="ink"][data-ink-grid="graphite"] .cell.box-b {
  border-bottom: 2px solid rgba(20, 184, 164, 0.4);
}

html[data-theme="ink"].ink-grid--graphite .cell.given,
html[data-theme="ink"].ink-grid--graphite .cell.given .glyph,
html[data-theme="ink"][data-ink-grid="graphite"] .cell.given,
html[data-theme="ink"][data-ink-grid="graphite"] .cell.given .glyph {
  color: #f3efe6;
}

html[data-theme="ink"].ink-grid--graphite .cell.entry,
html[data-theme="ink"].ink-grid--graphite .cell.entry .glyph,
html[data-theme="ink"][data-ink-grid="graphite"] .cell.entry,
html[data-theme="ink"][data-ink-grid="graphite"] .cell.entry .glyph {
  color: #5eead4;
}

html[data-theme="ink"].ink-grid--graphite .cell.selected,
html[data-theme="ink"][data-ink-grid="graphite"] .cell.selected {
  background: rgba(20, 184, 164, 0.22);
  box-shadow: inset 0 0 0 2px rgba(94, 234, 212, 0.55);
}

html[data-theme="ink"].ink-grid--graphite .cell.peer,
html[data-theme="ink"][data-ink-grid="graphite"] .cell.peer {
  background: rgba(255, 255, 255, 0.04);
}

html[data-theme="ink"].ink-grid--graphite .cell.same,
html[data-theme="ink"].ink-grid--graphite .cell.peer.same,
html[data-theme="ink"][data-ink-grid="graphite"] .cell.same,
html[data-theme="ink"][data-ink-grid="graphite"] .cell.peer.same {
  background: rgba(196, 92, 38, 0.2);
  box-shadow: inset 0 0 0 2px rgba(232, 140, 60, 0.75);
}

html[data-theme="ink"].ink-grid--graphite .notes,
html[data-theme="ink"][data-ink-grid="graphite"] .notes {
  color: rgba(180, 190, 195, 0.35);
}

html[data-theme="ink"].ink-grid--graphite .notes span.on,
html[data-theme="ink"][data-ink-grid="graphite"] .notes span.on {
  color: rgba(220, 230, 235, 0.85);
}

/* Ink night Depth slider chrome */
html[data-theme="ink"][data-ink-grid="night"] .field-range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 40px;
  margin: 0;
  padding: 0 4px;
  border: 1px solid rgba(243, 239, 230, 0.18);
  border-radius: 10px;
  background: rgba(8, 18, 24, 0.78);
  cursor: pointer;
}

html[data-theme="ink"][data-ink-grid="night"] .field-range::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 999px;
  background: rgba(20, 184, 164, 0.25);
}

html[data-theme="ink"][data-ink-grid="night"] .field-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  margin-top: -6px;
  border-radius: 50%;
  border: 2px solid rgba(243, 239, 230, 0.85);
  background: var(--accent-lit);
}

html[data-theme="ink"][data-ink-grid="night"] .field-range::-moz-range-track {
  height: 4px;
  border-radius: 999px;
  background: rgba(20, 184, 164, 0.25);
}

html[data-theme="ink"][data-ink-grid="night"] .field-range::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid rgba(243, 239, 230, 0.85);
  background: var(--accent-lit);
}

@media (max-width: 420px) {
  .field {
    flex: 1 1 30%;
  }

  .chrome-top {
    gap: 4px;
  }

  .chrome-top .stat {
    padding: 3px 6px;
  }

  .chrome-top .stat-label {
    font-size: 8px;
  }

  .chrome-top .stat-value {
    font-size: 11px;
  }

  .chrome-top #mistakes.stat-value,
  .chrome-top #timer.stat-value {
    font-size: 14px;
  }
}

/* —— Tablet portrait: taller column, same stack, larger board —— */
@media (min-width: 768px) and (max-width: 1023px) and (orientation: portrait) {
  :root {
    --app-max-w: 720px;
    --board-max: 620px;
    --board-width-cap: min(96vw, calc(var(--app-max-w) - (var(--content-inset-x) * 2)));
  }
}

/*
 * Wide play: board + controls side-by-side.
 * Triggers on tablet landscape or any viewport ≥1024px.
 */
@media (min-width: 768px) and (orientation: landscape), (min-width: 1024px) {
  :root {
    --app-max-w: 1100px;
    --board-max: 720px;
    --controls-rail-w: 260px;
    --scene-gap: 12px;
    /* Tools/pad sit beside the board — drop them from leftover height */
    --board-size: min(
      var(--board-width-cap),
      calc(100dvh - var(--fg-ad-h) - var(--content-inset-top) - var(--content-inset-bottom) - var(--chrome-top-h) - var(--streak-h) - (var(--scene-gap) * 3) - 16px),
      var(--board-max)
    );
    --board-width-cap: min(
      calc(100vw - (var(--content-inset-x) * 2) - var(--controls-rail-w) - var(--scene-gap) - 8px),
      calc(var(--app-max-w) - (var(--content-inset-x) * 2) - var(--controls-rail-w) - var(--scene-gap))
    );
  }

  .scene {
    display: grid;
    grid-template-columns: minmax(0, 1fr) var(--controls-rail-w);
    grid-template-rows: auto auto minmax(0, 1fr);
    grid-template-areas:
      "top top"
      "streak rail"
      "stage rail";
    align-items: start;
    column-gap: var(--scene-gap);
    row-gap: var(--scene-gap);
    flex: 1 1 auto;
    min-height: 0;
  }

  .chrome-top {
    grid-area: top;
  }

  .dragons-streak {
    grid-area: streak;
  }

  .stage {
    grid-area: stage;
    align-self: center;
    justify-self: center;
    width: 100%;
    max-width: var(--board-size);
  }

  .controls-rail {
    grid-area: rail;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: center;
    gap: var(--scene-gap);
    width: var(--controls-rail-w);
    max-width: 100%;
    min-width: 0;
    min-height: 0;
    align-self: center;
  }

  .controls-rail .tools {
    flex: 0 0 auto;
    height: auto;
    min-height: 0;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .controls-rail .tools .btn-tool {
    min-height: 64px;
    aspect-ratio: auto;
  }

  .controls-rail .pad-wrap {
    flex: 0 0 auto;
    min-height: 0;
    width: 100%;
  }

  /* Compact pad in the rail — override inline 9-across from buildNumpad() */
  .controls-rail .numpad {
    grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
    gap: 8px;
    width: 100%;
  }

  .controls-rail .num-btn {
    font-size: clamp(16px, 2.2vw, 22px);
  }

  .chrome-score-value {
    font-size: clamp(32px, 4vw, 48px);
  }

  .stat-value {
    font-size: clamp(12px, 1.6vw, 15px);
  }

  /* Beat theme-specific fixed --tools-h (themes load after this file) */
  html .controls-rail .tools {
    height: auto !important;
    flex: 0 0 auto !important;
    max-height: none !important;
  }

  html .controls-rail .tools .btn-tool {
    max-height: none !important;
  }

  /* Compact pad columns by board size (data-board-n set in game.js) */
  html[data-board-n="4"] .controls-rail .numpad {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  }

}

/* Temporarily hide surface debug controls (logic kept for later) */
.field-grid-debug,
.field-slab {
  display: none !important;
}

/* —— Start splash —— */
html.is-splash .app,
html.is-splash #gameApp {
  display: none !important;
}

html.is-playing .splash {
  display: none !important;
}

.splash {
  position: relative;
  z-index: 2;
  box-sizing: border-box;
  width: min(420px, calc(100% - 28px));
  margin: 0 auto;
  min-height: calc(100dvh - var(--fg-ad-h));
  padding: calc(24px + var(--fg-ad-h)) 20px 32px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: center;
  gap: 18px;
}

.splash-back {
  align-self: flex-start;
  margin-bottom: 4px;
}

.splash-title {
  font-family: var(--font-display);
  font-size: clamp(48px, 14vw, 72px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 0.95;
  margin: 0;
  background: linear-gradient(120deg, #f7f3ea 0%, #9ad9cf 55%, #14b8a4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: brand-in 0.7s var(--ease) both;
}

.splash-sub {
  margin: -6px 0 4px;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(243, 239, 230, 0.55);
}

.splash-fields {
  display: grid;
  gap: 12px;
  margin-top: 8px;
}

.splash-fields .field {
  flex: none;
}

.splash-actions {
  display: grid;
  gap: 10px;
  margin-top: 10px;
  width: 100%;
}

.splash-play {
  margin-top: 0;
  width: 100%;
  min-height: 52px;
  font-size: 18px;
  letter-spacing: 0.06em;
}

.splash-play.splash-secondary {
  background: transparent;
  color: inherit;
  box-shadow: none;
  border: 1px solid rgba(243, 239, 230, 0.28);
  opacity: 0.92;
}

html[data-theme="wireframe"] .splash-play.splash-secondary,
html[data-theme="minimal"] .splash-play.splash-secondary,
html[data-theme="ink"] .splash-play.splash-secondary,
html[data-theme="wood"] .splash-play.splash-secondary {
  border-color: rgba(40, 40, 40, 0.28);
  color: inherit;
}

html[data-theme="ink"] .splash-title {
  font-size: clamp(40px, 11.5vw, 58px);
  line-height: 1.05;
}

/* ═══════════════════════════════════════════
   Gray-box wireframe template (shared skeleton)
   Structural only — themes skin this later
   ═══════════════════════════════════════════ */

html[data-theme="wireframe"] {
  --ink: #2a2a2a;
  --ink-mid: #3a3a3a;
  --ink-lit: #4a4a4a;
  --paper: #d0d0d0;
  --paper-edge: #b8b8b8;
  --line: #9a9a9a;
  --line-strong: #555;
  --accent: #6a6a6a;
  --accent-lit: #8a8a8a;
  --warn: #777;
  --given: #222;
  --entry: #444;
  --conflict: #8a3030;
  --select: rgba(80, 80, 80, 0.28);
  --peer: rgba(80, 80, 80, 0.12);
  --shadow: rgba(0, 0, 0, 0.25);
  --wire-fill: #c4c4c4;
  --wire-fill-deep: #b0b0b0;
  --wire-stroke: #6e6e6e;
  --wire-label: #3d3d3d;
  --wire-bg: #ececec;
}

html[data-theme="wireframe"] {
  --content-inset-top: 6px;
  --card-inset-top: 0px;
  --card-inset-x: 0px;
  --card-inset-bottom: 0px;
  --content-offset-x: 0px;
  --content-offset-y: 0px;
}

html[data-theme="wireframe"] body {
  color: var(--wire-label);
  background: #6e6e6e;
}

html[data-theme="wireframe"] .atmosphere {
  background: #6e6e6e;
}

/* Gray-box shows a backdrop card; content sits on top and can move separately */
html[data-theme="wireframe"] .backdrop-card {
  display: block;
  background: #e4e4e4;
  border-radius: 18px 18px 0 0;
  box-shadow: 0 -2px 0 rgba(0, 0, 0, 0.06);
}

html[data-theme="wireframe"] .atmosphere::after {
  opacity: 0.04;
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.35) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.35) 1px, transparent 1px);
  background-size: 24px 24px;
}

html[data-theme="wireframe"] .splash-title {
  background: none;
  -webkit-background-clip: unset;
  background-clip: unset;
  color: #333;
}

html[data-theme="wireframe"] .splash-sub,
html[data-theme="wireframe"] .field-label,
html[data-theme="wireframe"] .back {
  color: rgba(40, 40, 40, 0.55);
}

html[data-theme="wireframe"] .field-select,
html[data-theme="wireframe"] .menu-trigger,
html[data-theme="wireframe"] .btn {
  background: var(--wire-fill);
  border: 2px solid var(--wire-stroke);
  color: var(--wire-label);
  border-radius: 6px;
  box-shadow: none;
}

html[data-theme="wireframe"] .btn-primary {
  background: var(--wire-fill-deep);
  border-color: var(--wire-stroke);
  color: var(--wire-label);
}

html[data-theme="wireframe"] .menu-list {
  background: #f0f0f0;
  border: 2px solid var(--wire-stroke);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

html[data-theme="wireframe"] .menu-option {
  color: var(--wire-label);
}

html[data-theme="wireframe"] .menu-option:hover,
html[data-theme="wireframe"] .menu-option:focus-visible,
html[data-theme="wireframe"] .menu-option.is-selected {
  background: rgba(0, 0, 0, 0.08);
  color: #222;
}

html[data-theme="wireframe"] .chrome-top,
html[data-theme="wireframe"] .tools {
  background: var(--wire-fill);
  border: 2px dashed var(--wire-stroke);
  border-radius: 8px;
  box-sizing: border-box;
}

html[data-theme="wireframe"] .chrome-top {
  padding: 0 6px;
}

html[data-theme="wireframe"] {
  --tools-h: 82rem;
}

html[data-theme="wireframe"] .tools {
  padding: 7rem;
  gap: 8rem;
  align-items: center;
  box-sizing: border-box;
}

/* Numpad sits free — no dashed frame; same outer width as the tools row */
html[data-theme="wireframe"] .pad-wrap {
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 0;
  width: 100%;
  box-sizing: border-box;
}

html[data-theme="wireframe"] .numpad {
  width: 100%;
  gap: 6rem;
  grid-template-columns: repeat(9, minmax(0, 1fr));
}

/* Chevron-only back + gear matched to Minimal sizing */
html[data-theme="wireframe"] .back-btn .chrome-btn-label {
  display: none;
}

html[data-theme="wireframe"] .chrome-nav .back-btn,
html[data-theme="wireframe"] .chrome-nav #btnPause {
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  padding: 0;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--wire-fill-deep);
  border: 2px solid var(--wire-stroke);
  color: var(--wire-label);
  box-shadow: none;
}

html[data-theme="wireframe"] .chrome-nav .back-btn .chrome-btn-icon,
html[data-theme="wireframe"] .chrome-nav #btnPause .chrome-btn-icon {
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  color: var(--wire-label);
}

html[data-theme="wireframe"] .chrome-btn {
  background: var(--wire-fill-deep);
  border: 2px solid var(--wire-stroke);
  border-radius: 8px;
  color: var(--wire-label);
}

html[data-theme="wireframe"] .chrome-icon-btn {
  width: 40px;
  height: 40px;
  flex-basis: 40px;
}

html[data-theme="wireframe"] .stat-label {
  color: rgba(40, 40, 40, 0.55);
}

html[data-theme="wireframe"] .stat-value,
html[data-theme="wireframe"] .chrome-score-value {
  color: var(--wire-label);
}

html[data-theme="wireframe"] .board-slot {
  border: 2px dashed var(--wire-stroke);
  border-radius: 8px;
  background: rgba(180, 180, 180, 0.35);
  padding: 4px;
  box-sizing: border-box;
}

html[data-theme="wireframe"] .board {
  background: #d8d8d8;
  border: 3px solid #555;
  border-radius: 4px;
  box-shadow: none;
  color: #222;
}

html[data-theme="wireframe"] .cell {
  border-right: 1px solid #9a9a9a;
  border-bottom: 1px solid #9a9a9a;
}

html[data-theme="wireframe"] .cell.box-r {
  border-right: 2px solid #444;
}

html[data-theme="wireframe"] .cell.box-b {
  border-bottom: 2px solid #444;
}

html[data-theme="wireframe"] .cell.selected {
  background: rgba(80, 80, 80, 0.22);
  box-shadow: inset 0 0 0 2px #555;
}

html[data-theme="wireframe"] .cell.peer {
  background: rgba(80, 80, 80, 0.1);
}

html[data-theme="wireframe"] .cell.same,
html[data-theme="wireframe"] .cell.peer.same {
  background: rgba(200, 160, 60, 0.28);
  box-shadow: inset 0 0 0 2px rgba(180, 140, 40, 0.55);
}

html[data-theme="wireframe"] .tools .btn-tool {
  background: var(--wire-fill-deep);
  border: 2px solid var(--wire-stroke);
  border-radius: 14rem;
  color: var(--wire-label);
  aspect-ratio: 1.35 / 1;
  align-self: center;
  width: 100%;
  max-width: none;
  height: auto;
  max-height: calc(var(--tools-h) - 14rem);
  margin: 0;
}

html[data-theme="wireframe"] .tools .btn-tool[aria-pressed="true"] {
  background: #8a8a8a;
  border-color: #333;
  color: #111;
  box-shadow: inset 0 0 0 2px #555;
}

html[data-theme="wireframe"] .tools .btn-tool:disabled {
  opacity: 0.4;
  border-style: dashed;
}

html[data-theme="wireframe"] .tool-badge {
  top: 2px;
  right: 3px;
  padding: 1px 4px;
  border-radius: 4px;
  background: #555;
  color: #f0f0f0;
  font-size: 8px;
  opacity: 1;
}

html[data-theme="wireframe"] .tools .btn-tool[aria-pressed="true"] .tool-badge {
  background: #222;
  color: #fff;
}

html[data-theme="wireframe"] .tool-badge.is-count {
  background: #444;
  color: #fff;
  border: 1px solid #222;
}

html[data-theme="wireframe"] .tools .btn-tool.is-empty .tool-badge.is-count {
  opacity: 0.35;
}

html[data-theme="wireframe"] .settings-actions .btn-tool {
  width: 100%;
  aspect-ratio: auto;
  border-radius: 6px;
  flex-direction: row;
}

html[data-theme="wireframe"] .num-btn {
  background: var(--wire-fill-deep);
  border: 2px solid var(--wire-stroke);
  color: var(--wire-label);
  border-radius: 6rem;
  min-width: 0;
  width: 100%;
}

html[data-theme="wireframe"] .num-btn:hover {
  background: #9e9e9e;
  border-color: #444;
}

html[data-theme="wireframe"] .overlay {
  background: rgba(40, 40, 40, 0.45);
}

html[data-theme="wireframe"] .overlay-card {
  background: #e8e8e8;
  border: 2px solid var(--wire-stroke);
  color: var(--wire-label);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.18);
}

html[data-theme="wireframe"] .overlay-card h2 {
  color: #222;
}

html[data-theme="wireframe"] .overlay-card p {
  color: rgba(40, 40, 40, 0.7);
}

/* ═══════════════════════════════════════════
   Dragons — gray-box overrides
   ═══════════════════════════════════════════ */

/* Dragons has tools but no number pad — keep pad reservation at 0 (set in :root). */
html[data-theme="wireframe"] {
  --pad-h: 0px;
}

.dragons-chrome {
  grid-template-columns: 1fr auto 1fr;
}

.chrome-stat-diff,
.chrome-stat-best {
  visibility: hidden !important;
}

.chrome-timer {
  display: flex;
  align-items: center;
  justify-content: center;
  justify-self: center;
}

.chrome-timer-value {
  font-family: var(--font-mono);
  font-size: clamp(22px, 6.5vw, 34px);
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  color: var(--wire-label, #e8fff9);
  white-space: nowrap;
}

html[data-theme="wireframe"] .chrome-timer-value {
  color: var(--wire-label);
}

.dragons-streak {
  flex: 0 0 var(--streak-h);
  height: var(--streak-h);
  display: flex;
  align-items: center;
  gap: 8px;
  width: min(var(--board-width-pct), var(--board-size));
  max-width: 100%;
  min-width: 0;
  margin: 0 auto;
  padding: 0;
  box-sizing: border-box;
  align-self: center;
  justify-self: center;
}

.dragons-streak-mult {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(12px, 2.6vw, 14px);
  letter-spacing: 0.04em;
  color: var(--wire-label, #e8fff9);
  text-align: left;
  flex: 0 0 auto;
}

.dragons-streak-track {
  display: flex;
  flex: 1 1 0%;
  align-items: center;
  min-width: 0;
  height: 10px;
}

.dragons-streak-lights {
  display: flex;
  flex: 1 1 0%;
  flex-direction: row;
  align-items: center;
  gap: 3px;
  width: 100%;
  min-width: 0;
}

.dragons-streak-pip {
  display: block;
  flex: 1 1 0;
  min-width: 0;
  height: 8px;
  border-radius: 999px;
  background: rgba(40, 40, 40, 0.12);
  border: 1px solid rgba(40, 40, 40, 0.22);
  box-sizing: border-box;
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.dragons-streak-pip.is-on {
  background: #2f2f2f;
  border-color: #222;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.dragons-streak-pip.is-partial {
  background: linear-gradient(
    90deg,
    #2f2f2f calc(var(--pip-partial, 0) * 100%),
    rgba(40, 40, 40, 0.12) calc(var(--pip-partial, 0) * 100%)
  );
  border-color: rgba(40, 40, 40, 0.35);
}

.dragons-streak.is-reset .dragons-streak-pip.is-on,
.dragons-streak.is-reset .dragons-streak-pip.is-partial {
  background: var(--conflict);
  border-color: var(--conflict);
  box-shadow: none;
}

.dragons-streak-score {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(12px, 2.6vw, 14px);
  font-variant-numeric: tabular-nums;
  color: var(--wire-label, #e8fff9);
  text-align: right;
  flex: 0 0 auto;
}

html[data-theme="wireframe"] .score-float.is-pos {
  color: #1a7a3c;
}

html[data-theme="wireframe"] .score-float.is-combo {
  color: #8a6d12;
}

.biome-canvas {
  position: absolute;
  z-index: 0;
  pointer-events: none;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  border-radius: 4px;
  overflow: hidden;
}

html[data-terrain="colors"] .biome-canvas {
  display: none;
}

.dragons-board {
  position: relative;
  z-index: 1;
  border-radius: 4px;
  /* Let landing dust spray past cell edges. */
  overflow: visible;
}

html[data-terrain="biomes"] .dragons-board,
html[data-theme="wireframe"][data-terrain="biomes"] .dragons-board {
  background: transparent;
  box-shadow: none;
}

.dragons-cell {
  appearance: none;
  border: none;
  padding: 0;
  margin: 0;
  font: inherit;
  color: inherit;
  position: relative;
  border-right: 1px solid rgba(0, 0, 0, 0.12);
  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
}

/* Place ripple: shadow on cell; tint fades on a separate overlay layer */
.dragons-cell.place-ripple {
  z-index: 5;
  animation: place-tile-ripple 0.72s cubic-bezier(0.22, 0.8, 0.28, 1) both;
  animation-delay: var(--ripple-delay, 0ms);
}

.dragons-cell.place-ripple::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background: rgba(42, 93, 103, 0.28);
  animation: place-ripple-tint-fade 0.72s ease-out both;
  animation-delay: var(--ripple-delay, 0ms);
}

@keyframes place-tile-ripple {
  0% {
    transform: scale(1);
    box-shadow: 0 1px 2px rgba(20, 30, 35, 0.55);
  }
  32% {
    transform: scale(1.14);
    box-shadow: 0 18px 30px rgba(20, 30, 35, 0.2);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 1px 2px rgba(20, 30, 35, 0.55);
  }
}

@keyframes place-ripple-tint-fade {
  0% { opacity: 0; }
  22% { opacity: 1; }
  48% { opacity: 1; }
  100% { opacity: 0; }
}

/* Row / column selection tint (single-tap highlight) */
.dragons-cell.hl-row,
.dragons-cell.hl-col {
  background: rgba(255, 138, 26, 0.16);
}

html[data-terrain="biomes"] .dragons-cell.hl-row,
html[data-terrain="biomes"] .dragons-cell.hl-col {
  background: rgba(255, 138, 26, 0.18);
}

html[data-theme="atlas"] .dragons-cell.hl-row,
html[data-theme="atlas"] .dragons-cell.hl-col {
  background: rgba(42, 93, 103, 0.14);
}

html[data-theme="atlas"] .dragons-cell.hl-row.hl-col {
  background: rgba(42, 93, 103, 0.22);
}

html[data-terrain="biomes"] .dragons-cell {
  background: transparent;
  transition: none;
  border-right: 1px solid rgba(0, 0, 0, 0.08);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.dragons-cell.region-edge-r {
  border-right: 3px solid #444;
}

.dragons-cell.region-edge-b {
  border-bottom: 3px solid #444;
}

/* Region borders are painted into the biome canvas; keep cell edges light. */
html[data-terrain="biomes"] .dragons-cell.region-edge-r {
  border-right: 1px solid rgba(0, 0, 0, 0.1);
}

html[data-terrain="biomes"] .dragons-cell.region-edge-b {
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

/* Occupied row/col grid lines → piece tint (after region-edge so color/width stick) */
.dragons-cell.axis-row,
.dragons-cell.axis-row-above,
.dragons-cell.axis-row.region-edge-b,
.dragons-cell.axis-row-above.region-edge-b {
  border-bottom: 1px solid var(--piece-tint, #2a5d67);
}

.dragons-cell.axis-col,
.dragons-cell.axis-col-left,
.dragons-cell.axis-col.region-edge-r,
.dragons-cell.axis-col-left.region-edge-r {
  border-right: 1px solid var(--piece-tint, #2a5d67);
}

.dragons-cell.has-dragon .glyph {
  display: none;
}

.dragons-cell .glyph-crown {
  position: absolute;
  /* Stone tiles already include bevel + face — show full art, no cream frame. */
  inset: 4%;
  display: none;
  align-items: center;
  justify-content: center;
  border-radius: 0;
  overflow: visible;
  background: transparent;
  box-shadow: none;
  pointer-events: none;
  z-index: 2;
}

.dragons-cell.has-dragon .glyph-crown {
  display: flex;
}

.dragons-cell .glyph-crown[hidden] {
  display: none !important;
}

.dragons-cell .crown-piece {
  width: 135%;
  height: 135%;
  object-fit: contain;
  object-position: center;
  display: block;
  border-radius: 0;
  filter: drop-shadow(0 4px 3px rgba(0, 0, 0, 0.4));
}

.dragons-cell.given.has-dragon .crown-piece {
  filter:
    drop-shadow(0 4px 3px rgba(0, 0, 0, 0.4))
    drop-shadow(0 0 3px rgba(42, 93, 103, 0.45));
}

/* Ember dragons: keep art colors; conflict = red glow only */
.dragons-cell.conflict.has-dragon .crown-piece {
  filter:
    drop-shadow(0 4px 3px rgba(0, 0, 0, 0.4))
    drop-shadow(0 0 5px rgba(220, 45, 30, 0.95))
    drop-shadow(0 0 12px rgba(180, 35, 24, 0.7))
    drop-shadow(0 0 22px rgba(180, 35, 24, 0.4));
}

/* Win reveal: scale piece 20%, leave cell color alone */
.dragons-cell.unit-pulse {
  animation: none;
  background: transparent;
  box-shadow: none;
  z-index: 3;
}

.dragons-cell.unit-pulse .glyph {
  animation: none;
}

.dragons-cell.unit-pulse .glyph-crown {
  transform-origin: center center;
  animation: dragons-piece-win-scale 0.55s var(--ease) both;
}

html[data-terrain="biomes"] .dragons-cell .glyph-crown {
  box-shadow: none;
}

html[data-terrain="biomes"] .dragons-cell.conflict.has-dragon .glyph-crown {
  box-shadow: none;
}

/* Selection: no orange selection square — row/col wash handles focus */
.dragons-cell.selected {
  background: transparent;
  box-shadow: none;
}

.dragons-cell.selected:not(.has-dragon) {
  background: transparent;
  box-shadow: none;
}

.dragons-cell.selected.has-dragon {
  background: transparent;
  box-shadow: none;
}

/* King-flag markers (replace ×) */
.dragons-cell .mark-flag {
  position: absolute;
  left: 50%;
  top: 52%;
  width: 72%;
  height: 78%;
  transform: translate(-50%, -50%);
  object-fit: contain;
  object-position: center bottom;
  pointer-events: none;
  z-index: 2;
  display: block;
  filter: drop-shadow(0 2px 2px rgba(0, 0, 0, 0.35));
}

.dragons-cell .mark-flag[hidden] {
  display: none !important;
}

/* Drop onto the map: piece falls, squashes on hit, dust kicks sideways. */
.dragons-cell .piece-dust {
  position: absolute;
  left: 50%;
  top: 78%;
  width: 0;
  height: 0;
  pointer-events: none;
  z-index: 5;
}

.dragons-cell .piece-dust::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 22px;
  height: 10px;
  margin: -5px -11px;
  border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(176, 142, 96, 0.55) 0%, rgba(176, 142, 96, 0) 72%);
  opacity: 0;
  transform: scale(0.35);
}

.dragons-cell .dust-mote {
  position: absolute;
  left: 0;
  top: 0;
  width: var(--sz, 6px);
  height: calc(var(--sz, 6px) * 0.75);
  border-radius: 50% 40% 55% 45%;
  background: var(--dust, #c2a17a);
  box-shadow: 0 0 0 1px rgba(90, 70, 45, 0.12);
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.25);
}

.dragons-cell .dust-mote:nth-child(1) { --dx: -30px; --dy: -8px; --sz: 7px; --dust: #c4a06e; --delay: 0ms; --sc: 1.1; }
.dragons-cell .dust-mote:nth-child(2) { --dx: -40px; --dy: 2px; --sz: 5px; --dust: #a88860; --delay: 20ms; --sc: 0.9; }
.dragons-cell .dust-mote:nth-child(3) { --dx: -24px; --dy: 8px; --sz: 6px; --dust: #d2b48c; --delay: 35ms; --sc: 1; }
.dragons-cell .dust-mote:nth-child(4) { --dx: 30px; --dy: -7px; --sz: 7px; --dust: #c4a06e; --delay: 5ms; --sc: 1.1; }
.dragons-cell .dust-mote:nth-child(5) { --dx: 42px; --dy: 3px; --sz: 5px; --dust: #a88860; --delay: 25ms; --sc: 0.95; }
.dragons-cell .dust-mote:nth-child(6) { --dx: 26px; --dy: 9px; --sz: 6px; --dust: #d2b48c; --delay: 40ms; --sc: 1; }

/* Extra soft ground haze layers for a thicker landing puff. */
.dragons-cell .piece-dust::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 36px;
  height: 14px;
  margin: -7px -18px;
  border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(160, 128, 88, 0.4) 0%, rgba(160, 128, 88, 0) 70%);
  opacity: 0;
  transform: scale(0.3);
}

.dragons-cell.piece-landing {
  overflow: visible;
  z-index: 6;
}

.dragons-cell.piece-landing .glyph-crown {
  transform-origin: 50% 90%;
  animation: piece-drop-land 0.45s cubic-bezier(0.2, 0.85, 0.25, 1) both;
}

.dragons-cell.piece-landing .piece-dust::before {
  animation: dust-ground-puff 0.42s ease-out 0.2s both;
}

.dragons-cell.piece-landing .piece-dust::after {
  animation: dust-ground-puff-wide 0.52s ease-out 0.22s both;
}

.dragons-cell.piece-landing .dust-mote {
  animation: dust-kick 0.52s ease-out calc(0.2s + var(--delay, 0ms)) both;
}

@keyframes piece-drop-land {
  0% {
    transform: translateY(-72%) scale(0.9, 1.08);
    opacity: 0;
  }
  35% {
    opacity: 1;
  }
  58% {
    transform: translateY(7%) scale(1.1, 0.84);
  }
  76% {
    transform: translateY(-5%) scale(0.96, 1.05);
  }
  100% {
    transform: translateY(0) scale(1);
  }
}

@keyframes dust-ground-puff {
  0% {
    opacity: 0;
    transform: scale(0.3);
  }
  30% {
    opacity: 0.85;
    transform: scale(1.15, 1);
  }
  100% {
    opacity: 0;
    transform: scale(1.8, 0.85);
  }
}

@keyframes dust-ground-puff-wide {
  0% {
    opacity: 0;
    transform: scale(0.25, 0.4);
  }
  28% {
    opacity: 0.7;
    transform: scale(1.35, 0.95);
  }
  100% {
    opacity: 0;
    transform: scale(2.4, 0.7);
  }
}

@keyframes dust-kick {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.2);
  }
  16% {
    opacity: 0.95;
  }
  100% {
    opacity: 0;
    transform: translate(calc(-50% + var(--dx)), calc(-50% + var(--dy))) scale(var(--sc, 1));
  }
}

@media (prefers-reduced-motion: reduce) {
  .dragons-cell.piece-landing .glyph-crown,
  .dragons-cell.piece-landing .piece-dust::before,
  .dragons-cell.piece-landing .piece-dust::after,
  .dragons-cell.piece-landing .dust-mote {
    animation: none;
  }
}

.dragons-cell.has-mark .glyph {
  display: none;
}

html[data-terrain="biomes"] .dragons-cell.has-mark .glyph {
  display: none;
}

.rules-panel {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  background: var(--wire-fill, rgba(8, 18, 24, 0.4));
  border: 2px dashed var(--wire-stroke, rgba(243, 239, 230, 0.18));
  box-sizing: border-box;
}

/* Phone: tuck rules so the square board can claim width (Ink-style full column). */
@media (max-width: 767px) {
  .rules-panel {
    padding: 6px 10px;
  }
  .rules-panel p {
    font-size: 11px;
    line-height: 1.35;
  }
}

html[data-theme="wireframe"] .rules-panel {
  background: var(--wire-fill);
  border: 2px dashed var(--wire-stroke);
}

.rules-panel p {
  font-size: 12px;
  line-height: 1.45;
  color: rgba(40, 40, 40, 0.72);
  text-align: center;
}

html[data-theme="wireframe"] .rules-panel p {
  color: rgba(40, 40, 40, 0.72);
}

html[data-theme="wireframe"] .dragons-cell.selected {
  background: transparent;
  box-shadow: none;
}

html[data-theme="wireframe"] .dragons-cell.selected:not(.has-dragon) {
  background: rgba(255, 140, 40, 0.14);
  box-shadow: inset 0 0 0 2px rgba(255, 120, 30, 0.55);
}

html[data-theme="wireframe"] .dragons-cell.selected.has-dragon {
  background: transparent;
  box-shadow: none;
}

html[data-theme="wireframe"] .dragons-cell.conflict {
  background: transparent;
  box-shadow: none;
}

html[data-theme="wireframe"] .tools {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

/* ═══════════════════════════════════════════
   Atlas — parchment fantasy-map theme (Dragons)
   ═══════════════════════════════════════════ */

html[data-theme="atlas"] {
  --piece-tint: #2a5d67;
  --ink: #1e3d45;
  --ink-mid: #2a5d67;
  --ink-lit: #3a7580;
  --paper: #f7f4ec;
  --paper-edge: #e6e0d2;
  --line: #cfc6b4;
  --line-strong: #2a5d67;
  --accent: #2a5d67;
  --accent-lit: #3d7a86;
  --warn: #b8860b;
  --given: #1e3d45;
  --entry: #2a5d67;
  --conflict: #b42318;
  --select: rgba(42, 93, 103, 0.14);
  --peer: rgba(42, 93, 103, 0.07);
  --shadow: rgba(30, 50, 55, 0.18);
  --atlas-cream: #f9f7f1;
  --atlas-card: #ffffff;
  --atlas-gold: #c9a24a;
  --atlas-gold-soft: rgba(201, 162, 74, 0.55);
  --atlas-teal: #2a5d67;
  --atlas-teal-deep: #1e4a52;
  --atlas-ink: #24383c;
  --atlas-muted: rgba(36, 56, 60, 0.55);
  --font-display: "Source Sans 3", "Segoe UI", sans-serif;
  --font-brand: "Cinzel", "Palatino Linotype", "Book Antiqua", serif;
  --font-mono: "IBM Plex Mono", "Consolas", monospace;
  --pad-h: 0px;
  --tools-h: 86px;
  --streak-h: 24px;
  --chrome-top-h: 56px;
  --content-inset-top: 8px;
  --scene-gap: 8px;
  --card-inset-top: 0px;
  --card-inset-x: 0px;
  --card-inset-bottom: 0px;
}

html[data-theme="atlas"] body {
  color: var(--atlas-ink);
  background: #e8e4d8;
  font-family: var(--font-display);
}

html[data-theme="atlas"] .atmosphere {
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(255, 255, 255, 0.55), transparent 55%),
    linear-gradient(180deg, #efebe0 0%, #e4dfd0 55%, #ddd6c4 100%);
}

html[data-theme="atlas"] .atmosphere::after {
  opacity: 0.035;
  background-image:
    linear-gradient(rgba(42, 93, 103, 0.35) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 93, 103, 0.35) 1px, transparent 1px);
  background-size: 22px 22px;
}

html[data-theme="atlas"] .backdrop-card {
  display: block;
  background: var(--atlas-cream);
  border-radius: 20px 20px 0 0;
  box-shadow: 0 -1px 0 rgba(201, 162, 74, 0.25);
}

/* —— Splash —— */
html[data-theme="atlas"] .splash-title {
  background: none;
  -webkit-background-clip: unset;
  background-clip: unset;
  color: var(--atlas-teal);
  font-family: var(--font-brand);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

html[data-theme="atlas"] .splash-sub,
html[data-theme="atlas"] .field-label,
html[data-theme="atlas"] .back {
  color: var(--atlas-muted);
}

html[data-theme="atlas"] .field-select,
html[data-theme="atlas"] .menu-trigger,
html[data-theme="atlas"] .btn {
  background: var(--atlas-card);
  border: 1.5px solid var(--atlas-gold-soft);
  color: var(--atlas-ink);
  border-radius: 12px;
  box-shadow: 0 2px 6px rgba(30, 50, 55, 0.06);
}

html[data-theme="atlas"] .btn-primary {
  background: var(--atlas-teal);
  border-color: var(--atlas-teal-deep);
  color: #fff;
}

html[data-theme="atlas"] .menu-list {
  background: var(--atlas-card);
  border: 1.5px solid var(--atlas-gold-soft);
  box-shadow: 0 10px 24px rgba(30, 50, 55, 0.14);
}

html[data-theme="atlas"] .menu-option {
  color: var(--atlas-ink);
}

html[data-theme="atlas"] .menu-option:hover,
html[data-theme="atlas"] .menu-option:focus-visible,
html[data-theme="atlas"] .menu-option.is-selected {
  background: rgba(42, 93, 103, 0.1);
  color: var(--atlas-teal-deep);
}

html[data-theme="atlas"] .chrome-band {
  padding: 0;
}

html[data-theme="atlas"] .chrome-top {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  column-gap: 6px;
  padding: 5px 6px 5px 8px;
  background: var(--atlas-card);
  border: 1.5px solid var(--atlas-gold-soft);
  border-radius: 14px;
  box-shadow: 0 2px 8px rgba(30, 50, 55, 0.07);
  box-sizing: border-box;
}

html[data-theme="atlas"] .chrome-nav {
  padding: 5px 6px 5px 8px;
  box-sizing: border-box;
}

html[data-theme="atlas"] .dragons-chrome {
  grid-template-columns: 1fr auto 1fr;
}

html[data-theme="atlas"] .chrome-top .stat {
  background: transparent;
  padding: 2px 6px;
  border-radius: 0;
  justify-self: center;
}

html[data-theme="atlas"] .back-btn .chrome-btn-label {
  display: none;
}

html[data-theme="atlas"] .chrome-nav .back-btn {
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  padding: 0;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(42, 93, 103, 0.1);
  border: 1.5px solid var(--atlas-gold-soft);
  color: var(--atlas-teal);
  box-shadow: none;
}

html[data-theme="atlas"] .chrome-nav .back-btn .chrome-btn-icon {
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  color: var(--atlas-teal);
}

html[data-theme="atlas"] .stat-label {
  color: var(--atlas-muted);
  font-family: var(--font-brand);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

html[data-theme="atlas"] .stat-value,
html[data-theme="atlas"] .chrome-score-value {
  color: var(--atlas-teal);
  font-weight: 700;
}

html[data-theme="atlas"] .chrome-timer {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 10px;
  background: rgba(42, 93, 103, 0.06);
}

html[data-theme="atlas"] .chrome-timer-icon {
  display: flex;
  color: var(--atlas-teal);
  opacity: 0.85;
}

html[data-theme="atlas"] .chrome-timer-value {
  color: var(--atlas-teal);
  font-size: clamp(18px, 5.2vw, 26px);
}

html[data-theme="atlas"] .chrome-nav #btnPause {
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  padding: 0;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--atlas-teal);
  border: none;
  color: #fff;
  box-shadow: 0 2px 6px rgba(30, 70, 80, 0.28);
}

html[data-theme="atlas"] .chrome-nav #btnPause .chrome-btn-icon {
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  color: #fff;
  letter-spacing: 2px;
}

html[data-theme="atlas"] .chrome-btn {
  background: var(--atlas-teal);
  border: none;
  border-radius: 12px;
  color: #fff;
}

/* —— Streak —— */
html[data-theme="atlas"] .dragons-streak-mult {
  color: var(--atlas-teal);
  font-size: clamp(12px, 2.6vw, 14px);
}

html[data-theme="atlas"] .dragons-streak-score {
  color: var(--atlas-teal);
  font-size: clamp(12px, 2.6vw, 14px);
}

html[data-theme="atlas"] .dragons-streak-pip {
  background: rgba(42, 93, 103, 0.1);
  border-color: rgba(42, 93, 103, 0.22);
  border-radius: 3px;
  height: 7px;
}

html[data-theme="atlas"] .dragons-streak-pip.is-on {
  background: var(--atlas-teal);
  border-color: var(--atlas-teal-deep);
  box-shadow: none;
}

html[data-theme="atlas"] .dragons-streak-pip.is-partial {
  background: linear-gradient(
    90deg,
    var(--atlas-teal) calc(var(--pip-partial, 0) * 100%),
    rgba(42, 93, 103, 0.1) calc(var(--pip-partial, 0) * 100%)
  );
  border-color: rgba(42, 93, 103, 0.35);
}

/* —— Board frame —— */
html[data-theme="atlas"] .chrome-band,
html[data-theme="atlas"] .dragons-streak,
html[data-theme="atlas"] .board-slot,
html[data-theme="atlas"] .tools,
html[data-theme="atlas"] .rules-panel {
  width: min(var(--board-width-pct), var(--board-size));
  max-width: 100%;
  margin-left: auto;
  margin-right: auto;
  align-self: center;
}

html[data-theme="atlas"] .board-slot {
  position: relative;
  border: 1.5px solid var(--atlas-gold);
  border-radius: 18px;
  background: #f3efe4;
  padding: 3px;
  box-sizing: border-box;
  box-shadow: 0 4px 14px rgba(30, 50, 55, 0.1);
  overflow: hidden;
}

html[data-theme="atlas"] .board-slot::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  z-index: 3;
  background: radial-gradient(
    ellipse 92% 92% at 50% 48%,
    rgba(20, 35, 40, 0) 55%,
    rgba(20, 35, 40, 0.22) 100%
  );
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.22),
    inset 0 0 28px rgba(20, 35, 40, 0.28),
    inset 0 18px 36px rgba(20, 35, 40, 0.35),
    inset 0 -14px 28px rgba(20, 35, 40, 0.28),
    inset 0 0 0 10px rgba(20, 35, 40, 0.06);
}

html[data-theme="atlas"] .board {
  background: #ebe6d8;
  border: none;
  border-radius: 15px;
  box-shadow: none;
  color: var(--atlas-ink);
}

html[data-theme="atlas"][data-terrain="biomes"] .board-slot {
  background: transparent;
}

html[data-theme="atlas"][data-terrain="biomes"] .dragons-board {
  background: transparent;
  box-shadow: none;
  border-radius: 15px;
}

html[data-theme="atlas"] .biome-canvas {
  border-radius: 15px;
}

html[data-theme="atlas"] .dragons-cell {
  border-right-color: rgba(42, 93, 103, 0.1);
  border-bottom-color: rgba(42, 93, 103, 0.1);
}

html[data-theme="atlas"] .dragons-cell.axis-row,
html[data-theme="atlas"] .dragons-cell.axis-row-above,
html[data-theme="atlas"] .dragons-cell.axis-row.region-edge-b,
html[data-theme="atlas"] .dragons-cell.axis-row-above.region-edge-b {
  border-bottom: 1px solid var(--piece-tint, #2a5d67);
}

html[data-theme="atlas"] .dragons-cell.axis-col,
html[data-theme="atlas"] .dragons-cell.axis-col-left,
html[data-theme="atlas"] .dragons-cell.axis-col.region-edge-r,
html[data-theme="atlas"] .dragons-cell.axis-col-left.region-edge-r {
  border-right: 1px solid var(--piece-tint, #2a5d67);
}

html[data-theme="atlas"] .dragons-cell.selected {
  background: transparent;
  box-shadow: none;
}

html[data-theme="atlas"] .dragons-cell.selected:not(.has-dragon) {
  background: transparent;
  box-shadow: none;
}

html[data-theme="atlas"] .dragons-cell.selected.has-dragon {
  background: transparent;
  box-shadow: none;
}

html[data-theme="atlas"] .dragons-cell .mark-flag {
  width: 68%;
  height: 68%;
  top: 50%;
}

html[data-theme="atlas"] .dragons-cell.conflict {
  background: transparent;
}

html[data-theme="atlas"] .dragons-cell .glyph-crown {
  box-shadow: none;
  background: transparent;
}

/* White line-art piece → #2A5D67 teal; 35% smaller than Ember scale */
html[data-theme="atlas"] .dragons-cell .crown-piece {
  width: 87.75%;
  height: 87.75%;
  filter:
    brightness(0)
    saturate(100%)
    invert(23%)
    sepia(87%)
    saturate(292%)
    hue-rotate(142deg)
    brightness(1.09)
    contrast(0.89)
    drop-shadow(0 2px 2px rgba(30, 50, 55, 0.28));
}

html[data-theme="atlas"] .dragons-cell.given.has-dragon .crown-piece {
  filter:
    brightness(0)
    saturate(100%)
    invert(23%)
    sepia(87%)
    saturate(292%)
    hue-rotate(142deg)
    brightness(1.09)
    contrast(0.89)
    drop-shadow(0 2px 2px rgba(30, 50, 55, 0.28))
    drop-shadow(0 0 3px rgba(42, 93, 103, 0.45));
}

html[data-theme="atlas"] .dragons-cell.conflict.has-dragon .crown-piece {
  filter:
    brightness(0)
    saturate(100%)
    invert(15%)
    sepia(67%)
    saturate(1712%)
    hue-rotate(316deg)
    brightness(1.09)
    contrast(0.8)
    drop-shadow(0 2px 2px rgba(30, 50, 55, 0.28))
    drop-shadow(0 0 5px rgba(180, 35, 24, 0.65));
}

/* —— Tools —— */
html[data-theme="atlas"] .tools {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  padding: 0;
  background: transparent;
  border: none;
  box-shadow: none;
  align-items: stretch;
  box-sizing: border-box;
}

html[data-theme="atlas"] .tools .btn-tool {
  position: relative;
  background: linear-gradient(180deg, #fffcf6 0%, #f3eee3 100%);
  border: 1.5px solid var(--atlas-gold);
  border-radius: 14px;
  color: var(--atlas-teal);
  aspect-ratio: 1.45 / 1;
  align-self: center;
  width: 100%;
  height: auto;
  max-height: calc(var(--tools-h) - 4px);
  margin: 0;
  box-shadow: 0 2px 6px rgba(30, 50, 55, 0.08);
  overflow: visible;
}

html[data-theme="atlas"] #btnMark.btn-tool {
  visibility: hidden;
  pointer-events: none;
}

html[data-theme="atlas"] .tools .btn-tool::before,
html[data-theme="atlas"] .tools .btn-tool::after {
  content: "";
  position: absolute;
  width: 8px;
  height: 8px;
  border: 1.5px solid var(--atlas-gold);
  pointer-events: none;
  opacity: 0.85;
}

html[data-theme="atlas"] .tools .btn-tool::before {
  top: 5px;
  left: 5px;
  border-right: none;
  border-bottom: none;
  border-radius: 2px 0 0 0;
}

html[data-theme="atlas"] .tools .btn-tool::after {
  bottom: 5px;
  right: 5px;
  border-left: none;
  border-top: none;
  border-radius: 0 0 2px 0;
}

html[data-theme="atlas"] .tools .btn-tool .tool-icon {
  color: var(--atlas-teal);
  font-size: 22px;
}

html[data-theme="atlas"] .tools .btn-tool .tool-label {
  color: var(--atlas-teal);
  font-family: var(--font-brand);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
}

html[data-theme="atlas"] .tools .btn-tool[aria-pressed="true"] {
  background: linear-gradient(180deg, #e7f2f4 0%, #d5e8ec 100%);
  border-color: var(--atlas-teal);
  color: var(--atlas-teal-deep);
  box-shadow: inset 0 0 0 1px rgba(42, 93, 103, 0.2);
}

html[data-theme="atlas"] .tools .btn-tool:disabled {
  opacity: 0.42;
}

html[data-theme="atlas"] .tool-badge {
  top: 4px;
  right: 6px;
  padding: 1px 5px;
  border-radius: 999px;
  background: var(--atlas-teal);
  color: #fff;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.04em;
  opacity: 1;
  z-index: 1;
}

html[data-theme="atlas"] .tools .btn-tool[aria-pressed="true"] .tool-badge {
  background: var(--atlas-teal-deep);
  color: #fff;
}

html[data-theme="atlas"] .settings-actions .btn-tool {
  width: 100%;
  aspect-ratio: auto;
  border-radius: 12px;
  flex-direction: row;
}

html[data-theme="atlas"] .settings-actions .btn-tool::before,
html[data-theme="atlas"] .settings-actions .btn-tool::after {
  display: none;
}

/* —— Rules —— */
html[data-theme="atlas"] .rules-panel {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  background: var(--atlas-cream);
  border: 1.5px solid var(--atlas-gold-soft);
  border-radius: 12px;
  box-shadow: none;
}

html[data-theme="atlas"] .rules-info {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  border-radius: 50%;
  background: var(--atlas-teal);
  color: #fff;
  font-family: var(--font-brand);
  font-size: 13px;
  font-weight: 700;
  font-style: italic;
  line-height: 22px;
  text-align: center;
}

html[data-theme="atlas"] .rules-panel p {
  flex: 1 1 auto;
  text-align: left;
  color: var(--atlas-muted);
  font-size: 12px;
  line-height: 1.4;
}

@media (max-width: 767px) {
  html[data-theme="atlas"] .rules-panel {
    padding: 8px 10px;
  }
  html[data-theme="atlas"] .rules-panel p {
    font-size: 11px;
  }
}

/* —— Overlays —— */
html[data-theme="atlas"] .overlay {
  background: rgba(36, 50, 55, 0.42);
}

html[data-theme="atlas"] .overlay-card {
  background: var(--atlas-cream);
  border: 1.5px solid var(--atlas-gold);
  color: var(--atlas-ink);
  border-radius: 16px;
  box-shadow: 0 14px 32px rgba(30, 50, 55, 0.2);
}

html[data-theme="atlas"] .overlay-card h2 {
  color: var(--atlas-teal);
  font-family: var(--font-brand);
  letter-spacing: 0.06em;
}

html[data-theme="atlas"] .overlay-card p {
  color: var(--atlas-muted);
}

html[data-theme="atlas"] .score-float.is-pos {
  color: #1a7a3c;
}

html[data-theme="atlas"] .score-float.is-combo {
  color: #8a6d12;
}

@media (max-width: 420px) {
  html[data-theme="atlas"] .chrome-timer-value {
    font-size: 17px;
  }
}

.splash-logo {
  display: none;
}

/* ═══════════════════════════════════════════
   Ember — dark forged-metal / lava theme
   Assets: images/ui/*
   ═══════════════════════════════════════════ */

html[data-theme="ember"] {
  --ink: #0c0c0e;
  --ink-mid: #1a1a1e;
  --ink-lit: #2a2a30;
  --paper: #1a1a1e;
  --paper-edge: #2c2c32;
  --line: #3a3a42;
  --line-strong: #c8c8d0;
  --accent: #ff8a1a;
  --accent-lit: #ffb040;
  --warn: #ff8a1a;
  --given: #e8e4dc;
  --entry: #ffb040;
  --conflict: #ff3b2f;
  --select: rgba(255, 138, 26, 0.18);
  --peer: rgba(255, 138, 26, 0.08);
  --shadow: rgba(0, 0, 0, 0.55);
  --ember-bg: #0c0c0e;
  --ember-panel: rgba(18, 18, 22, 0.88);
  --ember-panel-solid: #16161a;
  --ember-silver: #c8c8d0;
  --ember-muted: rgba(200, 200, 208, 0.62);
  --ember-orange: #ff8a1a;
  --ember-orange-hot: #ffb040;
  --font-display: "Source Sans 3", "Segoe UI", sans-serif;
  --font-brand: "Cinzel", "Palatino Linotype", "Book Antiqua", serif;
  --font-mono: "IBM Plex Mono", "Consolas", monospace;
  --pad-h: 0px;
  --tools-h: 0px;
  --streak-h: 28px;
  --chrome-top-h: 58px;
  --scene-gap: 10px;
  --content-inset-top: 4px;
  --content-inset-x: 6px;
  --content-inset-bottom: max(8px, env(safe-area-inset-bottom, 0px));
  /* Portrait column only — phone / iPad port / desktop share the same stack */
  --app-max-w: 768px;
  --board-max: 620px;
  --controls-rail-w: 0px;
  --board-width-cap: min(96vw, calc(var(--app-max-w) - (var(--content-inset-x) * 2)));
  --board-size: min(
    var(--board-width-cap),
    calc(100dvh - var(--fg-ad-h) - var(--content-inset-top) - var(--content-inset-bottom) - var(--chrome-top-h) - var(--streak-h) - var(--tools-h) - (var(--scene-gap) * 3) - 6px),
    var(--board-max)
  );
  /* Fantasy frame slice + map fit (source matches fantasy-frame.png) */
  --frame-src: url("images/ui/fantasy-ui-assets-assets/fantasy-frame.png");
  --frame-sw: 932;
  --frame-sh: 1399;
  --slice-top: 411;
  --slice-bottom: 376;
  --slice-left: 222;
  --slice-right: 240;
  --slice-center: 396;
  --slice-gutter-sample: 37;
  /* Optical open hole (alpha aperture) — board must stay inside this */
  --open-inset: 32;
  --open-top: 242;
  --open-bottom: 245;
  --map-bleed: 15;
  --board-margin: 14;
  --map-left-nudge: 0px;
  /* Explicit map well + board in source space (932×1399) */
  --map-src-x: 0;
  --map-src-y: 242;
  --map-src-w: 932;
  --map-src-h: 912;
  --board-src-x: 46;
  --board-src-y: 278;
  --board-src-size: 840;
  /* HUD regions — source space */
  --header-src-x: 4.5;
  --header-src-y: 52.1;
  --header-src-w: 924.3;
  --header-src-h: 161.5;
  --chrome-src-x: 79.6;
  --chrome-src-y: 57.7;
  --chrome-src-w: 762.7;
  --chrome-src-h: 77.5;
  --streak-src-x: 86.5;
  --streak-src-y: 171.5;
  --streak-src-w: 749.3;
  --streak-src-h: 22.3;
  --footer-src-x: 38.3;
  --footer-src-y: 1177.7;
  --footer-src-w: 862.2;
  --footer-src-h: 113.4;
  /* Tool buttons — source space (absolute within footer) */
  --undo-src-x: 196.3;
  --undo-src-y: 1235;
  --undo-src-w: 134.2;
  --undo-src-h: 74.5;
  --clear-src-x: 586.9;
  --clear-src-y: 1227.8;
  --clear-src-w: 132.4;
  --clear-src-h: 81.7;
  --mark-src-x: 398.4;
  --mark-src-y: 1237.9;
  --mark-src-w: 127.1;
  --mark-src-h: 71.5;
  /* Info panel — anchored to frame bottom (source px from stage bottom) */
  --info-src-bottom: 14;
  --info-src-w: 559;
  --info-src-h: 54.3;
  --info-ref-fw: 756;
  --frame-underlay: url("images/ui/fantasy-black-stone-assets/black-stone-bg.png");
  --ui-bg: url("images/ui/fantasy-black-stone-assets/black-stone-bg.png");
  /* Chrome + streak live inside the frame header graphic */
  --chrome-top-h: 0px;
  --streak-h: 0px;
  --ui-undo: url("images/ui/fantasy-ui-assets-assets/fantasy-button-undo.png");
  --ui-clear: url("images/ui/fantasy-ui-assets-assets/fantasy-button-clear.png");
  --ui-mark: url("images/ui/fantasy-ui-assets-assets/fantasy-button-mark.png");
  --ui-pause: url("images/ui/pause-button.png");
  --ui-streak-dim: url("images/ui/streak-dim.png");
  --ui-streak-lit: url("images/ui/streak-lit.png");
  --ui-info-panel: url("images/ui/fantasy-ui-assets-assets/fantasy-info-panel.png");
}

/* Keep portrait stack on wide / landscape viewports (no side rail) */
@media (min-width: 768px) and (orientation: landscape), (min-width: 1024px) {
  html[data-theme="ember"],
  html[data-theme="atlas"] {
    --app-max-w: 768px;
    --board-max: 620px;
    --controls-rail-w: 0px;
    --board-width-cap: min(96vw, calc(var(--app-max-w) - (var(--content-inset-x) * 2)));
    --board-size: min(
      var(--board-width-cap),
      calc(100dvh - var(--fg-ad-h) - var(--content-inset-top) - var(--content-inset-bottom) - var(--chrome-top-h) - var(--streak-h) - var(--tools-h) - (var(--scene-gap) * 3) - 6px),
      var(--board-max)
    );
  }

  html[data-theme="ember"] .scene,
  html[data-theme="atlas"] .scene {
    display: flex;
    flex-direction: column;
    grid-template-columns: none;
    grid-template-rows: none;
    grid-template-areas: none;
    column-gap: 0;
    align-items: stretch;
  }

  html[data-theme="ember"] .chrome-top,
  html[data-theme="ember"] .dragons-streak,
  html[data-theme="ember"] .stage,
  html[data-theme="ember"] .controls-rail,
  html[data-theme="atlas"] .chrome-band,
  html[data-theme="atlas"] .chrome-top,
  html[data-theme="atlas"] .dragons-streak,
  html[data-theme="atlas"] .board-slot,
  html[data-theme="atlas"] .tools,
  html[data-theme="atlas"] .controls-rail {
    grid-area: auto;
  }

  html[data-theme="ember"] .stage {
    align-self: stretch;
    justify-self: stretch;
    max-width: none;
  }

  html[data-theme="atlas"] .chrome-band,
  html[data-theme="atlas"] .dragons-streak,
  html[data-theme="atlas"] .board-slot,
  html[data-theme="atlas"] .tools,
  html[data-theme="atlas"] .rules-panel {
    align-self: center;
    margin-left: auto;
    margin-right: auto;
    width: min(var(--board-width-pct), var(--board-size));
    max-width: 100%;
  }

  html[data-theme="ember"] .controls-rail,
  html[data-theme="atlas"] .controls-rail {
    display: contents;
    width: auto;
  }
}

/* Map bleeds under frame rails; board stays inset inside the open aperture */
html[data-theme="ember"][data-terrain="biomes"] {
  --content-inset-x: 6px;
  --board-width-cap: min(96vw, calc(var(--app-max-w) - (var(--content-inset-x) * 2)));
}

html[data-theme="ember"][data-terrain="biomes"] .dragons-streak {
  width: var(--streak-w, 78%);
}

html[data-theme="ember"] body {
  color: var(--ember-silver);
  background: var(--ember-bg);
  font-family: var(--font-display);
}

html[data-theme="ember"] .atmosphere {
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.28) 0%, rgba(0, 0, 0, 0.45) 100%),
    var(--ui-bg) center / cover no-repeat;
}

html[data-theme="ember"] .atmosphere::after {
  opacity: 0.1;
  background:
    radial-gradient(ellipse at 50% 20%, rgba(255, 120, 30, 0.14), transparent 55%);
}

html[data-theme="ember"] .backdrop-card {
  /* Let the fixed stone atmosphere show around the ornate frame */
  display: block;
  background: transparent;
  border-radius: 0;
  box-shadow: none;
}

/* Splash */
html[data-theme="ember"] .splash-logo {
  display: block;
  align-self: center;
  width: 100%;
  max-width: 100%;
  height: auto;
  margin: 0 auto 6px;
  filter: drop-shadow(0 10px 24px rgba(0, 0, 0, 0.65)) drop-shadow(0 0 18px rgba(255, 120, 30, 0.25));
}

html[data-theme="ember"] .splash-title {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

html[data-theme="ember"] .splash-sub,
html[data-theme="ember"] .field-label,
html[data-theme="ember"] .back {
  color: var(--ember-muted);
}

html[data-theme="ember"] .field-select,
html[data-theme="ember"] .menu-trigger,
html[data-theme="ember"] .btn {
  background: var(--ember-panel-solid);
  border: 1.5px solid rgba(200, 200, 208, 0.28);
  color: var(--ember-silver);
  border-radius: 10px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), 0 4px 12px rgba(0, 0, 0, 0.35);
}

html[data-theme="ember"] .btn-primary {
  background: linear-gradient(180deg, #3a2412 0%, #1a120c 100%);
  border-color: rgba(255, 138, 26, 0.65);
  color: var(--ember-orange-hot);
  text-shadow: 0 0 10px rgba(255, 120, 30, 0.45);
  box-shadow:
    inset 0 0 0 1px rgba(255, 138, 26, 0.2),
    0 0 18px rgba(255, 100, 20, 0.22);
}

html[data-theme="ember"] .menu-list {
  background: #141418;
  border: 1.5px solid rgba(255, 138, 26, 0.35);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.45);
}

html[data-theme="ember"] .menu-option {
  color: var(--ember-silver);
}

html[data-theme="ember"] .menu-option:hover,
html[data-theme="ember"] .menu-option:focus-visible,
html[data-theme="ember"] .menu-option.is-selected {
  background: rgba(255, 138, 26, 0.14);
  color: var(--ember-orange-hot);
}

/* Chrome — sits in the frame's parchment header */
html[data-theme="ember"] .ornate-header-ui {
  position: absolute;
  z-index: 6;
  left: var(--header-x, 8%);
  top: var(--header-y, 4%);
  width: var(--header-w, 84%);
  height: var(--header-h, 18%);
  display: block;
  padding: 0;
  box-sizing: border-box;
  pointer-events: none;
}

html[data-theme="ember"] .ornate-header-ui .chrome-band,
html[data-theme="ember"] .ornate-header-ui .chrome-nav,
html[data-theme="ember"] .ornate-header-ui .chrome-top,
html[data-theme="ember"] .ornate-header-ui .dragons-streak,
html[data-theme="ember"] .ornate-header-ui .chrome-btn {
  pointer-events: auto;
}

/* Tool buttons — bottom parchment band inside the frame */
html[data-theme="ember"] .ornate-footer-ui {
  position: absolute;
  z-index: 6;
  left: var(--footer-x, 24%);
  top: var(--footer-y, 82%);
  width: var(--footer-w, 52%);
  height: var(--footer-h, 18%);
  display: block;
  box-sizing: border-box;
  padding: 0;
  pointer-events: none;
}

html[data-theme="ember"] .ornate-footer-ui .tools {
  pointer-events: none;
  width: 100%;
  height: 100%;
  max-height: none;
}

html[data-theme="ember"] .ornate-footer-ui .tools .btn-tool {
  pointer-events: auto;
}

html[data-theme="ember"] .chrome-band {
  position: absolute;
  left: var(--chrome-x, 0);
  top: var(--chrome-y, 0);
  width: var(--chrome-w, 100%);
  height: var(--chrome-h, auto);
  flex: none;
  min-height: 0;
}

html[data-theme="ember"] .chrome-nav {
  position: absolute;
  inset: 0;
  display: block;
  padding: 0;
  box-sizing: border-box;
  pointer-events: none;
  z-index: 2;
}

html[data-theme="ember"] .chrome-top {
  position: relative;
  left: auto;
  top: auto;
  width: 100%;
  height: 100%;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  column-gap: 6px;
  flex: none;
  min-height: 0;
  padding: 0 calc(var(--hotspot-size, 44px) + 4px);
  background: transparent;
  border: none;
  border-radius: 0;
  box-shadow: none;
  backdrop-filter: none;
  box-sizing: border-box;
}

html[data-theme="ember"] .dragons-chrome {
  grid-template-columns: 1fr auto 1fr;
}

html[data-theme="ember"] .chrome-top .stat {
  background: transparent;
  padding: 2px 4px;
}

html[data-theme="ember"] .chrome-top .chrome-stat-diff {
  justify-self: start;
  text-align: left;
}

html[data-theme="ember"] .chrome-top .chrome-stat-best {
  justify-self: end;
  text-align: right;
}

html[data-theme="ember"] .chrome-top .chrome-timer {
  justify-self: center;
}

html[data-theme="ember"] .back-btn .chrome-btn-label {
  display: none;
}

/* Invisible hotspots over frame-art back / pause medallions */
html[data-theme="ember"] .chrome-nav .back-btn,
html[data-theme="ember"] .chrome-nav #btnPause {
  position: absolute;
  top: var(--back-y, 0);
  left: var(--back-x, 0);
  right: auto;
  width: var(--hotspot-size, 44px);
  height: var(--hotspot-size, 44px);
  flex: none;
  padding: 0;
  margin: 0;
  border: none;
  border-radius: 50%;
  background: transparent;
  box-shadow: none;
  color: transparent;
  z-index: 2;
  pointer-events: auto;
}

html[data-theme="ember"] .chrome-nav #btnPause {
  top: var(--pause-y, 0);
  left: var(--pause-x, auto);
  right: auto;
}

html[data-theme="ember"] .chrome-nav .back-btn .chrome-btn-icon,
html[data-theme="ember"] .chrome-nav #btnPause .chrome-btn-icon {
  opacity: 0;
  font-size: 1px;
  color: transparent;
  text-shadow: none;
}

html[data-theme="ember"] .chrome-nav .back-btn:focus-visible,
html[data-theme="ember"] .chrome-nav #btnPause:focus-visible {
  outline: 2px solid rgba(73, 55, 33, 0.55);
  outline-offset: 2px;
}

html[data-theme="ember"] .stat-label {
  font-family: var(--font-brand);
  font-size: clamp(8px, 2.2vw, 10px);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

html[data-theme="ember"] .dragons-streak {
  position: absolute;
  left: var(--streak-x, 10%);
  top: var(--streak-y, 70%);
  width: var(--streak-w, 80%);
  height: var(--streak-h, auto);
  z-index: 1;
  max-width: none;
  margin: 0;
  align-self: auto;
  flex: none;
  gap: 6px;
}

html[data-theme="ember"] .chrome-timer {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: none;
  border: none;
  border-radius: 0;
}

html[data-theme="ember"] .chrome-timer-icon {
  display: flex;
  color: #493721;
}

html[data-theme="ember"] .stat-label {
  color: #493721;
  text-shadow: none;
}

html[data-theme="ember"] .stat-value,
html[data-theme="ember"] .chrome-score-value,
html[data-theme="ember"] .dragons-streak-mult,
html[data-theme="ember"] .dragons-streak-score {
  color: #493721;
  text-shadow: none;
}

html[data-theme="ember"] .stat-value {
  font-family: var(--font-brand);
  font-size: clamp(13px, 3.4vw, 17px);
  font-weight: 700;
}

html[data-theme="ember"] .dragons-streak-mult,
html[data-theme="ember"] .dragons-streak-score,
html[data-theme="ember"] .chrome-score-value {
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: clamp(12px, 2.6vw, 14px);
}

html[data-theme="ember"] .chrome-timer-value {
  font-family: var(--font-brand);
  font-size: clamp(16px, 4.6vw, 24px);
  color: #493721;
  text-shadow: none;
}

/* Streak */
html[data-theme="ember"] .dragons-streak-pip {
  height: 12px;
  border: none;
  border-radius: 999px;
  background: var(--ui-streak-dim) center / 100% 100% no-repeat;
  box-shadow: none;
}

html[data-theme="ember"] .dragons-streak-pip.is-on {
  background: var(--ui-streak-lit) center / 100% 100% no-repeat;
  filter: drop-shadow(0 0 5px rgba(255, 120, 20, 0.7));
}

html[data-theme="ember"] .dragons-streak-pip.is-partial {
  background: var(--ui-streak-lit) center / 100% 100% no-repeat;
  opacity: 0.55;
  filter: drop-shadow(0 0 3px rgba(255, 120, 20, 0.4));
}

html[data-theme="ember"] .dragons-streak.is-reset .dragons-streak-pip.is-on,
html[data-theme="ember"] .dragons-streak.is-reset .dragons-streak-pip.is-partial {
  filter: drop-shadow(0 0 6px rgba(255, 60, 40, 0.75));
}

/* Ornate fantasy frame — map under open aperture, board inset, rails mask bleed */
html[data-theme="ember"] .stage {
  flex: 1 1 auto;
  min-height: 0;
  align-items: center;
  overflow: hidden;
}

html[data-theme="ember"] .ornate-stage {
  position: relative;
  width: var(--fw, min(var(--board-width-pct), var(--board-size)));
  height: var(--fh, auto);
  flex: 0 0 auto;
  overflow: hidden;
  background: transparent;
}

/* Stack: solid well → map/board → frame → header UI (stone lives on .atmosphere only) */
html[data-theme="ember"] .ornate-underlay {
  position: absolute;
  inset: 0;
  z-index: 0;
  /* Don't put the stone texture inside the clipped stage — it gets overflow-hidden */
  background: transparent;
  pointer-events: none;
}

html[data-theme="ember"] .ornate-map-well {
  position: absolute;
  z-index: 2;
  left: var(--map-x, 0);
  top: var(--map-y, 0);
  width: var(--map-w, 100%);
  height: var(--map-h, 100%);
  overflow: hidden;
  background: transparent;
  pointer-events: none;
}

html[data-theme="ember"] .ornate-frame {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: grid;
  grid-template-columns: var(--left-px) 1fr var(--center-px) 1fr var(--right-px);
  grid-template-rows: var(--top-px) 1fr var(--bottom-px);
  pointer-events: none;
  overflow: hidden;
}

html[data-theme="ember"] .ornate-frame .ornate-patch {
  position: relative;
  overflow: hidden;
  min-width: 0;
  min-height: 0;
}

html[data-theme="ember"] .ornate-frame .ornate-patch img {
  position: absolute;
  max-width: none;
  pointer-events: none;
  user-select: none;
}

html[data-theme="ember"] .ornate-frame .ornate-map-cell {
  grid-column: 2 / 5;
  grid-row: 2;
  pointer-events: none;
}

html[data-theme="ember"] .board-slot {
  position: absolute;
  z-index: 3;
  left: var(--board-x, 0);
  top: var(--board-y, 0);
  width: var(--board-size);
  height: var(--board-size);
  aspect-ratio: auto;
  border: none;
  border-radius: 0;
  background: #1a1a1e;
  padding: 0;
  box-sizing: border-box;
  box-shadow: none;
  overflow: visible;
}

/* Ember place feedback: grid-aligned charcoal lines + orange burst from piece */
html[data-theme="ember"] .ember-axis-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 4;
  pointer-events: none;
  overflow: visible;
  opacity: 0;
}

html[data-theme="ember"] .ember-axis-overlay.is-lit {
  opacity: 1;
}

html[data-theme="ember"] .ember-axis-overlay .ember-axis-charcoal line {
  fill: none;
  stroke: #2a1c14;
  stroke-width: 2;
  stroke-linecap: square;
}

html[data-theme="ember"] .ember-axis-overlay .ember-axis-ember line {
  fill: none;
  stroke: #ff8a1a;
  stroke-width: 2.75;
  stroke-linecap: square;
  filter: drop-shadow(0 0 5px rgba(255, 176, 64, 0.85));
}

html[data-theme="ember"] .ember-axis-overlay .ember-axis-ember {
  opacity: 0;
}

html[data-theme="ember"] .ember-axis-overlay.is-drawing .ember-axis-ember {
  opacity: 1;
  animation: ember-axis-orange-burst var(--axis-draw-ms, 1.6s) cubic-bezier(0.12, 0.7, 0.2, 1) both;
}

html[data-theme="ember"] .ember-axis-overlay.is-drawing .ember-axis-charcoal {
  animation: ember-axis-charcoal-settle var(--axis-draw-ms, 1.6s) cubic-bezier(0.12, 0.7, 0.2, 1) both;
}

html[data-theme="ember"] .dragons-cell.place-ripple {
  /* Shadow lift only on the cell — tint lives on ::after */
  animation-name: place-tile-shadow-ripple;
}

html[data-theme="ember"] .dragons-cell.place-ripple::after {
  background: rgba(255, 138, 26, 0.34);
}

html[data-theme="ember"] .dragons-cell.place-ripple.place-ripple-mark::after {
  background: rgba(255, 255, 255, 0.42);
}

.dragons-cell.place-ripple.place-ripple-mark::after {
  background: rgba(255, 255, 255, 0.4);
}

@keyframes place-tile-shadow-ripple {
  0% {
    box-shadow: 0 1px 2px rgba(10, 6, 2, 0.55);
  }
  32% {
    box-shadow: 0 16px 28px rgba(10, 6, 2, 0.28);
  }
  100% {
    box-shadow: 0 1px 2px rgba(10, 6, 2, 0.55);
  }
}

html[data-theme="ember"] .dragons-cell.hl-row,
html[data-theme="ember"] .dragons-cell.hl-col {
  background: rgba(255, 138, 26, 0.18);
}

html[data-theme="ember"] .dragons-cell.hl-row.hl-col {
  background: rgba(255, 138, 26, 0.26);
}

/* Orange ring travels outward from the piece; charcoal stays behind */
@keyframes ember-axis-orange-burst {
  0% {
    -webkit-mask-image: radial-gradient(
      circle at var(--axis-cx, 50%) var(--axis-cy, 50%),
      #000 0%,
      #000 3%,
      transparent 8%
    );
    mask-image: radial-gradient(
      circle at var(--axis-cx, 50%) var(--axis-cy, 50%),
      #000 0%,
      #000 3%,
      transparent 8%
    );
    opacity: 1;
  }
  35% {
    -webkit-mask-image: radial-gradient(
      circle at var(--axis-cx, 50%) var(--axis-cy, 50%),
      transparent 18%,
      #000 26%,
      #000 38%,
      transparent 48%
    );
    mask-image: radial-gradient(
      circle at var(--axis-cx, 50%) var(--axis-cy, 50%),
      transparent 18%,
      #000 26%,
      #000 38%,
      transparent 48%
    );
    opacity: 1;
  }
  70% {
    -webkit-mask-image: radial-gradient(
      circle at var(--axis-cx, 50%) var(--axis-cy, 50%),
      transparent 48%,
      #000 58%,
      #000 72%,
      transparent 84%
    );
    mask-image: radial-gradient(
      circle at var(--axis-cx, 50%) var(--axis-cy, 50%),
      transparent 48%,
      #000 58%,
      #000 72%,
      transparent 84%
    );
    opacity: 0.95;
  }
  100% {
    -webkit-mask-image: radial-gradient(
      circle at var(--axis-cx, 50%) var(--axis-cy, 50%),
      transparent 82%,
      #000 92%,
      #000 100%,
      transparent 112%
    );
    mask-image: radial-gradient(
      circle at var(--axis-cx, 50%) var(--axis-cy, 50%),
      transparent 82%,
      #000 92%,
      #000 100%,
      transparent 112%
    );
    opacity: 0;
  }
}

@keyframes ember-axis-charcoal-settle {
  0% {
    clip-path: circle(0% at var(--axis-cx, 50%) var(--axis-cy, 50%));
    opacity: 0.2;
  }
  25% {
    opacity: 1;
  }
  100% {
    clip-path: circle(145% at var(--axis-cx, 50%) var(--axis-cy, 50%));
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  html[data-theme="ember"] .ember-axis-overlay.is-drawing .ember-axis-ember,
  html[data-theme="ember"] .ember-axis-overlay.is-drawing .ember-axis-charcoal {
    animation-duration: 0.01ms !important;
  }
}

html[data-theme="ember"] .board-slot::after {
  display: none;
}

html[data-theme="ember"] .board {
  background: #1a1a1e;
  border: none;
  border-radius: 0;
  box-shadow: none;
  color: var(--ember-silver);
  overflow: hidden;
}

html[data-theme="ember"][data-terrain="biomes"] .board-slot {
  background: transparent;
}

html[data-theme="ember"][data-terrain="biomes"] .dragons-board {
  background: transparent;
  box-shadow: none;
  border-radius: 0;
}

html[data-theme="ember"] .biome-canvas {
  border-radius: 0;
}

html[data-theme="ember"][data-terrain="biomes"] .biome-canvas {
  z-index: 0;
  overflow: hidden;
  border-radius: 0;
}

/* Debug: board-sized map + grid above frame — see mask vs opening (MAP_MASK_DEBUG in game.js) */
html[data-map-mask-debug][data-theme="ember"] .ornate-map-well {
  z-index: 10;
  opacity: 0.5;
  outline: 2px dashed rgba(255, 48, 32, 0.95);
  outline-offset: 0;
}

html[data-map-mask-debug][data-theme="ember"] .board-slot {
  z-index: 11;
  opacity: 0.5;
}

html[data-map-mask-debug][data-theme="ember"] .ornate-frame {
  z-index: 5;
}

html[data-map-mask-debug][data-theme="ember"] .ornate-header-ui,
html[data-map-mask-debug][data-theme="ember"] .ornate-footer-ui {
  z-index: 6;
  outline: 1px dashed rgba(0, 200, 255, 0.7);
}

html[data-map-mask-debug][data-theme="ember"] .chrome-nav .back-btn,
html[data-map-mask-debug][data-theme="ember"] .chrome-nav #btnPause {
  outline: 2px solid rgba(255, 60, 60, 0.85);
  background: rgba(255, 60, 60, 0.18);
}

/* Atlas / non-ember: unwrap ornate shell so chrome/streak/board stack normally */
html:not([data-theme="ember"]) .ornate-frame,
html:not([data-theme="ember"]) .ornate-underlay {
  display: none;
}

html:not([data-theme="ember"]) .ornate-map-well,
html:not([data-theme="ember"]) .ornate-header-ui,
html:not([data-theme="ember"]) .ornate-footer-ui,
html:not([data-theme="ember"]) .stage,
html:not([data-theme="ember"]) .ornate-stage {
  display: contents;
}

.portrait-lock {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 24px;
  background: #0c0c0e;
  color: #e8e0d0;
  text-align: center;
  font-family: "Cinzel", "Palatino Linotype", serif;
}

.portrait-lock p {
  margin: 0;
  font-size: 1.25rem;
  letter-spacing: 0.06em;
}

.portrait-lock-sub {
  font-family: "Source Sans 3", "Segoe UI", sans-serif;
  font-size: 0.95rem !important;
  color: rgba(200, 200, 208, 0.65);
  letter-spacing: 0.02em !important;
}

.portrait-lock-icon {
  width: 42px;
  height: 64px;
  border: 3px solid #c4a06a;
  border-radius: 8px;
  margin-bottom: 8px;
  animation: portrait-nudge 1.8s ease-in-out infinite;
}

@keyframes portrait-nudge {
  0%, 20% { transform: rotate(90deg); }
  50%, 80% { transform: rotate(0deg); }
  100% { transform: rotate(0deg); }
}

/* Short landscape viewports (phone / tablet sideways) — ask for portrait */
@media (orientation: landscape) and (max-height: 700px) {
  .portrait-lock:not([hidden]) {
    display: flex;
  }
}

html[data-theme="ember"] .dragons-cell {
  border-right-color: rgba(255, 255, 255, 0.06);
  border-bottom-color: rgba(255, 255, 255, 0.06);
}

html[data-theme="ember"] .dragons-cell.selected {
  background: transparent;
  box-shadow: none;
}

html[data-theme="ember"] .dragons-cell.selected:not(.has-dragon) {
  background: transparent;
  box-shadow: none;
}

html[data-theme="ember"] .dragons-cell.selected.has-dragon {
  background: transparent;
  box-shadow: none;
}

html[data-theme="ember"] .dragons-cell.conflict {
  background: transparent;
}

html[data-theme="ember"] .dragons-cell .mark-flag {
  width: 58%;
  height: 88%;
  top: 48%;
  filter: drop-shadow(0 3px 3px rgba(0, 0, 0, 0.45));
}

html[data-theme="ember"] .dragons-cell .glyph-crown {
  background: transparent;
  box-shadow: none;
}

/* Tools — full art buttons positioned from source boxes */
html[data-theme="ember"] .ornate-footer-ui .tools {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
  padding: 0;
  background: transparent;
  border: none;
  box-shadow: none;
}

html[data-theme="ember"] .ornate-footer-ui .tools .btn-tool {
  position: absolute;
  margin: 0;
  padding: 0;
  border: none;
  border-radius: 0;
  max-width: none;
  background-color: transparent;
  background-position: center center;
  background-repeat: no-repeat;
  background-size: 100% 100%;
  box-shadow: none;
  color: transparent;
  overflow: visible;
  aspect-ratio: auto;
}

html[data-theme="ember"] .ornate-footer-ui .tools .btn-tool::before,
html[data-theme="ember"] .ornate-footer-ui .tools .btn-tool::after {
  display: none;
}

html[data-theme="ember"] #btnUndo.btn-tool {
  left: var(--undo-x, 8%);
  top: var(--undo-y, 15%);
  width: var(--undo-w, 30%);
  height: var(--undo-h, 70%);
  background-image: var(--ui-undo);
}

html[data-theme="ember"] #btnClear.btn-tool {
  left: var(--clear-x, 62%);
  top: var(--clear-y, 10%);
  width: var(--clear-w, 30%);
  height: var(--clear-h, 75%);
  background-image: var(--ui-clear);
}

html[data-theme="ember"] #btnMark.btn-tool {
  left: var(--mark-x, 35%);
  top: var(--mark-y, 15%);
  width: var(--mark-w, 30%);
  height: var(--mark-h, 70%);
  background-image: var(--ui-mark);
  visibility: hidden;
  pointer-events: none;
}

html[data-theme="ember"] .ornate-footer-ui .tools .btn-tool .tool-icon,
html[data-theme="ember"] .ornate-footer-ui .tools .btn-tool .tool-label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

html[data-theme="ember"] .ornate-footer-ui .tools .btn-tool[aria-pressed="true"] {
  filter: drop-shadow(0 0 10px rgba(255, 140, 30, 0.65)) brightness(1.08);
}

html[data-theme="ember"] .ornate-footer-ui .tools .btn-tool:disabled {
  opacity: 0.38;
  filter: grayscale(0.35);
}

html[data-theme="ember"] .tool-badge {
  top: calc(6% - 3rem);
  right: calc(10% - 7rem);
  padding: 2px 6px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.72);
  border: 1px solid rgba(255, 138, 26, 0.55);
  color: var(--ember-orange-hot);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.04em;
  opacity: 1;
  z-index: 2;
}

html[data-theme="ember"] .ornate-footer-ui .tools .btn-tool[aria-pressed="true"] .tool-badge {
  background: rgba(255, 120, 20, 0.9);
  color: #1a0e08;
  border-color: var(--ember-orange-hot);
}

html[data-theme="ember"] .settings-actions .btn-tool {
  width: 100%;
  aspect-ratio: auto;
  min-height: 48px;
  border-radius: 10px;
  flex-direction: row;
  background-image: none !important;
  background: var(--ember-panel-solid);
  border: 1.5px solid rgba(255, 138, 26, 0.4);
  color: var(--ember-orange-hot);
}

html[data-theme="ember"] .settings-actions .btn-tool .tool-icon,
html[data-theme="ember"] .settings-actions .btn-tool .tool-label {
  position: static;
  width: auto;
  height: auto;
  overflow: visible;
  clip: auto;
  color: inherit;
}

/* Rules — absolute in .scene-slot, pinned with bottom (not top) so resize keeps it in the footer */
html[data-theme="ember"] .scene-slot {
  position: relative;
}

html[data-theme="ember"] .rules-panel {
  position: absolute;
  left: var(--info-x, 0);
  right: auto;
  top: auto;
  bottom: var(--info-bottom, 12px);
  z-index: 8;
  display: block;
  width: var(--info-w, min(100%, var(--fw, 100%)));
  height: var(--info-h, auto);
  max-width: none;
  margin: 0;
  aspect-ratio: auto;
  padding: 0;
  background: var(--ui-info-panel) center / 100% 100% no-repeat;
  border: none;
  border-radius: 0;
  box-shadow: none;
  align-self: auto;
  flex: none;
  pointer-events: none;
}

html[data-theme="ember"] .rules-info {
  display: none;
}

html[data-theme="ember"] .rules-panel p {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 767px) {
  html[data-theme="ember"] .rules-panel {
    width: var(--info-w, min(96%, var(--fw, 100%)));
  }
}

/* Overlays */
html[data-theme="ember"] .overlay {
  background: rgba(0, 0, 0, 0.62);
}

html[data-theme="ember"] .overlay-card {
  background: linear-gradient(180deg, #1a1a1e 0%, #101014 100%);
  border: 1.5px solid rgba(255, 138, 26, 0.45);
  color: var(--ember-silver);
  border-radius: 16px;
  box-shadow:
    0 0 28px rgba(255, 100, 20, 0.18),
    0 16px 36px rgba(0, 0, 0, 0.5);
}

html[data-theme="ember"] .overlay-card h2 {
  color: var(--ember-orange-hot);
  font-family: var(--font-brand);
  letter-spacing: 0.06em;
  text-shadow: 0 0 12px rgba(255, 120, 30, 0.4);
}

html[data-theme="ember"] .overlay-card p {
  color: var(--ember-muted);
}

html[data-theme="ember"] .score-float.is-pos {
  color: #6dff9a;
}

html[data-theme="ember"] .score-float.is-combo {
  color: var(--ember-orange-hot);
}

@media (max-width: 420px) {
  html[data-theme="ember"] {
    --tools-h: 0px;
  }

  html[data-theme="ember"] .chrome-timer-value {
    font-size: 16px;
  }
}