:root,
:root[data-theme="system"],
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0B0D10;
  --surface: #14171C;
  --text: #E8EAED;
  --muted: #8B919A;
  --accent: #6E7CF6;
  --border: #23272E;
  /* Tokyo Night purple — locked for install URL / code strings (see website_design.md) */
  --code-string: #BB9AF7;
  /* Layout / type tokens (live-editable via ?edit=1 Style panel) */
  --header-height: 4rem; /* 64px — supabase.com h-16 */
  --header-pad-x: 1.5rem;
  --brand-size: 1.125rem;
  --brand-mark-size: 1.5rem;
  --nav-size: 0.875rem;
  --body-size: 1.0625rem;
}

@media (prefers-color-scheme: light) {
  :root[data-theme="system"] {
    color-scheme: light;
    --bg: #FAFAF9;
    --surface: #FFFFFF;
    --text: #1A1D21;
    --muted: #8B919A;
    --accent: #6E7CF6;
    --border: #E5E4E0;
  }
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #FAFAF9;
  --surface: #FFFFFF;
  --text: #1A1D21;
  --muted: #8B919A;
  --accent: #6E7CF6;
  --border: #E5E4E0;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, sans-serif;
  font-size: var(--body-size);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.25s ease, color 0.25s ease;
  padding-top: var(--header-height);
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

code {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.85em;
  color: var(--muted);
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: var(--header-height);
  min-height: var(--header-height);
  padding: 0 var(--header-pad-x);
  border-bottom: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
  background: color-mix(in srgb, var(--bg) 55%, transparent);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  z-index: 10;
  transform: translateY(0);
  transition: transform 0.28s ease, background-color 0.25s ease, border-color 0.25s ease;
}

.site-header.is-scrolled {
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  border-bottom-color: var(--border);
}

.site-header.is-hidden {
  transform: translateY(-100%);
}

:root[data-editing="true"] .site-header,
:root[data-editing="true"] .site-header.is-hidden {
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .site-header {
    transition: background-color 0.2s ease, border-color 0.2s ease;
  }

  .site-header.is-hidden {
    transform: none;
  }
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: var(--brand-size);
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--text);
  line-height: 1;
}

.brand:hover {
  color: var(--accent);
}

.brand-mark {
  width: var(--brand-mark-size);
  height: var(--brand-mark-size);
  flex-shrink: 0;
  display: block;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.85rem 1.15rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem 1.15rem;
  margin-left: auto;
}

.nav-link {
  font-family: "JetBrains Mono", monospace;
  font-size: var(--nav-size);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--muted);
}

.nav-link:hover {
  color: var(--accent);
}

.nav-github {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 0;
}

.nav-github svg {
  display: block;
  width: 1.15rem;
  height: 1.15rem;
}

.beta-badge {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.65rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 2px 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--accent);
  vertical-align: middle;
  margin-left: 8px;
}

.beta-line {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 12px;
}

main {
  flex: 1;
  width: 100%;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

.page-col {
  width: min(720px, 100%);
  margin: 0 auto;
}

.hero {
  position: relative;
  padding: 4.5rem 0 3.5rem;
  isolation: isolate;
  width: min(1080px, 100%);
  margin: 0 auto;
}

.hero-pattern {
  position: absolute;
  inset: -1rem -2rem 0;
  color: var(--text);
  opacity: 0.06;
  pointer-events: none;
  z-index: -1;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 2rem 2.5rem;
  align-items: start;
}

.hero-copy {
  min-width: 0;
}

.hero-install {
  min-width: 0;
}

.client-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  padding: 0.3rem;
  margin: 0 0 0.75rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 88%, var(--text) 12%);
  border: 1px solid var(--border);
  overflow-x: auto;
}

.client-tab {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-family: Inter, system-ui, sans-serif;
  font-size: 0.78rem;
  font-weight: 500;
  white-space: nowrap;
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  cursor: pointer;
  line-height: 1.2;
}

.client-tab:hover {
  color: var(--text);
}

.client-tab[aria-selected="true"] {
  background: var(--text);
  color: var(--bg);
}

.install-card {
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  /* Was previously one fill for the whole card: var(--surface) → #14171C (dark) / #FFFFFF (light). */
  background: #000;
  overflow: hidden;
}

.install-topbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface); /* keep chrome strip: #14171C dark / #FFFFFF light */
}

.install-dots {
  display: inline-flex;
  gap: 0.35rem;
}

.install-dots .dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  display: block;
}

.install-dots .dot.red {
  background: #ff5f57;
}

.install-dots .dot.amber {
  background: #febc2e;
}

.install-dots .dot.green {
  background: #28c840;
}

.install-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: lowercase;
}

.install-body {
  margin: 0;
  padding: 1rem 0.95rem 0.35rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--text);
  white-space: pre;
  overflow-x: auto;
  background: #000;
}

.install-body .install-url {
  color: var(--code-string);
}

.install-actions {
  display: flex;
  justify-content: flex-end;
  padding: 0.55rem 0.85rem 0.85rem;
}

.copy-btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border: 1px solid transparent;
  border-radius: 0.4rem;
  background: var(--accent);
  color: #fff;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 0.45rem 0.75rem;
  cursor: pointer;
}

.copy-btn .copy-icon {
  flex-shrink: 0;
  display: block;
  width: 0.9rem;
  height: 0.9rem;
}

.copy-btn:hover {
  filter: brightness(1.08);
}

.copy-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.install-note {
  margin: 0.65rem 0 0;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  color: var(--muted);
}

@media (max-width: 820px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-install,
  .install-card {
    width: 100%;
  }

  .client-tabs {
    border-radius: 0.85rem;
    justify-content: flex-start;
  }

  .install-body {
    font-size: 0.7rem;
  }
}

.eyebrow,
.tag-row {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 1rem;
}

h1,
h2 {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}

h1 {
  font-size: clamp(2rem, 5.5vw, 2.85rem);
  max-width: 16ch;
}

h2 {
  font-size: clamp(1.5rem, 3.5vw, 1.85rem);
}

.hero-sub,
.section-lead {
  margin: 0;
  max-width: 48ch;
  color: var(--muted);
  font-size: 1.05rem;
}

.section-lead {
  margin-bottom: 1.5rem;
}

.surfaces,
.products,
.about {
  padding: 2.75rem 0;
  border-top: 1px solid var(--border);
}

.about p {
  margin: 0;
  max-width: 54ch;
}

.about a {
  color: var(--accent);
  text-decoration: none;
}

.about a:hover {
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.tag-row {
  margin: 1.5rem 0 0;
  text-transform: none;
  letter-spacing: 0.04em;
}

.link-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 0.85rem;
  background: color-mix(in srgb, var(--surface) 70%, transparent);
  overflow: hidden;
}

.link-list li {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1rem 1.1rem;
  border-bottom: 1px solid var(--border);
  transition: background-color 0.18s ease;
}

.link-list li:last-child {
  border-bottom: 0;
}

.link-list li:hover {
  background: color-mix(in srgb, var(--text) 4%, transparent);
}

.link-list a {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.link-list a:hover {
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.link-list span {
  color: var(--muted);
  font-size: 0.95rem;
  max-width: 52ch;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.footer-copy {
  margin: 0;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.footer-copy a {
  color: var(--muted);
  text-decoration: none;
}

.footer-copy a:hover {
  color: var(--accent);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.theme-toggle {
  position: relative;
  margin-left: auto;
  flex-shrink: 0;
}

.theme-btn {
  appearance: none;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  padding: 0;
  border: 0;
  border-radius: 0.35rem;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.theme-btn:hover {
  color: var(--text);
  background: color-mix(in srgb, var(--text) 6%, transparent);
}

.theme-btn .icon-sun,
.theme-btn .icon-moon {
  position: absolute;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.theme-btn .icon-sun {
  opacity: 1;
  transform: rotate(0) scale(1);
}

.theme-btn .icon-moon {
  opacity: 0;
  transform: rotate(90deg) scale(0);
}

:root[data-theme="dark"] .theme-btn .icon-sun,
:root[data-theme="system"] .theme-btn .icon-sun {
  opacity: 0;
  transform: rotate(-90deg) scale(0);
}

:root[data-theme="dark"] .theme-btn .icon-moon,
:root[data-theme="system"] .theme-btn .icon-moon {
  opacity: 1;
  transform: rotate(0) scale(1);
}

@media (prefers-color-scheme: light) {
  :root[data-theme="system"] .theme-btn .icon-sun {
    opacity: 1;
    transform: rotate(0) scale(1);
  }

  :root[data-theme="system"] .theme-btn .icon-moon {
    opacity: 0;
    transform: rotate(90deg) scale(0);
  }
}

.theme-menu {
  position: absolute;
  right: 0;
  bottom: calc(100% + 0.5rem);
  top: auto;
  min-width: 8.5rem;
  padding: 0.3rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  background: var(--surface);
  box-shadow: 0 8px 24px color-mix(in srgb, #000 18%, transparent);
  z-index: 20;
}

.theme-menu button {
  appearance: none;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  width: 100%;
  padding: 0.45rem 0.55rem;
  border: 0;
  border-radius: 0.35rem;
  background: transparent;
  color: var(--muted);
  font-family: Inter, system-ui, sans-serif;
  font-size: 0.8125rem;
  cursor: pointer;
  text-align: left;
}

.theme-menu button:hover {
  color: var(--text);
  background: color-mix(in srgb, var(--text) 6%, transparent);
}

.theme-menu button[aria-checked="true"] {
  color: var(--text);
  background: color-mix(in srgb, var(--text) 8%, transparent);
}

.theme-menu svg {
  flex-shrink: 0;
}

/* —— Edit mode (?edit=1) —— */
.edit-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 50;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  padding: 0.65rem 1rem;
  border-top: 1px solid var(--border);
  background: var(--surface);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  color: var(--muted);
}

.edit-bar-label {
  color: var(--accent);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.edit-bar-hint {
  flex: 1;
  min-width: 12rem;
}

.edit-bar button {
  appearance: none;
  border: 1px solid var(--border);
  border-radius: 0.35rem;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: inherit;
  padding: 0.35rem 0.55rem;
  cursor: pointer;
}

.edit-bar button:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.edit-style-panel {
  position: fixed;
  right: 1rem;
  bottom: 4.25rem;
  z-index: 51;
  width: min(20rem, calc(100vw - 2rem));
  padding: 0.85rem 1rem 1rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  background: var(--surface);
  box-shadow: 0 12px 40px color-mix(in srgb, #000 45%, transparent);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  color: var(--muted);
}

.edit-style-panel[hidden] {
  display: none !important;
}

.edit-style-panel h3 {
  margin: 0 0 0.65rem;
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.edit-style-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.35rem 0.65rem;
  align-items: center;
  margin-bottom: 0.55rem;
}

.edit-style-row label {
  grid-column: 1 / -1;
  color: var(--text);
}

.edit-style-row input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.edit-style-row output {
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  min-width: 3.2rem;
  text-align: right;
}

.edit-style-panel .edit-style-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.edit-style-panel .edit-style-actions button {
  appearance: none;
  border: 1px solid var(--border);
  border-radius: 0.35rem;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: inherit;
  padding: 0.35rem 0.55rem;
  cursor: pointer;
}

.edit-style-panel .edit-style-actions button:hover {
  border-color: var(--accent);
  color: var(--accent);
}

:root[data-editing="true"] body {
  padding-bottom: 4.5rem;
}

:root[data-editing="true"] [data-content] {
  outline: 1px dashed color-mix(in srgb, var(--accent) 55%, transparent);
  outline-offset: 3px;
  border-radius: 2px;
  cursor: text;
}

:root[data-editing="true"] [data-content]:focus {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

@media (max-width: 480px) {
  .site-header,
  .site-footer,
  main {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .hero {
    padding-top: 3rem;
  }

  .site-nav {
    gap: 0.65rem 0.85rem;
  }

  .site-footer {
    flex-direction: column;
    align-items: stretch;
  }

  .theme-toggle {
    margin-left: auto;
  }
}