/* design-system.css — design system page */

/* CSS Variables */
/* --ds-* aliases point at tokens.css primitives.
   Page-specific values (sidebar-bg, code-bg, logo tiles) remain here. */
:root {
  --ds-bg: var(--color-bg);
  --ds-sidebar-bg: #111111;
  --ds-surface: var(--color-surface);
  --ds-surface-hover: var(--color-surface-hover);
  --ds-border: var(--color-border);
  --ds-border-subtle: var(--color-border-subtle);
  --ds-text: var(--color-text);
  --ds-text-muted: var(--color-text-muted);
  --ds-text-faint: var(--color-text-faint);
  --ds-accent: var(--color-accent);
  --ds-info: var(--color-info);
  --ds-success: var(--color-success);
  --ds-warning: var(--color-warning);
  --ds-error: var(--color-error);
  --ds-code-bg: #161616;
  --ds-link: var(--color-link);
  --ds-link-hover: var(--color-link-hover);
  --ds-logo-tile-dark-bg: #111111;
  --ds-logo-tile-light-bg: #ffffff;
  --ds-radius: var(--radius-lg);
  --ds-shadow-sm: var(--shadow-sm);
  --ds-shadow-md: var(--shadow-md);
  --ds-shadow-lg: var(--shadow-lg);
  --ds-shadow-xl: var(--shadow-xl);
  --ds-font: var(--font-sans);
  --ds-mono: var(--font-mono);
}

[data-theme="light"] {
  --ds-sidebar-bg: #f8f8f8;
  --ds-code-bg: #f4f4f4;
  --ds-logo-tile-dark-bg: #111111;
  --ds-logo-tile-light-bg: #ffffff;
}

/* Base — scoped to ds-page so the reset doesn't bleed into index.html */
.ds-page *,
.ds-page *::before,
.ds-page *::after {
  box-sizing: border-box;
}

body.ds-page {
  margin: 0;
  background: var(--ds-bg);
  color: var(--ds-text);
  font-family: var(--ds-font);
  font-size: 0.9375rem;
  line-height: 1.6;
  -webkit-font-smoothing: auto;
}

/* Layout */

.ds-root {
  min-height: 100vh;
  position: relative;
}

/* Sidebar */
.ds-sidebar {
  width: 210px;
  flex-shrink: 0;
  position: fixed;
  top: 0;
  left: max(0px, calc((100vw - 820px) / 2 - 210px));
  height: 100vh;
  overflow-y: auto;
  background: var(--ds-bg);
  display: flex;
  flex-direction: column;
  scrollbar-width: none;
  z-index: 10;
}

.ds-sidebar::-webkit-scrollbar {
  display: none;
}

.ds-version-badge {
  font-size: 0.625rem;
  font-weight: 600;
  background: var(--ds-surface);
  color: var(--ds-text-muted);
  border: 1px solid var(--ds-border);
  border-radius: 9999px;
  padding: 0.1em 0.5em;
  letter-spacing: 0.04em;
}

/* Nav */
.ds-nav {
  padding: 1rem 0 1.5rem;
  flex: 1;
}

/* Results container — transparent wrapper on desktop, becomes dropdown on mobile */
.ds-nav-results {
  display: contents;
}

.ds-nav-group {
  padding: 0 0 0.75rem;
}

.ds-nav-label {
  font-size: 0.75rem;
  color: var(--ds-text-muted);
  letter-spacing: 0.04em;
  padding: 0 1.25rem 0.35rem;
  margin-top: 0.25rem;
  display: block;
  white-space: nowrap;
}

.ds-nav-link {
  display: block;
  padding: var(--space-2) var(--space-3);
  margin: 0 0.5rem;
  font-size: 0.875rem;
  line-height: 1.25;
  color: var(--ds-link);
  text-decoration: none;
  border-radius: 0.5rem;
  transition:
    color 0.15s,
    background 0.15s;
}

.ds-nav-link:hover {
  color: var(--ds-link-hover);
  background: var(--ds-surface-hover);
}

.ds-nav-link.active {
  color: var(--ds-text);
  background: var(--ds-surface);
}

/* Main content */
.ds-main {
  max-width: 820px;
  margin: 0 auto;
  padding: 2.5rem 3rem 5rem;
}

/* Section */

.ds-section {
  padding-bottom: 3rem;
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--ds-border);
}

.ds-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.ds-section-header {
  margin-bottom: 1.5rem;
}

.ds-section-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--ds-text);
  margin: 0 0 0.5rem;
  letter-spacing: -0.025em;
  line-height: 1.15;
}

.ds-intro-title {
  font-size: 2.5rem;
  letter-spacing: -0.035em;
  margin: 0;
}

.ds-title-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}

.ds-section-desc {
  font-size: 0.9375rem;
  color: var(--ds-text-muted);
  line-height: 1.65;
  margin: 0;
}

.ds-subsection-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--ds-text);
  margin: 2rem 0 0.75rem;
  letter-spacing: -0.01em;
}

/* Callout (legacy — kept for reference) */
.ds-callout {
  background: var(--ds-surface);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius);
  padding: 0.875rem 1rem;
  font-size: 0.875rem;
  color: var(--ds-text-muted);
  line-height: 1.6;
  margin: 1.25rem 0 0;
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
}

.ds-callout svg {
  flex-shrink: 0;
  margin-top: 0.1rem;
  opacity: 0.5;
}

/* Banner */
.ui-banner {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  padding: 0.875rem 1rem;
  border-radius: var(--ds-radius);
  font-size: 0.875rem;
  line-height: 1.6;
  border: 1px solid;
  width: 100%;
}

.ui-banner svg {
  flex-shrink: 0;
  margin-top: 0.25rem;
}

.ui-banner-body {
  flex: 1;
  min-width: 0;
}

.ui-banner-close {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  color: inherit;
  opacity: 0.5;
  flex-shrink: 0;
  line-height: 1;
  margin-top: 0.1rem;
  transition: opacity 0.15s;
}

.ui-banner-close:hover {
  opacity: 1;
}

/* Variants */
.ui-banner--info {
  background: color-mix(in srgb, var(--ds-info) 10%, transparent);
  border-color: color-mix(in srgb, var(--ds-info) 25%, transparent);
  color: var(--ds-info);
}

.ui-banner--success {
  background: color-mix(in srgb, var(--ds-success) 8%, transparent);
  border-color: color-mix(in srgb, var(--ds-success) 22%, transparent);
  color: var(--ds-success);
}

.ui-banner--warning {
  background: color-mix(in srgb, var(--ds-warning) 8%, transparent);
  border-color: color-mix(in srgb, var(--ds-warning) 22%, transparent);
  color: var(--ds-warning);
}

.ui-banner--error {
  background: color-mix(in srgb, var(--ds-error) 8%, transparent);
  border-color: color-mix(in srgb, var(--ds-error) 22%, transparent);
  color: var(--ds-error);
}

[data-theme="light"] .ui-banner--info {
  background: color-mix(in srgb, #3b82f6 16%, transparent);
  border-color: color-mix(in srgb, #3b82f6 35%, transparent);
  color: #1d4ed8;
}

[data-theme="light"] .ui-banner--success {
  background: color-mix(in srgb, #16a34a 12%, transparent);
  border-color: color-mix(in srgb, #16a34a 30%, transparent);
  color: #15803d;
}

[data-theme="light"] .ui-banner--warning {
  background: color-mix(in srgb, #d97706 12%, transparent);
  border-color: color-mix(in srgb, #d97706 30%, transparent);
  color: #b45309;
}

[data-theme="light"] .ui-banner--error {
  background: color-mix(in srgb, #dc2626 12%, transparent);
  border-color: color-mix(in srgb, #dc2626 30%, transparent);
  color: #b91c1c;
}

/* Features grid */
.ds-features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.875rem;
  margin-top: 1.5rem;
}

.ds-feature {
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius);
  padding: 0.875rem 1rem;
}

.ds-feature strong {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--ds-text);
  margin-bottom: 0.25rem;
}

.ds-feature p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--ds-text-muted);
  line-height: 1.55;
}

/* Install block (always dark) */
.ds-install-block {
  /* Always dark regardless of page theme */
  --ds-code-bg: #1c1c1c;
  --ds-border: #2e2e2e;
  --ds-text: #cccccc;
  --ds-text-muted: #777777;
  --ds-surface: rgba(255, 255, 255, 0.06);
  background: var(--ds-code-bg);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius);
  padding: 0.75rem 1rem;
  font-family: var(--ds-mono);
  font-size: 0.8125rem;
  color: var(--ds-text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.625rem;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
}

.ds-install-block::-webkit-scrollbar {
  display: none;
}

.ds-install-block > span {
  white-space: nowrap;
  flex-shrink: 0;
}

.ds-install-prompt {
  color: var(--ds-text-muted);
  user-select: none;
  margin-right: 0.375rem;
}

.ds-install-copy {
  background: none;
  border: none;
  border-radius: 0.375rem;
  color: var(--ds-text-muted);
  padding: 0.25rem;
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  transition: all 0.15s;
}

.ds-install-copy:hover {
  color: var(--ds-text);
  background: var(--ds-surface);
}

.ds-install-copy img {
  display: block;
  opacity: 0.6;
  transition: opacity 0.15s;
  filter: invert(1);
}

.ds-install-copy:hover img {
  opacity: 1;
}

/* Preview + Code block */

.ds-preview {
  border-radius: var(--ds-radius);
  padding: 2rem 2rem 2rem 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  min-height: 96px;
  margin-bottom: 0.75rem;
}

.ds-preview--start {
  justify-content: flex-start;
  align-items: flex-start;
}

.ds-preview--col {
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  padding: 1.5rem 0;
}

.ds-code-block {
  /* Always dark regardless of page theme */
  --ds-code-bg: #1c1c1c;
  --ds-border: #2e2e2e;
  --ds-text: #cccccc;
  --ds-text-muted: #777777;
  --ds-surface: rgba(255, 255, 255, 0.06);
  --ds-accent: #e8e8e8;
  background: var(--ds-code-bg);
  border: 1px solid var(--ds-border);
  border-radius: 20px;
  overflow: clip;
  margin-bottom: 1.5rem;
}

.ds-code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--ds-code-bg);
  border-bottom: 1px solid var(--ds-border);
  padding: 0.5rem 1rem;
}

.ds-code-lang-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--ds-text-muted);
  font-family: var(--ds-font);
  padding: 0 0.25rem;
  user-select: none;
}

.ds-copy-btn {
  background: none;
  border: none;
  border-radius: 0.375rem;
  color: var(--ds-text-muted);
  font-size: 0.75rem;
  font-family: var(--ds-font);
  padding: 0.25rem;
  cursor: pointer;
  transition: all 0.15s;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
}

.ds-copy-btn:hover {
  color: var(--ds-text);
  background: var(--ds-surface);
}

.ds-copy-btn img {
  display: block;
  opacity: 0.6;
  transition: opacity 0.15s;
  filter: invert(1);
}

.ds-copy-btn:hover img {
  opacity: 1;
}

.ds-banner-reset-btn svg {
  transition: opacity 0.15s;
}

.ds-banner-reset-btn:hover svg {
  opacity: 1;
}

.ds-code-panel {
  background: var(--ds-code-bg);
  margin: 0;
  padding: 1rem 1.25rem;
  font-family: var(--ds-mono);
  font-size: 0.8125rem;
  line-height: 1.75;
  color: var(--ds-text);
  overflow-x: auto;
  tab-size: 2;
  scrollbar-width: thin;
}

.ds-code-panel code {
  background: transparent;
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  padding: 0;
  border-radius: 0;
  border: none;
}

.ds-code-panel::-webkit-scrollbar {
  height: 3px;
}

.ds-code-panel::-webkit-scrollbar-thumb {
  background: var(--ds-border);
}

/* Syntax token colors (VS Code Dark+ palette, scoped to code panels) */
.ds-code-panel .tok-keyword {
  color: #569cd6;
}
.ds-code-panel .tok-string {
  color: #ce9178;
}
.ds-code-panel .tok-comment {
  color: #6a9955;
  font-style: italic;
}
.ds-code-panel .tok-tag {
  color: #4ec9b0;
}
.ds-code-panel .tok-attr {
  color: #9cdcfe;
}
.ds-code-panel .tok-variable {
  color: #9cdcfe;
}
.ds-code-panel .tok-selector {
  color: #d7ba7d;
}
.ds-code-panel .tok-number {
  color: #b5cea8;
}
.ds-code-panel .tok-punctuation {
  color: #808080;
}
.ds-code-panel .tok-builtin {
  color: #dcdcaa;
}

/* Short-form token classes used in mcp.html — always dark inside a code block */
.ds-code-block .tok-key {
  color: #d7ba7d;
}
.ds-code-block .tok-str {
  color: #b5cea8;
}
.ds-code-block .tok-num {
  color: #f59e0b;
}
.ds-code-block .tok-pun {
  color: #808080;
}

.tok-color-swatch {
  display: inline-block;
  width: 0.65em;
  height: 0.65em;
  border-radius: 2px;
  border: 1px solid rgba(128, 128, 128, 0.4);
  outline: 1px solid rgba(0, 0, 0, 0.25);
  vertical-align: middle;
  margin-right: 0.3em;
  margin-bottom: 0.1em;
  flex-shrink: 0;
}

/* Size label */
.ds-size-label {
  font-size: 0.75rem;
  color: var(--ds-text-muted);
  margin: 0 0 0.5rem;
  font-family: var(--ds-font);
}

/* Props table */
.ds-props-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  margin-top: 1rem;
}

.ds-props-table th {
  text-align: left;
  padding: 0.5rem 0.75rem;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--ds-text-faint);
  border-bottom: 1px solid var(--ds-border);
}

.ds-props-table td {
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--ds-border-subtle);
  color: var(--ds-text-muted);
  vertical-align: top;
  line-height: 1.55;
}

.ds-props-table tr:last-child td {
  border-bottom: none;
}

.ds-props-table td:first-child {
  font-family: var(--ds-mono);
  font-size: 0.8125rem;
  color: var(--ds-text);
  white-space: nowrap;
}

.ds-props-table td code,
.ds-props-table td .ds-type {
  font-family: var(--ds-mono);
  font-size: 0.78rem;
  background: var(--ds-surface);
  padding: 0.1em 0.4em;
  border-radius: 0.25rem;
  color: var(--ds-text);
  border: 1px solid var(--ds-border);
}

/* UI components (live preview rendering) */

/* Button */
.ui-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1;
  border-radius: 9999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
  font-family: var(--ds-font);
  text-decoration: none;
  white-space: nowrap;
}

.ui-btn--primary {
  background: var(--ds-accent);
  color: var(--ds-bg);
  border-color: var(--ds-accent);
}

.ui-btn--primary:hover {
  opacity: 0.88;
}

.ui-btn--secondary {
  background: var(--ds-surface-hover);
  color: var(--ds-text);
  border-color: var(--ds-border);
}

.ui-btn--secondary:hover {
  border-color: var(--ds-text-muted);
}

.ui-btn--outline {
  background: transparent;
  color: var(--ds-text);
  border-color: var(--ds-border);
}

.ui-btn--outline:hover {
  background: var(--ds-surface);
}

.ui-btn--ghost {
  background: transparent;
  color: var(--ds-text-muted);
  border-color: transparent;
}

.ui-btn--ghost:hover {
  background: var(--ds-surface);
  color: var(--ds-text);
}

.ui-btn--sm {
  padding: 0.325rem 0.75rem;
  font-size: 0.8125rem;
}

.ui-btn--lg {
  padding: 0.625rem 1.375rem;
  font-size: 1rem;
}

.ui-btn--icon {
  padding: 0;
  width: 2rem;
  height: 2rem;
  flex-shrink: 0;
}

.ui-btn--icon img {
  filter: invert(1);
  opacity: 0.85;
}

.ui-btn--primary.ui-btn--icon img {
  filter: brightness(0);
  opacity: 1;
}

html[data-theme="light"] .ui-btn--primary.ui-btn--icon img {
  filter: invert(1);
  opacity: 1;
}

.ui-btn--icon.ui-btn--sm {
  width: 1.75rem;
  height: 1.75rem;
}

.ui-btn--icon.ui-btn--lg {
  width: 2.5rem;
  height: 2.5rem;
}

.ui-btn:disabled,
.ui-btn[disabled] {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

/* Badge */
.ui-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.55rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 9999px;
  border: 1px solid transparent;
  line-height: 1;
  letter-spacing: 0.01em;
}

.ui-badge--default {
  background: var(--ds-surface-hover);
  color: var(--ds-text);
  border-color: var(--ds-border);
}

.ui-badge--success {
  background: color-mix(in srgb, var(--ds-success) 10%, transparent);
  color: var(--ds-success);
  border-color: color-mix(in srgb, var(--ds-success) 25%, transparent);
}

.ui-badge--warning {
  background: color-mix(in srgb, var(--ds-warning) 10%, transparent);
  color: var(--ds-warning);
  border-color: color-mix(in srgb, var(--ds-warning) 25%, transparent);
}

.ui-badge--error {
  background: color-mix(in srgb, var(--ds-error) 10%, transparent);
  color: var(--ds-error);
  border-color: color-mix(in srgb, var(--ds-error) 25%, transparent);
}

.ui-badge--outline {
  background: transparent;
  color: var(--ds-text-muted);
  border-color: var(--ds-border);
}

/* Input */
.ui-field {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  width: 100%;
  max-width: 320px;
}

.ui-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ds-text);
}

.ui-hint {
  font-size: 0.8125rem;
  color: var(--ds-text-muted);
}

.ui-hint--error {
  color: var(--ds-error);
}

.ui-input {
  width: 100%;
  padding: 0.75rem 0.75rem 0.75rem 1rem;
  font-size: 0.875rem;
  font-family: var(--ds-font);
  color: var(--ds-text);
  background: var(--ds-bg);
  border: 1px solid var(--ds-border);
  border-radius: 9999px;
  outline: none;
  transition:
    border-color 0.15s,
    box-shadow 0.15s;
  line-height: 1.4;
}

.ui-input::placeholder {
  color: var(--ds-text-faint);
}

.ui-input:focus {
  border-color: var(--ds-accent);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--ds-accent) 10%, transparent);
}

.ui-input--error {
  border-color: var(--ds-error);
}

.ui-input--error:focus {
  border-color: var(--ds-error);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--ds-error) 12%, transparent);
}

/* Card */
.ui-card {
  background: var(--ds-bg);
  border: 1px solid var(--ds-border);
  border-radius: 0.75rem;
  overflow: hidden;
  width: 100%;
  max-width: 360px;
}

.ui-card-header {
  padding: 1rem 1.25rem 0.875rem;
  border-bottom: 1px solid var(--ds-border);
}

.ui-card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--ds-text);
  margin: 0 0 0.25rem;
}

.ui-card-subtitle {
  font-size: 0.875rem;
  color: var(--ds-text-muted);
  margin: 0;
}

.ui-card-body {
  padding: 1rem 1.25rem;
  font-size: 0.9375rem;
  color: var(--ds-text-muted);
  line-height: 1.6;
}

.ui-card-footer {
  padding: 0.75rem 1.25rem;
  border-top: 1px solid var(--ds-border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Tabs (pill + slider) */
.ui-tabs {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  min-width: 0;
}

.ui-tabs-list {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--ds-surface);
  border: 1px solid var(--ds-border);
  border-radius: 9999px;
  padding: 3px;
  width: fit-content;
}

.ui-tabs-slider {
  position: absolute;
  top: 2px;
  left: 2px;
  height: calc(100% - 4px);
  background: var(--ds-bg);
  border-radius: 9999px;
  border: none;
  pointer-events: none;
  z-index: 0;
}

.ui-tab-trigger {
  position: relative;
  z-index: 1;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ds-text-muted);
  background: none;
  border: none;
  border-radius: 9999px;
  cursor: pointer;
  font-family: var(--ds-font);
  transition: color 0.15s;
  white-space: nowrap;
}

.ui-tab-trigger:hover {
  color: var(--ds-text);
}

.ui-tab-trigger.active,
.ui-tab-trigger[aria-selected="true"] {
  color: var(--ds-text);
}

.ui-tab-panel {
  padding: 1rem 0.25rem;
  font-size: 0.9375rem;
  color: var(--ds-text-muted);
  line-height: 1.6;
  display: none;
  max-width: 100%;
}

.ui-tab-panel.active {
  display: block;
}

/* Tabs small variant */
.ui-tabs--sm .ui-tab-trigger {
  padding: 0.25rem 0.625rem;
  font-size: 0.8125rem;
}

/* ds-code-header pill tabs (always dark context) */
.ds-code-header .ui-tabs--sm .ui-tabs-list {
  background: rgba(255, 255, 255, 0.05);
  border-color: #2e2e2e;
}

.ds-code-header .ui-tabs--sm .ui-tabs-slider {
  background: #1c1c1c;
  border-color: #2e2e2e;
}

.ds-code-header .ui-tabs--sm .ui-tab-trigger {
  color: #cccccc;
}

.ds-code-header .ui-tabs--sm .ui-tab-trigger.active,
.ds-code-header .ui-tabs--sm .ui-tab-trigger[aria-selected="true"] {
  color: #cccccc;
}

/* Accordion */
.ui-accordion {
  display: flex;
  flex-direction: column;
  width: 100%;
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius);
  overflow: hidden;
}

.ui-accordion-item {
  border-bottom: 1px solid var(--ds-border);
}

.ui-accordion-item:last-child {
  border-bottom: none;
}

.ui-accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem 1rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ds-text);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--ds-font);
  text-align: left;
  transition: background 0.15s;
}

.ui-accordion-trigger:hover {
  background: var(--ds-surface-hover);
}

.ui-accordion-chevron {
  flex-shrink: 0;
  transition: transform 0.2s;
  color: var(--ds-text-muted);
}

.ui-accordion-trigger[aria-expanded="true"] .ui-accordion-chevron {
  transform: rotate(180deg);
}

.ui-accordion-content {
  padding: 0 1rem;
  font-size: 0.9375rem;
  color: var(--ds-text-muted);
  line-height: 1.65;
  max-height: 0;
  overflow: hidden;
  transition:
    max-height 0.28s cubic-bezier(0.4, 0, 0.2, 1),
    padding 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

.ui-accordion-content.open {
  max-height: 400px;
  padding: 0 1rem 0.875rem;
}

/* Separator */
.ui-separator {
  width: 100%;
  height: 1px;
  background: var(--ds-border);
  border: none;
  margin: 0;
}

/* Design token sections */

/* Type scale */
.ds-type-scale {
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius);
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.ds-type-row {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 0.875rem 1.25rem;
  border-bottom: 1px solid var(--ds-border-subtle);
}

.ds-type-row:last-child {
  border-bottom: none;
}

.ds-type-label {
  font-size: 0.75rem;
  color: var(--ds-text-muted);
  font-family: var(--ds-mono);
  width: 170px;
  flex-shrink: 0;
  white-space: nowrap;
}

/* Color swatches */
.ds-color-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 0.625rem;
  margin-bottom: 1.5rem;
}

.ds-color-swatch {
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius);
  overflow: hidden;
}

.ds-color-preview {
  height: 52px;
}

.ds-color-info {
  padding: 0.5rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.ds-color-name {
  font-family: var(--ds-mono);
  font-size: 0.7rem;
  color: var(--ds-text);
}

.ds-color-desc {
  font-size: 0.6875rem;
  color: var(--ds-text-muted);
}

/* Logo grid */
.ds-logo-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.ds-logo-tile {
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius);
  padding: 2rem 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.ds-logo-tile--dark {
  background: var(
    --ds-logo-tile-dark-bg
  ); /* always dark — shows white logo variant */
}

.ds-logo-tile--light {
  background: var(
    --ds-logo-tile-light-bg
  ); /* always light — shows dark logo variant */
}

.ds-logo-asset {
  height: 36px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
}

.ds-logo-asset--sm {
  height: 28px;
}

.ds-logo-label {
  font-size: 0.75rem;
  color: var(--ds-text-muted);
  text-align: center;
}

.ds-logo-label--on-light {
  color: #666666; /* fixed: always on a light tile regardless of page theme */
}

/* Tooltip */
.ui-tooltip-wrap {
  position: relative;
  display: inline-flex;
}

.ui-tooltip {
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: var(--tooltip-bg);
  color: var(--tooltip-text);
  border: none;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.25rem 0.75rem;
  border-radius: 0.5rem;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition:
    opacity 0.15s,
    transform 0.15s;
  z-index: 10;
}

.ui-tooltip-wrap:hover .ui-tooltip,
.ui-tooltip-wrap:focus-within .ui-tooltip {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.ui-tooltip--bottom {
  bottom: auto;
  top: calc(100% + 6px);
  transform: translateX(-50%) translateY(-4px);
}

.ui-tooltip-wrap:hover .ui-tooltip--bottom,
.ui-tooltip-wrap:focus-within .ui-tooltip--bottom {
  transform: translateX(-50%) translateY(0);
}

.ui-tooltip--right {
  left: auto;
  right: 0;
  transform: translateX(0) translateY(-4px);
}

.ui-tooltip--bottom.ui-tooltip--right {
  transform: translateX(0) translateY(-4px);
}

.ui-tooltip-wrap:hover .ui-tooltip--right,
.ui-tooltip-wrap:focus-within .ui-tooltip--right {
  transform: translateX(0) translateY(0);
}

.ui-tooltip-wrap:hover .ui-tooltip--bottom.ui-tooltip--right,
.ui-tooltip-wrap:focus-within .ui-tooltip--bottom.ui-tooltip--right {
  transform: translateX(0) translateY(0);
}

/* Icon grid */
.ds-icon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(96px, 1fr));
  gap: 0.625rem;
}

.ds-icon-tile {
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius);
  padding: 1.25rem 0.75rem 0.75rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.625rem;
  cursor: pointer;
  transition:
    background 0.15s,
    border-color 0.15s;
}

.ds-icon-tile:hover {
  background: var(--ds-surface);
}

.ds-icon-tile.ds-icon-copied {
  border-color: var(--ds-accent, #888);
  background: var(--ds-surface);
}

.ds-icon-tile.ds-icon-copied .ds-icon-name {
  color: var(--ds-accent, #888);
}

.ds-icon-img {
  display: block;
  filter: invert(1);
}

.ds-icon-img--colored {
  filter: none;
}

/* strips any hardcoded SVG fill color so the icon follows the same
   invert(1)/none logic as black-filled icons */
.ds-icon-img.ds-icon-img--normalize {
  filter: brightness(0) invert(0.73);
}

[data-theme="light"] .ds-icon-img.ds-icon-img--normalize {
  filter: brightness(0) invert(0.33);
}

[data-theme="light"] .ds-icon-img {
  filter: none;
}

.ds-icon-name {
  font-family: var(--ds-mono);
  font-size: 0.6875rem;
  color: var(--ds-text-muted);
  text-align: center;
  word-break: break-all;
}

/* Responsive */

@media (max-width: 900px) {
  .ds-main {
    padding: 2rem 2rem 4rem;
  }
}

@media (max-width: 768px) {
  body.ds-page {
    overflow-x: hidden;
  }

  .ds-sidebar {
    position: fixed;
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: auto;
    border-top: var(--border-width-1) solid var(--ds-border);
    border-bottom: none;
    z-index: 20;
    background: var(--ds-bg);
    padding-bottom: env(safe-area-inset-bottom, 0);
  }

  .ds-nav {
    display: flex;
    flex-direction: row;
    align-items: center;
    overflow-x: auto;
    padding: 0.25rem 0 0.5rem;
    scrollbar-width: none;
    gap: 0;
  }

  .ds-nav-link {
    display: inline-flex;
    align-items: center;
  }

  /* Small end padding for touch scroll comfort */
  .ds-nav::before,
  .ds-nav::after {
    content: "";
    flex-shrink: 0;
    width: 0;
  }

  .ds-nav::-webkit-scrollbar {
    display: none;
  }

  /* Pill wrapper — one continuous pill strip */
  .ds-nav-group {
    display: contents;
  }

  .ds-nav-label {
    display: none;
  }

  /* Nav becomes a pill-tabs row */
  .ds-nav-link {
    padding: 0.5rem 0.875rem;
    margin: 0;
    border-radius: 9999px;
    border-bottom: none;
    white-space: nowrap;
    font-size: 0.875rem;
    flex-shrink: 0;
  }

  .ds-nav-link.active {
    background: var(--ds-surface);
    color: var(--ds-text);
  }

  .ds-main {
    padding: 1.5rem 1.25rem 6rem;
  }

  /* Restore top scroll margin (no top sticky bar anymore) */
  .ds-section {
    scroll-margin-top: 1rem;
  }

  .ds-features-grid {
    grid-template-columns: 1fr;
  }

  .ds-intro-title {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .ds-preview {
    padding: 1.5rem 0;
  }

  .ds-main {
    padding: 1.25rem 1rem 4rem;
  }

  /* Logo wordmark — stack tiles vertically */
  .ds-logo-grid {
    grid-template-columns: 1fr;
  }

  /* Typography type label — narrower to avoid wrapping */
  .ds-type-label {
    width: 100px;
  }

  /* Props table — contained horizontal scroll, no page overflow */
  .ds-props-table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .ds-props-table td:first-child {
    white-space: nowrap;
  }
}

/* UI modal */

.ui-modal-overlay {
  position: fixed;
  inset: 0;
  font-size: 1rem;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease;
}

.ui-modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.ui-modal {
  background: var(--ds-sidebar-bg);
  border: 1px solid var(--ds-border);
  border-radius: 1rem;
  padding: 1.5rem;
  max-width: 360px;
  width: calc(100% - 2rem);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transform: scale(0.95);
  transition: transform 0.15s ease;
}

.ui-modal-overlay.open .ui-modal {
  transform: scale(1);
}

.ui-modal-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--ds-text);
  margin: 0;
}

.ui-modal-body {
  font-size: 0.875rem;
  color: var(--ds-text-muted);
  line-height: 1.5;
  margin: 0;
}

.ui-modal-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
  margin-top: 0.5rem;
}

.ui-modal-btn {
  padding: 0.45rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-family: inherit;
  cursor: pointer;
  border: 1px solid var(--ds-border);
  transition:
    background 0.15s,
    border-color 0.15s,
    color 0.15s;
}

.ui-modal-btn--cancel {
  background: transparent;
  color: var(--ds-text-muted);
}

.ui-modal-btn--cancel:hover {
  background: var(--ds-surface);
  color: var(--ds-text);
}

.ui-modal-btn--confirm {
  background: var(--ds-accent);
  color: var(--ds-bg);
  border-color: var(--ds-accent);
}

.ui-modal-btn--confirm:hover {
  opacity: 0.9;
}

/* Elevation grid */
.ds-elevation-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.ds-elevation-card {
  border-radius: var(--ds-radius);
  background: var(--ds-bg);
  border: 1px solid var(--ds-border);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2rem;
  padding: 1.25rem 1rem 1rem;
}

.ds-elevation-preview {
  width: 100%;
  height: 64px;
  border-radius: calc(var(--ds-radius) * 0.6);
  background: #1d1d1d;
}

[data-theme="light"] .ds-elevation-preview {
  background: #ffffff;
}

.ds-elevation-preview--sm {
  box-shadow: var(--ds-shadow-sm);
}
.ds-elevation-preview--md {
  box-shadow: var(--ds-shadow-md);
}
.ds-elevation-preview--lg {
  box-shadow: var(--ds-shadow-lg);
}
.ds-elevation-preview--xl {
  box-shadow: var(--ds-shadow-xl);
}

.ds-elevation-info {
  display: flex;
  flex-direction: column;
}

.ds-elevation-name {
  font-family: var(--ds-mono);
  font-size: 0.8125rem;
  color: var(--ds-text);
}

.ds-elevation-desc {
  font-size: 0.75rem;
  color: var(--ds-text-muted);
}

/* Motion section */
.ds-animation-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.ds-animation-card {
  border-radius: var(--ds-radius);
  border: 1px solid var(--ds-border);
  overflow: hidden;
  background: var(--ds-surface);
}

.ds-animation-preview {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ds-bg);
  border-bottom: 1px solid var(--ds-border);
}

.ds-animation-info {
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.ds-animation-name {
  font-family: var(--ds-mono);
  font-size: 0.8125rem;
  color: var(--ds-text);
}

.ds-animation-desc {
  font-size: 0.75rem;
  color: var(--ds-text-muted);
  line-height: 1.5;
}

/* Pulse demo */
.ds-anim-pulse {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-listening);
  animation: ds-pulse 1.5s ease-in-out infinite;
}

@keyframes ds-pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0
      color-mix(in srgb, var(--color-listening) 40%, transparent);
  }
  50% {
    box-shadow: 0 0 0 10px
      color-mix(in srgb, var(--color-listening) 0%, transparent);
  }
}

/* Breathe demo */
.ds-anim-breathe {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--ds-text-muted);
  animation: ds-breathe 2.5s ease-in-out infinite;
}

@keyframes ds-breathe {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.3;
  }
}

/* Ripple demo */
.ds-anim-ripple-wrap {
  position: relative;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ds-anim-ripple {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid var(--ds-text);
  animation: ds-ripple 1.2s ease-out infinite;
}

@keyframes ds-ripple {
  0% {
    transform: scale(0.5);
    opacity: 0.8;
  }
  100% {
    transform: scale(1.8);
    opacity: 0;
  }
}

/* Dots bounce demo */
.ds-anim-dots {
  display: flex;
  gap: 5px;
  align-items: center;
}

.ds-anim-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ds-text-muted);
  animation: ds-dot-bounce 1.2s ease-in-out infinite;
}

.ds-anim-dots span:nth-child(2) {
  animation-delay: 0.15s;
}
.ds-anim-dots span:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes ds-dot-bounce {
  0%,
  80%,
  100% {
    transform: translateY(0) scale(0.8);
    opacity: 0.5;
  }
  40% {
    transform: translateY(-8px) scale(1);
    opacity: 1;
  }
}

/* Shimmer demo */
.ds-anim-shimmer {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 120px;
}

.ds-anim-shimmer-bar {
  width: 100%;
  height: 10px;
  border-radius: 4px;
  background: linear-gradient(
    90deg,
    var(--ds-border) 25%,
    var(--ds-surface) 50%,
    var(--ds-border) 75%
  );
  background-size: 200% 100%;
  animation: ds-shimmer 1.4s infinite;
}

@keyframes ds-shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Typing dots demo */
.ds-anim-typing {
  display: flex;
  gap: 5px;
  align-items: center;
}

.ds-anim-typing span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ds-text-muted);
  animation: ds-typing 1.2s ease-in-out infinite;
}

.ds-anim-typing span:nth-child(2) {
  animation-delay: 0.2s;
}
.ds-anim-typing span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes ds-typing {
  0%,
  60%,
  100% {
    transform: translateY(0);
    opacity: 0.4;
  }
  30% {
    transform: translateY(-6px);
    opacity: 1;
  }
}

/* Cursor blink demo */
.ds-anim-blink {
  font-family: var(--ds-mono);
  font-size: 1.5rem;
  color: var(--ds-text);
  animation: ds-blink 0.6s step-end infinite;
}

@keyframes ds-blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}

/* Wave demo */
.ds-anim-wave {
  font-size: 1.75rem;
  transform-origin: 70% 70%;
  animation: ds-wave 1.8s ease-in-out infinite;
}

@keyframes ds-wave {
  0% {
    transform: rotate(0deg);
  }
  10% {
    transform: rotate(14deg);
  }
  20% {
    transform: rotate(-8deg);
  }
  30% {
    transform: rotate(14deg);
  }
  40% {
    transform: rotate(-4deg);
  }
  50% {
    transform: rotate(10deg);
  }
  60% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(0deg);
  }
}

/* Easing demos */
.ds-easing-preview {
  padding: 0 1.5rem;
  overflow: hidden;
}

.ds-easing-demo {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--ds-text);
  position: relative;
}

.ds-easing-standard {
  animation: ds-easing-run 1.6s cubic-bezier(0.4, 0, 0.2, 1) infinite alternate;
}

.ds-easing-spring {
  animation: ds-easing-run 1.2s cubic-bezier(0.34, 1.56, 0.64, 1) infinite
    alternate;
}

.ds-easing-ease-out {
  animation: ds-easing-run 1.2s ease-out infinite alternate;
}

.ds-easing-ease-in-out {
  animation: ds-easing-run 1.4s ease-in-out infinite alternate;
}

@keyframes ds-easing-run {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(120px);
  }
}

/* Pause motion demos when their section is off-screen — set by IntersectionObserver */
#motion:not(.in-view) .ds-anim-pulse,
#motion:not(.in-view) .ds-anim-breathe,
#motion:not(.in-view) .ds-anim-ripple,
#motion:not(.in-view) .ds-anim-dots span,
#motion:not(.in-view) .ds-anim-shimmer-bar,
#motion:not(.in-view) .ds-anim-typing span,
#motion:not(.in-view) .ds-anim-blink,
#motion:not(.in-view) .ds-anim-wave,
#motion:not(.in-view) .ds-easing-demo {
  animation-play-state: paused;
}

/* Honor user OS-level reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  .ds-anim-pulse,
  .ds-anim-breathe,
  .ds-anim-ripple,
  .ds-anim-dots span,
  .ds-anim-shimmer-bar,
  .ds-anim-typing span,
  .ds-anim-blink,
  .ds-anim-wave,
  .ds-easing-demo {
    animation: none !important;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Border section */
.ds-border-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.ds-border-card {
  border-radius: var(--ds-radius);
  background: var(--ds-bg);
  border: 1px solid var(--ds-border);
  overflow: hidden;
}

.ds-border-preview {
  height: 64px;
  margin: 1rem;
  border-radius: calc(var(--ds-radius) * 0.5);
  background: var(--ds-bg);
}

.ds-border-preview--w1 {
  border: var(--border-width-1) solid #9c9c9c;
}

.ds-border-preview--w2 {
  border: var(--border-width-2) solid #9c9c9c;
}

.ds-border-info {
  padding: 0 1rem 0.875rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.ds-border-name {
  font-family: var(--ds-mono);
  font-size: 0.8125rem;
  color: var(--ds-text);
}

.ds-border-desc {
  font-size: 0.75rem;
  color: var(--ds-text-muted);
  line-height: 1.5;
}

/* Space section */
.ds-space-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  padding: 1rem;
  border-radius: var(--ds-radius);
  background: var(--ds-bg);
  border: 1px solid var(--ds-border);
}

.ds-space-row {
  display: grid;
  grid-template-columns: 110px 60px 1fr;
  align-items: center;
  gap: 1rem;
  padding: 0.375rem 0.5rem;
  border-radius: 0.375rem;
}

.ds-space-row:hover {
  background: var(--ds-surface-hover);
}

.ds-space-name {
  font-family: var(--ds-mono);
  font-size: 0.8125rem;
  color: var(--ds-text);
}

.ds-space-value {
  font-family: var(--ds-mono);
  font-size: 0.75rem;
  color: var(--ds-text-muted);
  text-align: right;
}

.ds-space-bar {
  height: 16px;
  display: flex;
  align-items: center;
}

.ds-space-bar-fill {
  display: block;
  height: 16px;
  background: var(--ds-text);
  border-radius: 2px;
}

.ds-space-bar-fill--1 {
  width: var(--space-1);
}
.ds-space-bar-fill--2 {
  width: var(--space-2);
}
.ds-space-bar-fill--3 {
  width: var(--space-3);
}
.ds-space-bar-fill--4 {
  width: var(--space-4);
}
.ds-space-bar-fill--5 {
  width: var(--space-5);
}
.ds-space-bar-fill--6 {
  width: var(--space-6);
}
.ds-space-bar-fill--8 {
  width: var(--space-8);
}
.ds-space-bar-fill--10 {
  width: var(--space-10);
}
.ds-space-bar-fill--12 {
  width: var(--space-12);
}
.ds-space-bar-fill--16 {
  width: var(--space-16);
}

/* Radius subsection */
.ds-radius-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.ds-radius-card {
  border-radius: var(--ds-radius);
  background: var(--ds-bg);
  border: 1px solid var(--ds-border);
  overflow: hidden;
}

.ds-radius-preview {
  width: 64px;
  height: 64px;
  margin: 1rem auto 0.75rem;
  background: var(--ds-bg);
  border: 1px solid #9c9c9c;
}

.ds-radius-preview--sm {
  border-radius: var(--radius-sm);
}
.ds-radius-preview--md {
  border-radius: var(--radius-md);
}
.ds-radius-preview--lg {
  border-radius: var(--radius-lg);
}
.ds-radius-preview--full {
  border-radius: var(--radius-full);
}

.ds-radius-info {
  padding: 0 1rem 0.875rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  align-items: center;
  text-align: center;
}

.ds-radius-name {
  font-family: var(--ds-mono);
  font-size: 0.8125rem;
  color: var(--ds-text);
}

.ds-radius-desc {
  font-size: 0.75rem;
  color: var(--ds-text-muted);
  line-height: 1.5;
}

/* Token preview grids — 2 columns on mobile */
@media (max-width: 480px) {
  .ds-border-grid,
  .ds-elevation-grid,
  .ds-radius-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Nav search */
.ds-nav-search {
  margin: 0 var(--space-2) var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* Field wrapper: contains icon, input, clear — provides containing block for absolute children */
.ds-nav-search-field {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
  min-width: 0;
}

/* Toggle button — only visible on mobile when collapsed */
.ds-nav-search-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  background: var(--ds-surface);
  border: var(--border-width-1) solid var(--ds-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.15s;
}

.ds-nav-search-toggle:hover {
  background: var(--ds-surface-hover);
}

.ds-nav-search-icon {
  position: absolute;
  left: var(--space-3);
  width: 14px;
  height: 14px;
  background-color: var(--ds-text-muted);
  pointer-events: none;
  z-index: 1;
}

.ds-nav-search-input {
  width: 100%;
  padding: var(--space-2) 2rem var(--space-2) 2rem;
  font-size: 0.875rem;
  line-height: 1.25;
  font-family: var(--ds-font);
  color: var(--ds-text);
  background: var(--ds-surface);
  border: var(--border-width-1) solid var(--ds-border);
  border-radius: var(--radius-full);
  outline: none;
  transition:
    border-color 0.15s,
    background 0.15s;
}

[data-theme="light"] .ds-nav-search-input {
  background: var(--color-white);
}

.ds-nav-search-input::placeholder {
  color: var(--ds-text-muted);
}

.ds-nav-search-input:focus {
  border-color: var(--ds-text-muted);
  background: var(--ds-bg);
}

/* Hide the native clear button to use our own */
.ds-nav-search-input::-webkit-search-cancel-button {
  -webkit-appearance: none;
  appearance: none;
}

.ds-nav-search-clear {
  position: absolute;
  right: var(--space-2);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
  border-radius: var(--radius-full);
  transition: background 0.15s;
}

.ds-nav-search-clear[hidden] {
  display: none;
}

.ds-nav-search-clear .icon {
  width: 12px;
  height: 12px;
  background-color: var(--ds-text-muted);
}

.ds-nav-search-clear:hover .icon {
  background-color: var(--ds-text);
}

.ds-nav-search-clear:hover {
  background: var(--ds-surface-hover);
}

.ds-nav-link.ds-nav-link--hidden,
.ds-nav-group.ds-nav-group--hidden {
  display: none;
}

.ds-nav-empty {
  margin: var(--space-2) var(--space-2) 0;
  padding: 0 var(--space-3);
  font-size: 0.875rem;
  color: var(--ds-text-muted);
}

/* CSS mask icon system — scoped to ds-page so .icon color doesn't override chat.css on index.html */
.ds-page .icon {
  display: inline-block;
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  background-color: var(--ds-text-muted);
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  -webkit-mask-size: contain;
  mask-size: contain;
  vertical-align: middle;
}

.ds-page .icon-search {
  -webkit-mask-image: url(/assets/images/icons/search.svg);
  mask-image: url(/assets/images/icons/search.svg);
}
.ds-page .icon-close {
  -webkit-mask-image: url(/assets/images/icons/close.svg);
  mask-image: url(/assets/images/icons/close.svg);
}

/* Desktop — sticky search at top of nav */
@media (min-width: 769px) {
  .ds-nav-search {
    position: sticky;
    top: 0;
    z-index: 5;
    background: var(--ds-bg);
  }
}

/* Mobile — collapsed: show toggle button only */
@media (max-width: 768px) {
  .ds-nav-search {
    position: sticky;
    left: 0;
    margin: 0;
    flex-shrink: 0;
    align-self: stretch;
    background: var(--ds-bg);
    z-index: 6;
    padding: var(--space-2) var(--space-3) var(--space-2) var(--space-4);
  }

  .ds-nav-search-toggle {
    display: flex;
    width: 36px;
    height: 36px;
    background: var(--ds-surface-hover);
    border-color: var(--ds-border);
  }

  [data-theme="light"] .ds-nav-search-toggle {
    background: var(--color-white);
  }

  .ds-nav-search-input {
    height: 36px;
    background: var(--ds-surface-hover);
    font-size: 1rem;
  }

  [data-theme="light"] .ds-nav-search-input {
    background: var(--color-white);
  }

  /* Collapsed: hide field (icon + input + clear) */
  .ds-nav-search:not(.ds-nav-search--expanded) .ds-nav-search-field {
    display: none;
  }

  /* Expanded: hide toggle, show field */
  .ds-nav-search--expanded .ds-nav-search-toggle {
    display: none;
  }

  /* Expanded: search bar fixed at bottom, field stretches full width */
  .ds-nav-search--expanded {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    padding: var(--space-3) var(--space-4) var(--space-4);
    background: var(--ds-bg);
    border-top: var(--border-width-1) solid var(--ds-border);
    z-index: 25;
    height: auto;
    align-items: center;
  }

  /* Expanded + has a query: results dropdown floats just above the search bar */
  .ds-sidebar:has(.ds-nav-search--expanded) .ds-nav-results[data-has-query] {
    position: fixed;
    left: 0;
    right: 0;
    bottom: calc(64px + env(safe-area-inset-bottom, 0));
    max-height: 60vh;
    overflow-y: auto;
    background: var(--ds-bg);
    border-top: var(--border-width-1) solid var(--ds-border);
    z-index: 24;
    display: block;
    padding: var(--space-2) 0;
  }

  /* Groups in results dropdown — only when there's an active query */
  .ds-sidebar:has(.ds-nav-search--expanded)
    .ds-nav-results[data-has-query]
    .ds-nav-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    flex-shrink: 0;
  }

  .ds-sidebar:has(.ds-nav-search--expanded)
    .ds-nav-results[data-has-query]
    .ds-nav-group.ds-nav-group--hidden {
    display: none;
  }

  .ds-sidebar:has(.ds-nav-search--expanded)
    .ds-nav-results[data-has-query]
    .ds-nav-link {
    display: block;
    border-radius: var(--radius-sm);
    padding: var(--space-2) var(--space-3);
    white-space: normal;
    margin: 0;
  }

  .ds-sidebar:has(.ds-nav-search--expanded)
    .ds-nav-results[data-has-query]
    .ds-nav-link.ds-nav-link--hidden {
    display: none;
  }

  .ds-sidebar:has(.ds-nav-search--expanded)
    .ds-nav-results[data-has-query]
    .ds-nav-empty {
    padding: var(--space-3) var(--space-4);
    margin: 0;
  }
}

/* Hide empty state by attribute regardless of theme/viewport */
.ds-nav-empty[hidden] {
  display: none;
}