/* ═══════════════ flowcode themes ═══════════════ */
:root {
  --bg: #0b0e1a;
  --bg2: #10142a;
  --panel: #141830;
  --line: #232a4d;
  --dim: #5c668f;
  --text: #d8ddf5;
  --accent: #ffb86b;      /* amber: typed / active */
  --accent-ink: #1a1206;
  --danger: #ff5c7a;
  --ok: #7bffb2;
  --info: #7fd6ff;
  --gold: #ffd75e;
  --fog: 11, 14, 26;      /* rgb of bg for fog fade */
  --grid: rgba(96, 110, 180, .22);
  --grid-strong: rgba(140, 155, 235, .35);

  /* One corner, four steps off it, the way shadcn derives its radii. This
     panel used to name ten different values between 5px and 16px and no two
     of them meant anything different. Colour stays flowcode's own: only the
     geometry is shared with the arcade. */
  --radius: 10px;
  --r-sm: calc(var(--radius) - 4px);
  --r-md: calc(var(--radius) - 2px);
  --r-lg: var(--radius);
  --r-xl: calc(var(--radius) + 4px);
  --r-2xl: calc(var(--radius) + 6px);

  --sh-xs: 0 1px 2px 0 rgba(0, 0, 0, .3);
  --sh-sm: 0 1px 3px 0 rgba(0, 0, 0, .36), 0 1px 2px -1px rgba(0, 0, 0, .36);
}
[data-theme="serika"] {
  --bg: #323437; --bg2: #2c2e31; --panel: #2c2e31; --line: #46484c;
  --dim: #646669; --text: #d1d0c5; --accent: #e2b714; --accent-ink: #1f1a02;
  --danger: #ca4754; --ok: #98c379; --info: #7fb8d6; --gold: #e2b714;
  --fog: 50, 52, 55; --grid: rgba(120,120,120,.18); --grid-strong: rgba(180,180,160,.3);
}
[data-theme="matrix"] {
  --bg: #020a04; --bg2: #041207; --panel: #06180b; --line: #0f3a1c;
  --dim: #2e7d46; --text: #b8ffcf; --accent: #37ff8b; --accent-ink: #01130a;
  --danger: #ff4d4d; --ok: #37ff8b; --info: #58d6ff; --gold: #d9ff37;
  --fog: 2, 10, 4; --grid: rgba(30,180,90,.2); --grid-strong: rgba(55,255,139,.3);
}
[data-theme="glacier"] {
  --bg: #eef3f8; --bg2: #e2eaf3; --panel: #ffffff; --line: #c6d4e5;
  --dim: #8296ad; --text: #1e2c3d; --accent: #0d67c4; --accent-ink: #f2f8ff;
  --danger: #d4386c; --ok: #1d9e63; --info: #0d9bc4; --gold: #c48a0d;
  --fog: 238, 243, 248; --grid: rgba(60,100,150,.16); --grid-strong: rgba(40,80,140,.28);
}
[data-theme="blood"] {
  --bg: #120507; --bg2: #1a080b; --panel: #200a0e; --line: #46161e;
  --dim: #8a4a55; --text: #f5d8dc; --accent: #ff4d6a; --accent-ink: #1c0308;
  --danger: #ffb14d; --ok: #7bffb2; --info: #d67fff; --gold: #ffd75e;
  --fog: 18, 5, 7; --grid: rgba(200,60,90,.16); --grid-strong: rgba(255,77,106,.26);
}

/* ═══════════════ base ═══════════════ */
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: "JetBrains Mono", "Cascadia Code", Consolas, monospace;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: background .4s;
}
kbd {
  font-family: inherit; font-size: .85em;
  border: 1px solid var(--line); border-bottom-width: 2px;
  border-radius: var(--r-sm); padding: 1px 7px; color: var(--dim);
}
button { font-family: inherit; cursor: pointer; }
button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ═══════════════ top bar ═══════════════ */
#topbar {
  display: flex; align-items: center; gap: 18px;
  padding: 14px 22px 10px;
  z-index: 30;
  transition: opacity .35s, transform .35s;
}
body.playing #topbar { opacity: 0; transform: translateY(-8px); pointer-events: none; }

.logo { display: flex; align-items: center; gap: 10px; user-select: none; flex-shrink: 0; }
.logo-cube {
  width: 22px; height: 22px; border-radius: var(--r-sm);
  background: var(--accent);
  box-shadow: 4px 4px 0 0 var(--line);
  transform: rotate(-8deg);
}
.logo-text {
  font-family: "Chakra Petch", "JetBrains Mono", monospace;
  font-size: 22px; font-weight: 500; letter-spacing: .5px; color: var(--dim);
}
.logo-text b { color: var(--text); font-weight: 700; }

#config {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  box-shadow: var(--sh-sm);
  padding: 6px 12px;
  margin-inline: auto;
}
/* Each run of pills is one segmented control sitting in its own sunk track,
   which is what the hairline separators used to say and says it better: the
   track ends where the choice ends. The wpm row carries a slider rather than
   pills, so it stays a plain row. */
.cfg-group { display: flex; align-items: center; gap: 2px; }
.cfg-group:not(.wpm-group) {
  background: var(--bg2);
  border-radius: var(--r-md);
  padding: 2px;
}
.cfg-sep { display: none; }
.pill {
  background: none; border: none; color: var(--dim);
  font-size: 12.5px; padding: 5px 9px; border-radius: var(--r-sm);
  transition: color .15s, background .15s, box-shadow .15s;
  white-space: nowrap;
}
.pill:hover { color: var(--text); }
.pill.on { color: var(--accent-ink); background: var(--accent); font-weight: 700; box-shadow: var(--sh-xs); }
#cfg-time.hidden, #cfg-words.hidden { display: none; }

.wpm-group { gap: 8px; }
.wpm-label { font-size: 12.5px; color: var(--dim); }
.wpm-value {
  font-family: "Chakra Petch", monospace; font-weight: 700;
  font-size: 15px; color: var(--accent); min-width: 34px; text-align: right;
}
.wpm-unit { font-size: 11px; color: var(--dim); }
#wpm-slider {
  -webkit-appearance: none; appearance: none;
  width: 120px; height: 4px; border-radius: 2px;
  background: var(--line); accent-color: var(--accent);
}
#wpm-slider::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 14px; height: 14px; border-radius: 4px;
  background: var(--accent); cursor: pointer;
}

.top-icons { display: flex; gap: 6px; flex-shrink: 0; }
.icon-btn {
  width: 34px; height: 34px; border-radius: var(--r-lg);
  background: var(--panel); border: 1px solid var(--line);
  box-shadow: var(--sh-xs);
  color: var(--dim); font-size: 16px;
  transition: color .15s, border-color .15s;
}
.icon-btn:hover { color: var(--accent); border-color: var(--accent); }
.icon-btn.off { opacity: .4; }
a.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  text-decoration: none; font-size: 18px;
}

/* ═══════════════ HUD ═══════════════ */
#hud {
  position: fixed; top: 14px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 26px; align-items: flex-end;
  background: color-mix(in srgb, var(--panel) 82%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--r-xl); padding: 10px 26px;
  z-index: 40; backdrop-filter: blur(6px);
  transition: opacity .3s;
}
#hud.hidden { opacity: 0; pointer-events: none; }
.hud-item { display: flex; flex-direction: column; align-items: center; min-width: 52px; }
.hud-item span {
  font-family: "Chakra Petch", monospace; font-weight: 700;
  font-size: 22px; line-height: 1.1; color: var(--text);
  font-variant-numeric: tabular-nums;
}
.hud-item label { font-size: 10px; color: var(--dim); letter-spacing: 1px; }
.hud-main span { color: var(--accent); font-size: 28px; }
.hud-combo span { color: var(--info); }
.hud-combo.hot span { color: var(--gold); text-shadow: 0 0 14px var(--gold); }
.hud-lives span { color: var(--danger); font-size: 18px; letter-spacing: 2px; }
.hud-flow span { color: var(--ok); }
#hud-lives-wrap.hidden, #hud-flow-wrap.hidden { display: none; }

#capslock-warn {
  position: fixed; top: 74px; left: 50%; transform: translateX(-50%);
  background: var(--danger); color: var(--bg);
  font-size: 12px; font-weight: 700;
  padding: 4px 14px; border-radius: var(--r-md); z-index: 45;
}
#capslock-warn.hidden { display: none; }

#effect-banner {
  position: fixed; top: 84px; left: 50%; transform: translateX(-50%);
  font-family: "Chakra Petch", monospace; font-weight: 700; font-size: 18px;
  color: var(--gold); text-shadow: 0 0 18px var(--gold);
  z-index: 45; pointer-events: none;
  animation: banner-pop .4s ease;
}
#effect-banner.hidden { display: none; }
@keyframes banner-pop {
  from { transform: translateX(-50%) scale(.6); opacity: 0; }
  to   { transform: translateX(-50%) scale(1); opacity: 1; }
}

/* ═══════════════ 3D scene ═══════════════ */
#scene-wrap {
  flex: 1; position: relative; overflow: hidden;
  perspective: 860px;
  perspective-origin: 50% 38%;
}
#scene-wrap.shake { animation: shake .28s; }
@keyframes shake {
  0%, 100% { transform: translate(0,0); }
  25% { transform: translate(-7px, 3px); }
  50% { transform: translate(6px, -4px); }
  75% { transform: translate(-4px, -2px); }
}
@media (prefers-reduced-motion: reduce) {
  #scene-wrap.shake { animation: none; }
}

#scene {
  position: absolute; inset: 0;
  transform-style: preserve-3d;
}

/* runway floor */
#floor {
  position: absolute; left: 50%; top: 46%;
  width: 2400px; height: 5200px;
  transform: translateX(-50%) rotateX(90deg) translateZ(-130px) translateY(-2600px);
  transform-origin: 50% 100%;
  background:
    repeating-linear-gradient(to right, var(--grid) 0 2px, transparent 2px 190px),
    repeating-linear-gradient(to top, var(--grid-strong) 0 2px, transparent 2px 190px);
  background-position: 0 0;
  -webkit-mask-image: linear-gradient(to top, rgba(0,0,0,.85) 0%, rgba(0,0,0,.5) 40%, transparent 78%);
  mask-image: linear-gradient(to top, rgba(0,0,0,.85) 0%, rgba(0,0,0,.5) 40%, transparent 78%);
}

/* escape horizon: the red line cubes must not cross */
#horizon-line {
  position: absolute; left: 50%; top: 46%;
  width: 1700px; height: 3px;
  transform: translate(-50%, -50%) translateZ(-2300px) translateY(30px);
  background: var(--danger);
  box-shadow: 0 0 26px 6px color-mix(in srgb, var(--danger) 70%, transparent),
              0 0 90px 30px color-mix(in srgb, var(--danger) 25%, transparent);
  opacity: .8;
}
#horizon-line.alarm { animation: horizon-alarm .5s infinite alternate; }
@keyframes horizon-alarm { from { opacity: .5; } to { opacity: 1; } }

#cubes, #particles {
  position: absolute; inset: 0;
  transform-style: preserve-3d;
  pointer-events: none;
}

/* ── cube ── */
.cube {
  position: absolute; left: 50%; top: 46%;
  transform-style: preserve-3d;
  will-change: transform, opacity;
}
.box { position: relative; transform-style: preserve-3d; }
.face {
  position: absolute;
  background: color-mix(in srgb, var(--panel) 92%, var(--accent) 0%);
  border: 2px solid var(--line);
  border-radius: var(--r-lg);
}
.face.front {
  display: flex; align-items: center; justify-content: center;
  font-size: 27px; font-weight: 500; letter-spacing: 1px;
  padding: 0 16px; white-space: nowrap;
}
.face.side { border-radius: var(--r-sm); background: color-mix(in srgb, var(--panel) 70%, var(--bg) 30%); }

.cube .ch { color: var(--dim); transition: color .06s; }
.cube .ch.done { color: var(--accent); }
.cube .ch.next { text-decoration: underline 2.5px var(--accent); text-underline-offset: 5px; }

.cube.locked .face { border-color: var(--accent); box-shadow: 0 0 22px color-mix(in srgb, var(--accent) 35%, transparent); }
.cube.locked .ch { color: var(--text); }
.cube.locked .ch.done { color: var(--accent); }

.cube.danger .face { border-color: var(--danger); animation: cube-danger .4s infinite alternate; }
@keyframes cube-danger {
  from { box-shadow: 0 0 10px color-mix(in srgb, var(--danger) 30%, transparent); }
  to   { box-shadow: 0 0 30px color-mix(in srgb, var(--danger) 70%, transparent); }
}
.cube.err .face { border-color: var(--danger); background: color-mix(in srgb, var(--danger) 18%, var(--panel)); }

.cube.power .face { border-color: var(--gold); box-shadow: 0 0 24px color-mix(in srgb, var(--gold) 45%, transparent); }
.cube.power .ch { color: var(--gold); }
.cube.power .face.front::before {
  content: attr(data-icon);
  margin-right: 8px; font-size: 20px;
}

.cube.dying { transition: transform .18s ease-in, opacity .18s; opacity: 0 !important; }

/* particles */
.particle {
  position: absolute; left: 50%; top: 46%;
  width: 9px; height: 9px; border-radius: 2px;
  background: var(--accent);
}

/* ═══════════════ overlays ═══════════════ */
.overlay-center {
  position: absolute; inset: 0; z-index: 20;
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  transition: opacity .3s;
}
.overlay-center.hidden { opacity: 0; pointer-events: none; }

.hint-title {
  font-family: "Chakra Petch", monospace; font-weight: 700;
  font-size: 30px; margin-bottom: 14px;
}
.hint-title em { color: var(--accent); font-style: normal; }
.hint-sub { color: var(--dim); font-size: 14px; line-height: 1.75; margin-bottom: 22px; }
.hint-keys { display: flex; gap: 22px; justify-content: center; font-size: 12.5px; color: var(--dim); }

.pause-box {
  background: color-mix(in srgb, var(--panel) 90%, transparent);
  border: 1px solid var(--line); border-radius: var(--r-2xl);
  padding: 34px 48px; backdrop-filter: blur(8px);
}
.pause-title { font-family: "Chakra Petch", monospace; font-size: 26px; font-weight: 700; margin-bottom: 12px; }
.pause-hint { color: var(--dim); font-size: 13px; }

/* typed buffer */
#buffer-wrap {
  position: absolute; bottom: 7%; left: 50%; transform: translateX(-50%);
  min-height: 44px; display: flex; align-items: center;
  font-size: 30px; font-weight: 500; letter-spacing: 2px;
  color: var(--accent); z-index: 15;
}
#caret {
  width: 3px; height: 32px; margin-left: 3px;
  background: var(--accent); border-radius: 2px;
  animation: caret-blink 1.1s step-end infinite;
}
@keyframes caret-blink { 0%, 60% { opacity: 1; } 61%, 100% { opacity: 0; } }

/* ═══════════════ results ═══════════════ */
#results {
  position: fixed; inset: 0; z-index: 60;
  background: color-mix(in srgb, var(--bg) 94%, transparent);
  backdrop-filter: blur(10px);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 26px; padding: 30px;
  overflow-y: auto;
}
#results.hidden { display: none; }

.res-head { display: flex; gap: 44px; align-items: center; flex-wrap: wrap; justify-content: center; }
.res-big { display: flex; flex-direction: column; gap: 8px; position: relative; }
.res-stat label { color: var(--dim); font-size: 14px; }
.res-stat span {
  display: block;
  font-family: "Chakra Petch", monospace; font-weight: 700;
  font-size: 58px; line-height: 1; color: var(--accent);
}
.res-stat:nth-child(2) span { font-size: 34px; color: var(--text); }
.pb-badge {
  background: var(--gold); color: var(--accent-ink);
  font-size: 12px; font-weight: 700; border-radius: var(--r-md);
  padding: 3px 10px; width: fit-content;
  animation: banner-pop .4s ease;
}
.pb-badge.hidden { display: none; }

#res-graph {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-xl);
  max-width: 92vw;
}
.res-grid {
  display: grid; grid-template-columns: repeat(4, minmax(120px, 1fr));
  gap: 10px; width: min(780px, 92vw);
}
.res-cell {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-xl);
  padding: 10px 16px;
}
.res-cell label { display: block; color: var(--dim); font-size: 11px; margin-bottom: 3px; }
.res-cell span { font-family: "Chakra Petch", monospace; font-weight: 700; font-size: 19px; }
.res-history { width: min(780px, 92vw); }
.res-history label { color: var(--dim); font-size: 11px; }
#res-history-chart { width: 100%; }
.res-foot {
  color: var(--dim); font-size: 13px;
  display: flex; gap: 18px; align-items: center;
}
#res-foot-note { color: var(--gold); }
#res-foot-note:empty { display: none; }
.card-btn {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-md);
  color: var(--dim); font-size: 12.5px; padding: 5px 12px;
  transition: color .15s, border-color .15s;
}
.card-btn:hover { color: var(--accent); border-color: var(--accent); }

/* weakest keys */
.res-weak-wrap { width: min(780px, 92vw); }
.res-weak-wrap.hidden { display: none; }
.res-weak-wrap label { color: var(--dim); font-size: 11px; display: block; margin-bottom: 5px; }
#res-weak { display: flex; gap: 8px; flex-wrap: wrap; }
.weak-chip {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-md);
  padding: 4px 10px; font-size: 12.5px; color: var(--dim);
}
.weak-chip b {
  color: var(--danger); font-size: 14px; font-weight: 700; margin-right: 4px;
}

/* daily leaderboard */
.res-board-wrap { width: min(780px, 92vw); }
.res-board-wrap.hidden { display: none; }
.res-board-wrap > label { color: var(--dim); font-size: 11px; display: block; margin-bottom: 6px; }
.board-submit { display: flex; gap: 8px; align-items: center; margin-bottom: 10px; }
#board-name {
  background: var(--bg2); border: 1px solid var(--line); border-radius: var(--r-md);
  color: var(--text); font-family: inherit; font-size: 13px;
  padding: 6px 10px; width: 150px;
}
#board-name:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
#board-send { border: 1px solid var(--line); }
#board-send:disabled { opacity: .5; cursor: default; }
#board-status { font-size: 12px; color: var(--dim); }
#board-status.board-ok { color: var(--ok); }
#board-status.board-err { color: var(--danger); }

#res-board { list-style: none; display: flex; flex-direction: column; gap: 3px; max-height: 260px; overflow-y: auto; }
.board-row {
  display: grid; grid-template-columns: 34px 1fr auto auto; gap: 12px; align-items: center;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-md);
  padding: 6px 12px; font-size: 13px;
}
.board-row.mine { border-color: var(--accent); }
.board-rank { color: var(--dim); font-size: 12px; text-align: center; }
.board-name { color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.board-score { font-family: "Chakra Petch", monospace; font-weight: 700; color: var(--accent); }
.board-meta { color: var(--dim); font-size: 11.5px; }
.board-empty { color: var(--dim); font-size: 12.5px; padding: 8px 2px; }

/* custom text modal */
#custom-modal { z-index: 80; background: color-mix(in srgb, var(--bg) 72%, transparent); }
.modal-box {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-2xl);
  padding: 26px 30px; width: min(560px, 92vw);
  display: flex; flex-direction: column; gap: 14px; text-align: left;
}
.modal-title { font-family: "Chakra Petch", monospace; font-size: 20px; font-weight: 700; }
#custom-text {
  background: var(--bg2); border: 1px solid var(--line); border-radius: var(--r-lg);
  color: var(--text); font-family: inherit; font-size: 13.5px;
  padding: 10px 12px; resize: vertical; min-height: 110px;
}
#custom-text:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.modal-row { display: flex; gap: 10px; }
.modal-row .pill { border: 1px solid var(--line); }
.modal-hint { color: var(--dim); font-size: 12px; }

/* ═══════════════ theme menu ═══════════════ */
#theme-menu {
  position: fixed; top: 58px; right: 22px; z-index: 70;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-xl);
  padding: 6px; display: flex; flex-direction: column; gap: 2px;
}
#theme-menu.hidden { display: none; }
#theme-menu button {
  background: none; border: none; color: var(--dim);
  padding: 7px 18px; border-radius: var(--r-md); font-size: 13px; text-align: left;
}
#theme-menu button:hover { background: var(--line); color: var(--text); }
#theme-menu button.on { color: var(--accent); font-weight: 700; }

/* ═══════════════ footer ═══════════════ */
#footbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 22px 12px; font-size: 11.5px; color: var(--dim);
  transition: opacity .35s;
}
body.playing #footbar { opacity: 0; }

#mobile-input {
  position: fixed; opacity: 0; pointer-events: none;
  bottom: 0; left: 0; width: 1px; height: 1px; border: none;
}

/* ═══════════════ ranked, coins, shop ═══════════════ */

/* while ranked is armed, the run modifiers are ignored, so they fade */
#cfg-flags.ranked-lock #tg-punct,
#cfg-flags.ranked-lock #tg-nums,
#cfg-flags.ranked-lock #tg-focus,
#cfg-flags.ranked-lock #tg-custom { opacity: .35; }
#tg-ranked.on { color: var(--accent-ink); background: var(--gold); }

.rank-hint {
  width: min(780px, 92vw); color: var(--dim); font-size: 12.5px;
  border: 1px dashed var(--line); border-radius: var(--r-lg); padding: 9px 14px;
}
.rank-hint.hidden { display: none; }

.res-coins { color: var(--gold); font-size: 13px; font-weight: 700; }

.coin-btn {
  width: auto; padding: 0 12px; font-size: 13px; font-weight: 700;
  display: inline-flex; align-items: center; gap: 6px; color: var(--gold);
}

#shop-modal { z-index: 80; background: color-mix(in srgb, var(--bg) 72%, transparent); }
.shop-box { width: min(520px, 94vw); }
.shop-coins { float: right; color: var(--gold); font-size: 15px; }
#shop-items { display: flex; flex-direction: column; gap: 8px; max-height: 46vh; overflow-y: auto; }
.shop-item {
  display: grid; grid-template-columns: 34px 1fr auto; gap: 12px; align-items: center;
  background: var(--bg2); border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 8px 12px;
}
.shop-name { font-size: 13.5px; }
.shop-btn { border: 1px solid var(--line); white-space: nowrap; }
.shop-btn:disabled { opacity: .4; cursor: default; }

.shop-swatch { width: 26px; height: 26px; border-radius: var(--r-md); border: 2px solid var(--line); }
.sw-sunset { background: linear-gradient(135deg, #2b1055, #ff7043); }
.sw-vapor  { background: linear-gradient(135deg, #12022e, #ff71ce 55%, #01cdfe); }
.sw-aurum  { background: linear-gradient(135deg, #14100a, #f6c86a); }
.sw-wire   { background: transparent; border-color: var(--accent); box-shadow: inset 0 0 6px var(--accent); }
.sw-glass  { background: color-mix(in srgb, var(--info) 22%, transparent); border-color: var(--info); }
.sw-magma  { background: linear-gradient(135deg, #200, #ff3d00); border-color: #ff7a2f; }

/* ── purchasable themes ── */
[data-theme="sunset"] {
  --bg: #1c0f33; --bg2: #251241; --panel: #2b164a; --line: #4b2a6e;
  --dim: #9c7bb8; --text: #ffe8d6; --accent: #ff7043; --accent-ink: #2a0d02;
  --danger: #ff3d67; --ok: #7bffb2; --info: #64c7ff; --gold: #ffc36b;
  --fog: 28, 15, 51; --grid: rgba(190,110,220,.18); --grid-strong: rgba(255,112,67,.3);
}
[data-theme="vapor"] {
  --bg: #12022e; --bg2: #190440; --panel: #1e0650; --line: #3c1b78;
  --dim: #8e6cc0; --text: #e9dcff; --accent: #ff71ce; --accent-ink: #26021c;
  --danger: #ff4d4d; --ok: #05ffa1; --info: #01cdfe; --gold: #fffb96;
  --fog: 18, 2, 46; --grid: rgba(1,205,254,.16); --grid-strong: rgba(255,113,206,.3);
}
[data-theme="aurum"] {
  --bg: #14100a; --bg2: #1c160d; --panel: #221a0f; --line: #4a3a1c;
  --dim: #8f7a4e; --text: #f4e7c8; --accent: #f6c86a; --accent-ink: #211500;
  --danger: #ff5c5c; --ok: #a8e07c; --info: #7fd6ff; --gold: #ffe08a;
  --fog: 20, 16, 10; --grid: rgba(200,170,90,.16); --grid-strong: rgba(246,200,106,.3);
}

/* ── purchasable cube skins ── */
[data-skin="wire"] .face { background: transparent; border-width: 1.5px; }
[data-skin="wire"] .face.side { background: transparent; }
[data-skin="wire"] .cube:not(.locked):not(.power) .face { border-color: color-mix(in srgb, var(--accent) 55%, var(--line)); }
[data-skin="glass"] .face { background: color-mix(in srgb, var(--info) 10%, transparent); backdrop-filter: blur(2px); }
[data-skin="glass"] .face.side { background: color-mix(in srgb, var(--info) 6%, transparent); }
[data-skin="magma"] .face { background: linear-gradient(160deg, #1a0500, #3d0e00); border-color: #b33c10; }
[data-skin="magma"] .face.side { background: #200800; }
[data-skin="magma"] .cube .ch { color: #c97a52; }
[data-skin="magma"] .cube .ch.done { color: #ffab40; }

/* ═══════════════ responsive ═══════════════ */
@media (max-width: 900px) {
  #config { gap: 4px; padding: 5px 8px; }
  .pill { font-size: 11px; padding: 4px 6px; }
  #wpm-slider { width: 70px; }
  .res-grid { grid-template-columns: repeat(2, 1fr); }
  .face.front { font-size: 21px; }
  #topbar { flex-wrap: wrap; }
}