/* C41 — film-lab dark UI. Mobile-first, iOS Safari 16+. */

:root {
  --bg: #0b0a09;
  --bg-stage: #070706;
  --surface: #141210;
  --surface-2: #1c1916;
  --surface-3: #27231f;
  --line: rgba(255, 236, 210, 0.08);
  --line-2: rgba(255, 236, 210, 0.14);
  --text: #f1ebe3;
  --text-2: #c9c0b5;
  --muted: #8d847a;
  --faint: #5d5650;
  --accent: #f4a83a;       /* film-edge amber */
  --accent-2: #ffbf5e;
  --accent-ink: #1b1105;
  --accent-dim: rgba(244, 168, 58, 0.16);
  --danger: #ff6b4a;
  --radius: 12px;
  --radius-sm: 8px;
  --hit: 44px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", "Segoe UI", Roboto, system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, "Roboto Mono", Consolas, monospace;
  --sat: env(safe-area-inset-top, 0px);
  --sar: env(safe-area-inset-right, 0px);
  --sab: env(safe-area-inset-bottom, 0px);
  --sal: env(safe-area-inset-left, 0px);
  --pane-h: 236px;
  --ease: cubic-bezier(.2, .8, .2, 1);
  color-scheme: dark;
}

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

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.4 var(--font);
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  overscroll-behavior: none;
  -webkit-tap-highlight-color: transparent;
}

body {
  position: fixed;
  inset: 0;
  overflow: hidden;
  touch-action: manipulation;
}

button, input, select, textarea { font: inherit; color: inherit; }
button {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  -webkit-user-select: none;
  user-select: none;
  cursor: pointer;
}
[hidden] { display: none !important; }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ------------------------------------------------------------------ layout */

.app {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas: "top" "stage" "panel";
  height: 100vh;                     /* fallback */
  height: -webkit-fill-available;
  height: 100dvh;
  width: 100%;
  overflow: hidden;
}

.topbar {
  grid-area: top;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: calc(var(--sat) + 4px) calc(var(--sar) + 10px) 6px calc(var(--sal) + 6px);
  background: linear-gradient(var(--bg), rgba(11, 10, 9, 0.92));
  border-bottom: 1px solid var(--line);
  -webkit-user-select: none;
  user-select: none;
  z-index: 5;
}
.topbar-title {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  padding-left: 4px;
}
.brandmark {
  font: 800 17px/1 var(--font);
  letter-spacing: 0.04em;
  color: var(--text);
}
.brandmark {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  align-self: center;
}
.brandmark-logo { width: 28px; height: 28px; display: block; }
.stage {
  grid-area: stage;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 50% 40%, #12100e 0%, var(--bg-stage) 70%);
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}
.view {
  position: absolute;
  left: 0; top: 0;
  display: block;
  opacity: 0;
  transition: opacity .25s var(--ease);
  -webkit-touch-callout: none;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.55);
}
.app.has-image .view { opacity: 1; }

.panel {
  grid-area: panel;
  background: var(--surface);
  border-top: 1px solid var(--line);
  padding: 0 var(--sar) var(--sab) var(--sal);
  display: flex;
  flex-direction: column;
  min-height: 0;
  -webkit-user-select: none;
  user-select: none;
  z-index: 4;
}
.app.is-empty .panel .pane:not([data-pane="looks"]) { opacity: 0.45; pointer-events: none; }

/* Tabs */
.tabs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  padding: 0 4px;
  border-bottom: 1px solid var(--line);
}
.tab {
  position: relative;
  min-height: var(--hit);
  background: none;
  border: 0;
  color: var(--muted);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.02em;
  transition: color .15s;
}
.tabs.tabs-4 { grid-template-columns: repeat(4, 1fr); padding: 0 8px; }
.tab[aria-selected="true"] { color: var(--text); }
.tab::after {
  content: "";
  position: absolute;
  left: 30%; right: 30%; bottom: -1px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform .2s var(--ease);
}
.tab[aria-selected="true"]::after { transform: scaleX(1); }

.panes {
  position: relative;
  height: var(--pane-h);
  transition: opacity .2s;
}
.pane {
  position: absolute;
  inset: 0;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding: 10px 0 12px;
}
.pane-section { padding: 0 16px; }
.pane-section + .pane-section { margin-top: 6px; }
.pane-label {
  font: 600 10px/1 var(--mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
  padding: 10px 16px 6px;
}

/* ----------------------------------------------------------------- buttons */

.icon-btn {
  display: inline-grid;
  place-items: center;
  width: var(--hit);
  height: var(--hit);
  flex: none;
  border: 0;
  border-radius: 50%;
  background: none;
  color: var(--text-2);
  padding: 0;
}
.icon-btn svg { width: 24px; height: 24px; }
.icon-btn:active { background: rgba(255, 255, 255, 0.06); }
.icon-btn[aria-pressed="true"] { color: var(--accent); }
.icon-btn:disabled { opacity: 0.35; pointer-events: none; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 36px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  background: var(--surface-2);
  color: var(--text);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.01em;
  white-space: nowrap;
  text-decoration: none;
  transition: transform .1s, background .15s, opacity .15s;
  position: relative;
}
/* extend hit target to 44px without changing visuals */
.btn::before { content: ""; position: absolute; inset: -4px -2px; }
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.35; pointer-events: none; }
.btn svg { width: 20px; height: 20px; }
.btn-accent {
  background: var(--accent);
  border-color: transparent;
  color: var(--accent-ink);
}
.btn-accent:active { background: var(--accent-2); }
.btn-ghost { background: transparent; }
.btn-lg { min-height: 52px; padding: 0 26px; font-size: 16px; border-radius: 14px; }
.btn-block { width: 100%; }
.btn-sm { min-height: 32px; padding: 0 12px; font-size: 13px; }

/* --------------------------------------------------------------- empty state */

.empty {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px calc(var(--sar) + 24px) 24px calc(var(--sal) + 24px);
  gap: 6px;
}
.app.has-image .empty { display: none; }
.empty-logo {
  width: 132px;
  height: 132px;
  margin-bottom: 14px;
  filter: drop-shadow(0 18px 40px rgba(0, 0, 0, .55));
}
.empty-title { margin: 0; font-size: 22px; font-weight: 700; letter-spacing: -0.01em; }
.empty-sub { margin: 0 0 18px; color: var(--muted); font-size: 14px; max-width: 30ch; }
.empty-actions { display: flex; flex-direction: column; gap: 10px; width: min(280px, 100%); }
.empty-actions .btn { width: 100%; }

.fatal {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 32px;
  background: var(--bg-stage);
  z-index: 3;
}
.fatal-title { margin: 0 0 8px; font-size: 20px; }
.fatal-msg { margin: 0; color: var(--muted); max-width: 34ch; }

/* --------------------------------------------------------------- stage bits */

.badge-original {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  font: 700 10px/1 var(--mono);
  letter-spacing: 0.2em;
  color: var(--accent-ink);
  background: var(--accent);
  padding: 6px 9px;
  border-radius: 4px;
  pointer-events: none;
  z-index: 2;
}
.split-handle {
  position: absolute;
  top: 0;
  width: 44px;
  margin-left: -22px;
  z-index: 2;
  touch-action: none;
  cursor: ew-resize;
}
.split-handle::before {
  content: "";
  position: absolute;
  left: 50%; top: 0; bottom: 0;
  width: 2px;
  margin-left: -1px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 0 6px rgba(0, 0, 0, 0.6);
}
.split-knob {
  position: absolute;
  top: 50%; left: 50%;
  width: 34px; height: 34px;
  margin: -17px 0 0 -17px;
  border-radius: 50%;
  background: rgba(20, 18, 16, 0.85);
  border: 2px solid #fff;
  box-shadow: 0 2px 10px rgba(0, 0, 0, .5);
}
.split-knob::before, .split-knob::after {
  content: "";
  position: absolute;
  top: 50%;
  border: 5px solid transparent;
  margin-top: -5px;
}
.split-knob::before { left: 3px; border-right-color: #fff; }
.split-knob::after { right: 3px; border-left-color: #fff; }
.split-tag {
  position: absolute;
  bottom: 10px;
  font: 700 9px/1 var(--mono);
  letter-spacing: .18em;
  color: rgba(255, 255, 255, .85);
  background: rgba(0, 0, 0, .5);
  padding: 5px 6px;
  border-radius: 3px;
  pointer-events: none;
  white-space: nowrap;
}
.split-tag.l { right: 30px; }
.split-tag.r { left: 30px; color: var(--accent); }

.stage-busy {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(7, 7, 6, .4);
  z-index: 3;
}
.spinner {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 2.5px solid rgba(244, 168, 58, .25);
  border-top-color: var(--accent);
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ------------------------------------------------------------------ chips */

.chips {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-width: none;
  padding: 0 16px 8px;
  -webkit-overflow-scrolling: touch;
}
.chips::-webkit-scrollbar { display: none; }
.chips.wrap { flex-wrap: wrap; overflow: visible; padding: 0; }
.chip {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 32px;
  padding: 0 13px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  background: transparent;
  color: var(--text-2);
  font-size: 13px;
  font-weight: 600;
  position: relative;
}
.chip::before { content: ""; position: absolute; inset: -6px -2px; }
.chip[aria-checked="true"] {
  background: var(--text);
  color: #141210;
  border-color: transparent;
}
.chip-swatch { width: 10px; height: 10px; border-radius: 50%; box-shadow: inset 0 0 0 1px rgba(0,0,0,.3); }

/* ------------------------------------------------------------------ cards */

.cards {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  overflow-y: hidden;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  scroll-padding: 0 16px;
  padding: 2px 16px 6px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.cards::-webkit-scrollbar { display: none; }
.card {
  flex: none;
  scroll-snap-align: start;
  width: 84px;
  padding: 0;
  border: 0;
  background: none;
  text-align: left;
  color: var(--text);
  position: relative;
}
.card-thumb {
  position: relative;
  display: block;
  width: 84px;
  height: 84px;
  border-radius: 9px;
  overflow: hidden;
  background: var(--surface-3);
  box-shadow: inset 0 0 0 1px var(--line);
  transition: box-shadow .15s, transform .15s var(--ease);
}
.card-thumb canvas,
.card-thumb .swatch-fill {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
.card-thumb canvas { opacity: 0; transition: opacity .3s; }
.card-thumb canvas.is-ready { opacity: 1; }
.card-stripe {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 5px;
  display: flex;
}
.card-stripe i { flex: 1; }
.card-iso {
  position: absolute;
  top: 5px; left: 5px;
  font: 700 9px/1 var(--mono);
  letter-spacing: .06em;
  color: #fff;
  background: rgba(0, 0, 0, .55);
  padding: 3px 4px;
  border-radius: 3px;
}
.card[aria-checked="true"] .card-thumb {
  box-shadow: 0 0 0 2px var(--accent), 0 0 0 4px rgba(244, 168, 58, .18);
}
.card:active .card-thumb { transform: scale(.96); }
.card-brand {
  display: block;
  margin-top: 6px;
  font: 600 9px/1.1 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.card-name {
  display: block;
  margin-top: 2px;
  font-size: 12.5px;
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.card[aria-checked="true"] .card-name { color: var(--accent); }
.card-sub {
  display: block;
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card.cam { width: 104px; }
.card.cam .card-thumb {
  width: 104px;
  height: 70px;
  display: grid;
  place-items: center;
  color: var(--text-2);
  background: linear-gradient(160deg, var(--surface-3), var(--surface-2));
}
.card.cam .card-thumb svg { width: 56px; height: 46px; }
.card.cam[aria-checked="true"] .card-thumb { color: var(--accent); }
.card-year {
  position: absolute;
  top: 5px; right: 6px;
  font: 600 9px/1 var(--mono);
  letter-spacing: .08em;
  color: var(--muted);
}
.card-fmt {
  position: absolute;
  bottom: 5px; left: 6px;
  padding: 2px 4px;
  border-radius: 3px;
  border: 1px solid var(--line-2);
  font: 600 9px/1 var(--mono);
  letter-spacing: .06em;
  color: var(--muted);
}
.card.cam[aria-checked="true"] .card-fmt { color: var(--accent); border-color: currentColor; }
.cam-toggles { margin-top: 6px; }
.cam-toggles .toggle-row + .toggle-row { border-top: 1px solid var(--line); }
/* per-camera options: format masks, flash gels */
.cam-opts { display: grid; gap: 6px; padding: 6px 16px 4px; }
.cam-opts .chips.wrap { gap: 6px; }
.opts-label {
  font: 600 10px/1 var(--mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
}

/* Looks */
.card-wrap { flex: none; position: relative; scroll-snap-align: start; }
.card-wrap > .card { scroll-snap-align: none; }
.card-thumb .look-ref {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; display: block;
}
.card.look .card-sub { margin-top: 1px; }
.card.look.is-modified .card-sub { color: var(--accent); font-weight: 600; }
.card.look.is-modified .card-thumb {
  box-shadow: 0 0 0 2px var(--accent), 0 0 0 4px rgba(244, 168, 58, .18);
  background-image: none;
}
.card.look.is-modified .card-thumb::after {
  content: "";
  position: absolute; top: 6px; right: 6px;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 2px rgba(0, 0, 0, .45);
}
.look-match .card-thumb {
  display: grid;
  place-items: center;
  color: var(--accent);
  background:
    radial-gradient(70% 60% at 0% 70%, rgba(255, 143, 122, .28), transparent 70%),
    radial-gradient(60% 60% at 100% 35%, rgba(127, 240, 200, .22), transparent 70%),
    var(--surface-2);
  box-shadow: inset 0 0 0 1.5px rgba(244, 168, 58, .45);
}
.look-match .card-thumb svg { width: 30px; height: 30px; }
.look-match .card-name { color: var(--accent); }
.card-edit {
  position: absolute;
  top: 4px; right: 4px;
  width: 26px; height: 26px;
  display: grid; place-items: center;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(12, 10, 9, .62);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  color: #fff;
  z-index: 1;
}
.card-edit::before { content: ""; position: absolute; inset: -9px; }   /* 44 px hit area */
.card-edit svg { width: 16px; height: 16px; }
.card-edit:active { transform: scale(.92); }
.look-info {
  padding: 4px 16px 0;
  font-size: 13px;
  line-height: 1.4;
  color: var(--muted);
  min-height: 2.8em;
}
.look-info strong { color: var(--text); font-weight: 650; }
.leak-style { padding-top: 0; padding-bottom: 6px; }
.chip-swatch { flex: none; }

/* Match sheet */
.match { display: grid; gap: 14px; padding-top: 4px; }
.match-hero { display: grid; place-items: center; }
.match-ref {
  display: block;
  max-width: 100%;
  max-height: 34vh;
  border-radius: 10px;
  object-fit: contain;
  background: #000;
  box-shadow: 0 0 0 1px var(--line-2);
}
.match-compare { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.match-fig { margin: 0; display: grid; gap: 6px; min-width: 0; }
.match-fig img, .match-fig canvas {
  display: block;
  width: 100%;
  height: min(36vh, 260px);
  object-fit: contain;
  border-radius: 8px;
  background: #000;
}
.match-fig figcaption {
  text-align: center;
  font: 600 10px/1 var(--mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}
.match-fig:last-child figcaption { color: var(--accent); }
.match-placeholder {
  height: min(36vh, 260px);
  display: grid;
  place-items: center;
  padding: 12px;
  text-align: center;
  font-size: 13px;
  color: var(--muted);
  border-radius: 8px;
  border: 1px dashed var(--line-2);
}
.field { display: grid; gap: 6px; }
.field-label {
  font: 600 10px/1 var(--mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}
.text-input {
  width: 100%;
  min-height: var(--hit);
  padding: 0 12px;
  border-radius: 10px;
  border: 1px solid var(--line-2);
  background: var(--surface-2);
  font-size: 16px;            /* ≥16 px: no iOS zoom on focus */
  color: var(--text);
  -webkit-appearance: none;
  appearance: none;
  -webkit-user-select: text;
  user-select: text;
}
.text-input:focus { border-color: var(--accent); }
.btn-danger { color: var(--danger); border-color: rgba(255, 107, 74, .35); }
.btn-danger.is-armed { background: var(--danger); color: #1b0805; border-color: transparent; }
.edit-head { display: flex; align-items: center; gap: 12px; }
.edit-head .export-hint { text-align: left; }
.edit-thumb { width: 56px; height: 56px; border-radius: 8px; object-fit: cover; box-shadow: 0 0 0 1px var(--line-2); }

/* Strength row with info button */
.row {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  padding: 0 8px 0 16px;
}
.row .slider { flex: 1; min-width: 0; }
.row .icon-btn { margin-bottom: -2px; }

/* ---------------------------------------------------------------- sliders */

.slider { padding: 4px 0 0; }
.slider-head {
  display: flex;
  align-items: baseline;
  gap: 8px;
  min-height: 18px;
}
.slider-label { font-size: 13px; font-weight: 600; color: var(--text-2); }
.slider-spacer { flex: 1; }
.slider-value {
  font: 600 12px/1 var(--mono);
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  min-width: 4ch;
  text-align: right;
  transition: color .2s;
}
.slider.is-default .slider-value { color: var(--muted); }
.slider-head .icon-btn { width: 36px; height: 30px; margin: -6px -6px -6px 0; border-radius: 8px; }
.slider-head .icon-btn svg { width: 18px; height: 18px; }

.slider-track {
  position: relative;
  height: 40px;
  touch-action: pan-y;
  cursor: grab;
  -webkit-user-select: none;
  user-select: none;
}
.slider.is-active .slider-track { cursor: grabbing; }
.slider-rail {
  position: absolute;
  left: 0; right: 0; top: 50%;
  height: 4px;
  margin-top: -2px;
  border-radius: 4px;
  background: var(--surface-3);
  overflow: hidden;
}
.slider-fill {
  position: absolute;
  top: 0; bottom: 0;
  background: var(--accent);
  border-radius: 4px;
}
.slider.is-default .slider-fill { background: var(--faint); }
.slider-ticks .tick-centre {
  position: absolute;
  left: 50%; top: 50%;
  width: 2px; height: 12px;
  margin: -6px 0 0 -1px;
  background: var(--faint);
  border-radius: 1px;
}
.slider-thumb {
  position: absolute;
  top: 50%;
  width: 22px; height: 22px;
  margin: -11px 0 0 -11px;
  border-radius: 50%;
  background: #f4efe8;
  box-shadow: 0 1px 4px rgba(0, 0, 0, .5), 0 0 0 .5px rgba(0, 0, 0, .3);
  transition: transform .12s var(--ease);
  pointer-events: none;
}
.slider.is-active .slider-thumb { transform: scale(1.18); }
.slider.did-reset .slider-thumb { transition: left .25s var(--ease), transform .12s; }
.slider.did-reset .slider-fill { transition: left .25s var(--ease), width .25s var(--ease); }

.ctl { padding: 0 16px; }
.ctl + .ctl { margin-top: 2px; }

/* switch */
.toggle-row { display: flex; align-items: center; gap: 8px; min-height: var(--hit); }
.switch {
  position: relative;
  width: 51px; height: 31px;
  flex: none;
  border-radius: 999px;
  border: 0;
  padding: 0;
  background: var(--surface-3);
  transition: background .2s;
}
.switch::before { content: ""; position: absolute; inset: -7px -2px; }
.switch[aria-checked="true"] { background: var(--accent); }
.switch-knob {
  position: absolute;
  top: 2px; left: 2px;
  width: 27px; height: 27px;
  border-radius: 50%;
  background: #f4efe8;
  box-shadow: 0 2px 4px rgba(0, 0, 0, .35);
  transition: transform .2s var(--ease);
}
.switch[aria-checked="true"] .switch-knob { transform: translateX(20px); }

.date-opts { display: grid; gap: 10px; padding: 4px 0 6px; }
.date-opts[aria-disabled="true"] { opacity: .4; pointer-events: none; }
.date-input {
  width: 100%;
  min-height: var(--hit);
  padding: 0 12px;
  border-radius: 10px;
  border: 1px solid var(--line-2);
  background: var(--surface-2);
  font: 600 15px/1 var(--mono);
  color: var(--text);
  -webkit-appearance: none;
  appearance: none;
  color-scheme: dark;
}
.date-input::-webkit-date-and-time-value { text-align: left; }

.pane-foot { padding: 14px 16px 4px; display: flex; justify-content: center; }

.divider { height: 1px; background: var(--line); margin: 10px 16px; }

/* ------------------------------------------------------------------ sheets */

.sheet-layer { position: fixed; inset: 0; z-index: 100; }
.sheet-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, .55);
  opacity: 0;
  transition: opacity .25s;
}
.sheet {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  margin: 0 auto;
  max-width: 560px;
  max-height: calc(100dvh - var(--sat) - 24px);
  max-height: calc(100vh - var(--sat) - 24px);
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border-radius: 18px 18px 0 0;
  box-shadow: 0 -10px 40px rgba(0, 0, 0, .5), 0 0 0 1px var(--line);
  transform: translateY(105%);
  transition: transform .28s var(--ease);
  padding-bottom: var(--sab);
  outline: none;
}
@supports (height: 100dvh) {
  .sheet { max-height: calc(100dvh - var(--sat) - 24px); }
}
.sheet.is-dragging { transition: none; }
.sheet-layer.is-open .sheet-backdrop { opacity: 1; }
.sheet-layer.is-open .sheet { transform: translateY(0); }
.sheet-grab { display: grid; place-items: center; height: 18px; flex: none; touch-action: none; }
.sheet-grab span { width: 36px; height: 5px; border-radius: 3px; background: var(--line-2); }
.sheet-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 8px 4px calc(20px + var(--sal));
  flex: none;
  touch-action: none;
}
.sheet-title { flex: 1; margin: 0; font-size: 17px; font-weight: 700; letter-spacing: -.01em; }
.sheet-body {
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding: 4px calc(20px + var(--sar)) 20px calc(20px + var(--sal));
  -webkit-user-select: text;
  user-select: text;
}

/* info sheet */
.info-kicker {
  font: 600 10px/1 var(--mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.info-summary { margin: 0 0 14px; color: var(--text-2); font-size: 15px; }
.info-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.info-tag {
  font: 600 10px/1 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 6px 8px;
  border-radius: 5px;
  background: var(--surface-2);
  color: var(--text-2);
  border: 1px solid var(--line);
}
.info-tag.is-warn { color: var(--danger); border-color: rgba(255, 107, 74, .3); }
.info-tag.is-ok { color: #9fd38a; border-color: rgba(159, 211, 138, .25); }
.info-traits { margin: 0; display: grid; gap: 12px; }
.info-traits dt {
  font: 600 10px/1 var(--mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}
.info-traits dd { margin: 0; font-size: 14px; color: var(--text); }
.info-swatch { display: flex; height: 6px; border-radius: 3px; overflow: hidden; margin: 2px 0 14px; }
.info-swatch i { flex: 1; }

/* export sheet */
.export-progress { padding: 8px 0 4px; }
.progress {
  height: 6px;
  border-radius: 3px;
  background: var(--surface-3);
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  width: 0;
  background: var(--accent);
  border-radius: 3px;
  transition: width .2s linear;
}
.progress-meta {
  display: flex;
  justify-content: space-between;
  margin: 10px 0 18px;
  font: 600 12px/1 var(--mono);
  color: var(--muted);
}
.export-done { display: grid; gap: 10px; }
.export-preview {
  display: block;
  width: 100%;
  max-height: 42vh;
  object-fit: contain;
  border-radius: 8px;
  background: #000;
  -webkit-touch-callout: default;
  -webkit-user-select: auto;
  user-select: auto;
}
.export-hint { margin: 0; text-align: center; font-size: 12px; color: var(--muted); }
.export-meta {
  display: flex;
  justify-content: center;
  gap: 14px;
  font: 600 11px/1 var(--mono);
  letter-spacing: .06em;
  color: var(--text-2);
  margin: 2px 0 4px;
  flex-wrap: wrap;
}
.export-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.export-actions .btn { min-height: 48px; border-radius: 12px; }
.export-actions .btn:only-child { grid-column: 1 / -1; }

/* ------------------------------------------------------------------ toasts */

.toasts {
  position: fixed;
  left: 0; right: 0;
  top: calc(var(--sat) + 62px);
  z-index: 200;
  display: grid;
  justify-items: center;
  gap: 8px;
  pointer-events: none;
  padding: 0 calc(16px + var(--sar)) 0 calc(16px + var(--sal));
}
.toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 440px;
  padding: 10px 10px 10px 16px;
  min-height: 44px;
  border-radius: 12px;
  background: rgba(36, 32, 28, .96);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, .5), 0 0 0 1px var(--line-2);
  font-size: 14px;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity .2s, transform .25s var(--ease);
}
.toast.is-in { opacity: 1; transform: none; }
.toast-error { box-shadow: 0 8px 30px rgba(0, 0, 0, .5), 0 0 0 1px rgba(255, 107, 74, .45); }
.toast-msg { flex: 1; padding-right: 4px; }
.toast-action {
  border: 0;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
  font-size: 13px;
  border-radius: 8px;
  min-height: 32px;
  padding: 0 12px;
}

/* ---------------------------------------------------- landscape phone / wide */

@media (orientation: landscape) and (max-height: 600px) {
  :root { --pane-h: auto; }
  .app {
    grid-template-columns: minmax(0, 1fr) calc(330px + var(--sar));
    grid-template-rows: auto minmax(0, 1fr);
    grid-template-areas: "top panel" "stage panel";
  }
  .topbar { padding: calc(var(--sat) + 2px) 8px 2px calc(var(--sal) + 6px); border-bottom: 0; background: var(--bg); }
  .panel {
    border-top: 0;
    border-left: 1px solid var(--line);
    padding: var(--sat) var(--sar) var(--sab) 0;
  }
  .panes { flex: 1; min-height: 0; }
  .stage { margin-left: var(--sal); }
  .toasts { top: calc(var(--sat) + 56px); right: calc(330px + var(--sar)); }
  .empty { padding: 12px 24px; }
  .empty-logo { display: none; }
  .empty-actions { flex-direction: row; width: auto; }
  .sheet { max-width: 520px; }
}

@media (min-width: 900px) and (min-height: 601px) {
  .app {
    grid-template-columns: minmax(0, 1fr) 380px;
    grid-template-rows: auto minmax(0, 1fr);
    grid-template-areas: "top top" "stage panel";
  }
  .panel { border-top: 0; border-left: 1px solid var(--line); }
  :root { --pane-h: auto; }
  .panes { flex: 1; min-height: 0; }
  .sheet { bottom: 50%; transform: translateY(60%); opacity: 0; border-radius: 18px; transition: transform .28s var(--ease), opacity .2s; }
  .sheet-layer.is-open .sheet { transform: translateY(50%); opacity: 1; }
  .sheet-grab { visibility: hidden; height: 10px; }
}

@media (hover: hover) {
  .icon-btn:hover { background: rgba(255, 255, 255, 0.06); color: var(--text); }
  .chip:hover { border-color: var(--text-2); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}