:root {
  --bg: #0a0a0f;
  --surface: #12121a;
  --surface2: #1a1a28;
  --border: #2a2a3d;
  --accent: #7c3aed;
  --accent2: #06b6d4;
  --accent3: #f59e0b;
  --text: #e8e8f0;
  --text2: #7c7c9a;
  --green: #10b981;
  --red: #ef4444;
  --yellow: #facc15;
  --orange: #f97316;
  --blue: #3b82f6;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Syne', sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse at 20% 10%, rgba(124, 58, 237, .08) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 90%, rgba(6, 182, 212, .06) 0%, transparent 55%);
}

/* ── HEADER ── */
header {
  padding: 11px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  position: relative;
  z-index: 10;
  gap: 8px;
  flex-wrap: wrap;
}

.logo {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -.5px;
  flex-shrink: 0;
}
.logo span { color: var(--accent); }
.logo em   { color: var(--accent2); font-style: normal; }

.mode-selector { display: flex; gap: 5px; flex-wrap: wrap; }

.mode-btn {
  font-family: 'Space Mono', monospace;
  font-size: .56rem;
  padding: 5px 11px;
  border-radius: 6px;
  border: 1.5px solid var(--border);
  background: transparent;
  color: var(--text2);
  cursor: pointer;
  transition: all .15s;
  letter-spacing: 1px;
  text-transform: uppercase;
  touch-action: manipulation;
}
.mode-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(124, 58, 237, .12);
}
.mode-btn:hover:not(.active) {
  border-color: var(--text2);
  color: var(--text);
}

.header-right { display: flex; gap: 7px; align-items: center; flex-wrap: wrap; }

.icon-btn {
  font-size: .8rem;
  padding: 5px 10px;
  border-radius: 6px;
  border: 1.5px solid var(--border);
  background: transparent;
  color: var(--text2);
  cursor: pointer;
  transition: all .15s;
  touch-action: manipulation;
}
.icon-btn:hover { border-color: var(--text2); color: var(--text); }

/* ── LAYOUT ── */
.main-grid {
  display: grid;
  grid-template-columns: 1fr 345px;
  gap: 16px;
  padding: 16px 22px;
  position: relative;
  z-index: 1;
  max-width: 1380px;
  margin: 0 auto;
}
.right-col { display: flex; flex-direction: column; gap: 14px; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
}
.timer-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 22px 18px;
}

/* ── ALG INFO CARDS ── */
.alg-info-row {
  display: flex;
  gap: 9px;
  width: 100%;
  justify-content: center;
  flex-wrap: wrap;
}
.alg-card {
  background: var(--surface2);
  border-radius: 12px;
  padding: 12px 16px;
  flex: 1;
  min-width: 150px;
  max-width: 280px;
  text-align: center;
  border: 1.5px solid var(--border);
}
.alg-card.oll-card { border-color: rgba(124, 58, 237, .55); }
.alg-card.pll-card { border-color: rgba(6, 182, 212, .55); }

.alg-card-phase {
  font-family: 'Space Mono', monospace;
  font-size: .52rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.oll-card .alg-card-phase { color: var(--accent); }
.pll-card .alg-card-phase { color: var(--accent2); }

.alg-card-name {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1.1;
  margin-bottom: 2px;
}
.alg-card-group {
  font-family: 'Space Mono', monospace;
  font-size: .6rem;
  color: var(--text2);
  margin-bottom: 4px;
}
.auf-tag {
  display: inline-block;
  font-family: 'Space Mono', monospace;
  font-size: .56rem;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(245, 158, 11, .12);
  color: var(--accent3);
  border: 1px solid rgba(245, 158, 11, .28);
  margin-top: 2px;
}
.alg-card-moves {
  font-family: 'Space Mono', monospace;
  font-size: .62rem;
  color: var(--text2);
  line-height: 1.6;
  word-break: break-word;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
  display: none;
  text-align: left;
}
.alg-card-moves.visible { display: block; }

/* ── CUBE ── */
.cube-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: 100%;
}
#cubeCanvas {
  display: block;
  border-radius: 8px;
  width: 280px;
  height: 280px;
  image-rendering: auto;
}
.scramble-pill {
  font-family: 'Space Mono', monospace;
  font-size: .68rem;
  color: var(--accent3);
  background: rgba(245, 158, 11, .06);
  border: 1px solid rgba(245, 158, 11, .18);
  border-radius: 8px;
  padding: 7px 12px;
  width: 100%;
  text-align: center;
  word-break: break-word;
  line-height: 1.65;
}

/* ── TIMER ── */
.touch-zone {
  width: 100%;
  min-height: 100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-radius: 12px;
  border: 2px dashed var(--border);
  cursor: pointer;
  transition: border-color .15s, background .15s;
  user-select: none;
  -webkit-user-select: none;
  padding: 14px;
  touch-action: manipulation;
}
.touch-zone.holding { border-color: rgba(16, 185, 129, .45); background: rgba(16, 185, 129, .04); }
.touch-zone.ready   { border-color: var(--green);            background: rgba(16, 185, 129, .08); }
.touch-zone.running { border-color: var(--accent2);          background: rgba(6, 182, 212, .05);  }
.touch-zone.done    { border-color: var(--accent3);          background: rgba(245, 158, 11, .05); }

.timer-display {
  font-family: 'Space Mono', monospace;
  font-size: 4.2rem;
  font-weight: 700;
  letter-spacing: -2px;
  color: var(--text);
  transition: color .18s;
  user-select: none;
  line-height: 1;
  pointer-events: none;
}
.timer-display.ready   { color: var(--green);   }
.timer-display.running { color: var(--accent2); }
.timer-display.done    { color: var(--accent3); }

.space-bar {
  width: 52px;
  height: 5px;
  border-radius: 999px;
  border: 1.5px solid var(--border);
  background: transparent;
  transition: all .1s;
  pointer-events: none;
}
.space-bar.held { background: var(--green); border-color: var(--green); }

.timer-sub {
  font-family: 'Space Mono', monospace;
  font-size: .52rem;
  letter-spacing: 1.5px;
  color: var(--text2);
  text-transform: uppercase;
  pointer-events: none;
  text-align: center;
}
.timer-hint {
  font-family: 'Space Mono', monospace;
  font-size: .52rem;
  letter-spacing: 1.5px;
  color: var(--text2);
  text-transform: uppercase;
  text-align: center;
}

/* ── BUTTONS ── */
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
.btn {
  font-family: 'Syne', sans-serif;
  font-size: .78rem;
  font-weight: 700;
  padding: 9px 18px;
  border-radius: 8px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all .15s;
  letter-spacing: .3px;
  touch-action: manipulation;
}
.btn-primary { background: var(--accent);    color: #fff;          border-color: var(--accent);  }
.btn-primary:hover { background: #6d28d9; }
.btn-ghost   { background: transparent;      color: var(--text2);  border-color: var(--border);  }
.btn-ghost:hover   { color: var(--text); border-color: var(--text2); }
.btn-danger  { background: transparent;      color: var(--red);    border-color: var(--red);     }
.btn-danger:hover  { background: rgba(239, 68, 68, .1); }
.btn-teal    { background: transparent;      color: var(--accent2); border-color: var(--accent2); }
.btn-teal:hover    { background: rgba(6, 182, 212, .1); }

/* ── SUBSET SELECTOR ── */
.subset-bar {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  justify-content: center;
}
.subset-chip {
  font-family: 'Space Mono', monospace;
  font-size: .58rem;
  padding: 4px 9px;
  border-radius: 6px;
  border: 1.5px solid var(--border);
  background: transparent;
  color: var(--text2);
  cursor: pointer;
  transition: all .12s;
  touch-action: manipulation;
  letter-spacing: .5px;
}
.subset-chip.active {
  background: rgba(124, 58, 237, .15);
  border-color: var(--accent);
  color: var(--accent);
}
.subset-chip:hover:not(.active) { border-color: var(--text2); color: var(--text); }

.subset-label {
  font-family: 'Space Mono', monospace;
  font-size: .55rem;
  letter-spacing: 2px;
  color: var(--text2);
  text-transform: uppercase;
  margin-bottom: 5px;
  text-align: center;
}

/* ── STATS ── */
.card-title {
  font-family: 'Space Mono', monospace;
  font-size: .54rem;
  letter-spacing: 3px;
  color: var(--text2);
  text-transform: uppercase;
}
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 9px;
}
.stat-box {
  background: var(--surface2);
  border-radius: 10px;
  padding: 9px 6px;
  border: 1px solid var(--border);
  text-align: center;
}
.stat-label {
  font-family: 'Space Mono', monospace;
  font-size: .5rem;
  letter-spacing: 2px;
  color: var(--text2);
  text-transform: uppercase;
  margin-bottom: 3px;
}
.stat-value {
  font-family: 'Space Mono', monospace;
  font-size: .95rem;
  font-weight: 700;
  color: var(--accent2);
}
.stat-value.best  { color: var(--green); }
.stat-value.worst { color: var(--red);   }

.divider { height: 1px; background: var(--border); margin: 9px 0; }

.history-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 220px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.history-item {
  display: grid;
  grid-template-columns: 22px 1fr auto auto;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  background: var(--surface2);
  border-radius: 8px;
  border: 1px solid var(--border);
  font-family: 'Space Mono', monospace;
  font-size: .66rem;
}
.history-item.pb { border-color: var(--green); }
.history-num  { color: var(--text2); font-size: .56rem; }
.history-alg  { color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.history-time { color: var(--accent3); font-weight: 700; font-size: .72rem; }
.history-item.pb .history-time { color: var(--green); }
.history-del {
  color: var(--text2);
  cursor: pointer;
  background: none;
  border: none;
  font-size: .82rem;
  padding: 0 3px;
  touch-action: manipulation;
}
.history-del:hover { color: var(--red); }

.empty-hint {
  font-family: 'Space Mono', monospace;
  font-size: .66rem;
  color: var(--text2);
  text-align: center;
  padding: 16px;
}

/* ── ALG CHIPS ── */
.alg-stats-card { grid-column: 1 / -1; }
.alg-chips { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 10px; }
.alg-chip {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 11px;
  font-family: 'Space Mono', monospace;
  font-size: .61rem;
  display: flex;
  align-items: center;
  gap: 6px;
}
.alg-chip:hover { border-color: var(--accent); }
.chip-name {
  color: var(--text);
  font-weight: 700;
  max-width: 130px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.chip-n    { color: var(--text2); font-size: .54rem; }
.chip-best { color: var(--green);   }
.chip-avg  { color: var(--accent2); }

/* ── COLOR MODAL ── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .7);
  z-index: 100;
  align-items: center;
  justify-content: center;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px;
  width: min(480px, 95vw);
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
}
.modal-title {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-close {
  background: none;
  border: none;
  color: var(--text2);
  font-size: 1.3rem;
  cursor: pointer;
  padding: 2px 6px;
}
.modal-close:hover { color: var(--text); }

.color-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}
.color-item   { display: flex; flex-direction: column; gap: 5px; align-items: center; }
.color-label  {
  font-family: 'Space Mono', monospace;
  font-size: .58rem;
  color: var(--text2);
  letter-spacing: 1px;
  text-transform: uppercase;
}
.color-swatch {
  width: 100%;
  height: 36px;
  border-radius: 8px;
  border: 2px solid var(--border);
  cursor: pointer;
  transition: border-color .15s;
}
.color-swatch:hover { border-color: var(--text2); }
.color-input { opacity: 0; position: absolute; width: 0; height: 0; }

.preset-row { display: flex; gap: 7px; flex-wrap: wrap; margin-bottom: 14px; }
.preset-btn {
  font-family: 'Space Mono', monospace;
  font-size: .58rem;
  padding: 5px 11px;
  border-radius: 6px;
  border: 1.5px solid var(--border);
  background: transparent;
  color: var(--text2);
  cursor: pointer;
  transition: all .12s;
}
.preset-btn:hover { border-color: var(--accent2); color: var(--accent2); }

.io-row { display: flex; gap: 7px; margin-top: 4px; }
.io-btn {
  font-family: 'Space Mono', monospace;
  font-size: .58rem;
  padding: 5px 12px;
  border-radius: 6px;
  border: 1.5px solid var(--border);
  background: transparent;
  color: var(--text2);
  cursor: pointer;
  flex: 1;
  transition: all .12s;
}
.io-btn:hover { border-color: var(--accent); color: var(--accent); }
#importInput  { display: none; }

/* ── MODAL LABELS (previously inline styles) ── */
.modal-section-label {
  font-family: 'Space Mono', monospace;
  font-size: .58rem;
  color: var(--text2);
  margin-bottom: 10px;
  letter-spacing: 1px;
}

/* ── STATS INLINE OVERRIDES ── */
.btn-clear-sm {
  font-size: .6rem;
  padding: 4px 9px;
}
.card-title-mb { margin-bottom: 8px; }
.section-header-flush { margin-bottom: 0; }
.alg-meta-label {
  font-family: 'Space Mono', monospace;
  font-size: .54rem;
  color: var(--text2);
}

/* ── MOBILE TABS ── */
.mobile-tabs {
  display: none;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  scrollbar-width: none;
  padding: 0 11px;
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 20;
}
.mobile-tabs::-webkit-scrollbar { display: none; }
.tab-btn {
  font-family: 'Space Mono', monospace;
  font-size: .56rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 10px 14px;
  background: none;
  border: none;
  color: var(--text2);
  cursor: pointer;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: all .15s;
  touch-action: manipulation;
}
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ── RESPONSIVE ── */
@media (max-width: 960px) {
  .main-grid            { grid-template-columns: 1fr; padding: 12px 14px; }
  .alg-stats-card       { grid-column: 1; }
  .timer-display        { font-size: 3.8rem; }
  .header-hint          { display: none; }
}
@media (max-width: 600px) {
  header                { padding: 8px 12px; }
  .main-grid            { padding: 8px; gap: 8px; }
  .mobile-tabs          { display: flex; }
  .tab-panel            { display: none !important; }
  .tab-panel.active     { display: block !important; }
  .timer-card           { padding: 14px 11px; gap: 12px; }
  .timer-display        { font-size: 3.5rem; }
  .alg-card-name        { font-size: 1.25rem; }
  .card                 { padding: 12px; }
  .btn                  { padding: 10px 12px; }
}