/* =========================================================
   Glitchify — compact glass UI
   ========================================================= */

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

:root {
  --bg: #07080d;
  --panel: rgba(14, 16, 25, 0.78);
  --panel-solid: #10121c;
  --surface: rgba(255, 255, 255, 0.035);
  --surface-2: rgba(255, 255, 255, 0.06);
  --surface-3: rgba(255, 255, 255, 0.1);
  --line: rgba(255, 255, 255, 0.07);
  --line-strong: rgba(255, 255, 255, 0.14);
  --text: #eef0fa;
  --text-dim: #9097b0;
  --text-mute: #626884;
  --accent: #8b5cf6;
  --accent-2: #22d3ee;
  --accent-glow: rgba(139, 92, 246, 0.45);
  --danger: #f87171;
  --ch-r: #ff4d6d;
  --ch-g: #3ddc84;
  --ch-b: #4d9bff;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 255, 255, 0.04) inset;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background:
    radial-gradient(1200px 600px at 0% 0%, rgba(139, 92, 246, 0.16), transparent 60%),
    radial-gradient(900px 500px at 0% 100%, rgba(34, 211, 238, 0.07), transparent 60%),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 13px;
  -webkit-font-smoothing: antialiased;
}

button,
input,
select {
  font: inherit;
  color: inherit;
}

button {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 2px;
}

svg.lucide {
  width: 15px;
  height: 15px;
  stroke-width: 2;
  flex: 0 0 auto;
}

.hidden {
  display: none !important;
}

/* Scrollbars */
* {
  scrollbar-width: thin;
  scrollbar-color: #2a2d3a transparent;
}
*::-webkit-scrollbar { width: 8px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb { background: #2a2d3a; border-radius: 999px; border: 2px solid transparent; background-clip: padding-box; }
*::-webkit-scrollbar-thumb:hover { background-color: #3a3e50; }

/* =========================================================
   Stage
   ========================================================= */

.app-shell {
  position: relative;
  width: 100%;
  height: 100%;
}

.stage {
  position: absolute;
  inset: 0 368px 0 0;
  overflow: hidden;
  transition: inset 0.35s var(--ease);
}

.app-shell.panel-hidden .stage {
  inset: 0;
}

#glCanvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
  background:
    linear-gradient(45deg, rgba(255,255,255,0.02) 25%, transparent 25%, transparent 75%, rgba(255,255,255,0.02) 75%),
    linear-gradient(45deg, rgba(255,255,255,0.02) 25%, transparent 25%, transparent 75%, rgba(255,255,255,0.02) 75%);
  background-size: 28px 28px;
  background-position: 0 0, 14px 14px;
}

.stage.can-drag #glCanvas { cursor: grab; }
.stage.is-dragging #glCanvas { cursor: grabbing; }

.canvas-hud,
.compare-badge {
  position: absolute;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(10, 12, 20, 0.8);
  border: 1px solid var(--line-strong);
  backdrop-filter: blur(12px);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text);
  pointer-events: none;
  z-index: 15;
  white-space: nowrap;
}

.compare-badge {
  top: 18px;
  bottom: auto;
  font-family: inherit;
  font-weight: 600;
}

.canvas-hud .swatch {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--sw, #fff);
  box-shadow: 0 0 8px var(--sw, #fff);
}

/* Drop zone */
.drop-zone {
  position: absolute;
  inset: 12px;
  z-index: 20;
  display: grid;
  place-items: center;
  border-radius: 20px;
  background: rgba(7, 8, 13, 0.72);
  border: 2px dashed rgba(139, 92, 246, 0.5);
  backdrop-filter: blur(8px);
  animation: fade-in 0.2s ease;
}

.drop-zone__inner {
  padding: 26px 34px;
  text-align: center;
}

.drop-zone__icon svg.lucide,
svg.lucide.drop-zone__icon {
  width: 42px;
  height: 42px;
  color: var(--accent);
  margin-bottom: 8px;
}

.drop-zone__inner h2 {
  margin: 0 0 4px;
  font-size: 22px;
}

.drop-zone__inner p {
  margin: 0;
  color: var(--text-dim);
}

/* =========================================================
   Panel
   ========================================================= */

.control-panel {
  position: absolute;
  top: 10px;
  right: 10px;
  bottom: 10px;
  width: 348px;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
  backdrop-filter: blur(24px) saturate(140%);
  -webkit-backdrop-filter: blur(24px) saturate(140%);
  box-shadow: var(--shadow);
  overflow: hidden;
  user-select: none;
  z-index: 10;
  transition: transform 0.35s var(--ease), opacity 0.25s ease;
}

.control-panel.is-hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateX(calc(100% + 20px));
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 12px 10px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brand__mark {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 6px 18px var(--accent-glow);
  color: #fff;
}

.brand__mark svg.lucide { width: 16px; height: 16px; }

.brand h1 {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.1;
}

.brand__tag {
  display: block;
  font-size: 11px;
  color: var(--text-mute);
  line-height: 1.3;
}

.panel-header-tools {
  display: flex;
  gap: 2px;
}

.header-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  padding: 0 12px 10px;
  border-bottom: 1px solid var(--line);
}

.panel-body {
  flex: 1 1 auto;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 10px 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.panel-footer {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 6px;
  padding: 10px 12px;
  border-top: 1px solid var(--line);
  background: rgba(10, 12, 20, 0.4);
}

/* =========================================================
   Buttons
   ========================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  height: 34px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-2);
  color: var(--text);
  font-size: 12.5px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.1s ease, box-shadow 0.15s ease;
}

.btn:hover { background: var(--surface-3); border-color: var(--line-strong); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.6; cursor: progress; }

.btn--primary {
  background: linear-gradient(135deg, #8b5cf6, #7c3aed);
  border-color: rgba(255, 255, 255, 0.12);
  color: #fff;
  box-shadow: 0 4px 14px rgba(124, 58, 237, 0.35);
}
.btn--primary:hover { background: linear-gradient(135deg, #9d74f8, #8b5cf6); box-shadow: 0 6px 20px rgba(124, 58, 237, 0.5); }

.btn--danger {
  color: #fecaca;
  background: rgba(248, 113, 113, 0.08);
  border-color: rgba(248, 113, 113, 0.22);
}
.btn--danger:hover { background: rgba(248, 113, 113, 0.18); border-color: rgba(248, 113, 113, 0.4); }

.btn--danger-solid {
  color: #fff;
  background: #dc2626;
  border-color: rgba(255, 255, 255, 0.12);
}
.btn--danger-solid:hover { background: #ef4444; }

.btn__icon { display: inline-flex; }

.icon-btn {
  width: 30px;
  height: 30px;
  display: inline-grid;
  place-items: center;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 9px;
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.icon-btn:hover { background: var(--surface-2); color: var(--text); }
.icon-btn.is-active { background: var(--surface-3); color: var(--accent-2); }

.icon-btn--square {
  width: 34px;
  height: 34px;
  border-color: var(--line);
  background: var(--surface-2);
  color: var(--text);
}
.icon-btn--square:hover { border-color: var(--line-strong); background: var(--surface-3); }
.icon-btn--square:active svg { transform: rotate(-30deg); }
.icon-btn--square svg { transition: transform 0.2s var(--ease); }

.panel-launcher {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  z-index: 30;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  backdrop-filter: blur(16px);
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  animation: fade-in 0.3s ease;
}
.panel-launcher:hover { border-color: var(--accent); color: #fff; }
.panel-launcher svg.lucide { width: 18px; height: 18px; }

/* Chips (toggle pills) */
.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 28px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text-dim);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}
.chip:hover { color: var(--text); border-color: var(--line-strong); background: var(--surface-2); }
.chip svg.lucide { width: 13px; height: 13px; }

.chip--on,
.chip.is-active {
  color: #fff;
  border-color: rgba(139, 92, 246, 0.55);
  background: rgba(139, 92, 246, 0.2);
  box-shadow: 0 0 0 1px rgba(139, 92, 246, 0.15) inset, 0 0 14px rgba(139, 92, 246, 0.2);
}
.chip--off { color: var(--danger); border-color: rgba(248, 113, 113, 0.3); background: rgba(248, 113, 113, 0.08); }

.chip--sm { height: 24px; padding: 0 8px; font-size: 11px; gap: 4px; }
.chip--sm svg.lucide { width: 12px; height: 12px; }

.spin { animation: spin 0.8s linear infinite; }

/* =========================================================
   Blocks & sections
   ========================================================= */

.block {
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.block__title {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-mute);
}

.preset-row {
  display: flex;
  gap: 6px;
}

.select-wrap {
  position: relative;
  flex: 1 1 auto;
}

.select-control {
  width: 100%;
  height: 34px;
  padding: 0 32px 0 11px;
  font-size: 12.5px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--text);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  transition: border-color 0.15s ease;
}
.select-control:hover { border-color: var(--line-strong); }
.select-control:focus-visible { border-color: var(--accent); outline: none; box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2); }
.select-control option,
.select-control optgroup { background: var(--panel-solid); color: var(--text); }

.select-wrap__chev,
svg.select-wrap__chev {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--text-dim);
}

.global-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

/* Collapsible effect modules */
.fx {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  transition: border-color 0.2s ease, background 0.2s ease;
}
.fx[open] { background: rgba(255, 255, 255, 0.045); }
.fx.is-active { border-color: rgba(139, 92, 246, 0.28); }

.fx__head {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  padding: 0 6px 0 10px;
  cursor: pointer;
  border-radius: var(--radius);
}
.fx__head::-webkit-details-marker { display: none; }
.fx__head:hover .fx__name { color: var(--text); }

.fx__icon,
svg.fx__icon { color: var(--text-dim); }
.fx.is-active svg.fx__icon { color: var(--accent-2); }

.fx__name {
  font-size: 12.5px;
  font-weight: 600;
  color: #d5d8e8;
  transition: color 0.15s ease;
}

.fx__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: transparent;
  transition: background 0.2s ease, box-shadow 0.2s ease;
}
.fx.is-active .fx__dot {
  background: var(--accent-2);
  box-shadow: 0 0 8px var(--accent-2);
}

.fx__reset {
  margin-left: auto;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--text-mute);
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.fx__reset svg.lucide { width: 13px; height: 13px; }
.fx:hover .fx__reset,
.fx__reset:focus-visible { opacity: 1; }
.fx__reset:hover { background: var(--surface-2); color: var(--text); }
.fx__reset:active svg { transform: rotate(-120deg); transition: transform 0.25s var(--ease); }

.fx__chev,
svg.fx__chev {
  color: var(--text-mute);
  transition: transform 0.25s var(--ease);
  margin-right: 2px;
}
.fx[open] svg.fx__chev { transform: rotate(180deg); }

.fx__body {
  padding: 2px 10px 10px;
}
.fx[open] .fx__body { animation: slide-down 0.25s var(--ease); }

.grid2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 12px;
}

.grid3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 10px;
}

/* =========================================================
   Slider control
   ========================================================= */

.ctl { min-width: 0; }
.ctl--wide { grid-column: 1 / -1; }

.ctl__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px;
  margin-bottom: 2px;
}

.ctl__row label {
  font-size: 11.5px;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ctl__row output {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--text);
  opacity: 0.85;
  font-variant-numeric: tabular-nums;
}

input[type="range"] {
  --fill: 0%;
  --c: var(--accent);
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 16px;
  margin: 0;
  background: transparent;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(to right, var(--c) 0, var(--c) var(--fill), rgba(255, 255, 255, 0.09) var(--fill));
}
input[type="range"]::-moz-range-track {
  height: 4px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.09);
}
input[type="range"]::-moz-range-progress {
  height: 4px;
  border-radius: 999px;
  background: var(--c);
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  margin-top: -4px;
  border-radius: 50%;
  background: #fff;
  border: 0;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--c) 45%, transparent), 0 2px 6px rgba(0, 0, 0, 0.5);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
input[type="range"]::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #fff;
  border: 0;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--c) 45%, transparent), 0 2px 6px rgba(0, 0, 0, 0.5);
}

input[type="range"]:hover::-webkit-slider-thumb { transform: scale(1.15); }
input[type="range"]:active::-webkit-slider-thumb {
  transform: scale(1.25);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--c) 55%, transparent), 0 0 14px var(--c);
}
input[type="range"]:focus-visible { outline: none; }
input[type="range"]:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 3px var(--accent-2); }

.ctl--r input[type="range"] { --c: var(--ch-r); }
.ctl--g input[type="range"] { --c: var(--ch-g); }
.ctl--b input[type="range"] { --c: var(--ch-b); }

/* =========================================================
   Chromatic pad
   ========================================================= */

.chroma {
  display: grid;
  grid-template-columns: 136px 1fr;
  gap: 12px;
  align-items: stretch;
}

.pad {
  position: relative;
  width: 136px;
  height: 136px;
  border-radius: 12px;
  border: 1px solid var(--line-strong);
  background:
    linear-gradient(to right, transparent calc(50% - 0.5px), rgba(255,255,255,0.12) calc(50% - 0.5px), rgba(255,255,255,0.12) calc(50% + 0.5px), transparent calc(50% + 0.5px)),
    linear-gradient(to bottom, transparent calc(50% - 0.5px), rgba(255,255,255,0.12) calc(50% - 0.5px), rgba(255,255,255,0.12) calc(50% + 0.5px), transparent calc(50% + 0.5px)),
    repeating-radial-gradient(circle at 50% 50%, transparent 0 16px, rgba(255,255,255,0.05) 16px 17px),
    radial-gradient(circle at 50% 50%, rgba(139, 92, 246, 0.12), rgba(5, 6, 10, 0.6) 70%);
  overflow: hidden;
  touch-action: none;
  cursor: crosshair;
}

.pad__vectors {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.vec {
  stroke-width: 1.4;
  vector-effect: non-scaling-stroke;
  stroke-linecap: round;
  opacity: 0.85;
}
.vec--r { stroke: var(--ch-r); }
.vec--g { stroke: var(--ch-g); }
.vec--b { stroke: var(--ch-b); }

.pad__center {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 10px;
  height: 10px;
  padding: 0;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.15);
  cursor: pointer;
  z-index: 1;
}
.pad__center:hover { background: #fff; box-shadow: 0 0 10px #fff; }

.puck {
  --pc: #fff;
  position: absolute;
  left: 50%;
  top: 50%;
  width: 16px;
  height: 16px;
  padding: 0;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.9);
  background: var(--pc);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--pc) 25%, transparent), 0 0 12px var(--pc);
  cursor: grab;
  z-index: 2;
  mix-blend-mode: screen;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.puck--r { --pc: var(--ch-r); }
.puck--g { --pc: var(--ch-g); }
.puck--b { --pc: var(--ch-b); }
.puck.is-selected {
  z-index: 3;
  transform: translate(-50%, -50%) scale(1.2);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--pc) 35%, transparent), 0 0 18px var(--pc);
}
.puck:active { cursor: grabbing; }
.puck:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }

.chroma__side {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 8px;
  min-width: 0;
}

.seg {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 3px;
  gap: 3px;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--line);
}

.seg__btn {
  --sc: #fff;
  height: 26px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--text-dim);
  font-weight: 700;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s ease;
}
.seg__btn--r { --sc: var(--ch-r); }
.seg__btn--g { --sc: var(--ch-g); }
.seg__btn--b { --sc: var(--ch-b); }
.seg__btn:hover { color: var(--sc); }
.seg__btn.is-active {
  color: #fff;
  background: color-mix(in srgb, var(--sc) 30%, transparent);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--sc) 60%, transparent) inset, 0 0 12px color-mix(in srgb, var(--sc) 35%, transparent);
}

.readout {
  display: grid;
  grid-template-columns: auto 1fr auto 1fr;
  align-items: center;
  gap: 4px 6px;
  padding: 6px 8px;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
}
.readout span { color: var(--text-mute); }
.readout b { font-weight: 500; color: var(--text); text-align: right; font-variant-numeric: tabular-nums; }

.chroma__tools {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

/* =========================================================
   Toasts
   ========================================================= */

.toast-stack {
  position: fixed;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 60;
  pointer-events: none;
}

.app-shell:not(.panel-hidden) .toast-stack {
  left: calc((100% - 368px) / 2);
}

.toast {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 220px;
  max-width: min(420px, 90vw);
  padding: 9px 14px 9px 10px;
  border-radius: 12px;
  background: rgba(16, 18, 28, 0.9);
  border: 1px solid var(--line-strong);
  backdrop-filter: blur(16px);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.5);
  font-size: 12.5px;
  color: var(--text);
  pointer-events: auto;
  animation: toast-in 0.35s var(--ease);
}
.toast.is-leaving { animation: toast-out 0.25s ease forwards; }

.toast__icon {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 7px;
  background: var(--surface-2);
  flex: 0 0 auto;
}
.toast--success .toast__icon { color: var(--ch-g); background: rgba(61, 220, 132, 0.12); }
.toast--error .toast__icon { color: var(--danger); background: rgba(248, 113, 113, 0.12); }
.toast--loading .toast__icon { color: var(--accent-2); background: rgba(34, 211, 238, 0.12); }
.toast--info .toast__icon { color: var(--accent); background: rgba(139, 92, 246, 0.14); }

/* =========================================================
   Modals
   ========================================================= */

.modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(5, 6, 10, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  animation: fade-in 0.2s ease;
}

.modal__card {
  width: min(560px, 100%);
  max-height: min(86vh, 760px);
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(22, 25, 38, 0.98), rgba(14, 16, 25, 0.98));
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(139, 92, 246, 0.08);
  overflow: hidden;
  animation: modal-in 0.35s var(--ease);
}
.modal__card--sm { width: min(400px, 100%); }

.modal__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 14px 12px 16px;
  border-bottom: 1px solid var(--line);
}

.modal__title { display: flex; align-items: center; gap: 10px; }
.modal__title h2 { margin: 0; font-size: 15px; font-weight: 600; }

.modal__badge {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  background: rgba(139, 92, 246, 0.16);
  color: var(--accent);
}
.modal__badge--danger { background: rgba(248, 113, 113, 0.14); color: var(--danger); }

.modal__body {
  overflow-y: auto;
  padding: 14px 16px 16px;
  color: var(--text-dim);
  line-height: 1.55;
  font-size: 12.5px;
}
.modal__body p { margin: 0 0 10px; }
.modal__body p:last-child { margin-bottom: 0; }
.modal__body .lead { color: var(--text); }
.modal__body h3 {
  margin: 16px 0 8px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-mute);
}
.modal__body b { color: var(--text); font-weight: 600; }

.feature-list,
.tips {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.feature-list li {
  display: flex;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 10px;
  background: var(--surface);
  border: 1px solid var(--line);
}
.feature-list svg.lucide { color: var(--accent-2); margin-top: 2px; }
.tips li { padding-left: 14px; position: relative; }
.tips li::before { content: ""; position: absolute; left: 2px; top: 8px; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }

.shortcuts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 14px;
}
.shortcuts > div { display: flex; align-items: center; gap: 4px; }
.shortcuts span { margin-left: 6px; }

kbd {
  display: inline-grid;
  place-items: center;
  min-width: 22px;
  height: 20px;
  padding: 0 6px;
  border-radius: 5px;
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  background: var(--surface-2);
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--text);
}

.modal__foot {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.15);
}

.icon-btn--ghost:hover { background: var(--surface-2); }

/* =========================================================
   Animations
   ========================================================= */

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes slide-down { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }
@keyframes modal-in { from { opacity: 0; transform: translateY(10px) scale(0.97); } to { opacity: 1; transform: none; } }
@keyframes toast-in { from { opacity: 0; transform: translateY(-12px) scale(0.96); } to { opacity: 1; transform: none; } }
@keyframes toast-out { to { opacity: 0; transform: translateY(-8px) scale(0.96); } }

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

/* =========================================================
   Responsive
   ========================================================= */

@media (max-width: 960px) {
  .stage { inset: 0 0 52vh 0; }
  .app-shell.panel-hidden .stage { inset: 0; }

  .control-panel {
    top: auto;
    left: 8px;
    right: 8px;
    bottom: 8px;
    width: auto;
    height: calc(52vh - 16px);
  }
  .control-panel.is-hidden { transform: translateY(calc(100% + 20px)); }

  .app-shell:not(.panel-hidden) .toast-stack { left: 50%; }
  .brand__tag { display: none; }
}