@layer page {
/* ============================================================
   TOOL SHELL / CHROME
   Full-viewport layout for interactive tools.
   ============================================================ */

.tool-shell {
  --tool-code-w: 440px;
  display: grid;
  grid-template-columns: minmax(18rem, 20rem) minmax(0, 1fr);
  grid-template-rows: auto auto minmax(0, 1fr) minmax(0, 1fr);
  height: 100dvh;
  width: 100vw;
  overflow: hidden;
  background: var(--surface-0);
}

.tool-tabs {
  grid-column: 1 / -1;
  grid-row: 2;
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-4);
  background: color-mix(in oklch, var(--surface-0) 92%, transparent);
  border-bottom: 1px solid var(--border-subtle);
  overflow-x: auto;
  scrollbar-width: none;
  &::-webkit-scrollbar { width: 0; height: 0; background: transparent; }
}

.tool-tab {
  font-size: var(--text-sm);
  color: var(--text-2);
  text-decoration: none;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  white-space: nowrap;
  transition: background var(--duration-fast), color var(--duration-fast);

  &:hover { background: var(--surface-2); color: var(--text-0); }
  &.is-active {
    background: var(--accent);
    color: var(--surface-0);
    font-weight: 500;
  }
}

.tool-sidebar {
  --stack-gap: var(--space-6);
  grid-column: 1;
  grid-row: 3 / 5;
  min-height: 0;
  overflow-y: auto;
  border-right: 1px solid var(--border-subtle);
  padding: var(--space-6);
  background: var(--surface-0);
}

.tool-sidebar-head {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding-bottom: var(--space-3);
}

.tool-sidebar-title {
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--text-0);
}

.tool-sidebar-desc {
  font-size: var(--text-sm);
  color: var(--text-2);
  line-height: 1.55;
  text-wrap: pretty;
}

.tool-sidebar-body {
  --stack-gap: var(--space-5);
}

.tool-canvas {
  grid-column: 2;
  grid-row: 3;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
  position: relative;
  background: var(--surface-1);
}

.canvas-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: auto;
}

.tool-footer {
  grid-column: 2;
  grid-row: 4;
  position: relative;
  min-height: 0;
  border-top: 1px solid var(--border-subtle);
  background: var(--surface-1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.tool-footer-handle {
  display: none;
}

.tool-footer-side-handle {
  display: none;
}

/* --- Desktop Layout: Three Columns --- */
@media (width >= 1400px) {
  .tool-shell {
    grid-template-columns: minmax(18rem, 20rem) minmax(0, 1fr) var(--tool-code-w);
    grid-template-rows: auto auto 1fr;
  }
  
  .tool-sidebar {
    grid-row: 3;
  }
  
  .tool-canvas {
    grid-column: 2;
    grid-row: 3;
    border-right: 1px solid var(--border-subtle);
  }
  
  .tool-footer {
    grid-column: 3;
    grid-row: 3;
    border-top: none;
  }
  
  .tool-footer-handle { display: none; }
  
  .tool-footer-side-handle {
    display: block;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 6px;
    background: transparent;
    cursor: ew-resize;
    z-index: 10;
    border: none;
    
    &::before {
      content: "";
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 2px;
      height: 32px;
      border-radius: 1px;
      background: var(--text-3);
    }
  }
}

/* --- Tablet/Mobile: Vertical Flow --- */
@media (width < 1000px) {
  .tool-shell {
    grid-template-columns: 100%;
    grid-template-rows: auto auto auto auto auto;
    height: auto;
    overflow-y: auto;
    overflow-x: hidden;
  }
  
  .tool-sidebar, .tool-canvas, .tool-footer {
    grid-column: 1;
    grid-row: auto;
    width: 100%;
  }

  .tool-sidebar {
    border-right: none;
    border-bottom: 1px solid var(--border-subtle);
    overflow: visible;
  }

  .tool-canvas {
    min-height: clamp(22rem, 56vh, 34rem);
    overflow: hidden;
  }

  .tool-footer {
    border-top: 1px solid var(--border-subtle);
    min-height: clamp(20rem, 46vh, 30rem);
  }

  .tool-footer-handle, .tool-footer-side-handle { display: none; }
}
}
@layer page {
/* ============================================================
   TOOL CONTROLS
   Sidebar form controls shared across tools: labels, sliders,
   color inputs, tab groups, generate buttons, color wheel,
   swatch container/swatch cells, and the vision-toggle button.
   ============================================================ */

/* `.control-section` is composed with `.stack` in the template;
   the default `--stack-gap` of `var(--space-3)` already matches
   the previous gap, so no knob override is needed here. */

.control-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-2);
}
.control-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
  padding-inline-end: var(--space-1);

  label {
    font-size: var(--text-sm);
    color: var(--text-1);
    min-width: 70px;
    font-weight: 300;
  }
  input[type="range"] {
    flex: 1;
    min-width: 0;
    -webkit-appearance: none;
    appearance: none;
    height: 4px;
    background: var(--surface-3);
    border-radius: 2px;
    outline: none;
  }
  input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--text-0);
    cursor: pointer;
    box-shadow: 0 0 0 3px var(--surface-0);
  }
  .value {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--text-2);
    min-width: 40px;
    text-align: right;
  }
}

.tool-note {
  margin: 0;
  font-size: 0.65rem;
  color: var(--text-2);
  line-height: 1.5;
}

.tool-note-caption {
  margin-top: var(--space-2);
}

/* Color input */
.color-input-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
  padding-inline-end: var(--space-1);
  padding-block-end: var(--space-1);
}
.color-preview {
  width: var(--space-8);
  height: var(--space-8);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}
input.color-preview {
  appearance: none;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  overflow: hidden;

  &::-webkit-color-swatch-wrapper { padding: 0; }
  &::-webkit-color-swatch,
  &::-moz-color-swatch {
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
  }
  &:focus-visible {
    outline: var(--space-1) solid var(--brand);
    outline-offset: var(--space-1);
  }
}
.color-input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--surface-3);
  padding: var(--space-2) 0;
  color: var(--text-0);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  outline: none;

  &:focus { border-color: var(--brand); }
}

/* Tab group */
.tab-group {
  display: flex;
  gap: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--surface-1);
}
.tab-btn {
  flex: 1;
  background: transparent;
  border: none;
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 300;
  color: var(--text-2);
  cursor: pointer;
  transition: all var(--duration-fast);

  &:hover { color: var(--text-0); }
  &.active {
    background: color-mix(in oklch, var(--brand) 12%, transparent);
    color: oklch(0.75 0.22 var(--hue-brand));
    font-weight: 400;
  }
}

.tool-choice-list {
  display: grid;
  gap: var(--space-2);
}

.tool-choice {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  background: var(--surface-1);
  color: inherit;
  text-align: left;
  cursor: pointer;
  transition: background var(--duration-fast), border-color var(--duration-fast), color var(--duration-fast);

  &:hover {
    background: var(--surface-2);
  }

  &.active {
    background: var(--surface-2);
    border-color: color-mix(in oklch, var(--accent) 50%, transparent);
  }
}

.tool-choice__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
}

.tool-choice__label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-0);
}

.tool-choice__meta,
.tool-choice__detail {
  font-size: 0.7rem;
  color: var(--text-2);
  line-height: 1.5;
}

/* Generate button */
.btn-generate {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--brand);
  border: none;
  border-radius: var(--radius-md);
  color: oklch(0.97 0 0);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--duration-fast);

  &:hover {
    filter: brightness(1.15);
    box-shadow: 0 0 30px color-mix(in oklch, var(--brand) 40%, transparent);
  }
}

/* Color wheel */
.wheel-container {
  width: 180px;
  height: 180px;
  position: relative;
  margin: 0 auto;
}
.color-wheel {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: conic-gradient(
    oklch(0.70 0.25 0), oklch(0.70 0.25 60), oklch(0.70 0.25 120),
    oklch(0.70 0.25 180), oklch(0.70 0.25 240), oklch(0.70 0.25 300),
    oklch(0.70 0.25 360));
  mask-image: radial-gradient(transparent 42%, black 44%, black 100%);
  -webkit-mask-image: radial-gradient(transparent 42%, black 44%, black 100%);
}
.wheel-dot {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid white;
  box-shadow: 0 0 8px oklch(0 0 0 / 0.5);
  transform: translate(-50%, -50%);
  cursor: pointer;
}
.wheel-line {
  position: absolute;
  top: 50%;
  left: 50%;
  height: 1px;
  background: color-mix(in oklch, var(--text-0) 15%, transparent);
  transform-origin: 0 50%;
  pointer-events: none;
}

/* Swatch container */
.swatch-container {
  flex: 1;
  display: flex;
  align-items: stretch;
  padding: var(--space-8);
  gap: 3px;
  position: relative;
  z-index: 1;
}
.swatch {
  flex: 1;
  border-radius: var(--radius-sm);
  position: relative;
  cursor: pointer;
  transition: flex var(--duration-normal) var(--ease-out-expo), border-radius var(--duration-fast);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-3);
  overflow: hidden;

  &:hover { flex: 2; border-radius: var(--radius-lg); }
  &:hover .swatch-label {
    opacity: 0.8;
    transform: translateY(0);
  }
}
.swatch-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: white;
  mix-blend-mode: difference;
  opacity: 0;
  transform: translateY(4px);
  transition: all var(--duration-fast);
}
}
@layer page {
/* ============================================================
   CODE EXPORT PANEL
   Groups multiple language outputs (PHP, CSS) into a tabbed 
   interface that stacks vertically on large viewports.
   ============================================================ */

.code-export {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--surface-1);
}

.code-export-header {
  background: var(--surface-0);
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.code-export-tabs {
  display: flex;
}

.code-export-tab {
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-3);
  background: transparent;
  border: none;
  border-right: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all var(--duration-fast);

  &:hover { color: var(--text-1); }
  &.is-active {
    color: var(--accent-text);
    background: var(--surface-1);
  }
}

.code-export-panels {
  flex: 1;
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
}

.code-export-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  
  &[hidden] { display: none; }
}

.code-export-panel.is-active {
  display: flex;
}

.code-export-copy {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  border: 1px solid var(--border-subtle);
  color: var(--text-3);
  cursor: pointer;
  z-index: 5;
  transition: all var(--duration-fast);

  &::before {
    content: "Copy";
    position: absolute;
    right: 100%;
    top: 50%;
    transform: translateY(-50%);
    margin-right: var(--space-2);
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    opacity: 0;
    transition: opacity var(--duration-fast);
  }

  &:hover {
    color: var(--text-0);
    border-color: var(--text-3);
    &::before { opacity: 1; }
  }
}

.code-export-panel pre {
  flex: 1;
  margin: 0;
  padding: var(--space-4);
  overflow: auto;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  line-height: 1.6;
  color: var(--text-1);
}

/* --- Desktop Layout: Vertical Stack --- */
@media (width >= 1400px) {
  .code-export-header { display: none; }
  
  .code-export-panels {
    display: grid;
    grid-template-rows: minmax(0, 1fr);
    overflow: hidden;
  }

  .code-export:not(.is-single) .code-export-panels {
    grid-template-rows: repeat(2, minmax(0, 1fr));
  }
  
  .code-export-panel {
    min-height: 0;
    border-bottom: 1px solid var(--border-subtle);
    display: flex !important; /* Force visible */
    
    &[hidden] { display: flex !important; }
    &:last-child { border-bottom: none; }
    
    &::before {
      content: attr(data-code-export-name);
      display: block;
      padding: var(--space-2) var(--space-4);
      background: var(--surface-0);
      border-bottom: 1px solid var(--border-subtle);
      font-family: var(--font-mono);
      font-size: 0.65rem;
      font-weight: 700;
      text-transform: uppercase;
      color: var(--text-3);
      letter-spacing: 0.05em;
    }
  }
  
  .code-export-panel pre {
    overflow: auto;
  }
}
}
@layer page {
/* ============================================================
   TOOLS INDEX
   Vibrant card grid. Each card scopes its own --accent via a
   modifier class; the card, its glow, and its CTA all read
   from that single variable. Per-tool visuals live in
   `.tool-visual--*` blocks below.
   ============================================================ */

/* Tools hero: stacked two-line title with smaller lede.
   .tools-hero-lede is the small first line, em is the bigger
   second line. */
.tools-hero-title {
  line-height: 1;
  letter-spacing: -0.03em;

  .tools-hero-lede {
    display: block;
    font-size: 0.45em;
    font-weight: 200;
    color: var(--text-2);
    letter-spacing: -0.01em;
    margin-bottom: var(--space-4);
  }
  em {
    display: inline-block;
    font-style: normal;
    font-weight: 200;
    color: var(--text-0);
  }
}

.sec-tools-index {
  padding: var(--space-12) var(--gutter) var(--space-24);
  max-width: 80rem;
  margin-inline: auto;
}

/* Thin spectrum bar sitting under the hero. Purely decorative. */
.tools-spectrum {
  display: flex;
  gap: 2px;
  margin: var(--space-12) auto 0;
  width: min(320px, 60%);
  height: 3px;
  opacity: 0.9;

  > span {
    flex: 1;
    border-radius: 2px;
    background: oklch(0.72 0.22 var(--h));
    box-shadow: 0 0 12px oklch(0.72 0.22 var(--h) / 0.6);
  }
}

/* `.tools-grid` is composed with `.grid-auto` in the template;
   the knobs below override the primitive's defaults to preserve
   the original min-width and clamp-based gap. */
.tools-grid {
  --grid-min: 280px;
  --grid-gap: clamp(1.75rem, 2.5vw, 2.75rem);
}

/* ── Card media ────────────────────────────────────────── */

.tool-content-card {
  border: 0.5px solid color-mix(in oklch, var(--accent) 5%, transparent);
  transition: border-color var(--duration-fast) var(--ease-out-expo);

  &:is(:hover, :focus-within) {
    border-color: color-mix(in oklch, var(--accent) 20%, transparent);
  }

  > .media { padding: var(--space-5) var(--space-5) 0; }
  > .content { padding-block-start: var(--space-3); }
}

.tool-card-visual {
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  background: radial-gradient(
    ellipse 80% 70% at 50% 100%,
    oklch(from var(--accent) l c h / 0.10) 0%,
    transparent 70%);
  position: relative;
  overflow: hidden;
}


/* ============================================================
   PER-TOOL VISUAL MODIFIERS
   Each sits inside .tool-card-visual and uses CSS primitives
   only. Everything scales to the card size. The .tv-* internals
   live in their per-tool files alongside the rest of the tool.
   ============================================================ */

.tool-visual {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Shared motion. Every visual answers the card hover with one bold
   move, never a pile of small ones. */
.tool-visual :where(span, div, b, i) {
  transition:
    transform var(--duration-normal) var(--ease-out-expo),
    opacity var(--duration-normal) var(--ease-out-expo),
    background var(--duration-normal) var(--ease-out-expo);
}

@media (prefers-reduced-motion: reduce) {
  .tool-visual :where(span, div, b, i) { transition: none; }
}

/* ── Palette: five hue bars, staggered lift ── */
.tool-visual--palette {
  padding: var(--space-4);
  gap: var(--space-2);

  > span {
    flex: 1;
    align-self: stretch;
    background: var(--c);
    border-radius: var(--radius-sm);
  }
}
.tool-content-card:hover .tool-visual--palette > span:nth-child(1) { transform: translateY(-10px); }
.tool-content-card:hover .tool-visual--palette > span:nth-child(2) { transform: translateY(-3px); }
.tool-content-card:hover .tool-visual--palette > span:nth-child(3) { transform: translateY(-14px); }
.tool-content-card:hover .tool-visual--palette > span:nth-child(4) { transform: translateY(-5px); }
.tool-content-card:hover .tool-visual--palette > span:nth-child(5) { transform: translateY(-9px); }

/* ── Wheel: a large hue ring that turns ── */
.tool-visual--wheel { padding: var(--space-2); }

.tv-ring {
  aspect-ratio: 1;
  block-size: 78%;
  border-radius: var(--radius-full);
  background: conic-gradient(
    oklch(0.70 0.22 0), oklch(0.72 0.22 60), oklch(0.74 0.22 120),
    oklch(0.72 0.22 180), oklch(0.70 0.22 240), oklch(0.68 0.24 300),
    oklch(0.70 0.22 360));
  mask: radial-gradient(circle, transparent 46%, black 47%);
}
.tool-content-card:hover .tv-ring { transform: rotate(120deg); }

/* ── Gradient: one full-bleed band that slides ── */
.tool-visual--gradient { padding: var(--space-5); }

.tv-band {
  inline-size: 100%;
  block-size: 62%;
  border-radius: var(--radius-lg);
  background: linear-gradient(
    100deg,
    oklch(0.70 0.22 260), oklch(0.80 0.22 175),
    oklch(0.78 0.20 25), oklch(0.70 0.22 260));
  background-size: 220% 100%;
  background-position: 0% 0;
}
.tool-content-card:hover .tv-band { background-position: 100% 0; }

/* ── Contrast: two big blocks, one legible one not ── */
.tool-visual--contrast {
  padding: var(--space-5);
  gap: var(--space-3);
}

.tv-pair {
  display: flex;
  flex: 1;
  align-items: center;
  justify-content: center;
  block-size: 62%;
  border-radius: var(--radius-lg);
  font-family: var(--font-body);
  font-size: var(--text-3xl);
  font-weight: 300;
  background: var(--bg);
  color: var(--fg);
}
.tool-content-card:hover .tv-pair:first-child { transform: translateY(-8px) scale(1.04); }
.tool-content-card:hover .tv-pair:last-child  { transform: translateY(8px) scale(0.96); opacity: 0.55; }

/* ── Relative: a source block and the colours derived from it ── */
.tool-visual--relative {
  padding: var(--space-5);
  gap: var(--space-3);
}

.tv-source {
  inline-size: 38%;
  block-size: 62%;
  border-radius: var(--radius-lg);
  background: var(--c);
}
.tv-derived {
  display: grid;
  flex: 1;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
  block-size: 62%;

  > span {
    border-radius: var(--radius-md);
    background: var(--c);
  }
}
.tool-content-card:hover .tv-source { transform: scale(0.88); }
.tool-content-card:hover .tv-derived > span:nth-child(1) { transform: translate(-4px, -4px); }
.tool-content-card:hover .tv-derived > span:nth-child(2) { transform: translate(4px, -4px); }
.tool-content-card:hover .tv-derived > span:nth-child(3) { transform: translate(-4px, 4px); }
.tool-content-card:hover .tv-derived > span:nth-child(4) { transform: translate(4px, 4px); }

/* ── Blindness: three wide bands, the lower two shifting on hover ── */
.tool-visual--blindness {
  flex-direction: column;
  padding: var(--space-5);
  gap: var(--space-2);

  > span {
    inline-size: 100%;
    flex: 1;
    border-radius: var(--radius-md);
    background: var(--g);
  }
}
.tool-content-card:hover .tool-visual--blindness > span:nth-child(2) { transform: translateX(-6px); }
.tool-content-card:hover .tool-visual--blindness > span:nth-child(3) { transform: translateX(6px); }

/* ── Converter: one colour, three notations stacked and cycling ── */
.tool-visual--converter {
  padding: var(--space-5);
  gap: var(--space-4);
}

.tv-source-block {
  inline-size: 34%;
  block-size: 64%;
  border-radius: var(--radius-lg);
  background: var(--c);
}
.tv-notations {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: var(--space-2);
  block-size: 64%;
  overflow: hidden;

  > b {
    display: flex;
    flex: 1;
    align-items: center;
    padding-inline: var(--space-3);
    border-radius: var(--radius-md);
    background: var(--surface-2);
    color: var(--text-2);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 400;
  }
}
.tool-content-card:hover .tv-source-block { transform: scale(1.06); }
.tool-content-card:hover .tv-notations > b:nth-child(1) { background: var(--accent-soft); color: var(--accent-text); }
.tool-content-card:hover .tv-notations > b:nth-child(2) { transform: translateX(6px); }
.tool-content-card:hover .tv-notations > b:nth-child(3) { transform: translateX(12px); }

/* ── Names: one large swatch, its nearest name spelled out ── */
.tool-visual--names { padding: var(--space-5); }

.tv-namer {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  inline-size: 100%;
  block-size: 64%;

  .swatch {
    aspect-ratio: 1;
    block-size: 100%;
    border-radius: var(--radius-lg);
    background: var(--c);
  }

  .label {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    font-family: var(--font-body);
    font-size: var(--text-2xl);
    font-weight: 300;
    color: var(--text-0);
    line-height: 1.1;

    i {
      font-family: var(--font-mono);
      font-size: var(--text-xs);
      font-style: normal;
      color: var(--text-3);
    }
  }
}
.tool-content-card:hover .tv-namer .swatch { transform: scale(1.1) rotate(-4deg); }
}
@layer page {
/* ============================================================
   COLOR BLINDNESS TOOL
   Per-card visual internals for the blindness simulator
   preview: three labelled gradient strips.
   ============================================================ */

/* ── Blindness: three gradient strips side by side ── */
.tv-blindness-row {
  display: grid;
  grid-template-columns: 42px 1fr;
  align-items: center;
  gap: var(--space-2);
}
.tv-blindness-label {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-2);
}
.tv-blindness-strip {
  height: 10px;
  border-radius: 2px;
}
.tv-blindness-strip--normal {
  background: linear-gradient(90deg in oklch,
    oklch(0.70 0.22 25), oklch(0.75 0.22 85), oklch(0.74 0.22 145),
    oklch(0.72 0.22 220), oklch(0.68 0.24 300));
}
.tv-blindness-strip--deuter {
  background: linear-gradient(90deg in oklch,
    oklch(0.70 0.10 85), oklch(0.75 0.10 85), oklch(0.74 0.10 120),
    oklch(0.72 0.14 220), oklch(0.68 0.12 260));
}
.tv-blindness-strip--prot {
  background: linear-gradient(90deg in oklch,
    oklch(0.70 0.08 70), oklch(0.75 0.10 90), oklch(0.74 0.12 120),
    oklch(0.72 0.16 220), oklch(0.70 0.14 260));
}

.blindness-lab {
  display: grid;
  grid-template-rows: repeat(2, minmax(0, 1fr));
  gap: var(--space-6);
  padding: var(--space-6);
  height: 100%;
  overflow: auto;
}

.blindness-strip-panel {
  --stack-gap: var(--space-3);
}

.blindness-strip-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-2);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.blindness-strip {
  display: flex;
  gap: 2px;
  height: 100%;
  min-height: 10rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

@media (width <= 768px) {
  .blindness-lab {
    padding: var(--space-5);
  }
}
}
@layer page {
/* ============================================================
   CONTRAST TOOL
   Per-card visual internals for the contrast checker preview.
   ============================================================ */

/* ── Contrast: two ratio rows, one pass one fail ── */
.tv-contrast-stack {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.tv-contrast-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  background: oklch(from var(--accent) 0.12 0.02 h);
  border-radius: var(--radius-sm);
}
.tv-contrast-chip {
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  background: var(--text-0);
  color: oklch(0.08 0 0);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
}
.tv-contrast-chip--muted {
  background: oklch(0.55 0.02 var(--hue-brand));
  color: oklch(0.25 0.02 var(--hue-brand));
}
.tv-contrast-ratio {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-2);
}
.tv-contrast-tag {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
}
.tv-contrast-tag--pass {
  background: oklch(0.75 0.18 145 / 0.18);
  color: oklch(0.82 0.20 145);
}
.tv-contrast-tag--fail {
  background: oklch(0.65 0.22 25 / 0.18);
  color: oklch(0.78 0.24 25);
}


/* ── Live contrast tool sidebar widgets ── */
.contrast-result {
  padding: var(--space-2) 0 0;
}
.contrast-result__value {
  font-family: var(--font-body);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 100;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--text-0);
  margin-bottom: var(--space-3);
}
.contrast-result__value--sm {
  font-size: var(--text-2xl);
}
.contrast-result__suffix {
  font-size: 0.45em;
  color: var(--text-2);
}

.contrast-checks {
  list-style: none;
  padding: 0;
  margin: 0;
  --stack-gap: var(--space-2);
}
.contrast-check {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding-left: var(--space-3);
  position: relative;

  &::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--text-3);
  }
  &.is-pass {
    color: oklch(0.78 0.20 145);
    &::before { background: oklch(0.78 0.20 145); }
  }
  &.is-fail {
    color: oklch(0.78 0.20 25);
    &::before { background: oklch(0.78 0.20 25); }
  }
}

.contrast-lab {
  display: grid;
  gap: var(--space-5);
  padding: var(--space-6);
  height: 100%;
  overflow: auto;
}

.contrast-page {
  --color-bg: oklch(0.22 0.06 260);
  --color-fg: oklch(0.97 0.005 239);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  min-height: 20rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.color-half {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-5);
}

.bg-side {
  background: var(--color-bg);
  color: var(--color-fg);
}

.fg-side {
  background: var(--color-fg);
  color: var(--color-bg);
}

.half-label,
.half-value {
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.half-value {
  width: fit-content;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
  background: color-mix(in oklch, currentColor 8%, transparent);
}

.half-sample {
  margin: 0;
  font-size: clamp(1.4rem, 3vw, 2.25rem);
  line-height: 1;
  letter-spacing: -0.03em;
}

.contrast-sample-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

.contrast-sample-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  min-height: 12rem;
  padding: var(--space-4) 0 0;
  border-radius: var(--radius-lg);
  border-top: 1px solid color-mix(in oklch, var(--text-0) 10%, transparent);

  strong,
  p {
    margin: 0;
  }

  strong {
    font-size: clamp(1.2rem, 2vw, 1.6rem);
    line-height: 1.1;
  }

  p {
    font-size: var(--text-sm);
    line-height: 1.6;
  }
}

.contrast-sample-card__eyebrow,
.contrast-verdict {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: color-mix(in oklch, var(--text-0) 8%, transparent);
  color: var(--text-1);
}

.contrast-notes {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

@media (width <= 900px) {
  .contrast-page,
  .contrast-sample-grid {
    grid-template-columns: 1fr;
  }
}

@media (width <= 768px) {
  .contrast-lab {
    padding: var(--space-5);
  }
}
}
@layer page {
/* ============================================================
   CONVERTER TOOL
   Per-card visual internals for the format converter preview:
   two columns separated by an arrow.
   ============================================================ */

/* ── Converter: two columns with arrow ── */
.tv-converter-col {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.tv-converter-row {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  background: oklch(from var(--accent) 0.14 0.03 h);
  color: var(--text-2);
  border: 1px solid oklch(from var(--accent) l c h / 0.15);
}
.tv-converter-row--strong {
  background: oklch(from var(--accent) l c h / 0.25);
  color: var(--accent-text);
  border-color: oklch(from var(--accent) l c h / 0.5);
}
.tv-converter-arrow {
  color: var(--accent-text);
  font-size: 1rem;
}

.converter-lab {
  display: grid;
  gap: var(--space-6);
  padding: var(--space-6);
  height: 100%;
  overflow: auto;
}

.converter-hero-card {
  display: grid;
  grid-template-columns: minmax(16rem, 22rem) 1fr;
  gap: var(--space-5);
  align-items: stretch;
}

.converter-hero-swatch {
  min-height: 16rem;
  border-radius: var(--radius-lg);
  box-shadow: inset 0 0 0 1px color-mix(in oklch, var(--text-0) 10%, transparent);
}

.converter-hero-copy {
  align-content: center;
  --stack-gap: var(--space-3);
}

.converter-results-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 3px;
}

.converter-result-card {
  padding: var(--space-6);
  border-radius: var(--radius-md);
  background: var(--surface-0);
}

.converter-result-label {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-2);
}

.converter-result-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--text-0);
  word-break: break-all;
}

@media (width <= 1000px) {
  .converter-results-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (width <= 768px) {
  .converter-lab {
    padding: var(--space-5);
  }

  .converter-hero-card,
  .converter-results-grid {
    grid-template-columns: 1fr;
  }
}
}
@layer page {
/* ============================================================
   GRADIENT TOOL
   Per-card visual internals for the OKLCH gradient preview
   with draggable stops.
   ============================================================ */

/* ── Gradient: OKLCH strip with three draggable stops ── */
.tv-gradient-strip {
  width: 100%;
  height: 28px;
  border-radius: var(--radius-sm);
  background: linear-gradient(
    90deg in oklch,
    oklch(0.70 0.22 260) 0%,
    oklch(0.80 0.22 175) 50%,
    oklch(0.78 0.20 25)  100%);
}
.tv-gradient-stops {
  position: relative;
  width: 100%;
  height: 12px;

  > span {
    position: absolute;
    top: 0;
    width: 12px;
    height: 12px;
    transform: translateX(-50%);
    border-radius: 50%;
    background: var(--c);
    box-shadow: 0 0 0 2px var(--surface-0);
  }
}

.gradient-lab {
  display: grid;
  gap: var(--space-6);
  padding: var(--space-6);
  height: 100%;
  overflow: auto;
}

.gradient-hero-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: 0;
}

.gradient-hero-bar {
  min-height: 16rem;
  border-radius: var(--radius-lg);
}

.gradient-stop-strip {
  display: flex;
  gap: 2px;
  height: 3rem;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.gradient-preview-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

.gradient-preview-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid var(--border-subtle);
}

.gradient-preview {
  min-height: 11rem;
  border-radius: var(--radius-lg);
}

.gradient-preview--border {
  padding: 2px;
}

.gradient-preview__inner {
  width: 100%;
  height: 100%;
  border-radius: calc(var(--radius-lg) - 2px);
  background: var(--surface-0);
}

.gradient-preview--glass {
  box-shadow:
    inset 0 0 0 1px color-mix(in oklch, var(--text-0) 12%, transparent),
    0 24px 60px color-mix(in oklch, var(--brand) 14%, transparent);
}

@media (width <= 900px) {
  .gradient-preview-grid {
    grid-template-columns: 1fr;
  }
}

@media (width <= 768px) {
  .gradient-lab {
    padding: var(--space-5);
  }
}
}
@layer page {
/* ============================================================
   HARMONIES TOOL
   ============================================================ */

.tv-wheel {
  position: relative;
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: conic-gradient(
    oklch(0.72 0.24 0),
    oklch(0.72 0.24 60),
    oklch(0.72 0.24 120),
    oklch(0.72 0.24 180),
    oklch(0.72 0.24 240),
    oklch(0.72 0.24 300),
    oklch(0.72 0.24 360)
  );
  mask-image: radial-gradient(circle, transparent 38%, black 40%);
  -webkit-mask-image: radial-gradient(circle, transparent 38%, black 40%);
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

.tool-content-card:hover .tv-wheel {
  transform: rotate(30deg);
}

.tv-wheel-dot {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-0);
  box-shadow: 0 0 0 2px var(--surface-0);
  transform-origin: 0 0;
  transform: rotate(var(--a)) translate(46px, -50%);
}

.harmonies-canvas {
  display: grid;
  gap: var(--space-6);
  padding: var(--space-6);
  height: 100%;
  overflow: auto;
}

.harmonies-top-row {
  display: grid;
  grid-template-columns: minmax(15rem, 18rem) minmax(14rem, 20rem);
  align-items: start;
  gap: var(--space-6);
}

.harmonies-modes {
  grid-template-columns: 1fr;
}

.harmonies-output {
  display: grid;
  grid-template-columns: minmax(18rem, 28rem) 1fr;
  gap: var(--space-6);
}

.harmonies-current-card,
.harmonies-strip-panel {
  display: flex;
  flex-direction: column;
  --stack-gap: var(--space-4);
}

.harmonies-current-card {
  gap: var(--space-4);
}

.harmonies-current-preview {
  min-height: 9rem;
  border-radius: var(--radius-lg);
  box-shadow: inset 0 0 0 1px color-mix(in oklch, var(--text-0) 10%, transparent);
}

.harmonies-current-value {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-1);
}

.harmony-wheel-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: 0;
}

.harmony-wheel-stage {
  position: relative;
  aspect-ratio: 1;
  max-width: 16rem;
  width: 100%;
}

.harmony-wheel-ring,
.harmony-wheel-overlay,
.harmony-wheel-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.harmony-wheel-ring {
  border-radius: 50%;
  background: conic-gradient(
    oklch(0.72 0.34 0),
    oklch(0.72 0.34 60),
    oklch(0.72 0.34 120),
    oklch(0.72 0.34 180),
    oklch(0.72 0.34 240),
    oklch(0.72 0.34 300),
    oklch(0.72 0.34 360)
  );
  mask-image: radial-gradient(circle, transparent 0 12%, black 72%);
  -webkit-mask-image: radial-gradient(circle, transparent 0 12%, black 72%);
  opacity: 0.92;
}

.harmony-wheel-overlay {
  border-radius: 50%;
  border: 1px solid var(--border-subtle);
  background: radial-gradient(circle, color-mix(in oklch, var(--surface-0) 12%, transparent) 0%, transparent 65%);
}

.harmony-wheel-svg {
  overflow: visible;
}

.harmony-geo-polygon {
  fill: color-mix(in oklch, var(--text-0) 6%, transparent);
  stroke: color-mix(in oklch, var(--text-0) 30%, transparent);
  stroke-width: 1;
  stroke-dasharray: 4 4;
}

.harmony-geo-line {
  stroke: color-mix(in oklch, var(--text-0) 30%, transparent);
  stroke-width: 1;
}

.harmony-geo-point {
  stroke: var(--surface-0);
  stroke-width: 2;
}

.harmonies-legend-grid,
.palette-legend-grid {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: var(--space-2);
}

.harmony-legend-row,
.palette-legend-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-sm);
}

.harmony-legend__chip,
.palette-legend__chip {
  width: 18px;
  height: 18px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.harmony-legend__label,
.palette-legend__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-1);
}

@media (width <= 1100px) {
  .harmonies-top-row {
    grid-template-columns: 1fr;
  }
}

@media (width <= 768px) {
  .harmonies-canvas {
    padding: var(--space-5);
  }

  .harmonies-current-preview {
    max-width: none;
  }
}
}
@layer page {
/* ============================================================
   NAMES TOOL
   ============================================================ */

.names-canvas {
  display: grid;
  gap: var(--space-6);
  padding: var(--space-8);
  height: 100%;
  overflow: auto;
  max-width: 60rem;
  margin: 0 auto;
}

.names-hero-card {
  display: grid;
  grid-template-columns: minmax(14rem, 18rem) 1fr;
  gap: var(--space-5);
  padding: 0;
}

.names-hero-swatch {
  min-height: 14rem;
  border-radius: var(--radius-lg);
  box-shadow: inset 0 0 0 1px color-mix(in oklch, var(--text-0) 10%, transparent);
}

.names-hero-name {
  margin: 0;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 300;
  line-height: 0.95;
  letter-spacing: -0.04em;
  text-transform: capitalize;
}

.names-secondary-panel {
  --stack-gap: var(--space-4);
  margin-top: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid var(--border-subtle);
}

.names-secondary-list {
  display: grid;
  gap: var(--space-2);
}

.names-secondary-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--surface-0);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  color: inherit;
  text-align: left;
  cursor: pointer;
  transition: background var(--duration-fast), border-color var(--duration-fast);

  &:hover {
    background: var(--surface-2);
    border-color: var(--border-subtle);
  }
}

.names-secondary-row__chip {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  flex-shrink: 0;
  box-shadow: inset 0 0 0 1px color-mix(in oklch, var(--text-0) 12%, transparent);
}

.names-secondary-row__info {
  display: flex;
  flex-direction: column;
  gap: 2px;

  strong {
    text-transform: capitalize;
    font-size: var(--text-base);
    color: var(--text-0);
  }

  span {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-2);
  }
}

.names-results {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--space-2);
}

.names-result {
  display: grid;
  grid-template-columns: 32px 1fr max-content max-content;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  transition: background var(--duration-fast);

  &:hover {
    background: color-mix(in oklch, var(--text-0) 3%, transparent);
  }
}

.names-result__chip {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
}

.names-result__name {
  font-size: var(--text-base);
  color: var(--text-0);
  text-transform: capitalize;
}

.names-result__hex,
.names-result__delta {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-2);
}

.names-dictionary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(10rem, 1fr));
  gap: var(--space-2);
}

.names-dictionary-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  text-align: left;
  color: inherit;
  cursor: pointer;
  transition: background var(--duration-fast), transform var(--duration-fast);

  &:hover {
    background: color-mix(in oklch, var(--text-0) 3%, transparent);
    transform: translateY(-1px);
  }

  strong {
    text-transform: capitalize;
    font-size: 0.9rem;
    color: var(--text-0);
  }

  span:last-child {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--text-2);
  }
}

.names-dictionary-item__chip {
  width: 100%;
  height: 3rem;
  border-radius: var(--radius-sm);
  box-shadow: inset 0 0 0 1px color-mix(in oklch, var(--text-0) 10%, transparent);
}

.names-meta {
  font-size: var(--text-sm);
}

.names-meta-list {
  --stack-gap: var(--space-2);
}

.names-hero-copy {
  --stack-gap: var(--space-3);
}

.names-hero-meta {
  --cluster-gap: var(--space-4);
}

.names-hero-note {
  color: var(--text-2);
}

.tv-name {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: oklch(from var(--c) l c h / 0.18);
  color: oklch(from var(--c) 0.85 calc(c * 0.8) h);
  border: 1px solid oklch(from var(--c) l c h / 0.35);
}

@media (width <= 768px) {
  .names-canvas {
    padding: var(--space-5);
  }

  .names-hero-card {
    grid-template-columns: 1fr;
  }
}
}
@layer page {
/* ============================================================
   PALETTE TOOL
   ============================================================ */

.palette-canvas {
  display: grid;
  gap: var(--space-6);
  padding: var(--space-6);
  height: 100%;
  overflow: auto;
}

.palette-strip-card,
.palette-meta-card {
  padding: 0;
}

.palette-canvas-head {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);

  .eyebrow {
    margin: 0;
  }
}

.palette-stop-strip {
  display: flex;
  gap: 2px;
  min-height: 16rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.palette-stop {
  position: relative;
  display: flex;
  flex: 1;
  align-items: flex-end;
  padding: var(--space-3);
  transition: flex var(--duration-normal) var(--ease-out-expo);

  &:hover {
    flex: 1.6;
  }
}

.palette-stop__weight,
.palette-stop__value {
  font-family: var(--font-mono);
  color: white;
  mix-blend-mode: difference;
}

.palette-stop__weight {
  font-size: 0.7rem;
  font-weight: 600;
}

.palette-stop__value {
  font-size: 0.62rem;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity var(--duration-fast), transform var(--duration-fast);
}

.palette-stop:hover .palette-stop__value {
  opacity: 0.9;
  transform: translateY(0);
}

.palette-meta-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
}

.palette-summary {
  --stack-gap: var(--space-2);
}

.palette-summary-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  font-size: var(--text-sm);

  span:last-child {
    font-family: var(--font-mono);
    color: var(--text-1);
  }
}

.palette-curve {
  width: 100%;
  height: 6.5rem;
  margin-top: var(--space-4);
  border-left: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);

  path {
    fill: none;
    stroke: var(--accent);
    stroke-width: 2;
    vector-effect: non-scaling-stroke;
  }
}

.palette-legend-grid {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
  gap: var(--space-2);
}

.palette-meta-card {
  padding-top: var(--space-3);
  border-top: 1px solid var(--border-subtle);
}

.palette-legend__weight {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-2);
}

.palette-legend-section {
  --stack-gap: var(--space-3);
}

.tool-fallback-canvas {
  flex: 1;
  padding: var(--space-6);
  --stack-gap: var(--space-6);
}

.tool-fallback-strip {
  display: flex;
  gap: 2px;
  flex: 1;
  min-height: 12.5rem;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.tool-fallback-legend {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(8.75rem, 1fr));
  gap: var(--space-2);
}

.tool-visual--palette-scale {
  flex-direction: column;
  padding: var(--space-3);
  gap: var(--space-2);
}

.tv-palette-scale {
  width: 100%;
  height: 2rem;
  border-radius: var(--radius-sm);
  background:
    linear-gradient(
      90deg,
      oklch(0.96 0.03 250),
      oklch(0.82 0.08 250),
      oklch(0.68 0.16 255),
      oklch(0.54 0.20 260),
      oklch(0.18 0.07 270)
    );
}

.tv-palette-curve {
  width: 100%;
  height: 1.75rem;
  border-radius: var(--radius-sm);
  background:
    linear-gradient(180deg, transparent 48%, color-mix(in oklch, var(--text-0) 12%, transparent) 49%, transparent 50%),
    linear-gradient(90deg, color-mix(in oklch, var(--accent) 15%, transparent), transparent 70%);
}

@media (width <= 1100px) {
  .palette-meta-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (width <= 768px) {
  .palette-canvas {
    padding: var(--space-5);
  }

  .tool-fallback-canvas {
    padding: var(--space-5);
  }

  .palette-meta-grid {
    grid-template-columns: 1fr;
  }
}
}
@layer page {
/* ============================================================
   RELATIVE COLORS TOOL
   ============================================================ */

.relative-lab {
  --relative-base: oklch(0.65 0.20 250);
  --relative-lighten: 0.20;
  --relative-darken: 0.20;
  --relative-saturate: 1.5;
  --relative-spin: 180deg;
  padding: var(--space-6);
  display: grid;
  gap: var(--space-6);
  height: 100%;
  overflow: auto;
}

.relative-transforms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: var(--space-4);
}

.relative-transform-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid var(--border-subtle);
}

.relative-transform-swatch {
  min-height: 9rem;
  border-radius: var(--radius-md);
  box-shadow: inset 0 0 0 1px color-mix(in oklch, var(--text-0) 10%, transparent);
}

.relative-transform-card--source {
  padding-top: 0;
  border-top: none;
}

.relative-transform-swatch--source {
  min-height: 12rem;
  background: var(--relative-base);
  border-radius: var(--radius-lg);
}

.relative-transform-swatch--light {
  background: oklch(from var(--relative-base) calc(l + var(--relative-lighten)) c h);
}

.relative-transform-swatch--dark {
  background: oklch(from var(--relative-base) calc(l - var(--relative-darken)) c h);
}

.relative-transform-swatch--sat {
  background: oklch(from var(--relative-base) l calc(c * var(--relative-saturate)) h);
}

.relative-transform-swatch--spin {
  background: oklch(from var(--relative-base) l c calc(h + var(--relative-spin)));
}

.relative-transform-swatch--invert {
  background: oklch(from var(--relative-base) calc(1 - l) c h);
}

.relative-transform-copy {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);

  h3 {
    font-size: var(--text-base);
    color: var(--text-0);
    margin: 0;
  }

  code {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    line-height: 1.6;
    color: var(--text-2);
    white-space: pre-wrap;
  }
}

/* The /tools index card visual for this tool now lives in
   tools/index.css, with the rest of the card set, so the whole
   listing shares one motion language. The rules that used to sit
   here overrode it: this file is imported after index.css, so
   .tool-visual--relative won and forced the card back to a column. */

@media (width <= 768px) {
  .relative-lab {
    padding: var(--space-5);
  }
}
}