/* ─── Design Tokens ─── */
/* NOTE: 3D GIF Maker CSS vars (--fx-*) are set dynamically in cssVars() */
:root {
  color-scheme: dark;
  --ease: cubic-bezier(.2,.8,.2,1);
  --radius: 14px;
  --c1: #21d4fd; --c2: #fe718d; --c3: #ffc857; --c4: #5dd39e; --c5: #7a5cff;
}

/* Catppuccin Frappé */
:root[data-flavor=frappe] {
  --base:#303446;--mantle:#292c3c;--crust:#232634;
  --surface0:#414559;--surface1:#51576d;--surface2:#626880;
  --overlay0:#737994;--overlay1:#838ba7;--overlay2:#949cbb;
  --text:#c6d0f5;--subtext0:#a5adce;--subtext1:#b5bfe2;
  --rosewater:#f2d5cf;--flamingo:#eebebe;--pink:#f4b8e4;--mauve:#ca9ee6;
  --redtone:#e78284;--maroon:#ea999c;--peach:#ef9f76;--yellow:#e5c890;
  --green:#a6d189;--teal:#81c8be;--sky:#99d1db;--sapphire:#85c1dc;
  --blue:#8caaee;--lavender:#babbf1;
}

/* Catppuccin Macchiato */
:root[data-flavor=macchiato] {
  --base:#24273a;--mantle:#1e2030;--crust:#181926;
  --surface0:#363a4f;--surface1:#494d64;--surface2:#5b6078;
  --overlay0:#6e738d;--overlay1:#8087a2;--overlay2:#939ab7;
  --text:#cad3f5;--subtext0:#a5adcb;--subtext1:#b8c0e0;
  --rosewater:#f4dbd6;--flamingo:#f0c6c6;--pink:#f5bde6;--mauve:#c6a0f6;
  --redtone:#ed8796;--maroon:#ee99a0;--peach:#f5a97f;--yellow:#eed49f;
  --green:#a6da95;--teal:#8bd5ca;--sky:#91d7e3;--sapphire:#7dc4e4;
  --blue:#8aadf4;--lavender:#b7bdf8;
}

/* Catppuccin Mocha */
:root[data-flavor=mocha] {
  --base:#1e1e2e;--mantle:#181825;--crust:#11111b;
  --surface0:#313244;--surface1:#45475a;--surface2:#585b70;
  --overlay0:#6c7086;--overlay1:#7f849c;--overlay2:#9399b2;
  --text:#cdd6f4;--subtext0:#a6adc8;--subtext1:#bac2de;
  --rosewater:#f5e0dc;--flamingo:#f2cdcd;--pink:#f5c2e7;--mauve:#cba6f7;
  --redtone:#f38ba8;--maroon:#eba0ac;--peach:#fab387;--yellow:#f9e2af;
  --green:#a6e3a1;--teal:#94e2d5;--sky:#89dceb;--sapphire:#74c7ec;
  --blue:#89b4fa;--lavender:#b4befe;
}

/* Semantic tokens */
:root {
  --accent: var(--pink);
  --accent-glow: color-mix(in srgb, var(--accent) 28%, transparent);
  --flare-left: var(--accent);
  --flare-right: var(--teal);
  --flare-bottom: var(--lavender);
  --line: color-mix(in srgb, var(--overlay0) 34%, transparent);
  --panel: color-mix(in srgb, var(--surface0) 68%, transparent);
  --input-bg: color-mix(in srgb, var(--base) 72%, transparent);
  --shadow: 0 24px 80px color-mix(in srgb, var(--crust) 70%, transparent);
}

/* Accent variants */
:root[data-accent=rosewater]{--accent:var(--rosewater);--flare-right:var(--sky);--flare-bottom:var(--mauve)}
:root[data-accent=flamingo]{--accent:var(--flamingo);--flare-right:var(--sapphire);--flare-bottom:var(--lavender)}
:root[data-accent=pink]{--accent:var(--pink);--flare-right:var(--teal);--flare-bottom:var(--lavender)}
:root[data-accent=mauve]{--accent:var(--mauve);--flare-right:var(--peach);--flare-bottom:var(--sky)}
:root[data-accent=red]{--accent:var(--redtone);--flare-right:var(--teal);--flare-bottom:var(--lavender)}
:root[data-accent=maroon]{--accent:var(--maroon);--flare-right:var(--sky);--flare-bottom:var(--mauve)}
:root[data-accent=peach]{--accent:var(--peach);--flare-right:var(--blue);--flare-bottom:var(--pink)}
:root[data-accent=yellow]{--accent:var(--yellow);--flare-right:var(--sapphire);--flare-bottom:var(--rosewater)}
:root[data-accent=green]{--accent:var(--green);--flare-right:var(--pink);--flare-bottom:var(--sky)}
:root[data-accent=teal]{--accent:var(--teal);--flare-right:var(--peach);--flare-bottom:var(--lavender)}
:root[data-accent=sky]{--accent:var(--sky);--flare-right:var(--peach);--flare-bottom:var(--pink)}
:root[data-accent=sapphire]{--accent:var(--sapphire);--flare-right:var(--peach);--flare-bottom:var(--rosewater)}
:root[data-accent=blue]{--accent:var(--blue);--flare-right:var(--peach);--flare-bottom:var(--pink)}
:root[data-accent=lavender]{--accent:var(--lavender);--flare-right:var(--peach);--flare-bottom:var(--teal)}

/* ─── Base Reset ─── */
*, *::before, *::after { box-sizing: border-box; }

html {
  height: 100%;
  background: var(--base);
  color: var(--text);
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  margin: 0;
  font: 13px/1.4 Aptos, Manrope, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 14% -4%, color-mix(in srgb, var(--flare-left)   28%, transparent), transparent 32rem),
    radial-gradient(circle at 86% 0%,  color-mix(in srgb, var(--flare-right)  21%, transparent), transparent 34rem),
    radial-gradient(circle at 50% 105%,color-mix(in srgb, var(--flare-bottom) 16%, transparent), transparent 30rem),
    linear-gradient(135deg, var(--base), var(--mantle) 54%, var(--crust));
}

body::before {
  content: '';
  pointer-events: none;
  opacity: .10;
  mix-blend-mode: soft-light;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 120 120' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
  position: fixed;
  inset: 0;
}

button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

/* ─── Buttons ─── */
button {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: color-mix(in srgb, var(--surface0) 72%, transparent);
  color: var(--text);
  font-weight: 700;
  padding: 7px 10px;
  cursor: pointer;
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--text) 7%, transparent);
  transition: transform .16s var(--ease), border-color .16s var(--ease),
              background .16s var(--ease), box-shadow .16s var(--ease);
}
button:hover {
  border-color: color-mix(in srgb, var(--accent) 54%, var(--line));
  background: color-mix(in srgb, var(--surface1) 74%, transparent);
  transform: translateY(-1px);
}
button:focus-visible,
input:focus-visible,
select:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ─── Form inputs ─── */
input:not([type=range]):not([type=color]):not([type=checkbox]),
select {
  height: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text);
  padding: 0 8px;
  min-width: 0;
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--text) 5%, transparent);
}

input::placeholder { color: color-mix(in srgb, var(--subtext0) 80%, transparent); }
option            { background: var(--mantle); color: var(--text); }
select optgroup   { background: var(--mantle); color: var(--accent); font-weight: 900; }
#animation option,
#wrapperAnimation option { background: var(--mantle); color: var(--text); }
#libraryFilter option[value="3D GIF Maker-style"] { color: var(--peach); font-weight: 900; }

input[type=color] {
  width: 100%;
  height: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--input-bg);
  padding: 2px;
  cursor: pointer;
}

input[type=range] {
  accent-color: var(--accent);
  height: 18px;
  min-width: 0;
  width: 100%;
  cursor: pointer;
  display: block;
}

/* ─── Studio Layout ─── */
.studio {
  position: relative;
  max-width: 1600px;
  margin: 0 auto;
  padding: 18px 20px 32px;
}

/* ─── Header ─── */
.hero {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: 16px;
}

.hero-brand h1 {
  font-size: 26px;
  line-height: 1;
  margin: 0 0 4px;
  font-weight: 900;
  letter-spacing: -.04em;
  color: color-mix(in srgb, var(--text) 92%, var(--accent));
}

.hero-brand p {
  margin: 0;
  color: var(--subtext1);
  font-size: 12px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.status {
  background: color-mix(in srgb, var(--mantle) 72%, transparent);
  border: 1px solid var(--line);
  backdrop-filter: blur(18px) saturate(145%);
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 11px;
  font-weight: 700;
  color: var(--subtext1);
  white-space: nowrap;
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--text) 8%, transparent);
}

.theme-dock {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px;
  border: 1px solid color-mix(in srgb, var(--accent) 24%, var(--line));
  border-radius: 18px;
  background: color-mix(in srgb, var(--mantle) 76%, transparent);
  backdrop-filter: blur(20px) saturate(150%);
  box-shadow:
    0 14px 40px color-mix(in srgb, var(--crust) 28%, transparent),
    inset 0 1px 0 color-mix(in srgb, var(--text) 8%, transparent);
}

.icon-button {
  min-height: 36px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px 10px;
}

.theme-button,
.accent-button {
  min-width: 110px;
  isolation: isolate;
  color: color-mix(in srgb, var(--text) 90%, var(--accent));
  border-color: color-mix(in srgb, var(--accent) 36%, var(--line));
  background:
    radial-gradient(circle at 50% 18%, color-mix(in srgb, var(--accent) 15%, transparent), transparent 40%),
    color-mix(in srgb, var(--surface0) 70%, transparent);
  box-shadow:
    inset 0 1px 0 color-mix(in srgb, var(--text) 12%, transparent),
    0 10px 30px color-mix(in srgb, var(--crust) 34%, transparent);
}

.theme-button b, .accent-button b {
  font-size: 11px;
  text-transform: lowercase;
  color: var(--accent);
  font-weight: 900;
}

.theme-icon   { font-size: 15px; line-height: 1; color: var(--accent); }
.btn-copy     { font-size: 10px; letter-spacing: .06em; text-transform: uppercase; color: var(--subtext0); font-weight: 900; }
.accent-dot   {
  width: 13px; height: 13px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow:
    0 0 0 3px color-mix(in srgb, var(--accent) 14%, transparent),
    0 0 14px color-mix(in srgb, var(--accent) 34%, transparent);
}

/* ─── Editor Card ─── */
.editor-card {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 14px;
  background:
    linear-gradient(135deg,
      color-mix(in srgb, var(--surface0) 74%, transparent),
      color-mix(in srgb, var(--base) 34%, transparent)),
    color-mix(in srgb, var(--mantle) 78%, transparent);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 14px;
  box-shadow: var(--shadow), inset 0 1px 0 color-mix(in srgb, var(--text) 8%, transparent);
  backdrop-filter: blur(22px) saturate(145%);
}

/* ─── Preview Column ─── */
.preview-column {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.preview-toolbar {
  display: flex;
  gap: 6px;
  align-items: center;
}

.preview-toolbar button {
  padding: 6px 10px;
  font-size: 12px;
}

.loop-badge {
  margin-left: auto;
  background: color-mix(in srgb, var(--accent) 14%, var(--surface0));
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  border-radius: 999px;
  padding: 4px 9px;
  font-size: 10px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .05em;
}

/* Dynamic height canvas wrap — height set by JS */
.canvas-wrap {
  min-height: 120px;
  border-radius: 18px;
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  overflow: hidden;
  background: color-mix(in srgb, var(--base) 56%, transparent);
  position: relative;
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--text) 6%, transparent);
  transition: height .25s var(--ease);
}

.canvas-wrap.dragover {
  outline: 3px solid color-mix(in srgb, var(--accent) 48%, transparent);
  outline-offset: -8px;
}

.checker {
  background-color: color-mix(in srgb, var(--base) 52%, transparent);
  background-image:
    linear-gradient(45deg,  color-mix(in srgb, var(--surface1) 50%, transparent) 25%, transparent 25%),
    linear-gradient(-45deg, color-mix(in srgb, var(--surface1) 50%, transparent) 25%, transparent 25%),
    linear-gradient(45deg,  transparent 75%, color-mix(in srgb, var(--surface1) 50%, transparent) 75%),
    linear-gradient(-45deg, transparent 75%, color-mix(in srgb, var(--surface1) 50%, transparent) 75%);
  background-size: 22px 22px;
  background-position: 0 0, 0 11px, 11px -11px, -11px 0;
}

.preview-stage {
  display: grid;
  place-items: center;
  overflow: hidden;
  background: var(--preview-bg, #fff);
  border-radius: 10px;
  box-shadow: 0 14px 40px color-mix(in srgb, var(--crust) 44%, transparent);
  position: relative;
  /* width / height set dynamically in applyPreview() */
}

.preview-stage::after {
  content: attr(data-size);
  position: absolute;
  right: 6px; bottom: 6px;
  background: color-mix(in srgb, var(--mantle) 78%, transparent);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 2px 6px;
  font-size: 9px;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
  color: var(--subtext1);
}

.asset-wrap, .asset-shell { display: grid; place-items: center; }
.asset-shell { position: relative; }

.asset {
  max-width: 86%;
  max-height: 86%;
  display: block;
  color: var(--c1);
}

.placeholder-source {
  font: 800 14px system-ui;
  color: var(--subtext0);
  background: color-mix(in srgb, var(--surface0) 74%, transparent);
  border: 1px dashed color-mix(in srgb, var(--overlay1) 46%, transparent);
  border-radius: 12px;
  padding: 18px 22px;
  text-align: center;
}

.source-row {
  display: grid;
  grid-template-columns: 1fr 148px;
  gap: 8px;
}

.file-drop {
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px dashed color-mix(in srgb, var(--accent) 44%, var(--line));
  background: color-mix(in srgb, var(--accent) 10%, var(--surface0));
  border-radius: 10px;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  cursor: pointer;
  transition: background .14s var(--ease), border-color .14s var(--ease);
}
.file-drop:hover { background: color-mix(in srgb, var(--accent) 18%, var(--surface0)); }
.file-drop input { display: none; }
.source-row select { padding: 0 8px; }

/* ─── Controls Column ─── */
.controls-column {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

/* ─── Control Section (card) ─── */
.ctrl-section {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}

.ctrl-section-label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--subtext0);
  background: color-mix(in srgb, var(--mantle) 45%, transparent);
  border-bottom: 1px solid var(--line);
}

/* 3D sections — peach tint */
.section-3d {
  border-color: color-mix(in srgb, var(--peach) 22%, var(--line));
}
.section-3d .ctrl-section-label {
  color: var(--peach);
  background: color-mix(in srgb, var(--peach) 6%, color-mix(in srgb, var(--mantle) 45%, transparent));
}

.badge-scope {
  font-size: 9px;
  font-weight: 900;
  letter-spacing: .04em;
  background: color-mix(in srgb, var(--peach) 14%, var(--surface0));
  color: var(--peach);
  border: 1px solid color-mix(in srgb, var(--peach) 28%, transparent);
  border-radius: 999px;
  padding: 1px 7px;
}

/* ─── Control Group (label grid) ─── */
.ctrl-group {
  display: grid;
  gap: 8px;
  padding: 10px 12px;
  align-items: start;
}

.ctrl-group label,
.color-panel label,
.advanced-grid label {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.ctrl-group span,
.color-panel span,
.advanced-grid span {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .05em;
  font-weight: 800;
  color: var(--subtext0);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Column counts */
.g-anim     { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
.g-output   { grid-template-columns: repeat(auto-fill, minmax(115px, 1fr)); }
.g-maker    { grid-template-columns: repeat(auto-fill, minmax(148px, 1fr)); }
.g-advanced { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); }

/* span 2 cols (search field etc.) */
.span2 { grid-column: span 2; }

/* Exports: full row, 2x2 square grid */
.exports {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
}

.exports button {
  min-height: 48px;
  font-size: 13px;
  font-weight: 800;
}

.exports button:first-child {
  background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--peach) 80%, var(--accent)));
  color: var(--crust);
  border-color: color-mix(in srgb, var(--accent) 58%, var(--line));
  font-weight: 900;
  box-shadow: 0 8px 24px var(--accent-glow), inset 0 1px 0 color-mix(in srgb, white 24%, transparent);
}

/* ─── badge-info / export-only labels ─── */
.badge-info {
  font-size: 9px;
  color: var(--subtext0);
  margin-left: auto;
  cursor: help;
}
.export-only {
  font-size: 9px;
  color: var(--subtext0);
  font-weight: 600;
  margin-left: 2px;
  text-transform: none;
  letter-spacing: 0;
}

/* ─── Slider Row: range + number companion ─── */
.slider-row {
  display: grid;
  grid-template-columns: 1fr 52px;
  gap: 6px;
  align-items: center;
  min-width: 0;
}

.slider-val {
  height: 28px !important;
  padding: 0 4px !important;
  font-size: 11px !important;
  font-variant-numeric: tabular-nums;
  text-align: center;
  flex-shrink: 0;
}

/* ─── Check / Toggle ─── */
.check {
  display: flex !important;
  align-items: center;
  gap: 7px;
  height: 30px;
  background: color-mix(in srgb, var(--surface0) 58%, transparent);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 9px;
  font-weight: 700;
  font-size: 12px;
  color: var(--subtext1);
  cursor: pointer;
  align-self: end;
  user-select: none;
}
.check input {
  accent-color: var(--accent);
  cursor: pointer;
  width: 13px;
  height: 13px;
  flex-shrink: 0;
}

/* ─── Filter Chips ─── */
.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 10px 12px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface0) 60%, transparent);
  font-size: 11px;
  font-weight: 700;
  color: var(--subtext1);
  cursor: pointer;
  transition: background .12s var(--ease), border-color .12s var(--ease), color .12s var(--ease);
  user-select: none;
}

.chip input {
  accent-color: var(--accent);
  width: 12px;
  height: 12px;
  cursor: pointer;
  flex-shrink: 0;
}

.chip:has(input:checked) {
  background: color-mix(in srgb, var(--blue) 14%, var(--surface0));
  border-color: color-mix(in srgb, var(--blue) 40%, var(--line));
  color: var(--sky);
}

.chip:hover {
  background: color-mix(in srgb, var(--surface1) 70%, transparent);
}

/* ─── Color Panel ─── */
.color-panel {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 8px;
  padding: 10px 12px;
  align-items: start;
}

.palette-section {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.palette-label {
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--subtext0);
  display: flex;
  align-items: center;
  gap: 8px;
}

.palette-hint {
  font-size: 10px;
  font-weight: 600;
  color: var(--overlay1);
  text-transform: none;
  letter-spacing: 0;
  cursor: help;
}

.palette-row {
  height: 8px; /* decreased height significantly */
  width: 100%; /* keep full width, just thinner lines */
  border-radius: 4px;
  background: transparent;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  padding: 0;
  gap: 2px;
}

.palette-row i {
  border-radius: 4px;
  box-shadow: none;
  cursor: pointer;
  transition: opacity .12s var(--ease), transform .12s var(--ease);
}
.palette-row i:hover { transform: scaleY(1.5); }

/* Color label with hex companion */
.color-label {
  display: grid;
  grid-template-columns: 80px 1fr;
  align-items: center;
  gap: 8px;
}
.color-label > span {
  display: flex;
  align-items: center;
  gap: 6px;
}
  gap: 4px;
  min-width: 0;
}

.color-label span {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .05em;
  font-weight: 800;
  color: var(--subtext0);
}

.color-hex-row {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 4px;
  align-items: center;
}

.color-hex-row input[type=color] {
  width: 36px;
  height: 30px;
  padding: 2px;
  border-radius: 6px;
  flex-shrink: 0;
}

.hex-val {
  height: 30px !important;
  padding: 0 6px !important;
  font-size: 11px !important;
  font-variant-numeric: tabular-nums;
  font-family: ui-monospace, monospace;
  letter-spacing: .02em;
}

/* Sliders in color-panel span: same label style */
.color-panel > label {
  display: grid;
  gap: 4px;
  min-width: 0;
}
.color-panel > label > span {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .05em;
  font-weight: 800;
  color: var(--subtext0);
}

.full-row {
  grid-column: 1 / -1 !important;
}

/* ─── Advanced (details/summary) ─── */
.advanced summary {
  padding: 7px 12px;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--subtext0);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
  background: color-mix(in srgb, var(--mantle) 45%, transparent);
  transition: color .12s var(--ease);
}
.advanced summary::before       { content: '▸'; font-size: 9px; transition: transform .2s var(--ease); }
.advanced[open] summary::before  { transform: rotate(90deg); }
.advanced[open] summary          { border-bottom: 1px solid var(--line); color: var(--text); }
.advanced summary:hover          { color: var(--text); }

.advanced-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 8px;
  padding: 10px 12px;
  align-items: start;
}
.advanced-grid label { display: grid; gap: 4px; min-width: 0; }
.advanced-grid span  {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .05em;
  font-weight: 800;
  color: var(--subtext0);
}

/* ─── Animation Browser ─── */
.browser-card {
  position: relative;
  margin-top: 14px;
  background:
    linear-gradient(135deg,
      color-mix(in srgb, var(--surface0) 72%, transparent),
      color-mix(in srgb, var(--base) 28%, transparent)),
    color-mix(in srgb, var(--mantle) 76%, transparent);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 14px;
  box-shadow:
    0 14px 45px color-mix(in srgb, var(--crust) 46%, transparent),
    inset 0 1px 0 color-mix(in srgb, var(--text) 7%, transparent);
  backdrop-filter: blur(22px);
}

.browser-head {
  display: grid;
  grid-template-columns: 1fr 260px 200px;
  gap: 8px;
  align-items: center;
  margin-bottom: 10px;
}
.browser-head strong { font-size: 14px; font-weight: 800; }

.fx-strip {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 0 2px 10px;
  scrollbar-width: thin;
}
.fx-strip button {
  flex: 0 0 auto;
  min-height: 30px;
  border-radius: 999px;
  padding: 5px 12px;
  font-size: 12px;
  color: color-mix(in srgb, var(--accent) 86%, white 12%);
  border-color: color-mix(in srgb, var(--accent) 32%, var(--line));
  background: color-mix(in srgb, var(--accent) 10%, var(--surface0));
}
.fx-strip button:hover { background: var(--accent); color: var(--crust); }

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 8px;
  max-height: 340px;
  overflow: auto;
  padding-right: 4px;
}

.tile {
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface0) 68%, transparent);
  border-radius: 12px;
  padding: 8px;
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 8px;
  align-items: center;
  cursor: pointer;
  text-align: left;
  transition: border-color .14s var(--ease), box-shadow .14s var(--ease);
  min-width: 0;
  content-visibility: auto;
  contain-intrinsic-size: auto 54px;
}
.tile:hover {
  border-color: color-mix(in srgb, var(--accent) 52%, var(--line));
  box-shadow: 0 6px 18px color-mix(in srgb, var(--accent) 11%, transparent);
}
.tile-preview {
  width: 36px; height: 36px;
  flex-shrink: 0;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--flare-right));
  display: grid;
  place-items: center;
  color: var(--crust);
  overflow: hidden;
}
.tile-preview .ld { font-size: 22px; }
/* Transition.css: loop animation in gallery tiles */
.tile[data-lib="Transition.css"] .tile-preview .ld {
  animation-iteration-count: infinite !important;
  animation-direction: alternate !important;
}
/* 3D tiles: transparent bg to show actual animation */
.tile-preview.tile-3d {
  background: color-mix(in srgb, var(--mantle) 80%, transparent);
  border: 1px solid var(--line);
}
.tile-preview.tile-3d img {
  width: 30px;
  height: 30px;
  object-fit: cover;
  border-radius: 4px;
}
/* tile text: never overflow */
.tile-text { min-width: 0; overflow: hidden; }
.tile b     { font-size: 11px; display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--text); }
.tile small  { font-size: 9px;  display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--subtext0); }
.tile[data-lib="3D GIF Maker-style"] {
  border-color: color-mix(in srgb, var(--peach) 30%, var(--line));
  background: linear-gradient(135deg, color-mix(in srgb, var(--peach) 8%, transparent), transparent 60%),
              color-mix(in srgb, var(--surface0) 68%, transparent);
}

/* ─── Log ─── */
.log {
  white-space: pre-wrap;
  min-height: 120px;
  max-height: 220px;
  overflow-y: auto;
  margin: 12px 0 0;
  font-size: 11px;
  color: var(--subtext1);
  background: color-mix(in srgb, var(--crust) 44%, transparent);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 12px;
  font-family: monospace;
}

.exporting { pointer-events: none; opacity: .65; }

/* ─── Export Panel (under preview) ─── */
.export-panel {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.export-panel-label {
  font-size: 10px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--subtext0);
}

.export-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
}

.export-btn {
  min-height: 44px;
  font-size: 13px;
  font-weight: 800;
  border-radius: 12px;
}

.export-primary {
  background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--peach) 80%, var(--accent)));
  color: var(--crust);
  border-color: color-mix(in srgb, var(--accent) 58%, var(--line));
  box-shadow: 0 8px 24px var(--accent-glow), inset 0 1px 0 color-mix(in srgb, white 24%, transparent);
}

/* ─── 3D Tile: force infinite animation loop ─── */
.tile-preview.tile-3d .ld,
.tile-preview.tile-3d i.ld {
  animation-iteration-count: infinite !important;
  animation-fill-mode: none !important;
  animation-duration: 2s !important;
}

/* ─── Palette picker button ─── */
.palette-picker-btn {
  font-size: 10px;
  font-weight: 800;
  padding: 3px 9px;
  min-height: 24px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 14%, var(--surface0));
  border-color: color-mix(in srgb, var(--accent) 36%, var(--line));
  color: var(--accent);
  letter-spacing: .03em;
  margin-left: 4px;
}

.palette-picker-btn:hover {
  background: color-mix(in srgb, var(--accent) 28%, var(--surface0));
}

/* ─── Palette Modal ─── */
.pal-modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.62);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: grid;
  place-items: center;
}

.pal-modal.hidden { display: none; }

.pal-modal-inner {
  background: var(--mantle);
  border: 1px solid var(--line);
  border-radius: 22px;
  width: min(680px, 95vw);
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 40px 100px rgba(0,0,0,.6), inset 0 1px 0 color-mix(in srgb, var(--text) 10%, transparent);
}

.pal-modal-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  flex-shrink: 0;
}

.pal-modal-head strong {
  font-size: 15px;
  font-weight: 900;
  color: var(--text);
}

.pal-modal-head input {
  flex: 1;
  height: 32px;
}

#palClose {
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: 50%;
  font-size: 14px;
  flex-shrink: 0;
}

.pal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 8px;
  padding: 14px;
  overflow-y: auto;
  scrollbar-width: thin;
}

.pal-card {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: 12px;
  border-color: var(--line);
  background: color-mix(in srgb, var(--surface0) 60%, transparent);
  text-align: left;
  cursor: pointer;
  transition: border-color .14s var(--ease), transform .14s var(--ease);
}

.pal-card:hover {
  border-color: color-mix(in srgb, var(--accent) 50%, var(--line));
  transform: translateY(-2px);
}

.pal-swatches {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 3px;
  border-radius: 7px;
  overflow: hidden;
  height: 28px;
}

.pal-swatches i {
  display: block;
}

.pal-card span {
  font-size: 11px;
  font-weight: 700;
  color: var(--subtext1);
}

/* ─── Responsive ─── */
@media (max-width: 1180px) {
  .editor-card { grid-template-columns: 1fr; }
  .hero { align-items: flex-start; flex-direction: column; }
  .hero-actions { width: 100%; justify-content: space-between; }
  .browser-head { grid-template-columns: 1fr 200px; }
}

@media (max-width: 820px) {
  .browser-head { grid-template-columns: 1fr; }
  .g-anim, .g-output, .g-maker, .g-advanced { grid-template-columns: repeat(2, 1fr); }
  .span2 { grid-column: span 2; }
}

@media (max-width: 720px) {
  .studio { padding: 10px 10px 24px; }
  .editor-card { border-radius: 18px; padding: 10px; }
  .source-row { grid-template-columns: 1fr; }
  .hero-actions { flex-wrap: wrap; gap: 8px; }
  .theme-dock { flex-wrap: wrap; width: 100%; }
  .theme-button, .accent-button { flex: 1 1 0; min-width: 0; }
  .status { width: 100%; text-align: center; }
}