:root {
  color-scheme: light;
  --bg: #f7f7f4;
  --panel: #ffffff;
  --stage: #ecebe6;
  --text: #1f211f;
  --muted: #686b66;
  --line: #deded6;
  --soft-line: #ecece5;
  --button: #f2f2ed;
  --button-hover: #e8e8df;
  --primary: #1d6f78;
  --primary-text: #ffffff;
  --active: #d88a24;
  --done: #217b54;
  --diagram-face: #ffeb2f;
  --diagram-line: #111111;
  --diagram-arrow: #050505;
  --diagram-arrow-outline: #ffffff;
  --diagram-front: #19c83a;
  --diagram-back: #1d4fd7;
  --diagram-right: #ff6a00;
  --diagram-left: #e52222;
  --diagram-oll-empty: #fffdf4;
  --diagram-oll-side-neutral: #f8f8f2;
  --shadow: 0 18px 50px rgba(25, 28, 24, 0.08);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #151716;
  --panel: #1d201f;
  --stage: #111312;
  --text: #f1f0eb;
  --muted: #a0a49f;
  --line: #333734;
  --soft-line: #292d2a;
  --button: #252a27;
  --button-hover: #303631;
  --primary: #5ba8b1;
  --primary-text: #0b1112;
  --active: #efad55;
  --done: #6fc694;
  --diagram-face: #ffeb2f;
  --diagram-line: #101010;
  --diagram-arrow: #050505;
  --diagram-arrow-outline: #ffffff;
  --diagram-front: #19c83a;
  --diagram-back: #1d4fd7;
  --diagram-right: #ff6a00;
  --diagram-left: #e52222;
  --diagram-oll-empty: #242725;
  --diagram-oll-side-neutral: #1d201f;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  height: 100%;
}

body {
  margin: 0;
  height: 100%;
  min-height: 100vh;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body.front-open {
  overflow: hidden;
}

button,
input,
select {
  font: inherit;
}

button {
  color: inherit;
  touch-action: manipulation;
}

.front-page {
  position: fixed;
  inset: 0;
  z-index: 30;
  min-height: 100svh;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: clamp(20px, 5vw, 64px);
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--panel) 96%, var(--stage)) 0 min(356px, 28vw), var(--stage) min(356px, 28vw) 100%),
    var(--stage);
  color: var(--text);
  transition: opacity 180ms ease, visibility 180ms ease;
}

.front-page.is-closed {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.front-pattern {
  position: absolute;
  inset: 0;
  overflow: hidden;
  opacity: 0.74;
  pointer-events: none;
}

.front-pattern span {
  position: absolute;
  width: clamp(92px, 11vw, 152px);
  aspect-ratio: 1;
  border: 1px solid var(--line);
  border-radius: 8px;
  background-color: color-mix(in srgb, var(--panel) 72%, transparent);
  background:
    linear-gradient(90deg, transparent 0 32%, var(--soft-line) 32% 34%, transparent 34% 66%, var(--soft-line) 66% 68%, transparent 68%),
    linear-gradient(0deg, transparent 0 32%, var(--soft-line) 32% 34%, transparent 34% 66%, var(--soft-line) 66% 68%, transparent 68%),
    color-mix(in srgb, var(--panel) 72%, transparent);
  box-shadow: var(--shadow);
}

.front-pattern span:nth-child(1) {
  left: 6vw;
  top: 9vh;
}

.front-pattern span:nth-child(2) {
  right: 12vw;
  top: 13vh;
  transform: rotate(12deg);
}

.front-pattern span:nth-child(3) {
  left: 15vw;
  bottom: 11vh;
  transform: rotate(-8deg);
}

.front-pattern span:nth-child(4) {
  right: 8vw;
  bottom: 16vh;
}

.front-pattern span:nth-child(5) {
  left: 50%;
  bottom: -34px;
  transform: translateX(-50%) rotate(6deg);
}

.front-content {
  width: min(580px, 100%);
  position: relative;
  z-index: 1;
  display: grid;
  justify-items: center;
  gap: 14px;
  text-align: center;
}

.front-cube {
  width: clamp(88px, 11vw, 120px);
  aspect-ratio: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--panel) 88%, var(--stage));
  box-shadow: var(--shadow);
}

.front-cube span {
  min-width: 0;
  min-height: 0;
  border: 1px solid var(--diagram-line);
  border-radius: 3px;
  box-shadow: inset 0 2px rgba(255, 255, 255, 0.18);
}

.front-cube span:nth-child(1),
.front-cube span:nth-child(5),
.front-cube span:nth-child(9) {
  background: var(--diagram-face);
}

.front-cube span:nth-child(2),
.front-cube span:nth-child(6) {
  background: var(--diagram-front);
}

.front-cube span:nth-child(3),
.front-cube span:nth-child(7) {
  background: var(--diagram-right);
}

.front-cube span:nth-child(4) {
  background: var(--diagram-oll-empty);
}

.front-cube span:nth-child(8) {
  background: var(--diagram-back);
}

.front-kicker {
  margin: 8px 0 -4px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.16em;
}

.front-content h1 {
  margin: 0 0 10px;
  color: var(--text);
  font-size: clamp(34px, 5.5vw, 64px);
  line-height: 0.98;
  letter-spacing: 0;
}

.drill-center-button {
  position: relative;
  width: min(330px, 82vw);
  min-height: 60px;
  border: 1px solid color-mix(in srgb, var(--primary) 72%, black);
  border-radius: 8px;
  padding: 0 26px;
  display: grid;
  place-items: center;
  background: var(--primary);
  color: var(--primary-text);
  cursor: pointer;
  font-size: clamp(18px, 3vw, 24px);
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1;
  box-shadow:
    0 7px 0 color-mix(in srgb, var(--primary) 60%, #102a2d),
    0 14px 26px rgba(25, 28, 24, 0.14);
  transform: translateY(0);
  transition: transform 130ms ease, box-shadow 130ms ease, background 130ms ease;
}

.front-actions {
  display: grid;
  justify-items: center;
  gap: 16px;
}

.recognition-link {
  position: relative;
  width: min(330px, 82vw);
  min-height: 60px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  padding: 0 20px 0 24px;
  border: 1px solid color-mix(in srgb, #c86910 76%, #6b3307);
  border-radius: 8px;
  background: #e98922;
  box-shadow:
    0 7px 0 #a9500a,
    0 14px 26px rgba(25, 28, 24, 0.14);
  color: #281504;
  font-size: clamp(17px, 2.5vw, 21px);
  font-weight: 900;
  text-decoration: none;
  line-height: 1;
  transform: translateY(0);
  transition: transform 130ms ease, box-shadow 130ms ease, background 130ms ease;
}

.recognition-link:hover,
.recognition-link:focus-visible {
  background: #f29a37;
  outline: none;
  transform: translateY(-3px);
  box-shadow:
    0 10px 0 #a9500a,
    0 20px 32px rgba(25, 28, 24, 0.18);
}

.recognition-link span {
  display: inline-block;
  margin-left: 8px;
  padding: 5px 7px;
  border: 1px solid color-mix(in srgb, #5c2a05 38%, transparent);
  border-radius: 999px;
  color: #5c2a05;
  background: color-mix(in srgb, #fff 24%, transparent);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.06em;
}

.speed-timer-link { width:min(330px,82vw); min-height:60px; display:grid; grid-template-columns:1fr auto; align-items:center; padding:0 20px 0 24px; border:1px solid color-mix(in srgb,var(--primary) 72%,black); border-radius:8px; background:var(--panel); box-shadow:0 7px 0 color-mix(in srgb,var(--line) 70%,#777),0 14px 26px rgba(25,28,24,.12); color:var(--text); font-size:clamp(17px,2.5vw,21px); font-weight:900; line-height:1; text-decoration:none; transform:translateY(0); transition:transform 130ms ease,box-shadow 130ms ease,background 130ms ease; }
.speed-timer-link span { padding:5px 8px; border-radius:999px; background:var(--primary); color:var(--primary-text); font-size:10px; }
.speed-timer-link:hover,
.speed-timer-link:focus-visible { background:color-mix(in srgb,var(--panel) 84%,var(--primary)); outline:none; transform:translateY(-3px); box-shadow:0 10px 0 color-mix(in srgb,var(--line) 70%,#777),0 20px 32px rgba(25,28,24,.18); }
.speed-timer-link:active { transform:translateY(5px); box-shadow:0 2px 0 color-mix(in srgb,var(--line) 70%,#777),0 7px 14px rgba(25,28,24,.12); }
.timer-page { position:fixed; inset:0; z-index:26; display:grid; grid-template-rows:auto 1fr; visibility:hidden; opacity:0; pointer-events:none; background:var(--bg); transition:opacity 180ms ease; }
.timer-page.is-open { visibility:visible; opacity:1; pointer-events:auto; }
.timer-topbar { display:flex; align-items:center; justify-content:space-between; padding:18px clamp(20px,4vw,54px); border-bottom:1px solid var(--line); background:var(--panel); }
.timer-topbar h1,.timer-topbar p { margin:0; }.timer-topbar h1{font-size:clamp(24px,3vw,38px)}
.timer-kicker { color:var(--primary); font-size:10px; font-weight:900; letter-spacing:.16em; }
.timer-layout { min-height:0; display:grid; grid-template-columns:minmax(0,1.25fr) minmax(350px,.75fr); }
.timer-stage { min-height:0; display:grid; grid-template-rows:auto auto minmax(0,1fr) auto; background:var(--stage); padding:24px; }
.timer-stage-clock { min-height:165px; display:grid; align-content:center; justify-items:center; padding:10px 20px 0; }
.timer-cube-mount{min-height:260px;cursor:grab;touch-action:none;overscroll-behavior:contain;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}.timer-cube-mount.is-dragging{cursor:grabbing}.timer-cube-mount canvas{display:block;width:100%;height:100%;touch-action:none}.timer-cube-hint{position:relative;z-index:2;margin:0;padding:10px 12px 4px;text-align:center;color:var(--muted);font-size:13px;background:var(--stage)}
.timer-panel { overflow:auto; padding:clamp(24px,4vw,54px); background:var(--panel); }
.timer-steps { list-style:none; margin:0 0 30px; padding:0; display:grid; gap:10px; }
.timer-steps li { display:flex; gap:13px; align-items:center; padding:12px; border:1px solid var(--line); border-radius:10px; opacity:.5; }
.timer-steps li.active,.timer-steps li.done { opacity:1 }.timer-steps li.active{border-color:var(--primary);background:color-mix(in srgb,var(--primary) 8%,var(--panel))}
.timer-steps li>span { display:grid; place-items:center; width:30px; height:30px; border-radius:50%; background:var(--button); font-weight:900; }.timer-steps li.done>span{background:var(--done);color:white}
.timer-steps strong,.timer-steps small{display:block}.timer-steps small{margin-top:3px;color:var(--muted)}
.timer-connect-row { display:grid; grid-template-columns:auto 1fr; gap:10px }.timer-connect-row .smart-cube-mac{width:100%}.timer-status{min-height:42px;color:var(--muted);line-height:1.45}
.timer-scramble-block { display:grid; gap:12px; padding:18px; border:1px solid var(--line); border-radius:12px; background:var(--bg) }.timer-scramble-block>span{color:var(--muted);font-size:11px;font-weight:900;text-transform:uppercase;letter-spacing:.1em}.timer-scramble-block>strong{font-size:clamp(17px,2vw,24px);line-height:1.55;word-spacing:.16em}
.timer-stage-scramble { width:min(920px,94%); justify-self:center; grid-template-columns:1fr; align-items:center; margin:0 0 10px; padding:8px 12px; background:color-mix(in srgb,var(--panel) 88%,var(--stage)); box-shadow:0 6px 18px rgba(25,28,24,.05); }
.timer-stage-scramble>strong{font-size:clamp(15px,1.55vw,20px);line-height:1.3}
.timer-sidebar-scramble-button{width:100%;min-height:44px;margin-top:2px;font-weight:850}
.timer-mobile-scramble-button{display:none}
.speed-clock { width:9ch; font-family:"Cascadia Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace; font-size:clamp(64px,7.7vw,124px); font-weight:800; font-variant-numeric:tabular-nums lining-nums; font-feature-settings:"tnum" 1,"lnum" 1; letter-spacing:-.055em; line-height:.9; white-space:nowrap; text-align:center; color:var(--text) }.inspection-label{margin:16px 0 0;text-align:center;color:var(--muted);font-weight:800}
.timer-scramble-moves { display:flex; flex-wrap:wrap; gap:4px 3px; word-spacing:0 !important; }
.timer-scramble-moves span { display:inline-grid; place-items:center; min-width:32px; padding:3px 5px; border-radius:5px; transition:background 140ms ease,color 140ms ease,transform 140ms ease; }
.timer-scramble-moves span.done { background:var(--done); color:#fff; }
.timer-scramble-moves span.current { outline:2px solid var(--primary); outline-offset:1px; background:color-mix(in srgb,var(--primary) 10%,var(--panel)); transform:translateY(-1px); }
.timer-history { margin-top:30px; display:grid; gap:18px; }
.timer-history-heading { display:flex; align-items:end; justify-content:space-between; gap:16px; }.timer-history-heading span{color:var(--primary);font-size:10px;font-weight:900;letter-spacing:.14em;text-transform:uppercase}.timer-history-heading h2{margin:3px 0 0;font-size:24px}.timer-history-heading>strong{color:var(--muted);font-size:12px}
.timer-stats { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:10px; }.timer-stats>div{padding:14px;border:1px solid var(--line);border-radius:10px;background:var(--bg)}.timer-stats>div.best{grid-column:1/-1;background:color-mix(in srgb,var(--done) 9%,var(--panel));border-color:color-mix(in srgb,var(--done) 38%,var(--line))}.timer-stats span,.timer-stats strong{display:block}.timer-stats span{margin-bottom:6px;color:var(--muted);font-size:10px;font-weight:900;text-transform:uppercase;letter-spacing:.08em}.timer-stats strong{font-family:"Cascadia Mono","SFMono-Regular",Consolas,monospace;font-size:18px;font-variant-numeric:tabular-nums}
.timer-solve-list{max-height:390px;overflow:auto;list-style:none;margin:0;padding:0;border:1px solid var(--line);border-radius:10px;background:var(--bg)}.timer-solve-list li{display:grid;grid-template-columns:54px minmax(0,1fr) auto;align-items:center;gap:16px;min-height:58px;padding:11px 14px;border-bottom:1px solid var(--line);cursor:help;transition:background 140ms ease,box-shadow 140ms ease}.timer-solve-list li:last-child{border-bottom:0}.timer-solve-list li:hover,.timer-solve-list li:focus-visible{outline:none;background:color-mix(in srgb,var(--primary) 7%,var(--panel));box-shadow:inset 3px 0 var(--primary)}.timer-solve-list li>span:first-child{color:var(--muted);font-size:12px;font-weight:800}.timer-solve-list li strong{font-family:"Cascadia Mono","SFMono-Regular",Consolas,monospace;font-size:16px;font-variant-numeric:tabular-nums}.timer-solve-list li.empty{display:flex;justify-content:center;padding:30px 14px;color:var(--muted);font-size:13px;text-align:center;cursor:default}.timer-solve-list li.empty:hover{background:transparent;box-shadow:none}.timer-solve-list li>div{display:grid;gap:5px}.timer-solve-inline-splits{display:none}.timer-solve-breakdown-indicator{display:grid;grid-template-columns:repeat(4,4px);gap:2px;align-items:end;height:18px;padding:4px 5px;border:1px solid var(--line);border-radius:6px;background:var(--panel)}.timer-solve-breakdown-indicator i{display:block;width:4px;border-radius:3px}.timer-solve-breakdown-indicator i:nth-child(1){height:7px;background:#2f91d0}.timer-solve-breakdown-indicator i:nth-child(2){height:12px;background:#2f9d6f}.timer-solve-breakdown-indicator i:nth-child(3){height:9px;background:#e2a51b}.timer-solve-breakdown-indicator i:nth-child(4){height:14px;background:#d9645d}
.timer-history-popover{position:fixed;z-index:110;width:min(360px,calc(100vw - 24px));padding:14px;border:1px solid color-mix(in srgb,var(--primary) 24%,var(--line));border-radius:13px;background:var(--panel);box-shadow:0 18px 48px rgba(18,22,20,.24);pointer-events:none}.timer-history-popover[hidden]{display:none}.timer-history-popover-heading{display:flex;align-items:baseline;justify-content:space-between;gap:14px;margin:0 1px 10px}.timer-history-popover-heading span{font-size:11px;font-weight:900;letter-spacing:.09em;text-transform:uppercase}.timer-history-popover-heading strong{font-family:"Cascadia Mono","SFMono-Regular",Consolas,monospace;font-size:13px;font-variant-numeric:tabular-nums}.timer-history-popover-splits{grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;margin:0}.timer-history-popover .timer-result-split{padding:8px 9px 9px;border-radius:8px}.timer-history-popover .timer-result-split dd{margin-top:5px}.timer-history-popover .timer-result-split dd>strong{font-size:12px}.timer-history-popover .timer-result-split-bar{height:4px;margin-top:6px}
.timer-result-splits-heading{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin:0 0 10px;text-align:left}.timer-result-splits-heading span{font-size:12px;font-weight:900;letter-spacing:.09em;text-transform:uppercase}.timer-result-splits-heading small{color:var(--muted);font-size:10px;font-weight:750}
.timer-result-splits{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin:0 0 28px;text-align:left}.timer-result-split{--split-color:var(--primary);--split-ratio:0%;padding:12px 13px 13px;border:1px solid var(--line);border-radius:10px;background:color-mix(in srgb,var(--split-color) 4%,var(--bg))}.timer-result-split-cross{--split-color:#2f91d0}.timer-result-split-f2l{--split-color:#2f9d6f}.timer-result-split-oll{--split-color:#e2a51b}.timer-result-split-pll{--split-color:#d9645d}.timer-result-split dt{display:flex;align-items:center;color:var(--muted);font-size:10px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}.timer-result-split dt small{margin-left:auto;color:var(--split-color);font-size:10px;font-weight:900;letter-spacing:0}.timer-result-split-dot{width:7px;height:7px;margin-right:6px;border-radius:50%;background:var(--split-color);box-shadow:0 0 0 3px color-mix(in srgb,var(--split-color) 14%,transparent)}.timer-result-split dd{margin:7px 0 0}.timer-result-split dd>strong{display:block;font-family:"Cascadia Mono","SFMono-Regular",Consolas,monospace;font-size:15px;font-weight:850;font-variant-numeric:tabular-nums}.timer-result-split-bar{display:block;height:6px;margin-top:9px;overflow:hidden;border-radius:999px;background:color-mix(in srgb,var(--split-color) 14%,var(--line))}.timer-result-split-bar>span{display:block;width:var(--split-ratio);height:100%;min-width:3px;border-radius:inherit;background:var(--split-color);box-shadow:0 0 10px color-mix(in srgb,var(--split-color) 42%,transparent);animation:timer-split-grow 520ms cubic-bezier(.22,.8,.32,1) both}@keyframes timer-split-grow{from{width:0}}
.timer-modal { position:fixed; inset:0; z-index:100; display:grid; place-items:center; padding:20px; background:rgba(10,12,11,.7); backdrop-filter:blur(8px) }.timer-modal[hidden]{display:none}.timer-modal-card{width:min(520px,100%);padding:38px;text-align:center;border-radius:16px;background:var(--panel);box-shadow:var(--shadow)}.timer-modal-card p,.timer-modal-card h2{margin:0}.timer-modal-card p{color:var(--done);font-weight:900;text-transform:uppercase;letter-spacing:.12em;font-size:11px}.timer-modal-card h2{margin-top:8px}.timer-modal-card>strong{display:block;margin:26px 0 32px;font-family:"Cascadia Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;font-size:clamp(42px,10vw,70px);font-variant-numeric:tabular-nums lining-nums;font-feature-settings:"tnum" 1,"lnum" 1;letter-spacing:-.055em;white-space:nowrap}
@media (max-width:520px){
  .timer-modal{padding:12px}.timer-modal-card{padding:28px 20px 24px}.timer-modal-card>strong{margin:20px 0 26px;font-size:clamp(40px,14vw,60px)}.timer-result-splits{grid-template-columns:1fr;margin-bottom:22px}.timer-result-splits-heading{margin-bottom:8px}.timer-result-split{padding:10px 12px}.timer-result-split dd{display:grid;grid-template-columns:auto minmax(90px,1fr);align-items:center;gap:12px}.timer-result-split-bar{margin-top:0}
}
@media (prefers-reduced-motion:reduce){.timer-result-split-bar>span{animation:none}}
@media (max-width:800px){
  .timer-page{overflow:auto}
  .timer-topbar{position:sticky;top:0;z-index:10;padding:9px 14px}.timer-topbar h1{font-size:24px}.timer-topbar .timer-kicker{font-size:8px}.timer-topbar .button{min-height:40px;padding:0 14px}
  .timer-layout{display:grid;grid-template-columns:1fr;grid-template-rows:auto auto;overflow:visible}
  .timer-stage{height:calc(100svh - 67px);min-height:540px;grid-template-rows:auto auto auto minmax(210px,1fr) auto;padding:8px 10px 6px}
  .timer-stage-clock{min-height:100px;padding:4px 8px 0}.speed-clock{width:9ch;font-size:clamp(48px,15vw,68px)}.inspection-label{margin-top:8px;font-size:13px}
  .timer-stage-scramble{width:100%;min-height:54px;margin:4px 0 6px;padding:6px 7px;border-radius:9px}
  .timer-stage-scramble>strong{font-size:15px;line-height:1.2}.timer-scramble-moves{justify-content:center;gap:3px 2px}.timer-scramble-moves span{min-width:27px;padding:2px 3px}
  .timer-mobile-scramble-button{display:block;justify-self:center;min-height:38px;margin:0 0 4px;padding:0 18px;font-size:13px;font-weight:850}
  .timer-cube-mount{min-height:210px}.timer-cube-hint{padding:5px 8px 2px;font-size:11px}
  .timer-panel{overflow:visible;padding:18px 16px 28px}.timer-connect-row{grid-template-columns:1fr}.timer-sidebar-scramble-button{display:none}.timer-history{margin-top:20px}
}
@media (max-width:390px) and (max-height:720px){
  .timer-stage{height:calc(100svh - 61px);min-height:500px}.timer-stage-clock{min-height:86px}.speed-clock{font-size:46px}.inspection-label{font-size:12px}.timer-stage-scramble>strong{font-size:13px}.timer-scramble-moves span{min-width:24px}.timer-cube-mount{min-height:190px}.timer-cube-hint{display:none}
}

.recognition-page {
  position: fixed;
  inset: 0;
  z-index: 25;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  min-height: 100svh;
  overflow: hidden;
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  background: color-mix(in srgb, var(--panel) 92%, var(--stage));
  color: var(--text);
  transition: opacity 180ms ease, visibility 180ms ease;
}

.recognition-page.is-open {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.recognition-topbar {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px clamp(18px, 3vw, 44px);
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.recognition-identity,
.recognition-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.recognition-identity h1,
.recognition-prompt h2,
.recognition-prompt p,
.recognition-cube-hint {
  margin: 0;
}

.recognition-identity h1 {
  margin: 0;
  font-size: 21px;
  line-height: 1.05;
}

.recognition-set {
  margin-left: clamp(10px, 3vw, 54px);
  padding: 11px 22px;
  border-radius: 8px;
  color: var(--primary-text);
  background: var(--primary);
  font-size: 18px;
  font-weight: 900;
}

.recognition-session {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

.recognition-session strong { font-size: 20px; }
.recognition-session span { color: var(--muted); font-size: 12px; }

.recognition-guide-button {
  min-width: 104px;
}

.recognition-home-button {
  min-width: 58px;
}

.recognition-main {
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, .9fr);
  grid-template-rows: minmax(0, 1fr) auto;
  padding: 32px clamp(34px, 5vw, 76px) 26px;
  column-gap: clamp(40px, 6vw, 92px);
}

.recognition-stage {
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  padding: 0;
  gap: 12px;
}

.recognition-prompt {
  width: min(580px, 100%);
  text-align: left;
}

.recognition-prompt h2 {
  max-width: 560px;
  font-size: clamp(26px, 2.6vw, 38px);
  line-height: 1.18;
}

.recognition-auf {
  width: max-content;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 750;
}
.recognition-auf input { accent-color: var(--primary); }
.recognition-auf strong { color: var(--primary); font-size: 11px; }

.recognition-cube-mount {
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  cursor: grab;
  touch-action: none;
  overscroll-behavior: contain;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  background: transparent;
}

.recognition-cube-mount:active,
.recognition-cube-mount.is-dragging {
  cursor: grabbing;
}

.recognition-cube-mount canvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
}

.recognition-cube-hint {
  color: var(--muted);
  text-align: center;
  font-size: 12px;
  font-weight: 700;
}

.recognition-panel {
  min-height: 0;
  display: grid;
  align-content: center;
  gap: 18px;
  padding: 0;
}

.recognition-score {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

.recognition-score span {
  display: grid;
  gap: 3px;
  justify-items: center;
  padding: 4px 12px 14px;
  border-right: 1px solid var(--line);
  color: var(--muted);
  background: transparent;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
}
.recognition-score span:last-child { border-right: 0; }

.recognition-score strong {
  color: var(--text);
  font-size: 23px;
  line-height: 1;
}

.recognition-answers {
  display: grid;
  gap: 8px;
}

.recognition-answer {
  min-height: 70px;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto auto;
  align-items: center;
  align-content: center;
  gap: 12px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  text-align: left;
}

.recognition-answer:hover,
.recognition-answer:focus-visible {
  border-color: var(--primary);
  background: var(--button-hover);
  outline: none;
}

.recognition-answer strong {
  font-size: 17px;
}

.recognition-answer span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
}

.recognition-answer kbd,
.recognition-shortcuts kbd {
  min-width: 34px;
  padding: 7px 8px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--button);
  text-align: center;
  font: inherit;
  font-weight: 900;
}
.recognition-answer b { color: var(--done); font-size: 22px; }

.recognition-answer.is-correct {
  border-color: color-mix(in srgb, var(--done) 60%, var(--line));
  background: color-mix(in srgb, var(--done) 12%, var(--button));
  color: var(--done);
}

.recognition-answer.is-muted {
  opacity: 0.48;
}

.recognition-feedback {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: .75fr 1.65fr 1.05fr 1.35fr;
  gap: 0;
  padding: 18px 20px;
  border: 1px solid color-mix(in srgb, var(--done) 22%, var(--line));
  border-radius: 10px;
  background: color-mix(in srgb, var(--done) 4%, var(--panel));
  color: var(--muted);
  font-size: 12px;
}
.recognition-feedback[hidden] { display: none; }
.recognition-feedback > div { min-width: 0; padding: 0 20px; border-right: 1px solid var(--line); }
.recognition-feedback > div:first-child { padding-left: 0; }
.recognition-feedback > div:last-child { padding-right: 0; border-right: 0; }
.recognition-feedback span { display: block; margin-bottom: 7px; font-weight: 800; }
.recognition-feedback p { margin: 5px 0 0; line-height: 1.45; }
.recognition-result strong { display: block; color: var(--done); font-size: 21px; }
.recognition-result span { margin-top: 8px; color: var(--text); font-size: 14px; }
.recognition-learning strong { color: var(--text); font-size: 14px; }
.recognition-learning p{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:start;gap:8px;margin-top:10px;padding:9px 10px;border-left:3px solid var(--primary);border-radius:0 7px 7px 0;background:color-mix(in srgb,var(--primary) 7%,var(--panel))}.recognition-learning p b{padding:3px 5px;border-radius:4px;color:var(--primary);background:color-mix(in srgb,var(--primary) 12%,transparent);font-size:8px;font-weight:950;letter-spacing:.08em;text-transform:uppercase}.recognition-learning p span{display:block;margin:0;color:var(--muted);font-weight:700;line-height:1.45}
.recognition-correct-case{display:grid;grid-template-columns:72px minmax(0,1fr);align-items:center;column-gap:12px}.recognition-correct-case>span{grid-column:1/-1}.recognition-correct-case .pll-diagram{width:72px;height:60px}.recognition-correct-case>div:last-child{display:grid;gap:4px}.recognition-correct-case strong{color:var(--text);font-size:16px}.recognition-correct-case small{color:var(--muted);font-size:9px;font-weight:850;letter-spacing:.06em;text-transform:uppercase}
.recognition-rating > div { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.recognition-rating button { padding: 10px 6px; border: 0; border-radius: 8px; background: #ff806d; font-weight: 900; cursor: pointer; }
.recognition-rating button:nth-child(2) { background: #f3bd4c; }
.recognition-rating button:nth-child(3) { color: #fff; background: var(--primary); }
.recognition-rating small { display: block; margin-top: 6px; font-size: 9px; font-weight: 650; }
.recognition-shortcuts { margin: 0; color: var(--muted); text-align: center; font-size: 12px; }
.recognition-shortcuts span { padding: 0 8px; }

.recognition-next-button {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
}

.recognition-next-button[hidden] {
  display: none;
}

.recognition-page.feedback-open,body.recognition-feedback-open{overflow:hidden}
.recognition-feedback-modal{position:fixed;inset:0;z-index:90;display:grid;place-items:center;padding:20px;overflow:hidden;background:rgba(12,15,14,.72);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.recognition-feedback-modal[hidden]{display:none}
.recognition-feedback-card{position:relative;width:min(940px,100%);max-height:calc(100svh - 40px);overflow:auto;border:1px solid color-mix(in srgb,var(--done) 28%,var(--line));border-radius:20px;background:var(--panel);box-shadow:0 28px 80px rgba(12,16,14,.34);animation:recognition-modal-in 220ms cubic-bezier(.22,.8,.32,1) both}
@keyframes recognition-modal-in{from{opacity:0;transform:translateY(12px) scale(.985)}}
.recognition-feedback-close{position:absolute;top:18px;right:18px;z-index:2;width:38px;height:38px;display:grid;place-items:center;padding:0;border:1px solid var(--line);border-radius:50%;color:var(--muted);background:color-mix(in srgb,var(--panel) 88%,transparent);font-size:25px;line-height:1;cursor:pointer}.recognition-feedback-close:hover,.recognition-feedback-close:focus-visible{outline:none;border-color:var(--primary);color:var(--text);background:var(--button-hover)}
.recognition-feedback-hero{padding:27px 72px 22px 30px;border-bottom:1px solid var(--line);background:linear-gradient(125deg,color-mix(in srgb,var(--done) 12%,var(--panel)),var(--panel) 55%)}.recognition-feedback-hero>span{display:block;margin-bottom:7px;color:var(--done);font-size:10px;font-weight:950;letter-spacing:.13em;text-transform:uppercase}.recognition-feedback-hero>strong{display:block;color:var(--text);font-size:clamp(27px,3vw,38px);line-height:1}.recognition-feedback-hero>p{margin:8px 0 0;color:var(--muted);font-size:14px;font-weight:750}
.recognition-feedback-content{display:grid;grid-template-columns:270px minmax(0,1fr);grid-template-rows:auto auto;gap:16px;padding:22px 28px}.recognition-case-showcase{grid-row:1/3;display:grid;align-content:start;justify-items:center;min-width:0;padding:20px;border:1px solid color-mix(in srgb,var(--primary) 22%,var(--line));border-radius:14px;background:linear-gradient(150deg,color-mix(in srgb,var(--primary) 8%,var(--bg)),var(--bg))}.recognition-case-showcase>span,.recognition-learning>span,.recognition-auf-examples>div:first-child>span{justify-self:start;width:100%;margin-bottom:10px;color:var(--muted);font-size:10px;font-weight:950;letter-spacing:.1em;text-transform:uppercase}.recognition-case-diagram{width:210px;height:166px;display:grid;place-items:center;margin:0 auto 8px}.recognition-case-diagram .pll-diagram{width:210px;height:166px}.recognition-case-showcase>strong{color:var(--text);font-size:24px}.recognition-case-showcase>small{margin-top:5px;color:var(--muted);font-size:9px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}
.recognition-feedback-content .recognition-learning{min-width:0;padding:18px 20px;border:1px solid var(--line);border-radius:13px;background:var(--bg)}.recognition-feedback-content .recognition-learning>strong{display:block;font-size:18px;line-height:1.32}.recognition-feedback-content .recognition-learning p{margin-bottom:0}.recognition-feedback-content .recognition-learning p span{font-size:12px}
.recognition-auf-examples{min-width:0;padding:17px 20px 18px;border:1px solid var(--line);border-radius:13px;background:var(--bg)}.recognition-auf-examples>div:first-child{display:flex;align-items:baseline;justify-content:space-between;gap:14px}.recognition-auf-examples>div:first-child>span{width:auto;margin-bottom:10px}.recognition-auf-examples>div:first-child>small{color:var(--muted);font-size:10px}.recognition-auf-example-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.recognition-auf-example-grid figure{min-width:0;display:grid;justify-items:center;gap:5px;margin:0;padding:8px 5px 6px;border:1px solid var(--line);border-radius:9px;background:var(--panel)}.recognition-auf-example-diagram{width:92px;height:86px;display:grid;place-items:center;overflow:hidden}.recognition-auf-example-diagram .pll-diagram{width:82px;height:66px;transform:rotate(var(--auf-turn));transform-origin:center;transition:transform 180ms ease}.recognition-auf-example-grid figcaption{color:var(--muted);font-size:9px;font-weight:900;letter-spacing:.06em;text-transform:uppercase}
.recognition-feedback-card>.recognition-rating{position:sticky;bottom:0;z-index:3;display:flex;align-items:center;justify-content:space-between;gap:22px;padding:18px 28px;border-top:1px solid var(--line);background:color-mix(in srgb,var(--bg) 88%,var(--panel));box-shadow:0 -10px 24px rgba(18,22,20,.08)}.recognition-feedback-card>.recognition-rating>span{margin:0;color:var(--text);font-size:13px;font-weight:900}.recognition-feedback-card>.recognition-rating>div{width:min(430px,100%);grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}.recognition-feedback-card>.recognition-rating button{min-height:52px;transition:transform 120ms ease,filter 120ms ease}.recognition-feedback-card>.recognition-rating button:hover,.recognition-feedback-card>.recognition-rating button:focus-visible{outline:none;filter:saturate(1.08) brightness(1.02);transform:translateY(-2px)}
@media (max-width:760px){
  .recognition-feedback-modal{place-items:start center;padding:10px}.recognition-feedback-card{max-height:calc(100svh - 20px);border-radius:15px}.recognition-feedback-close{top:13px;right:13px}.recognition-feedback-hero{padding:22px 60px 18px 20px}.recognition-feedback-content{grid-template-columns:1fr;grid-template-rows:auto;gap:12px;padding:14px}.recognition-case-showcase{grid-row:auto;grid-template-columns:130px minmax(0,1fr);grid-template-rows:auto auto auto;justify-items:start;column-gap:16px;padding:14px}.recognition-case-showcase>span{grid-column:1/-1}.recognition-case-diagram{grid-row:2/4;width:130px;height:104px;margin:0}.recognition-case-diagram .pll-diagram{width:130px;height:104px}.recognition-case-showcase>strong{align-self:end;font-size:21px}.recognition-case-showcase>small{align-self:start}.recognition-auf-example-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.recognition-feedback-card>.recognition-rating{display:grid;gap:12px;padding:15px 14px 17px}.recognition-feedback-card>.recognition-rating>div{width:100%}
}
@media (max-width:420px){
  .recognition-feedback-content .recognition-learning,.recognition-auf-examples{padding:14px}.recognition-case-showcase{grid-template-columns:112px minmax(0,1fr);column-gap:12px}.recognition-case-diagram,.recognition-case-diagram .pll-diagram{width:112px;height:92px}.recognition-auf-example-diagram{width:84px;height:76px}.recognition-auf-example-diagram .pll-diagram{width:72px;height:58px}.recognition-feedback-card>.recognition-rating>div{gap:6px}.recognition-feedback-card>.recognition-rating button{padding:8px 4px;font-size:12px}
}
@media (prefers-reduced-motion:reduce){.recognition-feedback-card{animation:none}.recognition-auf-example-diagram .pll-diagram{transition:none}}

.drill-center-button::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.drill-center-button::before {
  border-radius: inherit;
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.18);
}

.drill-center-button:hover,
.drill-center-button:focus-visible {
  background: color-mix(in srgb, var(--primary) 90%, #ffffff);
  outline: none;
  transform: translateY(-3px);
  box-shadow:
    0 10px 0 color-mix(in srgb, var(--primary) 60%, #102a2d),
    0 20px 32px rgba(25, 28, 24, 0.18);
}

.drill-center-button:active,
.recognition-link:active {
  transform: translateY(5px);
  box-shadow:
    0 2px 0 color-mix(in srgb, var(--primary) 60%, #102a2d),
    0 7px 14px rgba(25, 28, 24, 0.12);
}

.recognition-link:active {
  box-shadow:
    0 2px 0 #a9500a,
    0 7px 14px rgba(25, 28, 24, 0.12);
}

.app-shell {
  height: 100vh;
  min-height: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}

.topbar {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px clamp(16px, 3vw, 34px);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  backdrop-filter: blur(14px);
  position: sticky;
  top: 0;
  z-index: 5;
}

.identity {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 14px;
}

.mark {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: var(--text);
  color: var(--bg);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0;
}

.identity h1,
.stage-header h2 {
  margin: 0;
  letter-spacing: 0;
}

.identity h1 {
  font-size: clamp(20px, 2.4vw, 28px);
  line-height: 1.08;
}

.identity p,
.stage-header p {
  margin: 4px 0 0;
  color: var(--muted);
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.mode-tabs {
  min-height: 38px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 3px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--panel) 74%, var(--stage));
}

.mode-tab {
  min-width: 52px;
  height: 30px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  padding: 0 8px;
  white-space: nowrap;
}

.mode-tab:hover,
.mode-tab:focus-visible {
  color: var(--text);
  outline: none;
}

.mode-tab.active {
  background: var(--primary);
  color: var(--primary-text);
}

.mode-tab:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.select-label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.variant-control {
  min-width: 170px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.variant-hint {
  min-height: 13px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.variant-hint.is-pick {
  color: var(--done);
}

.variant-hint.is-balance {
  color: var(--active);
}

select,
.search {
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  outline: none;
}

select {
  min-width: 170px;
  padding: 0 34px 0 10px;
}

.variant-control select {
  width: 100%;
}

option.right-hand-pick {
  color: var(--done);
  font-weight: 900;
}

option.right-hand-heavy {
  font-weight: 800;
}

.search {
  width: 100%;
  padding: 0 12px;
}

.layout {
  height: 100%;
  min-height: 0;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(320px, 356px) minmax(0, 1fr);
}

.case-panel {
  min-width: 0;
  min-height: 0;
  background: var(--panel);
  display: flex;
  flex-direction: column;
}

.case-panel {
  border-right: 1px solid var(--line);
  padding: 18px;
  gap: 14px;
}

.panel-header,
.move-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.memory-tools {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 2px;
}

.memory-button {
  min-width: 0;
  height: 32px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 10px;
  background: color-mix(in srgb, var(--panel) 72%, transparent);
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
}

.memory-button:hover,
.memory-button:focus-visible {
  color: var(--text);
  border-color: var(--primary);
  outline: none;
}

.memory-button.active {
  color: var(--primary-text);
  border-color: color-mix(in srgb, var(--primary) 85%, black);
  background: var(--primary);
}

.memory-button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.smart-cube-panel {
  min-width: 0;
  width: fit-content;
  max-width: 100%;
  border: 1px solid color-mix(in srgb, var(--line) 86%, transparent);
  border-radius: 8px;
  padding: 7px 8px;
  background: color-mix(in srgb, var(--panel) 66%, var(--stage));
  display: inline-grid;
  grid-template-columns: minmax(0, auto) auto;
  align-items: center;
  gap: 6px 8px;
}

.smart-cube-panel.connected {
  border-color: color-mix(in srgb, var(--done) 34%, var(--line));
}

.smart-cube-panel.match {
  background: color-mix(in srgb, var(--done) 8%, var(--panel));
}

.smart-cube-panel.miss,
.smart-cube-panel.error {
  border-color: color-mix(in srgb, var(--active) 54%, var(--line));
}

.smart-cube-actions,
.smart-cube-tools,
.smart-cube-details,
.smart-cube-stats {
  min-width: 0;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.smart-cube-actions,
.smart-cube-tools {
  flex: 0 1 auto;
}

.smart-cube-actions {
  grid-column: 1;
}

.smart-cube-tools {
  grid-column: 2;
  padding-left: 8px;
  border-left: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
}

.smart-cube-details {
  grid-column: 1 / -1;
  justify-self: start;
  gap: 6px 9px;
  padding-top: 1px;
}

.smart-cube-panel .memory-button {
  height: 30px;
  padding: 0 10px;
  border-radius: 7px;
  font-size: 11px;
}

.smart-cube-button.active {
  color: var(--primary-text);
  border-color: color-mix(in srgb, var(--done) 80%, black);
  background: var(--done);
}

.smart-cube-mac {
  flex: 0 0 192px;
  min-width: 154px;
  height: 30px;
  border: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  border-radius: 7px;
  padding: 0 9px;
  color: var(--text);
  background: color-mix(in srgb, var(--stage) 64%, transparent);
  font: inherit;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
  outline: none;
}

.smart-cube-mac::placeholder {
  color: color-mix(in srgb, var(--muted) 70%, transparent);
}

.smart-cube-mac:focus {
  border-color: color-mix(in srgb, var(--accent) 72%, var(--line));
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 16%, transparent);
}

.smart-cube-reset {
  margin-left: 0;
}

.smart-cube-diagnostics-button {
  flex: 0 0 auto;
}

.smart-cube-status {
  min-width: 0;
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  border: 1px solid color-mix(in srgb, var(--line) 74%, transparent);
  border-radius: 999px;
  padding: 0 10px;
  color: var(--muted);
  background: color-mix(in srgb, var(--stage) 42%, transparent);
  font-size: 11px;
  font-weight: 900;
  line-height: 1.2;
  white-space: nowrap;
}

.smart-cube-panel.connected .smart-cube-status {
  color: var(--done);
  border-color: color-mix(in srgb, var(--done) 34%, var(--line));
  background: color-mix(in srgb, var(--done) 9%, transparent);
}

.smart-cube-stats span {
  min-height: 26px;
  display: inline-flex;
  align-items: center;
  border: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  border-radius: 7px;
  padding: 0 8px;
  color: var(--muted);
  background: color-mix(in srgb, var(--stage) 45%, transparent);
  font-size: 10px;
  font-weight: 900;
  line-height: 1;
  text-transform: uppercase;
  white-space: nowrap;
}

.smart-cube-stats strong {
  margin-left: 4px;
  color: var(--text);
  font-size: 13px;
}

.smart-cube-feedback {
  min-height: 26px;
  display: inline-flex;
  align-items: center;
  color: var(--muted);
  font-size: 11.5px;
  font-weight: 800;
  line-height: 1.35;
}

.smart-cube-panel.match .smart-cube-feedback {
  color: var(--done);
}

.smart-cube-panel.miss .smart-cube-feedback,
.smart-cube-panel.error .smart-cube-feedback {
  color: color-mix(in srgb, var(--active) 82%, var(--text));
}

.case-list {
  min-height: 0;
  overflow: auto;
  display: grid;
  gap: 8px;
  padding-right: 3px;
}

.case-button {
  width: 100%;
  min-height: 118px;
  border: 1px solid var(--soft-line);
  border-radius: 8px;
  background: transparent;
  text-align: left;
  padding: 9px 10px;
  cursor: pointer;
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
}

.case-button:hover,
.case-button:focus-visible {
  border-color: var(--primary);
  background: color-mix(in srgb, var(--primary) 8%, transparent);
  outline: none;
}

.case-button.active {
  border-color: var(--primary);
  background: color-mix(in srgb, var(--primary) 13%, transparent);
}

.case-copy {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.case-title-row {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 7px;
  flex-wrap: wrap;
}

.case-button strong {
  font-size: 16px;
  letter-spacing: 0;
}

.case-badge {
  min-width: 0;
  border: 1px solid color-mix(in srgb, var(--active) 55%, var(--line));
  border-radius: 999px;
  padding: 2px 6px;
  color: color-mix(in srgb, var(--active) 72%, var(--text));
  background: color-mix(in srgb, var(--active) 10%, transparent);
  font-size: 10px;
  font-weight: 900;
  line-height: 1;
  text-transform: uppercase;
}

.case-copy > span:not(.case-title-row) {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.25;
}

.case-button.queued:not(.active) {
  border-color: color-mix(in srgb, var(--active) 42%, var(--soft-line));
}

.case-diagram {
  width: 112px;
  height: 90px;
  display: grid;
  place-items: center;
}

.pll-diagram {
  width: 112px;
  height: 90px;
  display: block;
}

.diagram-sticker {
  fill: var(--diagram-face);
  stroke: var(--diagram-line);
  stroke-width: 1.25;
}

.oll-diagram .oll-unoriented {
  fill: var(--diagram-oll-empty);
}

.oll-diagram .oll-oriented {
  fill: var(--diagram-face);
}

.diagram-arrow {
  fill: none;
  stroke: var(--diagram-arrow);
  stroke-width: 3.05;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.diagram-arrow-swap {
  stroke-width: 3.25;
}

.diagram-arrow-outline {
  fill: none;
  stroke: var(--diagram-arrow-outline);
  stroke-width: 4.05;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 1;
  vector-effect: non-scaling-stroke;
}

.diagram-arrow-outline-swap {
  stroke-width: 4.25;
}

.diagram-arrow-edge {
  stroke: var(--diagram-arrow);
}

.diagram-arrow-corner {
  stroke: var(--diagram-arrow);
}

.diagram-marker path {
  fill: var(--diagram-arrow);
}

.diagram-marker-outline path {
  fill: var(--diagram-arrow-outline);
}

.diagram-side {
  stroke: var(--diagram-line);
  stroke-width: 1.25;
}

.diagram-side-front {
  fill: var(--diagram-front);
}

.diagram-side-back {
  fill: var(--diagram-back);
}

.diagram-side-right {
  fill: var(--diagram-right);
}

.diagram-side-left {
  fill: var(--diagram-left);
}

.diagram-side-blank {
  fill: var(--diagram-face);
}

.diagram-side-oll-yellow {
  fill: var(--diagram-face);
}

.diagram-side-oll-neutral {
  fill: var(--diagram-oll-side-neutral);
}

.diagram-node {
  fill: color-mix(in srgb, var(--panel) 88%, transparent);
  stroke-width: 1.45;
}

.diagram-node-edge {
  stroke: var(--diagram-edge);
}

.diagram-node-corner {
  stroke: var(--diagram-corner);
}

.diagram-node-center {
  display: none;
}

.stage {
  min-width: 0;
  min-height: 0;
  overflow-x: hidden;
  overflow-y: auto;
  display: grid;
  grid-template-rows: auto minmax(200px, 1fr) auto;
  background: var(--stage);
}

.stage-header {
  min-height: 78px;
  display: grid;
  grid-template-columns: minmax(150px, 1fr) auto minmax(150px, 1fr);
  align-items: center;
  gap: 16px;
  padding: 16px clamp(18px, 2.8vw, 30px);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--stage) 88%, var(--panel));
}

.stage-title {
  min-width: 0;
}

.stage-header h2 {
  font-size: clamp(22px, 2.2vw, 34px);
}

.status-pill {
  justify-self: end;
  min-width: 82px;
  height: 32px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  padding: 0 13px;
  color: var(--done);
  border: 1px solid color-mix(in srgb, var(--done) 45%, transparent);
  background: color-mix(in srgb, var(--done) 10%, transparent);
  font-size: 13px;
  font-weight: 800;
}

.status-pill.playing {
  color: var(--active);
  border-color: color-mix(in srgb, var(--active) 45%, transparent);
  background: color-mix(in srgb, var(--active) 12%, transparent);
}

.cube-mount {
  min-height: 0;
  position: relative;
  overflow: hidden;
  cursor: grab;
  touch-action: none;
  overscroll-behavior: contain;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  background:
    linear-gradient(var(--soft-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--soft-line) 1px, transparent 1px);
  background-size: 32px 32px;
}

.cube-mount:active,
.cube-mount.is-dragging {
  cursor: grabbing;
}

.cube-mount canvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
}

.stage-moves {
  min-width: 0;
  border-top: 1px solid var(--line);
  padding: 12px clamp(14px, 2vw, 24px);
  background: color-mix(in srgb, var(--stage) 78%, var(--panel));
  display: grid;
  gap: 10px;
}

.move-focus {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: stretch;
  gap: 9px;
}

.playback-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  justify-self: center;
  flex-wrap: nowrap;
  gap: 6px;
  min-width: 0;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--panel) 68%, transparent);
}

.playback-button {
  width: 32px;
  height: 32px;
  min-width: 32px;
  border: 1px solid color-mix(in srgb, var(--line) 86%, transparent);
  border-radius: 7px;
  background: var(--button);
  color: var(--text);
  display: grid;
  place-items: center;
  padding: 0;
  cursor: pointer;
}

.playback-button:hover,
.playback-button:focus-visible {
  background: var(--button-hover);
  outline: none;
}

.playback-button-primary {
  width: 36px;
  min-width: 36px;
  background: var(--primary);
  color: var(--primary-text);
  border-color: color-mix(in srgb, var(--primary) 85%, black);
}

.playback-button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.playback-icon,
.speed-icon {
  position: relative;
  width: 16px;
  height: 16px;
  display: block;
  color: currentColor;
}

.reset-icon::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 1px;
  width: 12px;
  height: 12px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
}

.reset-icon::after {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  width: 0;
  height: 0;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  border-left: 5px solid currentColor;
  transform: rotate(-35deg);
}

.previous-icon::before,
.next-icon::before {
  content: "";
  position: absolute;
  top: 4px;
  width: 8px;
  height: 8px;
  border-left: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
}

.previous-icon::before {
  left: 5px;
  transform: rotate(45deg);
}

.next-icon::before {
  right: 5px;
  transform: rotate(-135deg);
}

.play-icon::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 3px;
  width: 0;
  height: 0;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  border-left: 8px solid currentColor;
}

.play-icon.pause-icon::before {
  left: 3px;
  top: 2px;
  width: 10px;
  height: 12px;
  border-top: 0;
  border-bottom: 0;
  border-left: 3px solid currentColor;
  border-right: 3px solid currentColor;
}

.speed-icon::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 4px;
  width: 12px;
  height: 12px;
  border: 2px solid currentColor;
  border-bottom-color: transparent;
  border-radius: 50%;
}

.speed-icon::after {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  width: 7px;
  height: 2px;
  background: currentColor;
  border-radius: 999px;
  transform: rotate(-35deg);
  transform-origin: 0 50%;
}

.button {
  min-width: 74px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--button);
  color: var(--text);
  font-weight: 800;
  cursor: pointer;
  display: grid;
  place-items: center;
  line-height: 1;
  white-space: nowrap;
}

.button:hover,
.button:focus-visible {
  background: var(--button-hover);
  outline: none;
}

.button.primary {
  min-width: 96px;
  background: var(--primary);
  color: var(--primary-text);
  border-color: color-mix(in srgb, var(--primary) 85%, black);
}

.button.ghost {
  min-width: 72px;
}

.start-button {
  min-width: 0;
  height: 30px;
  padding: 0 9px;
  border-color: transparent;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.start-button:hover,
.start-button:focus-visible {
  color: var(--text);
  border-color: var(--line);
  background: color-mix(in srgb, var(--button) 52%, transparent);
}

.button.square {
  min-width: 44px;
  width: 44px;
  padding: 0;
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.speed-control {
  height: 32px;
  min-width: 190px;
  display: grid;
  grid-template-columns: 18px minmax(78px, 1fr) 44px;
  align-items: center;
  gap: 8px;
  padding: 0 9px;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--muted);
  background: color-mix(in srgb, var(--panel) 72%, transparent);
  font-size: 11px;
  font-weight: 800;
}

.speed-control input {
  width: 100%;
  accent-color: var(--primary);
}

.speed-control strong {
  color: var(--text);
  text-align: right;
}

.move-list {
  min-height: 0;
  max-height: none;
  overflow: visible;
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  gap: 9px;
  padding: 0 2px 4px;
}

.setup-move-list {
  min-width: 0;
}

.setup-strip {
  min-width: 0;
  max-width: 100%;
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 7px;
  padding: 7px 8px;
  border: 1px dashed color-mix(in srgb, var(--line) 88%, transparent);
  border-radius: 8px;
  background: color-mix(in srgb, var(--panel) 38%, transparent);
}

.setup-strip-label {
  min-height: 24px;
  display: inline-flex;
  align-items: center;
  padding: 3px 7px;
  border: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  border-radius: 7px;
  color: var(--muted);
  background: color-mix(in srgb, var(--stage) 42%, transparent);
  font-size: 10px;
  font-weight: 900;
  line-height: 1;
  text-transform: uppercase;
  white-space: nowrap;
}

.setup-strip-chips {
  min-width: 0;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 5px;
}

.setup-chip {
  min-height: 24px;
  min-width: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 4px 6px;
  border: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  border-radius: 7px;
  color: color-mix(in srgb, var(--text) 78%, var(--muted));
  background: color-mix(in srgb, var(--button) 58%, transparent);
  font-weight: 900;
  line-height: 1;
}

.setup-chip-index {
  color: var(--muted);
  font-size: 8.5px;
  opacity: 0.78;
}

.setup-chip-token {
  font-size: 12px;
}

.setup-chip.rotation {
  border-style: dashed;
  color: var(--muted);
}

.setup-chip.done {
  color: var(--done);
  border-color: color-mix(in srgb, var(--done) 38%, var(--line));
  background: color-mix(in srgb, var(--done) 9%, transparent);
}

.setup-chip.done .setup-chip-index {
  color: var(--done);
}

.setup-chip.active {
  color: #1e1408;
  border-color: color-mix(in srgb, var(--active) 70%, #000);
  background: var(--active);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--active) 20%, transparent);
}

.setup-chip.active .setup-chip-index {
  color: #1e1408;
}

.move-group {
  flex: 0 1 auto;
  min-width: 0;
  max-width: 100%;
  display: inline-flex;
  flex-direction: column;
  align-items: stretch;
  gap: 7px;
  padding: 8px;
  border: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  border-left: 3px solid color-mix(in srgb, var(--primary) 66%, var(--line));
  border-radius: 8px;
  background: color-mix(in srgb, var(--panel) 62%, transparent);
  box-shadow: 0 8px 22px rgba(25, 28, 24, 0.05);
}

.move-group-marker {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 7px;
  min-width: 0;
}

.move-group-label {
  width: 24px;
  height: 24px;
  border-radius: 7px;
  display: grid;
  place-items: center;
  color: var(--primary-text);
  border: 1px solid color-mix(in srgb, var(--primary) 82%, black);
  background: var(--primary);
  font-size: 11px;
  font-weight: 900;
  line-height: 1;
}

.move-group-name {
  flex: 1;
  min-width: 0;
  color: var(--muted);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.04em;
  line-height: 1;
  text-transform: uppercase;
  white-space: nowrap;
}

.move-group-range {
  color: color-mix(in srgb, var(--muted) 78%, var(--text));
  border: 1px solid color-mix(in srgb, var(--line) 84%, transparent);
  border-radius: 999px;
  padding: 3px 6px;
  background: color-mix(in srgb, var(--stage) 30%, transparent);
  font-size: 10px;
  font-weight: 900;
  line-height: 1;
  white-space: nowrap;
}

.move-group-chips {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.move-chip {
  position: relative;
  min-width: 48px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--button);
  color: var(--text);
  cursor: pointer;
  font-weight: 800;
  display: inline-grid;
  place-items: center;
  padding: 13px 9px 6px;
  line-height: 1;
  letter-spacing: 0;
  box-shadow: inset 0 -1px 0 color-mix(in srgb, var(--line) 55%, transparent);
}

.move-chip-index {
  position: absolute;
  top: 5px;
  left: 7px;
  color: var(--muted);
  font-size: 9px;
  font-weight: 900;
  line-height: 1;
  opacity: 0.78;
}

.move-chip-token {
  display: block;
  font-size: 16px;
}

.move-chip.phrase-chip {
  min-width: 138px;
  max-width: 188px;
  padding: 13px 12px 6px;
  display: inline-grid;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  border-color: color-mix(in srgb, var(--primary) 34%, var(--line));
  background: color-mix(in srgb, var(--primary) 12%, var(--button));
  line-height: 1;
  white-space: nowrap;
}

.phrase-main {
  max-width: 100%;
  min-width: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
}

.phrase-name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.phrase-relation {
  border: 1px solid color-mix(in srgb, var(--primary) 36%, var(--line));
  border-radius: 999px;
  padding: 2px 5px;
  color: color-mix(in srgb, var(--primary) 76%, var(--text));
  background: color-mix(in srgb, var(--primary) 8%, transparent);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.move-chip:hover,
.move-chip:focus-visible {
  border-color: var(--primary);
  outline: none;
}

.move-chip.done {
  color: var(--done);
  border-color: color-mix(in srgb, var(--done) 42%, var(--line));
  background: color-mix(in srgb, var(--done) 10%, transparent);
}

.move-chip.done .move-chip-index {
  color: var(--done);
}

.move-chip.active {
  color: #1e1408;
  border-color: color-mix(in srgb, var(--active) 70%, #000);
  background: var(--active);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--active) 24%, transparent);
}

.move-chip.active .move-chip-index {
  color: #1e1408;
  opacity: 0.76;
}

.move-chip.phrase-chip.active {
  color: #1e1408;
  background: var(--active);
}

.move-chip.phrase-chip.active .phrase-relation {
  color: #1e1408;
  border-color: color-mix(in srgb, #1e1408 34%, transparent);
  background: color-mix(in srgb, #fff 34%, transparent);
}

.move-chip.phrase-chip.done .phrase-relation {
  color: var(--done);
  border-color: color-mix(in srgb, var(--done) 30%, var(--line));
}

.move-chip.masked {
  color: var(--muted);
  border-style: dashed;
  background: color-mix(in srgb, var(--panel) 40%, transparent);
  cursor: not-allowed;
  opacity: 0.82;
}

@media (max-width: 1080px) {
  .layout {
    grid-template-columns: 320px minmax(0, 1fr);
  }

  .move-list {
    max-height: none;
  }
}

@media (max-width: 760px) {
  html,
  body {
    height: auto;
    overflow: auto;
  }

  body {
    width: 100%;
    max-width: 100vw;
    overflow-x: hidden;
  }

  body.front-open {
    overflow: hidden;
  }

  body.recognition-open {
    overflow: hidden;
  }

  .recognition-page {
    overflow-y: auto;
  }

  .recognition-topbar {
    min-height: 66px;
    padding: 9px 12px;
  }

  .recognition-identity {
    min-width: 0;
  }

  .recognition-identity .mark {
    width: 40px;
    height: 40px;
    font-size: 13px;
  }

  .recognition-identity h1 {
    font-size: 16px;
  }

  .recognition-identity p {
    font-size: 9px;
  }

  .recognition-actions {
    gap: 4px;
  }

  .recognition-actions .button {
    min-width: 0;
    height: 36px;
    padding: 0 8px;
    font-size: 11px;
  }

  .recognition-guide-button {
    display: none;
  }

  .recognition-main {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
    min-height: max-content;
  }

  .recognition-stage {
    min-height: 470px;
    padding: 18px 14px 10px;
    gap: 8px;
  }

  .recognition-prompt h2 {
    font-size: 27px;
  }

  .recognition-prompt p {
    font-size: 12px;
  }

  .recognition-cube-mount {
    min-height: 260px;
    background-size: 26px 26px;
  }

  .recognition-panel {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-content: start;
    gap: 8px;
    padding: 10px 12px 14px;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .recognition-score {
    grid-column: 1 / -1;
  }

  .recognition-answers {
    grid-column: 1 / -1;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
  }

  .recognition-answer {
    min-height: 58px;
    padding: 8px 10px;
  }

  .recognition-answer strong {
    font-size: 15px;
  }

  .recognition-answer span {
    font-size: 10px;
  }

  .recognition-feedback,
  .recognition-next-button {
    grid-column: 1 / -1;
  }

  .app-shell {
    width: 100%;
    max-width: 100vw;
    height: auto;
    min-height: 100svh;
    overflow-x: hidden;
  }

  .topbar {
    width: 100%;
    max-width: 100vw;
    min-width: 0;
    overflow: hidden;
    position: static;
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
    padding: 10px 12px;
  }

  .identity {
    gap: 10px;
  }

  .mark {
    width: 42px;
    height: 42px;
    font-size: 14px;
  }

  .identity h1 {
    font-size: 21px;
  }

  .identity p {
    font-size: 13px;
    line-height: 1.25;
  }

  .top-actions {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    flex-wrap: wrap;
    gap: 8px;
  }

  .mode-tabs {
    order: 2;
    flex: 1 0 100%;
    min-width: 0;
    height: auto;
    min-height: 50px;
    padding: 3px;
  }

  .mode-tab {
    flex: 1 1 0;
    min-width: 0;
    height: 44px;
    font-size: 13px;
  }

  #themeToggle {
    order: 1;
    margin-left: auto;
  }

  #startBtn {
    order: 1;
  }

  .select-label {
    order: 3;
    flex: 1;
    flex-basis: 100%;
    min-width: 0;
    max-width: 100%;
    font-size: 12px;
  }

  .variant-control {
    flex: 1;
    min-width: 0;
  }

  .variant-hint {
    white-space: normal;
  }

  select {
    flex: 1;
    min-width: 0;
    height: 36px;
  }

  .layout {
    display: flex;
    flex-direction: column;
    height: auto;
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
    overflow-y: visible;
  }

  .layout > * {
    flex: 0 0 auto;
    width: 100%;
    max-width: 100%;
    min-width: 0;
  }

  .case-panel {
    width: 100%;
    overflow: hidden;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding: 10px 12px 12px;
    gap: 8px;
  }

  .case-list {
    width: 100%;
    max-width: 100%;
    inline-size: 100%;
    max-inline-size: 100%;
    min-width: 0;
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    gap: 8px;
    padding: 0 2px 5px 0;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
  }

  .case-button {
    width: auto;
    min-width: 0;
    min-height: 86px;
    flex: 0 0 212px;
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 7px;
    padding: 6px 8px;
    scroll-snap-align: start;
  }

  .case-diagram,
  .pll-diagram {
    width: 76px;
    height: 62px;
  }

  .case-button strong {
    font-size: 14px;
  }

  .case-copy span {
    font-size: 11px;
  }

  .stage {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
    overflow-y: visible;
    grid-template-rows: auto auto auto;
  }

  .cube-mount {
    width: 100%;
    max-width: 100%;
    height: clamp(300px, 44svh, 420px);
    min-height: 300px;
    background-size: 28px 28px;
  }

  .stage-header {
    min-height: 0;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "title status"
      "controls controls";
    align-items: center;
    padding: 12px;
    gap: 10px 12px;
  }

  .stage-title {
    grid-area: title;
  }

  .playback-controls {
    grid-area: controls;
    justify-self: stretch;
    justify-content: center;
    flex-wrap: wrap;
  }

  .stage-header h2 {
    font-size: 24px;
  }

  .stage-header p {
    font-size: 12px;
    line-height: 1.25;
  }

  .status-pill {
    grid-area: status;
    justify-self: end;
    min-width: 72px;
    height: 30px;
    font-size: 12px;
    padding: 0 10px;
  }

  .stage-moves {
    padding: 10px 12px 12px;
    gap: 9px;
  }

  .memory-tools {
    width: 100%;
    justify-content: stretch;
    gap: 6px;
  }

  .memory-button {
    flex: 1 1 calc(50% - 6px);
    height: 34px;
    padding: 0 7px;
  }

  .smart-cube-panel {
    width: 100%;
    grid-template-columns: minmax(0, 1fr);
    padding: 7px;
    gap: 6px;
  }

  .smart-cube-actions,
  .smart-cube-tools,
  .smart-cube-details {
    grid-column: 1;
    width: 100%;
    align-items: stretch;
    gap: 6px;
  }

  .smart-cube-status {
    flex: 1 1 160px;
    display: flex;
    align-items: center;
    min-height: 32px;
  }

  .smart-cube-mac {
    flex: 1 1 calc(50% - 6px);
    min-width: 142px;
    height: 32px;
  }

  .smart-cube-tools {
    padding-left: 0;
    border-left: 0;
  }

  .smart-cube-panel .memory-button {
    height: 32px;
    padding: 0 8px;
  }

  .smart-cube-tools .memory-button {
    flex: 1 1 0;
    min-width: 0;
  }

  .smart-cube-reset {
    margin-left: 0;
  }

  .smart-cube-diagnostics-button {
    flex: 1 1 calc(50% - 6px);
  }

  .smart-cube-stats {
    gap: 6px;
  }

  .smart-cube-stats span {
    flex: 1 1 calc(50% - 6px);
    min-width: 110px;
    padding: 0 7px;
  }

  .smart-cube-feedback {
    min-height: 22px;
  }

  .move-focus {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .button {
    min-width: 0;
    height: 44px;
    padding: 0 10px;
  }

  .top-actions .button {
    width: auto;
    min-width: 68px;
    flex: 0 0 auto;
  }

  .top-actions .start-button {
    min-width: 0;
    height: 32px;
    padding: 0 8px;
    flex-basis: auto;
    font-size: 12px;
  }

  .button.primary {
    min-width: 0;
  }

  .top-speed-control {
    min-width: 150px;
    flex: 1 1 150px;
    grid-template-columns: 18px minmax(0, 1fr) 44px;
    padding: 0 8px;
  }

  .move-list {
    overflow: visible;
    max-height: none;
    gap: 8px;
    padding: 0 0 10px;
  }

  .setup-strip {
    gap: 6px;
    padding: 6px 7px;
  }

  .setup-strip-label {
    min-height: 23px;
    padding: 3px 6px;
    font-size: 9px;
  }

  .setup-strip-chips {
    gap: 4px;
  }

  .setup-chip {
    min-height: 23px;
    min-width: 32px;
    gap: 4px;
    padding: 3px 5px;
  }

  .setup-chip-index {
    font-size: 8px;
  }

  .setup-chip-token {
    font-size: 11px;
  }

  .move-group {
    gap: 6px;
    padding: 7px;
    border-left-width: 3px;
  }

  .move-group-marker {
    gap: 6px;
  }

  .move-group-name {
    font-size: 9px;
  }

  .move-group-range {
    padding: 2px 5px;
    font-size: 9px;
  }

  .move-group-chips {
    gap: 5px;
  }

  .move-chip {
    min-width: 46px;
    height: 43px;
    padding: 13px 8px 5px;
    font-size: 15px;
  }

  .move-chip-index {
    top: 5px;
    left: 6px;
    font-size: 8.5px;
  }

  .move-chip.phrase-chip {
    min-width: 126px;
    padding: 13px 10px 5px;
  }

  .phrase-main {
    gap: 6px;
  }

  .phrase-relation {
    padding: 2px 4px;
    font-size: 8px;
  }
}

@media (max-width: 900px) {
  .recognition-page { overflow-y: auto; }
  .recognition-topbar { position: sticky; top: 0; z-index: 2; }
  .recognition-set, .recognition-session span, .recognition-theme-toggle { display: none; }
  .recognition-main {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    gap: 18px;
    padding: 20px 16px;
  }
  .recognition-stage { min-height: 470px; }
  .recognition-panel { border: 0; }
  .recognition-feedback {
    position: relative;
    z-index: 1;
    grid-template-columns: 1fr 1fr;
    row-gap: 18px;
    scroll-margin-top: 76px;
    background: var(--panel);
    box-shadow: 0 14px 38px rgba(25, 28, 24, 0.12);
    opacity: 1;
    isolation: isolate;
  }
  .recognition-feedback > div:nth-child(2) { border-right: 0; }
  .recognition-feedback > div:nth-child(3),
  .recognition-feedback > div:nth-child(4) { padding-top: 18px; border-top: 1px solid var(--line); }
}

@media (max-width: 560px) {
  .recognition-topbar { min-height: 60px; padding: 8px 10px; }
  .recognition-identity { gap: 7px; }
  .recognition-identity h1 { font-size: 15px; }
  .recognition-actions .button { height: 34px; padding: 0 8px; font-size: 10px; }
  .recognition-guide-button { display: none; }
  .recognition-main { padding: 16px 12px 24px; }
  .recognition-stage { min-height: 390px; }
  .recognition-prompt h2 { font-size: 25px; }
  .recognition-cube-mount { min-height: 230px; }
  .recognition-score strong { font-size: 20px; }
  .recognition-answers { grid-template-columns: 1fr; }
  .recognition-answer { min-height: 58px; }
  .recognition-feedback {
    grid-template-columns: 1fr;
    padding: 18px 16px;
    border-color: color-mix(in srgb, var(--done) 42%, var(--line));
    border-radius: 12px;
  }
  .recognition-feedback > div { padding: 16px 0; border-right: 0; border-top: 1px solid var(--line); }
  .recognition-feedback > div:first-child { padding-top: 0; border-top: 0; }
}

@media (max-width: 520px) {
  .identity p {
    display: none;
  }

  .topbar {
    padding: 9px 10px;
  }

  .case-panel {
    padding: 8px 10px 10px;
  }

  .panel-header {
    font-size: 12px;
  }

  .search {
    height: 34px;
  }

  .case-button {
    min-height: 76px;
    flex-basis: 176px;
    grid-template-columns: 58px minmax(0, 1fr);
    padding: 5px 7px;
  }

  .case-diagram,
  .pll-diagram {
    width: 58px;
    height: 48px;
  }

  .case-button strong {
    font-size: 13px;
  }

  .case-copy span {
    font-size: 10.5px;
  }

  .cube-mount {
    height: clamp(252px, 34svh, 310px);
    min-height: 252px;
  }

  .stage-header h2 {
    font-size: 22px;
  }

  .playback-controls {
    gap: 5px;
  }

  .playback-button {
    width: 30px;
    height: 30px;
    min-width: 30px;
  }

  .playback-button-primary {
    width: 34px;
    min-width: 34px;
  }

  .top-speed-control {
    min-width: 138px;
  }

}