/* zenlabsai site styles, in the [untitled] / Rev Music design language.
   Tokens follow ~/.claude/skills/untitled-design-language/references/tokens.css.
   Deviation on purpose: --color-fg-muted is darker in light mode so muted body text
   passes WCAG AA (4.5:1) on both bg and surface. */

@font-face {
  font-family: "Geist";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("/assets/fonts/geist-latin-wght.woff2") format("woff2");
}

@font-face {
  font-family: "Geist Mono";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("/assets/fonts/geist-mono-latin-wght.woff2") format("woff2");
}

:root {
  color-scheme: light dark;

  --color-bg: #ffffff;
  --color-surface: #f2f2f2;
  --color-surface-hover: #ebebeb;
  --color-fg: #111111;
  --color-fg-muted: #666666;
  --color-primary: #111111;
  --color-on-primary: #ffffff;
  --color-accent: #2f6bf6;

  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 999px;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;

  --font-sans: "Geist", "Inter", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "Geist Mono", "JetBrains Mono", ui-monospace, monospace;

  --shadow-art: 0 4px 14px rgb(0 0 0 / 0.16);

  --ease-out: cubic-bezier(0, 0, 0.58, 1);
  --dur-instant: 120ms;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #181818;
    --color-surface: #242424;
    --color-surface-hover: #2e2e2e;
    --color-fg: #f5f5f5;
    --color-fg-muted: #9a9a9a;
    --color-primary: #ffffff;
    --color-on-primary: #111111;
    --color-accent: #4f86ff;
  }
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-fg);
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: inherit;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

a:hover {
  text-decoration-thickness: 2px;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -48px;
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-radius: var(--radius-full);
  font-size: 13px;
  z-index: 1;
}

.skip-link:focus {
  top: var(--space-4);
}

.mono {
  font-family: var(--font-mono);
  font-weight: 400;
}

.muted {
  color: var(--color-fg-muted);
}

/* Layout: one narrow centered column, wide margins. */

.wrap {
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.site-header {
  padding-top: var(--space-6);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.mark {
  display: block;
  flex: none;
}

.mark__bg {
  fill: var(--color-primary);
}

.mark__z {
  fill: var(--color-on-primary);
}

.site-nav ul {
  display: flex;
  gap: var(--space-1);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  display: inline-block;
  padding: 6px var(--space-3);
  border-radius: var(--radius-full);
  background: var(--color-surface);
  font-size: 13px;
  line-height: 18px;
  text-decoration: none;
  transition: background-color var(--dur-instant) var(--ease-out);
}

.site-nav a:hover {
  background: var(--color-surface-hover);
}

main {
  flex: 1;
  padding: var(--space-12) 0 var(--space-12);
}

section + section {
  margin-top: var(--space-12);
}

/* Type */

h1,
h2,
h3 {
  margin: 0;
  font-weight: 600;
  line-height: 1.2;
}

h1 {
  font-size: clamp(30px, 7vw, 40px);
  letter-spacing: -0.02em;
}

h2 {
  font-size: 22px;
  letter-spacing: -0.014em;
}

h3 {
  font-size: 17px;
  letter-spacing: -0.01em;
}

p {
  margin: 0;
}

.eyebrow {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 12px;
  line-height: 16px;
  letter-spacing: 0.02em;
  color: var(--color-fg-muted);
  margin-bottom: var(--space-3);
}

.lede {
  margin-top: var(--space-3);
  font-size: 17px;
  color: var(--color-fg-muted);
}

.section-title {
  margin-bottom: var(--space-4);
}

/* App card: inset surface, the app icon is the only color on the page. */

.app-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-5);
  padding: var(--space-6);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
}

.app-card__icon {
  display: block;
  width: 80px;
  height: 80px;
}

.app-card__meta {
  margin-top: var(--space-1);
  font-size: 12px;
  line-height: 16px;
  color: var(--color-fg-muted);
}

.app-card__body p {
  margin-top: var(--space-3);
}

.app-card__points {
  margin: var(--space-3) 0 0;
  padding-left: 1.1em;
  color: var(--color-fg-muted);
  font-size: 14px;
}

.app-card__actions {
  margin-top: var(--space-5);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* Pill buttons (links styled as the design language's buttons). */

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 var(--space-4);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  line-height: 18px;
  text-decoration: none;
  transition: background-color var(--dur-instant) var(--ease-out);
}

.pill--primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
}

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

.pill--secondary:hover {
  background: var(--color-surface-hover);
}

.pill--surface {
  background: var(--color-surface);
}

.pill--surface:hover {
  background: var(--color-surface-hover);
}

.contact p + p {
  margin-top: var(--space-4);
}

.contact .pill {
  font-family: var(--font-mono);
  font-weight: 500;
  overflow-wrap: anywhere;
}

/* Document pages (privacy policy). */

.doc-header .eyebrow a {
  color: inherit;
}

.doc-meta {
  margin: var(--space-4) 0 0;
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: var(--space-1) var(--space-4);
  font-size: 12px;
  line-height: 18px;
}

.doc-meta dt {
  color: var(--color-fg-muted);
  font-family: var(--font-mono);
  font-weight: 400;
}

.doc-meta dd {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 400;
  overflow-wrap: anywhere;
}

.summary {
  margin-top: var(--space-8);
  padding: var(--space-6);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
}

.summary h2 {
  font-size: 17px;
}

.summary ul {
  margin: var(--space-3) 0 0;
  padding-left: 1.1em;
}

.summary li + li {
  margin-top: var(--space-2);
}

.prose {
  margin-top: var(--space-8);
}

.prose h2 {
  margin-top: var(--space-8);
}

.prose h3 {
  margin-top: var(--space-6);
}

.prose p,
.prose ul {
  margin-top: var(--space-3);
}

.prose ul {
  padding-left: 1.1em;
}

.prose li + li {
  margin-top: var(--space-2);
}

.not-found .app-card__actions {
  margin-top: var(--space-6);
}

/* Footer: plain, muted, no fill. */

.site-footer {
  padding-bottom: var(--space-8);
  font-size: 13px;
  color: var(--color-fg-muted);
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-2) var(--space-4);
}

.site-footer ul {
  display: flex;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Small phones: tighten gutters, stack the app card. */

@media (max-width: 480px) {
  .wrap {
    padding: 0 var(--space-4);
  }

  main {
    padding-top: var(--space-8);
  }

  .app-card {
    grid-template-columns: 1fr;
    gap: var(--space-4);
    padding: var(--space-5);
  }

  .app-card__icon {
    width: 64px;
    height: 64px;
  }

  .summary {
    padding: var(--space-5);
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}