:root {
  --bg: #0b1210;
  --bg-elev: #121c18;
  --ink: #e8f2ec;
  --muted: #8aa396;
  --line: rgba(232, 242, 236, 0.1);
  --accent: #6dffb0;
  --accent-dim: rgba(109, 255, 176, 0.14);
  --warn: #ffc857;
  --danger: #ff6b6b;
  --white: #f7f7f7;
  --yellow: #ffd500;
  --red: #c41e3a;
  --orange: #ff6a00;
  --blue: #0b5fbf;
  --green: #0b9e4a;
  --timer-cross: color-mix(in srgb, var(--blue) 52%, #ffffff);
  --timer-f2l: var(--orange);
  --plastic: #111111;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --radius: 18px;
  --font-display: "Syne", system-ui, sans-serif;
  --font-body: "Figtree", system-ui, sans-serif;
}

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

html,
body {
  margin: 0;
  height: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.45;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  height: 100dvh;
}

[hidden] {
  display: none !important;
}

.panel-body[hidden] {
  display: none !important;
}


.ambient {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 70% 50% at 15% 10%, rgba(109, 255, 176, 0.12), transparent 55%),
    radial-gradient(ellipse 55% 45% at 90% 20%, rgba(61, 126, 166, 0.18), transparent 50%),
    radial-gradient(ellipse 50% 40% at 70% 90%, rgba(244, 213, 71, 0.08), transparent 55%),
    linear-gradient(180deg, #0d1613 0%, #0b1210 45%, #0a100e 100%);
}

.ambient::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.45'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
}

.pop-flash {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ff2a2a;
  opacity: 0;
}

.pop-flash-label {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 9vw, 4.5rem);
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.08em;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.55);
}

.topbar,
.layout,
.foot {
  position: relative;
  z-index: 1;
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem 1rem;
  padding: 1.25rem clamp(1rem, 3vw, 2rem) 0.5rem;
  flex-shrink: 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: inherit;
}

.brand-mark {
  width: 0.85rem;
  height: 0.85rem;
  border-radius: 3px;
  background: linear-gradient(135deg, #f7f7f7 0 50%, #ffd500 50% 100%);
  box-shadow: 0 0 0 3px rgba(109, 255, 176, 0.2);
  animation: mark-pulse 3.2s ease-in-out infinite;
}

@keyframes mark-pulse {
  0%,
  100% {
    transform: rotate(0deg) scale(1);
  }
  50% {
    transform: rotate(8deg) scale(1.06);
  }
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  letter-spacing: 0.04em;
}

.brand-tag {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  margin-left: auto;
  padding: 0.2rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(8, 14, 12, 0.55);
}

.site-nav-link {
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
}

.site-nav-link.is-active {
  background: var(--accent-dim);
  color: var(--accent);
}

.method-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.2rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(8, 14, 12, 0.55);
}

.method-btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  cursor: pointer;
}

.method-btn.is-active {
  background: rgba(232, 244, 236, 0.12);
  color: var(--text, var(--ink));
}

.look-switch {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.2rem;
  margin: 0 0 0.75rem;
  padding: 0.2rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(8, 14, 12, 0.55);
  width: fit-content;
  max-width: 100%;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: clamp(1rem, 3vw, 2rem);
  padding: 0.75rem clamp(1rem, 3vw, 2rem) 1rem;
  align-items: stretch;
  max-width: 1320px;
  margin: 0 auto;
  flex: 1;
  min-height: 0;
  width: 100%;
  overflow: hidden;
}

.stage {
  position: relative;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 6px);
  background: linear-gradient(165deg, rgba(18, 28, 24, 0.92), rgba(11, 18, 16, 0.75));
  box-shadow: var(--shadow);
  padding: 1rem 0.85rem 1.15rem;
  overflow: hidden;
  min-height: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.stage-glow {
  position: absolute;
  width: min(420px, 55vw);
  height: min(420px, 55vw);
  left: 40%;
  top: 20%;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(109, 255, 176, 0.18), transparent 70%);
  filter: blur(8px);
  pointer-events: none;
  animation: glow-breathe 5s ease-in-out infinite;
}

@keyframes glow-breathe {
  0%,
  100% {
    opacity: 0.7;
    transform: translateX(-50%) scale(1);
  }
  50% {
    opacity: 1;
    transform: translateX(-50%) scale(1.12);
  }
}

.stage-main {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.65rem;
  align-items: stretch;
  min-height: 0;
}

.cube-wrap {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: center;
  gap: 0.4rem;
  min-height: 0;
  height: 100%;
  padding: 0.25rem;
  touch-action: none;
}

.flick-toast {
  position: absolute;
  top: 0.45rem;
  left: 50%;
  z-index: 5;
  margin: 0;
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
  background: rgba(11, 18, 16, 0.78);
  color: var(--accent);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  line-height: 1.2;
  pointer-events: none;
  opacity: 0;
  transform: translateX(-50%) translateY(-6px);
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.flick-toast.is-on {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.orbit-hint {
  margin: 0;
  font-size: 0.78rem;
  color: var(--muted);
  text-align: center;
  pointer-events: none;
  flex-shrink: 0;
}

.f2l-case-overlay {
  position: absolute;
  left: 0.45rem;
  top: 0.4rem;
  z-index: 4;
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  padding: 0.22rem 0.55rem 0.28rem 0.5rem;
  border-radius: 12px;
  background: rgba(11, 18, 16, 0.72);
  pointer-events: none;
}

.f2l-case-overlay[hidden] {
  display: none;
}

.f2l-case-overlay strong {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1;
  color: var(--accent);
}

.f2l-case-overlay span {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--muted);
}

/* Old CSS3 cubie mesh (unused when ERNO is mounted) */
.cube-scene {
  display: none;
}

.cubie {
  position: absolute;
  transform-style: preserve-3d;
}

.cubie-plastic {
  position: absolute;
  inset: 0;
  background: #111111;
  backface-visibility: hidden;
}

.cubie-plastic-U {
  transform: rotateX(90deg) translateZ(var(--z, 32px));
}
.cubie-plastic-D {
  transform: rotateX(-90deg) translateZ(var(--z, 32px));
}
.cubie-plastic-F {
  transform: translateZ(var(--z, 32px));
}
.cubie-plastic-B {
  transform: rotateY(180deg) translateZ(var(--z, 32px));
}
.cubie-plastic-R {
  transform: rotateY(90deg) translateZ(var(--z, 32px));
}
.cubie-plastic-L {
  transform: rotateY(-90deg) translateZ(var(--z, 32px));
}

.cubie-sticker {
  position: absolute;
  inset: 9px;
  border-radius: 5px;
  border: 1px solid rgba(0, 0, 0, 0.45);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.28);
  backface-visibility: hidden;
  cursor: grab;
  touch-action: none;
}

.cubie-sticker:active {
  cursor: grabbing;
}

.cubie-sticker-U {
  transform: rotateX(90deg) translateZ(var(--z, 32px));
}
.cubie-sticker-D {
  transform: rotateX(-90deg) translateZ(var(--z, 32px));
}
.cubie-sticker-F {
  transform: translateZ(var(--z, 32px));
}
.cubie-sticker-B {
  transform: rotateY(180deg) translateZ(var(--z, 32px));
}
.cubie-sticker-R {
  transform: rotateY(90deg) translateZ(var(--z, 32px));
}
.cubie-sticker-L {
  transform: rotateY(-90deg) translateZ(var(--z, 32px));
}

.turn-group {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  pointer-events: none;
}

.move-pad {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  align-items: stretch;
  justify-content: center;
  width: auto;
  margin: 0;
  padding: 0.15rem 0.1rem;
  flex-shrink: 0;
}

.stage-main.move-pad-hidden {
  grid-template-columns: minmax(0, 1fr);
}

.stage-main.move-pad-hidden .move-pad {
  display: none;
}

.solve-timer {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 0.55rem 0.75rem 0.65rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}

.scramble-card {
  width: 100%;
}

.scramble-card[hidden] {
  display: none !important;
}

.scramble-card-hit {
  appearance: none;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.28rem;
  width: 100%;
  margin: 0;
  padding: 0.55rem 0.75rem 0.65rem;
  border-radius: 14px;
  border: 1px dashed rgba(232, 244, 236, 0.22);
  background: rgba(8, 14, 12, 0.45);
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.scramble-card.has-scramble .scramble-card-hit {
  border-style: solid;
  border-color: rgba(255, 200, 87, 0.4);
  background: rgba(255, 200, 87, 0.06);
}

.scramble-card-kicker {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--muted);
}

.scramble-card-alg {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: clamp(1.05rem, 3.2vw, 1.35rem);
  font-weight: 700;
  letter-spacing: 0.03em;
  line-height: 1.45;
  color: var(--ink);
  word-break: break-word;
}

.solve-timer[data-phase="armed"] {
  border-color: rgba(255, 200, 87, 0.35);
}

.solve-timer[data-phase="running"] {
  border-color: rgba(109, 255, 176, 0.28);
  background: var(--accent-dim);
}

.solve-timer[data-phase="done"] {
  border-color: rgba(109, 255, 176, 0.4);
}

.solve-timer-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem 1.25rem;
  flex-wrap: wrap;
}

.solve-timer-clock-wrap {
  display: flex;
  align-items: baseline;
  gap: 0.65rem;
}

.solve-timer-label {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--muted);
}

.solve-timer-clock {
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3.2vw, 2.05rem);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  line-height: 1;
}

.solve-timer[data-phase="armed"] .solve-timer-clock {
  color: var(--warn);
}

.solve-timer[data-phase="running"] .solve-timer-clock,
.solve-timer[data-phase="done"] .solve-timer-clock {
  color: var(--accent);
}

.solve-timer-status {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.solve-timer-splits {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.solve-timer-splits li {
  display: inline-flex;
  align-items: baseline;
  gap: 0.3rem;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.2);
  font-size: 0.75rem;
  color: var(--muted);
}

.solve-timer-splits li strong {
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  font-weight: 600;
}

.solve-timer-splits li.is-live {
  border-color: rgba(109, 255, 176, 0.35);
  color: var(--accent);
}

.solve-timer-splits li.is-live strong {
  color: var(--accent);
}

.f2l-case-badge {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  padding: 0.55rem 0.75rem 0.65rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}

.f2l-case-badge[hidden] {
  display: none;
}

.f2l-case-id {
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3.2vw, 2.05rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1;
  color: var(--accent);
}

.f2l-case-hand {
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
}

.step-time {
  display: inline-block;
  margin-left: 0.4rem;
  font-variant-numeric: tabular-nums;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
}

.step.is-done .step-time,
.step.is-current .step-time {
  color: var(--accent);
}

.solve-analysis {
  margin-top: 0.85rem;
  padding: 1rem 1rem 1.05rem;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}

.analysis-hero {
  margin-bottom: 0.95rem;
}

.analysis-kicker {
  margin: 0 0 0.2rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--muted);
}

.analysis-total {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.4vw, 2.2rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.analysis-hero-meta {
  margin: 0.3rem 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.analysis-groups {
  display: grid;
  gap: 0.55rem;
  margin-bottom: 0.95rem;
}

.analysis-group-head {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.88rem;
}

.analysis-group-head strong {
  font-variant-numeric: tabular-nums;
}

.analysis-group-meta {
  display: block;
  margin-top: 0.15rem;
  color: var(--muted);
  font-size: 0.75rem;
}

.analysis-bar-track {
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
  margin-top: 0.28rem;
}

.analysis-bar-fill {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: rgba(232, 242, 236, 0.35);
}

.analysis-bar-fill.is-slowest {
  background: var(--accent);
}

.analysis-rows {
  list-style: none;
  margin: 0 0 0.95rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.analysis-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 0.2rem 0.65rem;
  align-items: baseline;
}

.analysis-row .analysis-bar-track {
  grid-column: 1 / -1;
  margin-top: 0;
}

.analysis-row-name {
  font-size: 0.88rem;
}

.analysis-row-moves,
.analysis-row-time {
  font-size: 0.78rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.analysis-row.is-slowest .analysis-row-name,
.analysis-row.is-slowest .analysis-row-time {
  color: var(--accent);
}

.analysis-insights {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.analysis-insights li + li {
  margin-top: 0.4rem;
}

.analysis-recon {
  margin-top: 0.85rem;
  display: grid;
  gap: 0.55rem;
}

.analysis-recon p {
  margin: 0;
}

.analysis-recon span {
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--muted);
  margin-bottom: 0.2rem;
}

.analysis-recon code {
  display: block;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.78rem;
  line-height: 1.45;
  color: var(--ink);
  word-break: break-word;
}

.analysis-report-wrap {
  display: block;
  margin-top: 0.85rem;
}

.analysis-report-wrap span {
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

.analysis-report-wrap textarea {
  display: block;
  width: 100%;
  min-height: 8.5rem;
  margin: 0;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.25);
  color: var(--ink);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 16px;
  line-height: 1.4;
  resize: vertical;
  -webkit-user-select: text;
  user-select: text;
}

.analysis-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.85rem;
}

.analysis-share-hint {
  margin: 0.45rem 0 0;
  font-size: 0.78rem;
  color: var(--muted);
}

.move-trace {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.45rem 0.75rem;
  justify-content: center;
  min-height: 1.6rem;
  padding: 0.15rem 0.35rem 0.35rem;
  color: var(--muted);
  font-size: 0.82rem;
}

.move-trace-label {
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--muted);
}

.move-trace-alg {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.9rem;
  color: var(--ink);
  background: transparent;
  word-break: break-word;
}

.move-trace-last {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color: var(--accent);
  font-weight: 600;
}

.move-row {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.3rem;
  justify-content: flex-end;
}

.move-row-meta {
  margin-top: 0.25rem;
  padding-top: 0.35rem;
  border-top: 1px solid var(--line);
}

.move-row-meta .move-btn {
  opacity: 0.85;
  font-size: 0.85rem;
  min-width: 2.4rem;
  padding: 0.4rem 0.55rem;
}

.move-btn,
.btn {
  appearance: none;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.55rem 0.95rem;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  transition: background 150ms ease, border-color 150ms ease, transform 120ms ease;
}

.move-btn:hover,
.btn:hover {
  background: var(--accent-dim);
  border-color: rgba(109, 255, 176, 0.35);
}

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

.move-btn {
  min-width: 2.65rem;
  padding: 0.45rem 0.65rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.move-btn.is-flash {
  background: var(--accent-dim);
  border-color: rgba(109, 255, 176, 0.55);
  color: var(--accent);
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

.toolbar.tight {
  justify-content: flex-start;
  margin-top: 0.75rem;
}

.stage-dock {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  flex-shrink: 0;
  min-height: 0;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-primary {
  background: var(--accent);
  color: #062016;
  border-color: transparent;
  font-weight: 700;
}

.btn-primary:hover {
  background: #8affc2;
  border-color: transparent;
}

.btn-ghost {
  background: transparent;
}

.btn-small {
  padding: 0.4rem 0.75rem;
  font-size: 0.88rem;
}

.panel {
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 6px);
  background: rgba(12, 20, 17, 0.82);
  backdrop-filter: blur(10px);
  padding: 1.25rem clamp(1rem, 2vw, 1.4rem) 1.4rem;
  box-shadow: var(--shadow);
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

#btn-hints,
.hints-sheet-bar {
  display: none;
}

.panel-intro h1 {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.6vw, 1.7rem);
  line-height: 1.15;
  margin: 0 0 0.65rem;
  letter-spacing: -0.01em;
}

.panel-intro p {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.mode-tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.35rem;
  margin: 1.15rem 0 1rem;
  padding: 0.3rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
}

.f2l-progress {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.45rem;
  margin-bottom: 0.85rem;
}

.f2l-slot {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  padding: 0.55rem 0.35rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
  color: var(--muted);
  font-weight: 700;
  font-size: 0.85rem;
}

.f2l-slot.is-done,
.f2l-slot.is-live {
  background: var(--accent-dim);
  border-color: rgba(109, 255, 176, 0.35);
  color: var(--accent);
}

.f2l-slot-mark {
  font-size: 1rem;
}

.f2l-tips {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.f2l-tip {
  padding: 0.75rem 0.85rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}

.f2l-tip h3 {
  margin: 0 0 0.25rem;
  font-size: 0.92rem;
}

.f2l-tip p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.ext-link {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.ext-link:hover {
  color: #8affc2;
}

.mode-tab {
  border: 0;
  background: transparent;
  color: var(--muted);
  border-radius: 10px;
  padding: 0.55rem 0.4rem;
  cursor: pointer;
  font-weight: 600;
  touch-action: manipulation;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}

.mode-tab.is-active {
  background: var(--accent-dim);
  color: var(--accent);
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem;
  align-items: start;
  padding: 0.75rem 0.8rem;
  border-radius: 14px;
  border: 1px solid transparent;
  transition: border-color 180ms ease, background 180ms ease;
}

.step.is-current {
  background: var(--accent-dim);
  border-color: rgba(109, 255, 176, 0.28);
  animation: step-in 380ms ease both;
}

.step.is-done {
  opacity: 0.55;
}

@keyframes step-in {
  from {
    opacity: 0.4;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.step-num {
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.8rem;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
}

.step.is-current .step-num {
  background: var(--accent);
  color: #062016;
}

.step.is-done .step-num {
  background: rgba(109, 255, 176, 0.25);
  color: var(--accent);
}

.step h3 {
  margin: 0 0 0.2rem;
  font-size: 0.98rem;
}

.step p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.hint-card {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 16px;
  border: 1px solid rgba(109, 255, 176, 0.25);
  background: linear-gradient(160deg, rgba(109, 255, 176, 0.1), rgba(255, 255, 255, 0.02));
  animation: hint-rise 420ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

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

.hint-kicker {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
}

.hint-title {
  margin: 0.25rem 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
}

.hint-copy,
.hint-note,
.match-help {
  color: var(--muted);
  font-size: 0.92rem;
}

.hint-copy {
  white-space: pre-line;
}

.hint-layout {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-start;
  margin-top: 0.5rem;
}

.hint-diagram {
  flex: 0 0 auto;
}

.hint-text {
  flex: 1 1 12rem;
  min-width: 0;
}

.hint-copy {
  margin: 0;
}

/* Case diagrams (OLL top / PLL sides) */
.case-diagram {
  width: 7.5rem;
  text-align: center;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1.4rem);
  grid-template-rows: repeat(3, 1.4rem);
  gap: 3px;
  padding: 0.45rem;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--line);
  margin: 0 auto;
  width: max-content;
}

.case-cell {
  border-radius: 3px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.case-cell-yellow,
.case-cell-center {
  background: #f5d547;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.15);
}

.case-cell-off {
  background: #2a2a2e;
}

.case-caption {
  margin-top: 0.35rem;
  font-size: 0.68rem;
  line-height: 1.25;
  color: var(--muted);
}

.case-compass {
  display: flex;
  justify-content: space-between;
  font-size: 0.62rem;
  color: rgba(255, 255, 255, 0.35);
  margin-top: 0.15rem;
  padding: 0 0.2rem;
}

.pll-net {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0.45rem;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--line);
}

.pll-face {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3px;
  position: relative;
  padding: 0.35rem 0.3rem 0.55rem;
  border-radius: 6px;
  background: #2a2a2e;
  min-height: 2.2rem;
}

.pll-face em {
  position: absolute;
  bottom: 2px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 0.55rem;
  font-style: normal;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.4);
}

.pll-stick {
  height: 1.1rem;
  border-radius: 2px;
  background: #4a5560;
}

.pll-stick.is-match,
.pll-face.is-hl .pll-stick.is-match {
  background: #6dffb0;
}

.pll-edge-ring {
  position: relative;
  width: 6.5rem;
  height: 6.5rem;
  margin: 0 auto;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--line);
}

.pll-edge {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 700;
  border-radius: 4px;
  background: #2a2a2e;
  color: rgba(255, 255, 255, 0.55);
}

.pll-edge-B {
  top: 0.35rem;
  left: 1.55rem;
  right: 1.55rem;
  height: 1.2rem;
}
.pll-edge-F {
  bottom: 0.35rem;
  left: 1.55rem;
  right: 1.55rem;
  height: 1.2rem;
}
.pll-edge-L {
  left: 0.35rem;
  top: 1.55rem;
  bottom: 1.55rem;
  width: 1.2rem;
}
.pll-edge-R {
  right: 0.35rem;
  top: 1.55rem;
  bottom: 1.55rem;
  width: 1.2rem;
}

.pll-edge.is-bar {
  background: #6dffb0;
  color: #0a1a12;
}
.pll-edge.is-cyc {
  background: #4a7cff;
  color: #fff;
}
.pll-edge.is-opp {
  background: #f5a547;
  color: #1a1008;
}
.pll-edge.is-z {
  background: #c76dff;
  color: #fff;
}

.pll-edge-core {
  position: absolute;
  inset: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  background: #f5d547;
  color: #1a1508;
  font-size: 0.75rem;
  font-weight: 800;
}

.alg-block {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
  margin: 0.85rem 0 0.5rem;
}

.alg {
  display: inline-block;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.55rem 0.8rem;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--line);
  color: var(--ink);
}

.solved-banner {
  margin-top: 1rem;
  padding: 0.95rem 1rem;
  border-radius: 14px;
  background: rgba(109, 255, 176, 0.12);
  border: 1px solid rgba(109, 255, 176, 0.3);
  color: var(--accent);
}

.palette {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0.85rem 0 1rem;
}

.swatch {
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
  padding: 0;
}

.swatch.is-active {
  border-color: var(--ink);
  box-shadow: 0 0 0 2px rgba(232, 242, 236, 0.25);
}

.net {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 72px));
  grid-template-rows: repeat(3, 72px);
  gap: 6px;
  justify-content: start;
}

.net-full {
  grid-template-rows: repeat(3, 72px);
}

.net-face {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 3px;
  padding: 4px;
  background: var(--plastic);
  border-radius: 8px;
}

.net-U {
  grid-column: 2;
  grid-row: 1;
}
.net-L {
  grid-column: 1;
  grid-row: 2;
}
.net-F {
  grid-column: 2;
  grid-row: 2;
}
.net-R {
  grid-column: 3;
  grid-row: 2;
}
.net-B {
  grid-column: 4;
  grid-row: 2;
}
.net-D {
  grid-column: 2;
  grid-row: 3;
}

.inline-alg {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88em;
  padding: 0.1rem 0.35rem;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--line);
}

.net-cell {
  border: 0;
  border-radius: 4px;
  cursor: pointer;
  padding: 0;
  min-width: 0;
}

.net-cell:disabled {
  opacity: 0.35;
  cursor: default;
}

.alg-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.alg-item {
  padding: 0.85rem 0.9rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}

.alg-item h3 {
  margin: 0 0 0.25rem;
  font-size: 0.98rem;
}

.alg-item p {
  margin: 0 0 0.55rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.alg-item .alg {
  font-size: 0.95rem;
}

.foot {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  justify-content: space-between;
  padding: 0 1.25rem max(0.75rem, env(safe-area-inset-bottom));
  color: var(--muted);
  font-size: 0.85rem;
  max-width: 1280px;
  margin: 0 auto;
  flex-shrink: 0;
  width: 100%;
}

kbd {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.78rem;
  padding: 0.12rem 0.35rem;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
}

@media (max-width: 920px) {
  html,
  body {
    overflow: hidden;
    overscroll-behavior: none;
  }

  .layout {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: minmax(0, 1fr);
    gap: 0;
    padding: 0.3rem 0.45rem 0.35rem;
    position: relative;
  }

  .topbar {
    flex-direction: row;
    align-items: baseline;
    padding: 0.35rem 0.55rem 0.1rem;
  }

  .brand-name {
    font-size: 1.05rem;
  }

  .brand-tag {
    font-size: 0.68rem;
  }

  .stage {
    grid-column: 1;
    grid-row: 1;
    min-height: 0;
    height: 100%;
    padding: 0;
    gap: 0;
    z-index: 1;
  }

  .stage-main {
    grid-template-columns: minmax(0, 1fr) auto;
    flex: 1;
    min-height: 0;
    height: 100%;
  }

  .cube-wrap {
    min-height: 0;
    height: 100%;
    padding: 0;
  }

  .orbit-hint,
  .move-trace {
    display: none;
  }

  .flick-toast {
    top: 0.35rem;
    font-size: 1.55rem;
    padding: 0.32rem 0.85rem;
  }

  .f2l-case-overlay {
    top: 0.3rem;
    left: 0.35rem;
  }

  .f2l-case-overlay strong {
    font-size: 1.45rem;
  }

  #erno-container {
    flex: 1;
    height: 100%;
    min-height: 0;
  }

  .stage-dock {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 4;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.35rem 0.45rem;
    padding: 1.1rem 0.5rem calc(0.4rem + env(safe-area-inset-bottom));
    background: linear-gradient(180deg, transparent, rgba(11, 18, 16, 0.9) 42%);
    pointer-events: none;
  }

  .stage-dock .btn,
  .stage-dock .solve-timer,
  .stage-dock .solve-timer-clock,
  .stage-dock .f2l-case-badge,
  .stage-dock .scramble-card,
  .stage-dock .scramble-card-hit {
    pointer-events: auto;
  }

  .solve-timer {
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    gap: 0.25rem;
  }

  .solve-timer-label,
  .solve-timer-status {
    display: none;
  }

  .solve-timer-clock {
    font-size: 1.15rem;
  }

  .scramble-card {
    order: -1;
    flex: 1 0 100%;
  }

  .scramble-card-hit {
    padding: 0.4rem 0.55rem 0.45rem;
  }

  .scramble-card-alg {
    font-size: 1.12rem;
  }

  .f2l-case-badge {
    padding: 0;
    border: 0;
    background: transparent;
    gap: 0.35rem;
  }

  .f2l-case-id {
    font-size: 1.15rem;
  }

  .f2l-case-hand {
    font-size: 0.78rem;
  }

  .solve-timer-splits {
    width: 100%;
    flex-wrap: nowrap;
    overflow-x: auto;
  }

  .toolbar {
    flex: 1;
    justify-content: flex-end;
    gap: 0.3rem;
  }

  .toolbar .btn {
    padding: 0.4rem 0.65rem;
    font-size: 0.82rem;
  }

  #btn-hints {
    display: inline-block;
  }

  .panel {
    grid-column: 1;
    grid-row: 1;
    align-self: end;
    justify-self: stretch;
    z-index: 5;
    height: min(48dvh, 440px);
    max-height: calc(100% - 3.5rem);
    margin: 0 0.05rem 0.1rem;
    padding: 0.55rem 0.75rem 0.85rem;
    touch-action: pan-y;
    transform: translate3d(0, calc(100% + 1.5rem), 0);
    visibility: hidden;
    pointer-events: none;
    transition: transform 0.28s ease, visibility 0.28s;
  }

  body.hints-open .panel {
    transform: translate3d(0, 0, 0);
    visibility: visible;
    pointer-events: auto;
  }

  .hints-sheet-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    position: sticky;
    top: -0.55rem;
    z-index: 1;
    margin: -0.15rem 0 0.45rem;
    padding: 0.7rem 0 0.45rem;
    border-bottom: 1px solid var(--line);
    background: rgba(12, 20, 17, 0.94);
  }

  .hints-sheet-bar::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 0.28rem;
    width: 2.25rem;
    height: 3px;
    border-radius: 99px;
    background: rgba(232, 242, 236, 0.22);
    transform: translateX(-50%);
  }

  .hints-sheet-label {
    font-weight: 700;
    font-size: 0.82rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--muted);
  }

  .hints-sheet-close {
    padding: 0.35rem 0.7rem;
    font-size: 0.82rem;
  }

  .panel-intro h1 {
    font-size: 1.05rem;
    margin-bottom: 0.3rem;
  }

  .panel-intro p {
    font-size: 0.82rem;
  }

  .mode-tabs {
    margin: 0.55rem 0 0.55rem;
    padding: 0.2rem;
    gap: 0.22rem;
  }

  .mode-tab {
    padding: 0.4rem 0.22rem;
    font-size: 0.78rem;
  }

  .cube-scene {
    width: 200px;
    height: 200px;
  }

  .net,
  .net-full {
    grid-template-columns: repeat(4, minmax(0, 58px));
    grid-template-rows: repeat(3, 58px);
  }

  .foot {
    display: none;
  }
}

@media (max-width: 520px) {
  .stage-main {
    grid-template-columns: 1fr;
  }

  .move-pad {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.3rem;
  }

  .move-row-meta {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
    width: 100%;
    justify-content: center;
  }

  .cube-wrap {
    min-height: 0;
  }

  #erno-container {
    height: 100%;
    min-height: 0;
  }

  .panel-intro p {
    display: none;
  }
}

html:has(body.timer-page),
body.timer-page {
  overflow: auto;
  height: auto;
  min-height: 100dvh;
}

body.timer-page .topbar {
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
}

.timer-page-main {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: clamp(1rem, 3vw, 2rem);
  padding: 0.75rem clamp(1rem, 3vw, 2rem) 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
  flex: 1;
}

.timer-stage,
.timer-side {
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 6px);
  background: linear-gradient(165deg, rgba(18, 28, 24, 0.92), rgba(11, 18, 16, 0.75));
  box-shadow: var(--shadow);
  padding: 1.15rem 1rem 1.25rem;
}

.timer-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  text-align: center;
  min-height: 28rem;
}

.timer-side {
  min-height: 0;
}

.practice-scramble-kicker {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.practice-scramble {
  appearance: none;
  display: block;
  max-width: 36rem;
  width: 100%;
  margin: 0;
  padding: 0.75rem 1rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(8, 14, 12, 0.55);
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: clamp(0.82rem, 1.7vw, 1.05rem);
  line-height: 1.5;
  white-space: normal;
  overflow-wrap: break-word;
  text-align: center;
  cursor: pointer;
  touch-action: manipulation;
}

.practice-scramble:hover,
.practice-scramble:focus-visible {
  border-color: rgba(109, 255, 176, 0.45);
  outline: none;
}

.practice-clock {
  appearance: none;
  border: 1px solid var(--line);
  background: rgba(8, 14, 12, 0.65);
  color: inherit;
  border-radius: 22px;
  width: min(100%, 28rem);
  min-height: 7.5rem;
  cursor: pointer;
  padding: 1.1rem 1.25rem;
  touch-action: manipulation;
}

.practice-clock:hover,
.practice-clock:focus-visible {
  border-color: rgba(109, 255, 176, 0.45);
  outline: none;
}

.practice-clock[data-phase="inspecting"] {
  border-color: rgba(255, 200, 87, 0.55);
  color: var(--warn);
}

.practice-clock[data-phase="running"] {
  border-color: rgba(109, 255, 176, 0.55);
  color: var(--accent);
}

.practice-clock.is-best {
  border-color: color-mix(in srgb, var(--warn) 72%, transparent);
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--warn) 28%, transparent),
    0 16px 36px color-mix(in srgb, var(--warn) 16%, transparent);
}

.practice-clock.is-best:hover,
.practice-clock.is-best:focus-visible {
  border-color: color-mix(in srgb, var(--warn) 88%, transparent);
}

.practice-clock.is-best .practice-clock-value {
  color: var(--warn);
}

.practice-clock.is-best::after {
  content: "Best";
  display: block;
  margin-top: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--warn);
}

.practice-clock-value {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 4.6rem);
  font-weight: 800;
  letter-spacing: 0.04em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.practice-colon {
  margin: 0 0.06em;
  opacity: 0.4;
}

.practice-centi {
  font-size: 0.48em;
  margin-left: 0.12em;
  opacity: 0.72;
}

.practice-status {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.timer-mode {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.2rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(8, 14, 12, 0.55);
}

.timer-mode-btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  cursor: pointer;
}

.timer-mode-btn.is-active {
  background: var(--accent-dim);
  color: var(--accent);
}

.timer-mode-btn:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.practice-splits {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem;
  width: min(100%, 28rem);
}

.practice-splits li {
  display: inline-flex;
  align-items: baseline;
  gap: 0.35rem;
  min-width: 5.6rem;
  justify-content: space-between;
  padding: 0.32rem 0.65rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.2);
  font-size: 0.78rem;
  color: var(--muted);
}

.practice-splits li strong {
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  font-weight: 600;
}

.practice-splits li.is-live {
  border-color: rgba(109, 255, 176, 0.4);
  color: var(--accent);
}

.practice-splits li.is-live strong {
  color: var(--accent);
}

.practice-splits li.is-done strong {
  color: var(--ink);
}

.practice-splits li.split-cross:not(.is-live) strong {
  color: var(--timer-cross);
}

.practice-splits li.split-f2l:not(.is-live) strong {
  color: var(--timer-f2l);
}

.practice-splits li.split-cross.is-best {
  border-color: color-mix(in srgb, var(--blue) 55%, transparent);
  background: color-mix(in srgb, var(--blue) 18%, transparent);
}

.practice-splits li.split-f2l.is-best {
  border-color: color-mix(in srgb, var(--orange) 55%, transparent);
  background: color-mix(in srgb, var(--orange) 16%, transparent);
}

.timer-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 0.85rem;
  margin-bottom: 0.85rem;
}

.timer-toolbar .btn {
  margin-left: auto;
}

.timer-inspect,
.timer-chart-window {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 600;
}

.timer-inspect select,
.timer-chart-window select {
  appearance: none;
  border: 1px solid var(--line);
  background: rgba(8, 14, 12, 0.7);
  color: var(--ink);
  border-radius: 8px;
  padding: 0.28rem 0.55rem;
  font: inherit;
}

.timer-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.45rem;
  margin-bottom: 0.9rem;
}

.timer-stat {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.45rem 0.6rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
  font-size: 0.82rem;
  color: var(--muted);
}

.timer-stat strong {
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.timer-stat-best {
  border-color: color-mix(in srgb, var(--warn) 45%, var(--line));
  background: color-mix(in srgb, var(--warn) 10%, transparent);
}

.timer-stat-best strong {
  color: var(--warn);
}

.timer-stat-cross {
  border-color: color-mix(in srgb, var(--blue) 50%, var(--line));
  background: color-mix(in srgb, var(--blue) 20%, transparent);
}

.timer-stat-cross strong {
  color: var(--timer-cross);
}

.timer-stat-f2l {
  border-color: color-mix(in srgb, var(--orange) 55%, var(--line));
  background: color-mix(in srgb, var(--orange) 14%, transparent);
}

.timer-stat-f2l strong {
  color: var(--timer-f2l);
}

.timer-chart {
  margin: 0 0 1rem;
  padding: 0.65rem 0.45rem 0.4rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(8, 14, 12, 0.4);
}

.timer-chart-frame {
  position: relative;
}

.timer-chart-enlarge {
  position: absolute;
  top: 0.15rem;
  right: 0.15rem;
  z-index: 2;
  padding: 0.28rem 0.65rem;
  font-size: 0.78rem;
}

.timer-chart-svg {
  display: block;
  width: 100%;
  height: auto;
  cursor: crosshair;
}

.timer-chart-svg text,
.timer-chart-svg path,
.timer-chart-svg circle,
.timer-chart-svg line {
  pointer-events: none;
}

.timer-chart-tooltip {
  position: absolute;
  z-index: 3;
  min-width: 8.5rem;
  padding: 0.45rem 0.55rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(10, 18, 15, 0.96);
  box-shadow: var(--shadow);
  color: var(--ink);
  font-size: 0.78rem;
  pointer-events: none;
}

.timer-chart-tip-solve {
  margin-bottom: 0.28rem;
  color: var(--muted);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.68rem;
}

.timer-chart-tip-row {
  display: flex;
  justify-content: space-between;
  gap: 0.85rem;
  font-variant-numeric: tabular-nums;
}

.timer-chart-tip-row span {
  color: var(--muted);
}

.timer-chart-tip-row.tip-cross span,
.timer-chart-tip-row.tip-cross strong {
  color: var(--timer-cross);
}

.timer-chart-tip-row.tip-f2l span,
.timer-chart-tip-row.tip-f2l strong {
  color: var(--timer-f2l);
}

.timer-chart-guide {
  stroke: rgba(232, 242, 236, 0.45);
  stroke-width: 1;
  stroke-dasharray: 3 3;
}

.timer-chart-hover-single {
  fill: var(--ink);
  stroke: rgba(11, 18, 16, 0.9);
  stroke-width: 1.5;
}

.timer-chart-hover-cross {
  fill: var(--timer-cross);
  stroke: rgba(11, 18, 16, 0.9);
  stroke-width: 1.5;
}

.timer-chart-hover-f2l {
  fill: var(--timer-f2l);
  stroke: rgba(11, 18, 16, 0.9);
  stroke-width: 1.5;
}

.timer-chart-dialog {
  width: min(96vw, 1100px);
  max-height: min(92vh, 760px);
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #0e1714;
  color: var(--ink);
  box-shadow: var(--shadow);
}

.timer-chart-dialog::backdrop {
  background: rgba(4, 8, 7, 0.72);
}

.timer-chart-dialog-panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: 0.85rem 1rem 1rem;
}

.timer-chart-dialog-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.timer-chart-dialog-head h2 {
  margin: 0;
  font-size: 1rem;
}

.timer-chart-dialog-hint {
  margin: 0.2rem 0 0.65rem;
  color: var(--muted);
  font-size: 0.82rem;
}

.timer-chart-is-enlarged {
  margin: 0;
  padding: 0.35rem 0.15rem 0.2rem;
  flex: 1;
  min-height: 0;
}

.timer-chart-is-enlarged .timer-chart-svg {
  max-height: min(62vh, 520px);
}

.timer-chart-empty {
  margin: 0;
  padding: 1.1rem 0.8rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.88rem;
}

.timer-chart-grid {
  stroke: rgba(232, 242, 236, 0.08);
  stroke-width: 1;
}

.timer-chart-label,
.timer-chart-axis {
  fill: var(--muted);
  font-size: 10px;
  text-anchor: end;
}

.timer-chart-axis-end {
  text-anchor: end;
}

.timer-chart-singles {
  stroke: rgba(232, 242, 236, 0.28);
  stroke-width: 1.5;
}

.timer-chart-ao5 {
  stroke: var(--accent);
  stroke-width: 2;
}

.timer-chart-ao12 {
  stroke: var(--warn);
  stroke-width: 2;
}

.timer-chart-cross {
  stroke: var(--timer-cross);
  stroke-width: 1.75;
}

.timer-chart-f2l {
  stroke: var(--timer-f2l);
  stroke-width: 1.75;
}

.timer-chart-cross-avg {
  stroke: var(--timer-cross);
  stroke-width: 2.15;
  stroke-dasharray: 7 5;
  stroke-linecap: round;
}

.timer-chart-f2l-avg {
  stroke: var(--timer-f2l);
  stroke-width: 2.15;
  stroke-dasharray: 7 5;
  stroke-linecap: round;
}

.timer-chart-dot {
  fill: var(--ink);
}

.timer-chart-dot-cross {
  fill: var(--timer-cross);
}

.timer-chart-dot-f2l {
  fill: var(--timer-f2l);
}

.timer-chart-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.35rem 1rem;
  margin: 0.15rem 0 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 0.75rem;
}

.timer-chart-legend .swatch {
  display: inline-block;
  width: 0.7rem;
  height: 3px;
  margin-right: 0.3rem;
  vertical-align: middle;
  border-radius: 99px;
}

.swatch-single {
  background: rgba(232, 242, 236, 0.45);
}

.swatch-ao5 {
  background: var(--accent);
}

.swatch-ao12 {
  background: var(--warn);
}

.swatch-cross {
  background: var(--timer-cross);
}

.swatch-f2l {
  background: var(--timer-f2l);
}

.swatch-cross-avg,
.swatch-f2l-avg {
  height: 0;
  background: transparent;
  border-radius: 0;
  border-top: 2px dashed currentColor;
}

.swatch-cross-avg {
  color: var(--timer-cross);
}

.swatch-f2l-avg {
  color: var(--timer-f2l);
}

.timer-times-title {
  margin: 0 0 0.45rem;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

.timer-times-empty {
  margin: 0;
  padding: 1.2rem 0.6rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
  border: 1px dashed var(--line);
  border-radius: 12px;
}

.timer-times-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  max-height: 16rem;
  overflow-y: auto;
}

.timer-times-list li {
  display: flex;
  flex-direction: column;
  gap: 0.28rem;
  padding: 0.5rem 0.2rem;
  border-bottom: 1px solid var(--line);
  font-variant-numeric: tabular-nums;
}

.timer-time-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.55rem;
}

.timer-time-index {
  color: var(--muted);
  font-size: 0.78rem;
}

.timer-time-ms.is-best {
  color: var(--warn);
  font-weight: 800;
}

.timer-time-splits .split-cross {
  color: var(--timer-cross);
}

.timer-time-splits .split-f2l {
  color: var(--timer-f2l);
}

.timer-time-splits .is-best {
  font-weight: 700;
}

.timer-time-scramble {
  display: block;
  margin: 0 0 0 1.5rem;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.72rem;
  line-height: 1.35;
  white-space: normal;
  overflow-wrap: anywhere;
}

.timer-time-delete {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
  padding: 0.15rem 0.35rem;
}

.timer-time-delete:hover {
  color: var(--danger);
}

.timer-time-splits {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.75rem;
  margin: 0 0 0 1.5rem;
  color: var(--muted);
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
}

.timer-time-splits em {
  font-style: normal;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-size: 0.68rem;
  margin-right: 0.2rem;
}

.timer-split-stats {
  margin: 0 0 0.9rem;
}

.timer-split-stats:empty {
  display: none;
}

.timer-split-count {
  margin: 0 0 0.55rem;
  color: var(--muted);
  font-size: 0.78rem;
}

.timer-split-avg {
  display: grid;
  grid-template-columns: 6.2rem minmax(0, 1fr) auto;
  grid-template-areas:
    "name track time"
    "name track best";
  align-items: center;
  column-gap: 0.65rem;
  row-gap: 0.1rem;
  margin-bottom: 0.55rem;
}

.timer-split-avg-name {
  grid-area: name;
  font-size: 0.82rem;
  color: var(--muted);
}

.timer-split-avg-track {
  grid-area: track;
  height: 0.45rem;
  border-radius: 99px;
  background: rgba(232, 242, 236, 0.08);
  overflow: hidden;
}

.timer-split-avg-fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: rgba(109, 255, 176, 0.45);
}

.timer-split-avg.is-slowest .timer-split-avg-name {
  color: var(--warn);
  font-weight: 700;
}

.timer-split-avg.is-slowest .timer-split-avg-fill {
  background: var(--warn);
}

.timer-split-avg-cross .timer-split-avg-name,
.timer-split-avg-cross.is-slowest .timer-split-avg-name,
.timer-split-avg-cross strong,
.timer-split-avg-cross .timer-split-avg-best {
  color: var(--timer-cross);
}

.timer-split-avg-cross .timer-split-avg-fill,
.timer-split-avg-cross.is-slowest .timer-split-avg-fill {
  background: var(--timer-cross);
}

.timer-split-avg-f2l .timer-split-avg-name,
.timer-split-avg-f2l.is-slowest .timer-split-avg-name,
.timer-split-avg-f2l strong,
.timer-split-avg-f2l .timer-split-avg-best {
  color: var(--timer-f2l);
}

.timer-split-avg-f2l .timer-split-avg-fill,
.timer-split-avg-f2l.is-slowest .timer-split-avg-fill {
  background: var(--timer-f2l);
}

.timer-split-avg strong {
  grid-area: time;
  font-variant-numeric: tabular-nums;
  font-size: 0.88rem;
}

.timer-split-avg-best {
  grid-area: best;
  font-size: 0.7rem;
  color: var(--muted);
  text-align: right;
}

.timer-split-tip {
  margin: 0.15rem 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

@media (max-width: 920px) {
  html:has(body.timer-page),
  body.timer-page {
    overflow: auto;
    height: auto;
    min-height: 100dvh;
  }

  .timer-page-main {
    grid-template-columns: 1fr;
    padding: 0.45rem 0.7rem 1.25rem;
  }

  .timer-stage {
    min-height: 22rem;
  }

  .practice-clock {
    min-height: 6.2rem;
  }

  body.timer-page .foot {
    display: flex;
    justify-content: center;
    gap: 1rem;
    padding-bottom: calc(0.8rem + env(safe-area-inset-bottom));
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}