/* ═══════════════════════════════════════════════════════════
   c a r d p u t e r  o s  —  w h i t e  v a r i a n t
   candybrat cafeteria ai playground
   ═══════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;700&display=swap');

:root {
  --bg: #ffffff;
  --bg2: #fafafa;
  --bg3: #f5f5f5;
  --text: #1a1a2e;
  --text2: #444;
  --text3: #888;
  --magenta: #f800ff;
  --purple: #7800ff;
  --cyan: #00ffff;
  --lime: #00ff00;
  --yellow: #ffff00;
  --orange: #fd6800;
  --red: #f80000;
  --pink: #fe19ff;
  --frost: #bdbdbd;
  --accent: var(--magenta);
  --accent2: var(--purple);
  --border: var(--purple);
  --border-faint: rgba(120, 0, 255, 0.15);
  --glow: rgba(248, 0, 255, 0.08);
  --font: 'JetBrains Mono', 'Courier New', 'Consolas', monospace;
  --transition: 0.4s ease;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 13px;
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
  transition: background var(--transition);
}

/* ── scanline overlay ── */
body::after {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  pointer-events: none;
  z-index: 9999;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 3px,
    rgba(120, 0, 255, 0.015) 3px,
    rgba(120, 0, 255, 0.015) 4px
  );
}

/* ── corner decorators ── */
.corner-tl, .corner-tr, .corner-bl, .corner-br {
  position: fixed;
  font-family: var(--font);
  font-size: 14px;
  color: var(--border);
  opacity: 0.4;
  z-index: 100;
  transition: color var(--transition);
}
.corner-tl { top: 8px; left: 12px; }
.corner-tr { top: 8px; right: 12px; }
.corner-bl { bottom: 8px; left: 12px; }
.corner-br { bottom: 8px; right: 12px; }

/* ── twinkling stars ── */
.star {
  position: fixed;
  font-family: var(--font);
  font-size: 10px;
  color: var(--accent);
  opacity: 0.5;
  z-index: 100;
  transition: color var(--transition);
}
.star.phase-1 { animation: twinkle1 2.5s infinite; }
.star.phase-2 { animation: twinkle2 2.5s infinite; }
.star.phase-3 { animation: twinkle3 2.5s infinite; }

@keyframes twinkle1 {
  0%, 100% { opacity: 0.6; content: '*'; }
  50% { opacity: 0.15; }
}
@keyframes twinkle2 {
  0%, 100% { opacity: 0.15; }
  50% { opacity: 0.6; }
}
@keyframes twinkle3 {
  0% { opacity: 0.4; }
  33% { opacity: 0.1; }
  66% { opacity: 0.7; }
  100% { opacity: 0.4; }
}

/* ═══════════════════════════════════════════════════════════
   h e a d e r
   ═══════════════════════════════════════════════════════════ */

.header {
  padding: 24px 32px 16px;
  text-align: center;
  border-bottom: 1px solid var(--border-faint);
  position: relative;
}

.header h1 {
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 0.35em;
  color: var(--accent);
  text-transform: lowercase;
  transition: color var(--transition);
}

.header .subtitle {
  font-size: 10px;
  color: var(--text3);
  letter-spacing: 0.2em;
  margin-top: 4px;
}

.header .status-row {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 10px;
}

.status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  margin-right: 4px;
  vertical-align: middle;
}
.status-dot.online { background: var(--lime); }
.status-dot.offline { background: var(--red); }

.status-indicator {
  font-size: 10px;
  color: var(--text3);
  letter-spacing: 0.1em;
}

/* ═══════════════════════════════════════════════════════════
   t a b  n a v
   ═══════════════════════════════════════════════════════════ */

.tab-nav {
  display: flex;
  justify-content: center;
  gap: 4px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-faint);
  flex-wrap: wrap;
}

.tab-btn {
  font-family: var(--font);
  font-size: 11px;
  letter-spacing: 0.15em;
  padding: 8px 16px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text3);
  cursor: pointer;
  text-transform: lowercase;
  transition: all var(--transition);
  border-radius: 2px;
  position: relative;
}

.tab-btn::before,
.tab-btn::after {
  font-size: 10px;
  opacity: 0;
  transition: opacity var(--transition);
}
.tab-btn::before { content: '~ '; }
.tab-btn::after { content: ' ~'; }

.tab-btn:hover {
  color: var(--accent);
  border-color: var(--border-faint);
}

.tab-btn.active {
  color: var(--accent);
  border-color: var(--border);
  background: var(--glow);
}
.tab-btn.active::before,
.tab-btn.active::after {
  opacity: 0.5;
  color: var(--border);
}

/* ═══════════════════════════════════════════════════════════
   t a b  c o n t e n t
   ═══════════════════════════════════════════════════════════ */

.tab-content {
  display: none;
  padding: 24px;
  max-width: 1200px;
  margin: 0 auto;
  animation: fadeIn 0.3s ease;
}
.tab-content.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ═══════════════════════════════════════════════════════════
   c o n t r o l  p a n e l s
   ═══════════════════════════════════════════════════════════ */

.controls-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.control-group.full-width {
  grid-column: 1 / -1;
}

.control-label {
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--text3);
  text-transform: lowercase;
}

/* ── double-border inputs ── */
select, input[type="text"], input[type="color"], textarea {
  font-family: var(--font);
  font-size: 12px;
  padding: 8px 12px;
  background: var(--bg);
  color: var(--text);
  border: 2px solid var(--border);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  border-radius: 2px;
  width: 100%;
}

select:focus, input:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--glow), inset 0 0 0 1px var(--accent);
}

textarea {
  resize: vertical;
  min-height: 60px;
}

select {
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%237800ff' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  padding-right: 28px;
}

input[type="color"] {
  height: 36px;
  padding: 2px;
  cursor: pointer;
}

/* ── corruption slider ── */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  background: var(--border-faint);
  border-radius: 2px;
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 1px var(--accent);
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: 9px;
  color: var(--text3);
  letter-spacing: 0.08em;
  margin-top: 2px;
}

/* ═══════════════════════════════════════════════════════════
   m o d e l  p i c k e r
   ═══════════════════════════════════════════════════════════ */

.model-panel {
  margin-bottom: 20px;
}

.model-panel .control-label {
  margin-bottom: 8px;
}

.model-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.model-btn {
  font-family: var(--font);
  font-size: 10px;
  letter-spacing: 0.08em;
  padding: 6px 12px;
  background: transparent;
  border: 1px solid var(--border-faint);
  color: var(--text2);
  cursor: pointer;
  transition: all 0.2s ease;
  border-radius: 2px;
}

.model-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.model-btn.active {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

.model-btn .model-cost {
  font-size: 8px;
  opacity: 0.6;
  margin-left: 4px;
}

/* ═══════════════════════════════════════════════════════════
   r e f e r e n c e  p a n e l
   ═══════════════════════════════════════════════════════════ */

.reference-panel {
  margin-bottom: 20px;
  border: 1px solid var(--border-faint);
  border-radius: 2px;
  padding: 12px;
}

.reference-panel .control-label {
  margin-bottom: 8px;
}

.reference-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(72px, 1fr));
  gap: 6px;
  max-height: 200px;
  overflow-y: auto;
}

.ref-thumb {
  aspect-ratio: 1;
  border: 2px solid transparent;
  border-radius: 2px;
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.2s ease;
  position: relative;
}

.ref-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  image-rendering: pixelated;
}

.ref-thumb:hover {
  border-color: var(--border);
}

.ref-thumb.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--glow);
}

.ref-thumb.selected::after {
  content: '*';
  position: absolute;
  top: 2px;
  right: 4px;
  color: var(--accent);
  font-size: 14px;
  font-weight: bold;
  text-shadow: 0 0 4px var(--bg);
}

/* ═══════════════════════════════════════════════════════════
   p r o m p t  p r e v i e w
   ═══════════════════════════════════════════════════════════ */

.prompt-preview {
  margin-bottom: 20px;
}

.prompt-preview textarea {
  min-height: 80px;
  font-size: 11px;
  color: var(--text2);
  border-color: var(--border-faint);
}

.prompt-preview textarea:focus {
  border-color: var(--accent);
}

/* ═══════════════════════════════════════════════════════════
   a c t i o n  b a r
   ═══════════════════════════════════════════════════════════ */

.action-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.btn {
  font-family: var(--font);
  font-size: 11px;
  letter-spacing: 0.12em;
  padding: 10px 20px;
  border: 2px solid var(--border);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s ease;
  border-radius: 2px;
  text-transform: lowercase;
}

.btn:hover {
  background: var(--glow);
  border-color: var(--accent);
  color: var(--accent);
}

.btn-primary {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--purple);
  border-color: var(--purple);
  color: var(--bg);
}

.btn-save {
  background: transparent;
  border-color: var(--lime);
  color: var(--text);
}
.btn-save:hover {
  background: rgba(0, 255, 0, 0.08);
  color: #006600;
}

.btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* ═══════════════════════════════════════════════════════════
   r e s u l t  p a n e l
   ═══════════════════════════════════════════════════════════ */

.result-panel {
  min-height: 200px;
  border: 1px solid var(--border-faint);
  border-radius: 2px;
  padding: 16px;
  text-align: center;
  position: relative;
}

.result-panel.empty {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text3);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.result-image {
  max-width: 100%;
  max-height: 600px;
  border: 2px solid var(--border);
  border-radius: 2px;
  margin-bottom: 12px;
}

.result-actions {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}

.result-meta {
  font-size: 9px;
  color: var(--text3);
  letter-spacing: 0.08em;
  margin-top: 8px;
}

/* ── loading state ── */
.loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.9);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 10;
  gap: 12px;
}

.loading-text {
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.15em;
  animation: loadPulse 1.5s infinite;
}

@keyframes loadPulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

.loading-dots::after {
  content: '';
  animation: dots 1.5s steps(3) infinite;
}

@keyframes dots {
  0% { content: '.'; }
  33% { content: '..'; }
  66% { content: '...'; }
}

/* ═══════════════════════════════════════════════════════════
   w e a t h e r  s t a t e s
   ═══════════════════════════════════════════════════════════ */

/* CLEARMARK — the tray line (lime/clean) */
body.weather-clearmark {
  --accent: #00cc00;
  --accent2: #008800;
  --border: #00cc00;
  --border-faint: rgba(0, 200, 0, 0.12);
  --glow: rgba(0, 255, 0, 0.06);
}

/* SLIPCORE — the kitchen (orange/warm) */
body.weather-slipcore {
  --accent: #fd6800;
  --accent2: #fc0000;
  --border: #fd6800;
  --border-faint: rgba(253, 104, 0, 0.12);
  --glow: rgba(253, 104, 0, 0.06);
  background: #fffcfa;
}

/* FRAYMARK — the melt zone (yellow/red/hot) */
body.weather-fraymark {
  --accent: #e6c800;
  --accent2: #f80000;
  --border: #e6c800;
  --border-faint: rgba(230, 200, 0, 0.15);
  --glow: rgba(251, 224, 0, 0.08);
  background: #fffdf8;
}

/* LOWLINE — the vending machine (cyan/cool) */
body.weather-lowline {
  --accent: #00bbcc;
  --accent2: #07efff;
  --border: #00bbcc;
  --border-faint: rgba(0, 200, 220, 0.12);
  --glow: rgba(0, 255, 255, 0.06);
  background: #f8fdff;
}

/* VOLTAGE — the arcade (magenta+yellow/glitch) */
body.weather-voltage {
  --accent: #f800ff;
  --accent2: #ffff00;
  --border: #f800ff;
  --border-faint: rgba(248, 0, 255, 0.15);
  --glow: rgba(248, 0, 255, 0.08);
}

/* voltage glitch scanlines */
body.weather-voltage::after {
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(248, 0, 255, 0.04) 2px,
    rgba(248, 0, 255, 0.04) 3px
  );
}

/* voltage glitch text effect */
body.weather-voltage .glitch-text {
  animation: glitchShift 0.3s infinite;
}

@keyframes glitchShift {
  0% { transform: translate(0, 0); }
  20% { transform: translate(-1px, 1px); }
  40% { transform: translate(1px, -1px); }
  60% { transform: translate(-1px, 0); }
  80% { transform: translate(1px, 1px); }
  100% { transform: translate(0, 0); }
}

/* voltage scattered pixels */
body.weather-voltage .pixel-noise {
  position: fixed;
  width: 2px;
  height: 2px;
  z-index: 90;
  pointer-events: none;
  animation: pixelBlink 0.8s infinite;
}

@keyframes pixelBlink {
  0%, 100% { opacity: 0; }
  50% { opacity: 0.8; }
}

/* fraymark heat shimmer on borders */
body.weather-fraymark .controls-panel,
body.weather-fraymark .reference-panel,
body.weather-fraymark .result-panel {
  animation: heatShimmer 3s infinite;
}

@keyframes heatShimmer {
  0%, 100% { border-color: rgba(230, 200, 0, 0.15); }
  50% { border-color: rgba(248, 0, 0, 0.15); }
}

/* ═══════════════════════════════════════════════════════════
   s e c t i o n  d i v i d e r s
   ═══════════════════════════════════════════════════════════ */

.section-title {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-faint);
  text-transform: lowercase;
  transition: color var(--transition);
}

.divider {
  text-align: center;
  color: var(--border-faint);
  font-size: 10px;
  letter-spacing: 0.5em;
  margin: 16px 0;
  overflow: hidden;
}

/* ═══════════════════════════════════════════════════════════
   p i x e l  a r c a d e  s p e c i f i c
   ═══════════════════════════════════════════════════════════ */

.pixel-preview {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  border: 2px solid var(--border);
}

.pixel-size-preview {
  display: inline-block;
  border: 1px solid var(--border-faint);
  margin: 4px;
}

/* ═══════════════════════════════════════════════════════════
   t o a s t  n o t i f i c a t i o n s
   ═══════════════════════════════════════════════════════════ */

.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  font-family: var(--font);
  font-size: 11px;
  letter-spacing: 0.1em;
  padding: 12px 20px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  z-index: 10000;
  animation: toastIn 0.3s ease, toastOut 0.3s ease 2.7s forwards;
  border-radius: 2px;
}

.toast.success { border-color: var(--lime); color: #006600; }
.toast.error { border-color: var(--red); color: var(--red); }

@keyframes toastIn {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
@keyframes toastOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

/* ═══════════════════════════════════════════════════════════
   r e s p o n s i v e
   ═══════════════════════════════════════════════════════════ */

/* -- touch targets: minimum 44px for all interactive elements -- */
@media (pointer: coarse) {
  .tab-btn {
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .btn {
    min-height: 48px;
    padding: 12px 24px;
    font-size: 13px;
  }
  .model-btn {
    min-height: 44px;
    padding: 10px 14px;
    font-size: 12px;
  }
  select, input[type="text"], textarea {
    min-height: 44px;
    font-size: 16px; /* prevents ios zoom on focus */
    padding: 10px 14px;
  }
  .ref-thumb {
    min-width: 64px;
    min-height: 64px;
  }
  .result-actions {
    gap: 10px;
  }
  .result-actions .btn {
    flex: 1;
    min-width: 100px;
  }
}

/* ── fold 7 inner display: ~1968x2184, near-square, 8" ──
   triggers at tablet-ish widths but near-square aspect ratio.
   landscape orientation when unfolded = wide workspace.
   portrait = tall, generous vertical space. */

/* tablet / fold inner portrait (narrow dimension ~492-984px CSS) */
@media (min-width: 600px) and (max-width: 1024px) {
  .tab-content {
    max-width: 100%;
    padding: 20px;
  }
  .controls-panel {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }
  .reference-grid {
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    max-height: 240px;
  }
  .result-image {
    max-height: 500px;
  }
}

/* fold inner landscape / large tablet */
@media (min-width: 600px) and (max-width: 1024px) and (orientation: landscape) {
  .tab-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    align-items: start;
  }
  .section-title {
    grid-column: 1 / -1;
  }
  .controls-panel {
    grid-column: 1;
  }
  .model-panel {
    grid-column: 1;
  }
  .reference-panel {
    grid-column: 1;
  }
  .prompt-preview {
    grid-column: 1;
  }
  .action-bar {
    grid-column: 1;
  }
  .result-panel {
    grid-column: 2;
    grid-row: 2 / 7;
    position: sticky;
    top: 20px;
    min-height: 400px;
  }
}

/* ── fold 7 cover display: 1080x2520, 21:9, tall narrow ──
   CSS width ~360px at 3x, very tall. needs single-column everything,
   compact tabs, large touch targets. */

/* narrow phone (cover screen, small phones) */
@media (max-width: 599px) {
  .header {
    padding: 16px 16px 12px;
  }
  .header h1 {
    font-size: 12px;
    letter-spacing: 0.18em;
  }
  .header .subtitle {
    font-size: 9px;
  }
  .header .status-row {
    gap: 10px;
    margin-top: 8px;
  }
  .status-indicator {
    font-size: 9px;
  }

  /* tabs: horizontal scroll, no wrap */
  .tab-nav {
    gap: 0;
    padding: 8px 4px;
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .tab-nav::-webkit-scrollbar { display: none; }
  .tab-btn {
    font-size: 10px;
    padding: 10px 12px;
    letter-spacing: 0.06em;
    white-space: nowrap;
    flex-shrink: 0;
  }
  .tab-btn::before,
  .tab-btn::after {
    display: none;
  }

  .tab-content {
    padding: 14px 12px;
  }

  /* single column controls */
  .controls-panel {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  /* model grid: 2 columns on narrow */
  .model-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
  }
  .model-btn {
    text-align: center;
    justify-content: center;
  }
  .model-btn .model-cost {
    display: block;
    margin-left: 0;
    margin-top: 2px;
  }

  /* reference grid: smaller thumbs, taller scroll */
  .reference-grid {
    grid-template-columns: repeat(auto-fill, minmax(56px, 1fr));
    max-height: 160px;
    gap: 4px;
  }

  /* result image: full bleed */
  .result-panel {
    margin: 0 -12px;
    border-radius: 0;
    border-left: none;
    border-right: none;
    padding: 12px;
  }
  .result-image {
    max-height: 70vh;
    border-radius: 0;
  }

  /* action bar: full width buttons stacked */
  .action-bar {
    flex-direction: column;
  }
  .action-bar .btn {
    width: 100%;
    text-align: center;
  }

  /* prompt preview smaller */
  .prompt-preview textarea {
    min-height: 60px;
    font-size: 12px;
  }

  /* toast: bottom center, wider */
  .toast {
    left: 12px;
    right: 12px;
    bottom: 16px;
    text-align: center;
  }

  /* corners: tighter */
  .corner-tl, .corner-tr, .corner-bl, .corner-br {
    font-size: 11px;
  }
  .corner-tl { top: 4px; left: 6px; }
  .corner-tr { top: 4px; right: 6px; }
  .corner-bl { bottom: 4px; left: 6px; }
  .corner-br { bottom: 4px; right: 6px; }

  /* stars: fewer visible */
  .star:nth-child(n+8) { display: none; }
}

/* ── ultra-narrow: fold cover in portrait, ~360px ── */
@media (max-width: 400px) {
  .header h1 {
    font-size: 11px;
    letter-spacing: 0.12em;
  }
  .tab-btn {
    font-size: 9px;
    padding: 8px 10px;
  }
  .model-grid {
    grid-template-columns: 1fr 1fr;
  }
  .model-btn {
    font-size: 10px;
    padding: 8px 6px;
  }
  .reference-grid {
    grid-template-columns: repeat(auto-fill, minmax(48px, 1fr));
  }
  .control-label {
    font-size: 9px;
  }
  select, textarea {
    font-size: 14px;
  }
}

/* ── wide desktop ── */
@media (min-width: 1200px) {
  .tab-content {
    max-width: 1100px;
  }
  .controls-panel {
    grid-template-columns: 1fr 1fr 1fr;
  }
  .reference-grid {
    grid-template-columns: repeat(auto-fill, minmax(88px, 1fr));
    max-height: 280px;
  }
  .result-image {
    max-height: 700px;
  }
}

/* ═══════════════════════════════════════════════════════════
   s c r o l l b a r
   ═══════════════════════════════════════════════════════════ */

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-faint);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--border);
}

/* ── character picker (replaces multi-select) ── */
.char-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  max-height: 180px;
  overflow-y: auto;
  padding: 8px;
  border: 2px solid var(--border);
  border-radius: 2px;
}

.char-chip {
  font-family: var(--font);
  font-size: 11px;
  padding: 6px 12px;
  border: 1px solid var(--border-faint);
  border-radius: 2px;
  background: transparent;
  color: var(--text2);
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
  -webkit-user-select: none;
}

.char-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.char-chip.selected {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

@media (pointer: coarse) {
  .char-chip {
    min-height: 44px;
    display: flex;
    align-items: center;
    padding: 8px 14px;
    font-size: 13px;
  }
  .char-picker {
    max-height: 220px;
  }
}

/* ── safe area insets (notch/rounded corners on fold) ── */
@supports (padding: env(safe-area-inset-top)) {
  .header {
    padding-top: calc(16px + env(safe-area-inset-top));
  }
  .tab-content {
    padding-left: calc(14px + env(safe-area-inset-left));
    padding-right: calc(14px + env(safe-area-inset-right));
  }
  .toast {
    bottom: calc(16px + env(safe-area-inset-bottom));
  }
}