/* Tarahbi Apps studio site - shared styles.
   Design tokens drive everything; light and dark are defined at the token level. */

:root {
  /* Raw brand palette (from the Tuck app). */
  --vault-green: #16794A;
  --sprout-green: #3FBF7E;
  --cream-paper: #FBF8F1;
  --warm-ink: #1A1712;
  --tuck-gold: #8A5714;
  --taupe-fog: #6B6459;
  --deep-pine: #12633D;
  --dark-base: #14120E;
  --dark-text: #F3EEE4;
  --dark-gold: #E0A845;
  --dark-taupe: #A69E8F;

  /* Semantic tokens - light mode defaults. */
  --bg: var(--cream-paper);
  --surface: #FFFFFF;
  --surface-alt: #F4EFE4;
  --text: var(--warm-ink);
  --text-muted: var(--taupe-fog);
  --text-on-green: var(--cream-paper);
  --primary: var(--vault-green);
  --primary-hover: var(--deep-pine);
  --accent-green: var(--sprout-green);
  --gold: var(--tuck-gold);
  --border: #E7E0D2;
  --footer-bg: var(--deep-pine);
  --hero-from: var(--vault-green);
  --hero-to: var(--deep-pine);
  --shadow: 0 1px 2px rgba(26, 23, 18, .06), 0 8px 24px rgba(26, 23, 18, .08);

  /* Type scale - major third (~1.25): 16, 20, 25, 31, 39, 49px. */
  --step-0: 1rem;
  --step-1: 1.25rem;
  --step-2: 1.5625rem;
  --step-3: 1.9375rem;
  --step-4: 2.4375rem;
  --step-5: 3.0625rem;

  --font-display: "Bricolage Grotesque", system-ui, sans-serif;
  --font-body: "Hanken Grotesk", system-ui, sans-serif;

  --maxw: 68rem;
  --maxw-read: 65ch;
  --radius: 16px;
  --radius-sm: 10px;
  --space: clamp(1rem, 4vw, 2rem);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: var(--dark-base);
    --surface: #1E1B15;
    --surface-alt: #241F18;
    --text: var(--dark-text);
    --text-muted: var(--dark-taupe);
    --primary: var(--sprout-green);
    --primary-hover: #63d199;
    --accent-green: var(--sprout-green);
    --gold: var(--dark-gold);
    --border: #322C22;
    --footer-bg: #0E4E30;
    --hero-from: #1B2A22;
    --hero-to: #0B3A24;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 10px 30px rgba(0, 0, 0, .45);
  }

  /* In dark mode --primary flips to light sprout-green, so on-primary text must
     go dark for AA contrast. --text-on-green stays cream for the hero/footer/
     privacy-band, which keep their dark-green backgrounds. */
  .btn-primary,
  .btn-primary:hover,
  .nav-links a[aria-current="page"],
  .skip-link,
  .skip-link:focus {
    color: var(--dark-base);
  }
}

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

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--primary); text-decoration-thickness: .08em; text-underline-offset: .18em; }
a:hover { color: var(--primary-hover); }

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

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0 0 .5em;
}

h1 { font-size: clamp(2.5rem, 6vw, 4.25rem); line-height: 1.02; }
h2 { font-size: var(--step-4); }
h3 { font-size: var(--step-2); }

p { margin: 0 0 1rem; }

.eyebrow {
  font-family: var(--font-body);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: .8125rem;
  color: var(--gold);
  margin: 0 0 .75rem;
}

.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--space); }

.skip-link {
  position: absolute; left: 0; top: -3rem;
  background: var(--primary); color: var(--text-on-green);
  padding: .6rem 1rem; border-radius: 0 0 var(--radius-sm) 0;
  z-index: 100; transition: top .15s ease;
}
.skip-link:focus { top: 0; color: var(--text-on-green); }

/* Navigation */
.site-nav {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--border);
}
.site-nav .container {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; min-height: 4rem; flex-wrap: wrap;
}
.brand {
  font-family: var(--font-display); font-weight: 700; font-size: 1.15rem;
  letter-spacing: -0.02em; color: var(--text); text-decoration: none;
  display: inline-flex; align-items: center; gap: .55rem;
}
.brand img { width: 28px; height: 28px; border-radius: 7px; }
.nav-links { display: flex; gap: .35rem; list-style: none; margin: 0; padding: 0; }
.nav-links a {
  display: inline-block; padding: .45rem .8rem; border-radius: 999px;
  color: var(--text-muted); text-decoration: none; font-weight: 600; font-size: .95rem;
}
.nav-links a:hover { color: var(--text); background: var(--surface-alt); }
.nav-links a[aria-current="page"] {
  color: var(--text-on-green); background: var(--primary);
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--font-body); font-weight: 600; font-size: 1rem;
  padding: .8rem 1.4rem; border-radius: 999px; border: 1px solid transparent;
  text-decoration: none; cursor: pointer; transition: transform .12s ease, background .15s ease;
}
.btn-primary { background: var(--primary); color: var(--text-on-green); }
.btn-primary:hover { background: var(--primary-hover); color: var(--text-on-green); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--primary); border-color: var(--border); }
.btn-ghost:hover { background: var(--surface-alt); color: var(--primary); }

.badge-soon {
  display: inline-flex; align-items: center; gap: .5rem;
  font-weight: 600; font-size: .95rem; padding: .8rem 1.4rem;
  border-radius: 999px; border: 1px dashed var(--gold);
  color: var(--gold); background: color-mix(in srgb, var(--gold) 10%, transparent);
  cursor: default;
}
.badge-soon::before { content: ""; width: .55rem; height: .55rem; border-radius: 50%; background: var(--gold); }

/* Sections */
section { padding-block: clamp(3rem, 8vw, 5.5rem); }
.section-tight { padding-block: clamp(2rem, 5vw, 3rem); }
.lead { font-size: var(--step-1); color: var(--text-muted); max-width: 46ch; }

/* Home hero */
.hero {
  background: linear-gradient(160deg, var(--hero-from) 0%, var(--hero-to) 100%);
  color: var(--text-on-green);
  padding-block: clamp(4rem, 12vw, 8rem);
}
.hero h1 { color: var(--text-on-green); max-width: 15ch; }
.hero .lead { color: color-mix(in srgb, var(--cream-paper) 88%, transparent); max-width: 52ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.75rem; }
.hero .btn-ghost { color: var(--cream-paper); border-color: color-mix(in srgb, var(--cream-paper) 45%, transparent); }
.hero .btn-ghost:hover { background: color-mix(in srgb, var(--cream-paper) 14%, transparent); color: var(--cream-paper); }

/* Studio blurb */
.blurb { max-width: 60ch; font-size: var(--step-1); }

/* Tuck showcase card (home) */
.showcase {
  display: grid; gap: 1.75rem; align-items: center;
  grid-template-columns: 1fr; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: clamp(1.5rem, 5vw, 2.75rem); box-shadow: var(--shadow);
}
.showcase-icon { width: 84px; height: 84px; border-radius: 20px; box-shadow: var(--shadow); }
.showcase h2 { font-size: var(--step-2); margin-bottom: .35rem; }
.showcase .tagline { color: var(--text-muted); margin-bottom: 1.25rem; max-width: 42ch; }

/* More coming strip */
.more-coming {
  border: 1px dashed var(--border); border-radius: var(--radius);
  background: var(--surface-alt); padding: clamp(1.5rem, 5vw, 2.5rem);
  text-align: center; color: var(--text-muted); max-width: 52ch;
  margin-inline: auto;
}
.more-coming p { margin: 0; }

/* Tuck hero (banner) */
.tuck-hero {
  background: linear-gradient(160deg, var(--vault-green) 0%, var(--deep-pine) 100%);
  color: var(--text-on-green);
}
.tuck-hero .container { display: grid; gap: 2rem; align-items: center; }
.tuck-hero-head { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; }
.tuck-hero-head img { width: 64px; height: 64px; border-radius: 16px; box-shadow: var(--shadow); }
.tuck-hero h1 { color: var(--text-on-green); font-size: clamp(2.25rem, 5vw, 3.5rem); }
.tuck-hero .lead { color: color-mix(in srgb, var(--cream-paper) 90%, transparent); max-width: 54ch; }
.tuck-banner {
  width: 100%; border-radius: var(--radius); box-shadow: var(--shadow);
  border: 1px solid color-mix(in srgb, var(--cream-paper) 25%, transparent);
}

/* Feature grid */
.feature-grid {
  display: grid; grid-template-columns: 1fr; gap: 1rem; margin-top: 2rem;
  list-style: none; padding: 0;
}
.feature-grid li {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 1.1rem 1.25rem;
  position: relative; padding-left: 2.6rem;
}
.feature-grid li::before {
  content: ""; position: absolute; left: 1.1rem; top: 1.4rem;
  width: .7rem; height: .7rem; border-radius: 3px;
  background: var(--accent-green);
}

/* Screenshot gallery - scroll row on mobile, grid on wide. */
.gallery {
  display: flex; gap: 1rem; overflow-x: auto; padding-bottom: 1rem;
  scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch;
}
.gallery img {
  flex: 0 0 auto; width: min(62vw, 240px); border-radius: var(--radius);
  border: 1px solid var(--border); box-shadow: var(--shadow); scroll-snap-align: start;
}
@media (min-width: 48rem) {
  .gallery {
    display: grid; grid-template-columns: repeat(3, 1fr);
    overflow-x: visible; gap: 1.25rem;
  }
  .gallery img { width: 100%; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .tuck-hero .container { grid-template-columns: 1.05fr .95fr; }
  .showcase { grid-template-columns: auto 1fr; }
}

/* Privacy highlight band */
.privacy-band {
  background: var(--deep-pine); color: var(--text-on-green);
  border-radius: var(--radius); padding: clamp(1.75rem, 5vw, 3rem);
  text-align: center;
}
.privacy-band h2 { color: var(--text-on-green); }
.privacy-band p { max-width: 52ch; margin-inline: auto; color: color-mix(in srgb, var(--cream-paper) 90%, transparent); }
.privacy-band a { color: var(--cream-paper); }

.cta-center { text-align: center; }

/* Reading column (privacy) */
.reading { max-width: var(--maxw-read); }
.reading h1 { font-size: clamp(2rem, 5vw, 3rem); }
.reading .updated { color: var(--text-muted); font-size: .95rem; margin-bottom: 2.5rem; }
.reading h2 { font-size: var(--step-2); margin-top: 2.5rem; }

/* Footer */
.site-footer {
  background: var(--footer-bg); color: var(--cream-paper);
  padding-block: clamp(2.5rem, 6vw, 4rem); margin-top: 2rem;
}
.site-footer p { color: color-mix(in srgb, var(--cream-paper) 85%, transparent); max-width: 60ch; }
.site-footer a { color: var(--cream-paper); font-weight: 600; }
.site-footer .foot-brand {
  font-family: var(--font-display); font-weight: 700; font-size: 1.15rem;
  color: var(--cream-paper); margin-bottom: .5rem;
}

/* 404 */
.notfound { text-align: center; padding-block: clamp(4rem, 12vw, 8rem); }
.notfound h1 { font-size: clamp(3rem, 10vw, 5rem); }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
  .btn:hover { transform: none; }
}