/* ==========================================================================
   Toolbox — shared styles
   1. Tokens (theme)      5. Cards & grids       9. Preview & transport
   2. Base                6. Tool layout        10. Modal / progress / toast
   3. Header & footer     7. Controls           11. Utilities
   4. Page heads          8. Drop zone
   ========================================================================== */

/* 1. Tokens ---------------------------------------------------------------- */
/* Brand palette: shared with the main tomasmartinez.xyz site. Light is the default. */
:root {
  --bg-color: #ffffff;
  --text-color: #1d1d1f;
  --accent-color: #0071e3;
  --secondary-bg: #f5f5f7;
  --card-bg: #ffffff;
  --card-border: rgba(0, 0, 0, 0.1);
  --nav-bg: rgba(255, 255, 255, 0.8);

  /* Extra shades the tools need, in the same family */
  --inset-bg: var(--secondary-bg); /* inputs, drop zones, preview stage */
  --raised-bg: #e8e8ed; /* buttons, selected segments */
  --border-strong: rgba(0, 0, 0, 0.18);
  --text-muted: #6e6e73;
  --text-faint: #86868b;
  --accent-2: #2997ff;
  --checker-a: #e8e8ed;
  --checker-b: #f5f5f7;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.12);
  color-scheme: light;
}

[data-theme="dark"] {
  --bg-color: #000000;
  --text-color: #f5f5f7;
  --accent-color: #2997ff;
  --secondary-bg: #1d1d1f;
  --card-bg: #1d1d1f;
  --card-border: rgba(255, 255, 255, 0.1);
  --nav-bg: rgba(0, 0, 0, 0.8);

  --inset-bg: #111112;
  --raised-bg: #2c2c2e;
  --border-strong: rgba(255, 255, 255, 0.2);
  --text-muted: #a1a1a6;
  --text-faint: #6e6e73;
  --accent-2: #64d2ff;
  --checker-a: #1d1d1f;
  --checker-b: #2c2c2e;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.5), 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.6);
  color-scheme: dark;
}

/* Internal tokens used by the components below, derived from the brand palette. */
:root {
  --bg: var(--bg-color);
  --bg-elev: var(--inset-bg);
  --surface: var(--card-bg);
  --surface-2: var(--raised-bg);
  --border: var(--card-border);
  --text: var(--text-color);
  --accent: var(--accent-color);
  --accent-contrast: #ffffff;
  --accent-soft: color-mix(in srgb, var(--accent-color) 14%, transparent);
  --danger: #ff3b30;
  --success: #34c759;
  --warning: #ff9f0a;

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 18px;
  --font:
    -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Segoe UI",
    Roboto, "Helvetica Neue", sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --header-h: 60px;
  --maxw: 1240px;
}

/* 2. Base ------------------------------------------------------------------ */
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.55 var(--font);
  -webkit-font-smoothing: antialiased;
}
main {
  flex: 1;
}
a {
  color: inherit;
}
img,
svg,
canvas,
video {
  display: block;
  max-width: 100%;
}
h1,
h2,
h3 {
  line-height: 1.2;
  margin: 0;
  letter-spacing: -0.01em;
}
p {
  margin: 0;
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
::selection {
  background: var(--accent-soft);
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}
@media (max-width: 600px) {
  .container {
    padding: 0 16px;
  }
}

/* 3. Header & footer ------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  background: var(--nav-bg);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 700;
  white-space: nowrap;
}
.brand-mark {
  display: grid;
  place-items: center;
}
.brand-mark svg {
  width: 30px;
  height: 23px;
  fill: var(--accent);
}
.brand-mark .logo-handle {
  fill: none;
  stroke: var(--accent);
  stroke-width: 4;
}
.brand-mark .logo-latch {
  fill: var(--bg);
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  font-size: 14px;
  color: var(--text-muted);
}
.breadcrumb ol {
  display: flex;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
  min-width: 0;
}
.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  min-width: 0;
}
.breadcrumb li + li::before {
  content: "/";
  color: var(--text-faint);
}
.breadcrumb a {
  text-decoration: none;
}
.breadcrumb a:hover {
  color: var(--text);
}
.breadcrumb [aria-current] {
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
}
.header-actions {
  margin-left: auto;
  display: flex;
  gap: 8px;
}
@media (max-width: 640px) {
  .breadcrumb li:not(:last-child) {
    display: none;
  }
  .breadcrumb li + li::before {
    display: none;
  }
}

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 64px;
  padding: 24px 0;
  color: var(--text-faint);
  font-size: 13px;
}
.site-footer .container {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

/* 4. Page heads ------------------------------------------------------------ */
.page-head {
  padding: 48px 0 28px;
}
.page-head h1 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 750;
}
.page-head p {
  margin-top: 10px;
  color: var(--text-muted);
  max-width: 640px;
  font-size: 16px;
}
.eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}
.section-title {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 36px 0 14px;
}
.search {
  position: relative;
  max-width: 420px;
  margin-top: 22px;
}
.search input[type="search"] {
  width: 100%;
  padding: 11px 14px 11px 38px;
}
.search svg {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--text-faint);
  pointer-events: none;
}

/* Home toolbox (assets/js/toolbox.js): hover or click to open the lid and fan tools out */
.toolbox {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  width: fit-content;
  margin-bottom: 20px;
  padding-top: 1vh;
  cursor: pointer;
  --spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}
.toolbox:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 8px;
  border-radius: 12px;
}
.toolbox-art {
  position: relative;
  width: 120px;
  height: 90px;
}
.toolbox-svg {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  overflow: visible;
} /* in front, so tools start hidden inside */
.toolbox-lid rect,
.toolbox-body {
  fill: var(--accent);
}
.toolbox-handle {
  fill: none;
  stroke: var(--accent);
  stroke-width: 4;
}
.toolbox-latch {
  fill: var(--bg);
  transform-box: fill-box;
  transform-origin: center top;
  transition: transform 0.2s ease;
}
.toolbox-lid {
  transform-box: fill-box;
  transform-origin: right bottom;
  transition: transform 0.35s var(--spring) var(--lid-delay, 0s); /* closing waits for the tools to drop back in */
}
.toolbox-tool {
  position: absolute;
  top: 50px;
  left: 50%;
  z-index: 0;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow-lg);
  color: var(--text);
  font-size: 14px;
  white-space: nowrap;
  text-decoration: none;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 0) scale(0.4);
  transition:
    opacity 0.2s ease var(--delay, 0s),
    transform 0.45s var(--spring) var(--delay, 0s),
    box-shadow 0.2s ease;
}
.toolbox-tool.is-out {
  z-index: 2;
} /* in front of the box once it's clear of the lid */
.toolbox-tool:hover,
.toolbox-tool:focus-visible {
  outline: none;
  border-color: var(--accent);
  color: var(--accent);
}
.toolbox-caption {
  font-size: 14px;
  color: var(--text-muted);
  transition: color 0.2s;
}
.toolbox.is-open .toolbox-lid {
  transform: translate(4px, -6px) rotate(22deg);
}
.toolbox.is-open .toolbox-latch {
  transform: scaleY(0.6);
}
.toolbox.is-open .toolbox-tool {
  opacity: 1;
  pointer-events: auto;
  transform: translate(calc(-50% + var(--x)), var(--y)) rotate(var(--r));
}
.toolbox.is-open .toolbox-caption {
  color: var(--accent);
}
@media (prefers-reduced-motion: reduce) {
  .toolbox-lid,
  .toolbox-latch,
  .toolbox-tool {
    transition: opacity 0.2s ease;
  }
}

/* 5. Cards & grids --------------------------------------------------------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
}
.card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition:
    transform 0.18s ease,
    border-color 0.18s ease,
    box-shadow 0.18s ease;
}
.card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-lg);
}
.card-thumb {
  aspect-ratio: 16 / 10;
  background: var(--surface-2);
  overflow: hidden;
}
.card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}
.card:hover .card-thumb img {
  transform: scale(1.04);
}
.card-body {
  padding: 14px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.card-title {
  font-weight: 650;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.card-desc {
  color: var(--text-muted);
  font-size: 14px;
}
.card-meta {
  font-size: 12px;
  color: var(--text-faint);
  margin-top: 6px;
}
.badge {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
}
.card.is-disabled {
  pointer-events: none;
  opacity: 0.55;
}
.empty {
  color: var(--text-muted);
  padding: 24px 0;
}

/* 6. Tool layout ----------------------------------------------------------- */
.tool-head {
  padding: 28px 0 20px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.tool-head h1 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 750;
}
.tool-head p {
  color: var(--text-muted);
  margin-top: 6px;
}
.privacy-note {
  font-size: 12px;
  color: var(--text-faint);
  display: flex;
  align-items: center;
  gap: 6px;
}
.privacy-note svg {
  width: 14px;
  height: 14px;
}

.tool-layout {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}
.tool-layout > * {
  min-width: 0;
} /* let wide content (filmstrips, long hints) scroll instead of stretching the page */
.tool-layout > .preview-panel {
  position: sticky;
  top: calc(var(--header-h) + 16px);
}
@media (max-width: 960px) {
  .tool-layout {
    grid-template-columns: 1fr;
  }
  .tool-layout > .preview-panel {
    position: static;
    order: -1;
  }
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.controls-panel {
  padding: 6px 0;
  max-height: calc(100vh - var(--header-h) - 32px);
  overflow-y: auto;
  position: sticky;
  top: calc(var(--header-h) + 16px);
  scrollbar-width: thin;
}
@media (max-width: 960px) {
  .controls-panel {
    max-height: none;
    position: static;
  }
}
.panel-pad {
  padding: 18px;
}
.preview-panel {
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* 7. Controls -------------------------------------------------------------- */
.ctrl-section {
  padding: 12px 18px 14px;
  border-bottom: 1px solid var(--border);
}
.ctrl-section:last-child {
  border-bottom: 0;
}
.ctrl-section > h3 {
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 2px 0 10px;
}
/* Collapsible section (createControls `collapsed`) */
.ctrl-fold > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.ctrl-fold > summary::-webkit-details-marker {
  display: none;
}
.ctrl-fold > summary > h3 {
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 2px 0;
}
.ctrl-fold > summary::after {
  content: '';
  width: 7px;
  height: 7px;
  border-right: 1.5px solid var(--text-muted);
  border-bottom: 1.5px solid var(--text-muted);
  transform: rotate(45deg) translateY(-2px);
  transition: transform 0.15s;
}
.ctrl-fold[open] > summary {
  margin-bottom: 10px;
}
.ctrl-fold[open] > summary::after {
  transform: rotate(225deg) translateY(-2px);
}
.ctrl-fold[hidden] {
  display: none;
}
.ctrl-subhead {
  font-size: 12px;
  font-weight: 650;
  color: var(--text);
  padding-top: 6px;
  border-top: 1px dashed var(--border);
}
.ctrl-fold > .ctrl-subhead:first-of-type {
  border-top: 0;
  padding-top: 0;
}
/* "Reset to defaults" under a persisted panel (createControls `persist`) */
.ctrl-reset {
  display: flex;
  justify-content: flex-end;
  padding: 10px 18px 12px;
  border-top: 1px solid var(--border);
}
.ctrl-reset .btn {
  color: var(--text-muted);
}
.ctrl-reset .btn:hover {
  color: var(--text);
}
.ctrl {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}
.ctrl:last-child {
  margin-bottom: 0;
}
.ctrl[hidden] {
  display: none;
}
.ctrl-label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  font-size: 13px;
  color: var(--text);
  font-weight: 500;
}
.ctrl-value {
  font: 12px var(--font-mono);
  color: var(--text-muted);
}
.ctrl-hint {
  font-size: 12px;
  color: var(--text-faint);
}
.ctrl-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

input[type="text"],
input[type="number"],
input[type="search"],
input[type="url"],
textarea,
select {
  width: 100%;
  font: inherit;
  font-size: 14px;
  color: var(--text);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  transition: border-color 0.15s;
}
textarea {
  resize: vertical;
  min-height: 64px;
  line-height: 1.4;
}
input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
select {
  appearance: none;
  padding-right: 30px;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%239099ac' stroke-width='2.5'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
}

/* Slider */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 20px;
  background: transparent;
  cursor: pointer;
  margin: 0;
  --pct: 50%;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 4px;
  background: linear-gradient(
    to right,
    var(--accent) var(--pct),
    var(--border-strong) var(--pct)
  );
}
input[type="range"]::-moz-range-track {
  height: 4px;
  border-radius: 4px;
  background: var(--border-strong);
}
input[type="range"]::-moz-range-progress {
  height: 4px;
  border-radius: 4px;
  background: var(--accent);
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  margin-top: -6px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--accent);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}
input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--accent);
}

/* Color */
.color-input {
  display: flex;
  align-items: center;
  gap: 8px;
}
input[type="color"] {
  -webkit-appearance: none;
  appearance: none;
  width: 36px;
  height: 32px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: none;
  cursor: pointer;
  flex: none;
}
input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 3px;
}
input[type="color"]::-webkit-color-swatch {
  border: 0;
  border-radius: 5px;
}
input[type="color"]::-moz-color-swatch {
  border: 0;
  border-radius: 5px;
}
.color-input input[type="text"] {
  font-family: var(--font-mono);
  font-size: 13px;
  text-transform: lowercase;
}

/* Toggle (checkbox) */
.toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
}
.toggle input {
  appearance: none;
  -webkit-appearance: none;
  width: 34px;
  height: 20px;
  border-radius: 999px;
  background: var(--border-strong);
  position: relative;
  cursor: pointer;
  transition: background 0.15s;
  flex: none;
  margin: 0;
}
.toggle input::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.15s;
}
.toggle input:checked {
  background: var(--accent);
}
.toggle input:checked::after {
  transform: translateX(14px);
}

/* Segmented control */
.segmented {
  display: flex;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 3px;
  gap: 3px;
  flex-wrap: wrap;
}
.segmented button {
  flex: 1;
  min-width: 0;
  font: inherit;
  font-size: 13px;
  padding: 5px 8px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
}
.segmented button:hover {
  color: var(--text);
}
.segmented button[aria-pressed="true"] {
  background: var(--surface-2);
  color: var(--text);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* Presets (chips) */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.chip {
  font: inherit;
  font-size: 13px;
  padding: 6px 11px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text);
  cursor: pointer;
  transition:
    border-color 0.15s,
    background 0.15s;
}
.chip:hover {
  border-color: var(--border-strong);
}
.chip[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}
.swatch-chip {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  padding: 0;
  border: 2px solid transparent;
  cursor: pointer;
}
.swatch-chip[aria-pressed="true"] {
  border-color: var(--text);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--surface-2);
  color: var(--text);
  cursor: pointer;
  text-decoration: none;
  transition:
    background 0.15s,
    border-color 0.15s,
    opacity 0.15s;
  white-space: nowrap;
}
.btn:hover {
  border-color: var(--text-faint);
}
.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.btn svg {
  width: 16px;
  height: 16px;
  flex: none;
}
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast);
}
.btn-primary:hover {
  background: color-mix(in srgb, var(--accent) 88%, #000);
  border-color: transparent;
}
.btn-ghost {
  background: transparent;
  border-color: transparent;
}
.btn-ghost:hover {
  background: var(--surface-2);
  border-color: transparent;
}
.btn-sm {
  padding: 6px 10px;
  font-size: 13px;
}
.icon-btn {
  width: 36px;
  height: 36px;
  padding: 0;
}

/* 8. Drop zone ------------------------------------------------------------- */
.dropzone {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 20px 14px;
  text-align: center;
  border: 1.5px dashed var(--border-strong);
  border-radius: var(--radius);
  background: var(--bg-elev);
  cursor: pointer;
  transition:
    border-color 0.15s,
    background 0.15s;
}
.dropzone:hover,
.dropzone.is-over {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.dropzone svg {
  width: 26px;
  height: 26px;
  color: var(--accent);
}
.dropzone strong {
  font-size: 14px;
}
.dropzone span {
  font-size: 12px;
  color: var(--text-faint);
}
.dropzone input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}
.dropzone.has-file {
  flex-direction: row;
  justify-content: flex-start;
  text-align: left;
  padding: 10px 12px;
  border-style: solid;
}
.dropzone.has-file svg {
  width: 20px;
  height: 20px;
}
.file-info {
  min-width: 0;
  flex: 1;
}
.file-info strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 13px;
}
.dropzone .file-clear {
  position: relative;
  z-index: 2;
}

/* 9. Preview & transport --------------------------------------------------- */
.preview-stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 260px;
  padding: 12px;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-elev);
}
.preview-stage canvas {
  max-width: 100%;
  max-height: min(68vh, 760px);
  width: auto;
  height: auto;
  border-radius: 6px;
  box-shadow: var(--shadow);
}
.preview-stage canvas.checker,
.checker {
  background-color: var(--checker-a);
  background-image:
    linear-gradient(45deg, var(--checker-b) 25%, transparent 25%),
    linear-gradient(-45deg, var(--checker-b) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, var(--checker-b) 75%),
    linear-gradient(-45deg, transparent 75%, var(--checker-b) 75%);
  background-size: 20px 20px;
  background-position:
    0 0,
    0 10px,
    10px -10px,
    -10px 0;
}
.preview-overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 20px;
  color: var(--text-muted);
  font-size: 14px;
  background: color-mix(in srgb, var(--bg-elev) 75%, transparent);
  backdrop-filter: blur(2px);
}
.preview-overlay[hidden] {
  display: none;
}
.preview-overlay.is-note {
  background: transparent;
  backdrop-filter: none;
  pointer-events: none;
  align-items: end;
}
.preview-overlay.is-note > div {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 12px;
  font-size: 13px;
  box-shadow: var(--shadow);
}
.preview-overlay .spinner {
  margin: 0 auto 10px;
}

/* Subject masks (lib/mask-panel.js): click points and the brush cursor sit on a canvas stacked on the
   preview (placed by the script, never exported); the strip shows which frames have a mask. */
.preview-stage canvas.mask-marks {
  position: absolute;
  max-width: none;
  max-height: none;
  border-radius: 6px;
  box-shadow: none;
  background: transparent;
  pointer-events: none;
}
#preview.mask-picking {
  cursor: crosshair;
  touch-action: none;
}
.mask-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.mask-actions .btn svg {
  width: 14px;
  height: 14px;
}
.mask-strip {
  display: block;
  width: 100%;
  height: 22px;
  cursor: pointer;
  border-radius: 4px;
}

.transport {
  display: flex;
  align-items: center;
  gap: 10px;
}
.transport input[type="range"] {
  flex: 1;
}
.transport .time {
  font: 12px var(--font-mono);
  color: var(--text-muted);
  min-width: 92px;
  text-align: right;
}

.export-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.export-bar .spacer {
  flex: 1;
}
.export-bar .hint {
  font-size: 12px;
  color: var(--text-faint);
}
/* "Open in…" menu (lib/handoff.js createOpenIn) */
.open-in {
  position: relative;
}
.open-in[hidden] {
  display: none;
}
.open-in > summary {
  list-style: none;
}
.open-in > summary::-webkit-details-marker {
  display: none;
}
.open-in-list {
  position: absolute;
  z-index: 20;
  bottom: calc(100% + 6px);
  left: 0;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  min-width: 200px;
  max-width: min(280px, calc(100vw - 32px));
  max-height: 320px;
  overflow-y: auto;
  padding: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 12px 32px rgb(0 0 0 / 0.18);
}
.open-in-list .btn {
  justify-content: flex-start;
  text-align: left;
}

/* 10. Modal / progress / toast --------------------------------------------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 16px;
  background: rgba(5, 7, 12, 0.6);
  backdrop-filter: blur(4px);
}
.modal {
  width: min(420px, 100%);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 22px;
}
.modal h2 {
  font-size: 18px;
  margin-bottom: 6px;
}
.modal p {
  color: var(--text-muted);
  font-size: 14px;
}
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 18px;
}
.gif-dialog-controls {
  display: grid;
  gap: 14px;
  margin: 14px 0 12px;
}
.modal p.gif-dialog-info {
  font: 12px var(--font-mono);
}
.modal p.gif-dialog-warn {
  margin-top: 10px;
  font-size: 13px;
}
.progress {
  height: 8px;
  border-radius: 99px;
  background: var(--surface-2);
  overflow: hidden;
  margin-top: 16px;
}
.progress > div {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.15s linear;
}
.progress-label {
  display: flex;
  justify-content: space-between;
  font: 12px var(--font-mono);
  color: var(--text-muted);
  margin-top: 8px;
}

.spinner {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2.5px solid var(--border-strong);
  border-top-color: var(--accent);
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.toasts {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: min(380px, calc(100vw - 32px));
}
.toast {
  padding: 11px 14px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  box-shadow: var(--shadow-lg);
  font-size: 14px;
  animation: toast-in 0.2s ease;
}
.toast.error {
  border-left-color: var(--danger);
}
.toast.success {
  border-left-color: var(--success);
}
.toast.warning {
  border-left-color: var(--warning);
}
@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
}

.notice {
  font-size: 13px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--warning) 12%, transparent);
  color: var(--text);
  border: 1px solid color-mix(in srgb, var(--warning) 35%, transparent);
}

/* 11. Utilities ------------------------------------------------------------ */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}
.muted {
  color: var(--text-muted);
}
[hidden] {
  display: none !important;
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation-duration: 0.01ms !important;
  }
}

/* 12. Input → output tools (Convert & Encode) -------------------------------- */
.io-options {
  padding: 14px 18px;
  margin-bottom: 20px;
}
.io-options .ctrl-section {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 22px;
  align-items: flex-end;
  padding: 0;
  border: 0;
}
.io-options .ctrl-section + .ctrl-section {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.io-options .ctrl-section > h3 {
  width: 100%;
  margin: 0;
}
.io-options .ctrl {
  min-width: 160px;
  margin: 0;
}
.io-options .ctrl:has(.toggle) {
  min-width: 0;
}
.io-options .ctrl-reset {
  margin-top: 12px;
  padding: 10px 0 0;
}
.io-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  align-items: stretch;
}
@media (max-width: 860px) {
  .io-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}
.io-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px;
  min-width: 0;
}
.io-head {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  min-height: 32px;
}
.io-head h2 {
  font-size: 14px;
  font-weight: 600;
  margin-right: auto;
}
.io-panel textarea,
.io-panel .io-out {
  flex: 1;
  min-height: 280px;
  font: 13px/1.5 var(--font-mono);
}
.io-out {
  margin: 0;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-elev);
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
}
.io-error {
  color: var(--danger);
}
.io-note {
  font-size: 12px;
  color: var(--text-faint);
}
.mono {
  font-family: var(--font-mono);
}
.kv {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr) auto;
  gap: 6px 12px;
  align-items: center;
  font-size: 13px;
}
.kv > dt {
  color: var(--text-muted);
}
.kv > dd {
  margin: 0;
  font-family: var(--font-mono);
  overflow-wrap: anywhere;
}
.hub-section + .hub-section {
  margin-top: 8px;
}
.hub-related {
  margin-top: 28px;
}

.dropzone.is-compact {
  flex-direction: row;
  justify-content: flex-start;
  text-align: left;
  gap: 10px;
  padding: 10px 12px;
}
.dropzone.is-compact svg {
  width: 20px;
  height: 20px;
  flex: none;
}
.dropzone.is-compact span:not([style]) {
  display: none;
}
.io-file {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-elev);
  font-size: 13px;
  min-width: 0;
}
.io-file strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.io-file span {
  color: var(--text-faint);
  white-space: nowrap;
}
.io-file .btn {
  margin-left: auto;
}
.io-preview-img {
  max-width: 100%;
  max-height: 260px;
  align-self: flex-start;
  border-radius: 6px;
  border: 1px solid var(--border);
}
.io-status {
  font-size: 12.5px;
  color: var(--text-muted);
  display: flex;
  gap: 6px;
  align-items: center;
  min-height: 18px;
}
.io-status.is-ok {
  color: var(--success);
}
.io-status.is-error {
  color: var(--danger);
}
.io-status svg {
  width: 14px;
  height: 14px;
  flex: none;
}
.io-banner {
  font-size: 12.5px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--warning) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--warning) 35%, transparent);
  color: var(--text);
}
.io-rows {
  display: grid;
  gap: 8px;
  align-content: start;
}
.io-row {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-elev);
}
.io-row > span:first-child {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 600;
}
.io-row > code {
  font: 13px/1.45 var(--font-mono);
  overflow-wrap: anywhere;
  color: var(--text);
  background: none;
}
.io-row.is-match {
  border-color: var(--success);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--success) 25%, transparent);
}
@media (max-width: 560px) {
  .io-row {
    grid-template-columns: minmax(0, 1fr) auto;
  }
  .io-row > span:first-child {
    grid-column: 1 / -1;
  }
}
.io-options .segmented button {
  flex: none;
}

/* 13. Image tools (shared by /image/*) --------------------------------------- */
.segmented button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.img-paste-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 8px;
  flex-wrap: wrap;
}
.img-export .segmented {
  flex-wrap: nowrap;
}
.img-export .segmented button {
  flex: none;
  padding: 5px 10px;
}
.img-export-quality {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}
.img-export-quality input {
  width: 110px;
}
.img-export-quality .ctrl-value {
  min-width: 24px;
}

/* Editors (Whiteboard, Pixel Art, Social Image): toolbar · canvas · properties */
.editor-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 16px;
  align-items: start;
}
.editor-layout > * {
  min-width: 0;
}
@media (max-width: 960px) {
  .editor-layout {
    grid-template-columns: minmax(0, 1fr);
  }
}
.editor-main {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 10px;
}
.editor-side {
  padding: 6px 0;
}
.toolbar {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  align-items: center;
}
.toolbar .sep {
  width: 1px;
  align-self: stretch;
  background: var(--border);
  margin: 2px 4px;
}
.tool-btn {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  padding: 0;
  position: relative;
}
.tool-btn:hover {
  background: var(--surface-2);
}
.tool-btn[aria-pressed="true"] {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 40%, transparent);
}
.tool-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.tool-btn svg {
  width: 18px;
  height: 18px;
}
.tool-btn kbd {
  position: absolute;
  right: 2px;
  bottom: 0;
  font: 9px var(--font-mono);
  color: var(--text-faint);
}
.editor-viewport {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-elev);
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}
.editor-viewport canvas {
  display: block;
  max-width: none;
}
.btn-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.kbd-help {
  font-size: 12px;
  color: var(--text-faint);
  line-height: 1.7;
}
.kbd-help kbd {
  font: 11px var(--font-mono);
  padding: 1px 5px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-elev);
  color: var(--text-muted);
}

/* 14. Dev tools (shared by /dev/*) ------------------------------------------- */
/* Syntax colors for lib/editor.js (`classHighlighter` → .tok-*). */
:root {
  --tok-keyword: #ad3da4;
  --tok-string: #c41a16;
  --tok-number: #1c00cf;
  --tok-comment: #707f8c;
  --tok-tag: #0b6bcb;
  --tok-attr: #836c28;
  --tok-prop: #3e7d88;
  --tok-punct: #6e6e73;
  --tok-invalid: #ff3b30;
}
[data-theme="dark"] {
  --tok-keyword: #ff7ab2;
  --tok-string: #ff8170;
  --tok-number: #d9c97c;
  --tok-comment: #7f8c98;
  --tok-tag: #6bdfff;
  --tok-attr: #d0a8ff;
  --tok-prop: #67b7a4;
  --tok-punct: #a1a1a6;
  --tok-invalid: #ff6961;
}
.code-editor {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: var(--editor-min, 280px);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-elev);
  overflow: hidden;
  transition: border-color 0.15s;
}
.code-editor:focus-within,
.code-editor.is-over {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.code-editor > .code-fallback {
  flex: 1;
  min-height: var(--editor-min, 280px);
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  resize: none;
  font: 13px/1.5 var(--font-mono);
}
.code-editor > .code-fallback:focus {
  box-shadow: none;
}
.code-editor .cm-editor {
  flex: 1;
  min-height: var(--editor-min, 280px);
  max-height: var(--editor-max, 70vh);
  font-size: 13px;
  background: transparent;
  color: var(--text);
}
.code-editor .cm-editor.cm-focused {
  outline: none;
}
.code-editor .cm-scroller {
  font-family: var(--font-mono);
  line-height: 1.5;
  overflow: auto;
}
.code-editor .cm-gutters {
  background: transparent;
  border-right: 1px solid var(--border);
  color: var(--text-faint);
}
.code-editor .cm-activeLine {
  background: color-mix(in srgb, var(--accent) 6%, transparent);
}
.code-editor .cm-activeLineGutter {
  background: transparent;
  color: var(--text-muted);
}
.code-editor .cm-content {
  caret-color: var(--accent);
}
.code-editor .cm-cursor {
  border-left-color: var(--accent);
}
.code-editor .cm-selectionBackground {
  background: color-mix(in srgb, var(--accent) 28%, transparent) !important;
}
.code-editor .cm-placeholder {
  color: var(--text-faint);
}
.code-editor .cm-matchingBracket {
  background: var(--accent-soft);
  color: inherit;
}
.tok-keyword,
.tok-bool,
.tok-atom {
  color: var(--tok-keyword);
}
.tok-string,
.tok-string2,
.tok-literal,
.tok-url {
  color: var(--tok-string);
}
.tok-number {
  color: var(--tok-number);
}
.tok-comment,
.tok-meta {
  color: var(--tok-comment);
  font-style: italic;
}
.tok-typeName,
.tok-className,
.tok-namespace,
.tok-macroName {
  color: var(--tok-tag);
}
.tok-propertyName {
  color: var(--tok-prop);
}
.tok-variableName,
.tok-labelName {
  color: var(--tok-attr);
}
.tok-punctuation,
.tok-operator {
  color: var(--tok-punct);
}
.tok-invalid {
  color: var(--tok-invalid);
}
.tok-heading,
.tok-strong {
  font-weight: 700;
}

/* Tabs over a tool (CSS Generators, Generators): a wide .segmented that scrolls on phones. */
.dev-tabs {
  margin-bottom: 16px;
  overflow-x: auto;
  scrollbar-width: none;
}
.dev-tabs .segmented {
  flex-wrap: nowrap;
  width: max-content;
  min-width: 100%;
}
.dev-tabs .segmented button {
  flex: 1 0 auto;
  padding: 7px 14px;
}
.io-panel .io-sub {
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 4px;
}
.io-panel .code-out {
  min-height: 0;
  flex: none;
}

/* 15. Audio tools (shared by /audio/*: lib/audio-waveform.js, audio-player.js, audio-export.js) ---------- */
.audio-main {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
}
@media (max-width: 960px) {
  .audio-main {
    order: -1;
  }
}
.audio-panel {
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}
.audio-panel-head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.audio-panel-head h2 {
  font-size: 15px;
  font-weight: 650;
  margin-right: auto;
}
.audio-empty {
  color: var(--text-muted);
  font-size: 14px;
  padding: 28px 12px;
  text-align: center;
  border: 1.5px dashed var(--border);
  border-radius: var(--radius);
}

.waveform {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}
.waveform-bar {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-wrap: wrap;
}
.waveform-bar .icon-btn {
  width: 30px;
  height: 30px;
}
.waveform-bar .icon-btn svg {
  width: 15px;
  height: 15px;
}
.waveform-info {
  margin-left: auto;
  font: 12px var(--font-mono);
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}
.waveform-view {
  position: relative;
  border-radius: var(--radius);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  overflow: hidden;
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
}
.waveform-canvas {
  display: block;
  max-width: none;
  cursor: text;
}
.waveform-canvas:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}
.waveform-scroll {
  position: relative;
  height: 10px;
  border-radius: 99px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  cursor: pointer;
  touch-action: none;
}
.waveform-thumb {
  position: absolute;
  top: 1px;
  bottom: 1px;
  border-radius: 99px;
  background: var(--border-strong);
  min-width: 12px;
  cursor: grab;
}
.waveform-thumb:hover {
  background: var(--text-faint);
}
.waveform-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  gap: 8px;
}

.audio-player {
  flex-wrap: wrap;
}
.audio-player .time {
  min-width: 0;
  text-align: left;
}
.audio-player .spacer {
  flex: 1;
}
.audio-loop {
  font-size: 13px;
}

.audio-export {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.audio-export-controls .ctrl-section {
  padding: 0;
  border: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  align-items: flex-end;
}
.audio-export-controls .ctrl {
  margin: 0;
  min-width: 150px;
}
.audio-export-controls .segmented button {
  flex: none;
  padding: 5px 10px;
}
.audio-export-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.audio-export-row .spacer {
  flex: 1;
}
.audio-export-estimate {
  font: 12px var(--font-mono);
  color: var(--text-muted);
}

.audio-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 8px;
}
.audio-stat {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-elev);
  min-width: 0;
}
.audio-stat span {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.audio-stat strong {
  font: 600 14px var(--font-mono);
  overflow-wrap: anywhere;
}