/* shared.css — design tokens + nav + footer + base typography
   used across index.html + privacy-approach.html + terms.html +
   pricing.html + contact.html + about.html. Keeps the multi-page
   site visually consistent without a build step. */

:root {
  --ink: #1A1A1A;
  --ink-soft: #4A4A4A;
  --ink-faint: #888;
  --bg: #FAFAFA;
  --bg-pure: #FFFFFF;
  --bg-elevated: #F4F4F4;
  --bg-deep: #0E0E10;
  --accent: #6D28D9;
  --accent-hover: #5B21B6;
  --accent-soft: #F3EBFE;
  --accent-strong: #5B21B6;
  --hairline: #E5E5E5;
  --hairline-soft: #EFEFEF;
  --success: #28C840;
  --danger: #FF3B30;
  --border: var(--hairline);
  --text: var(--ink);
  --text-secondary: var(--ink-soft);
  --text-tertiary: var(--ink-faint);
  --text-faint: var(--ink-faint);
  --shadow-card: 0 12px 32px rgba(0,0,0,0.04), 0 2px 4px rgba(0,0,0,0.02);
}

:root[data-theme="dark"] {
  --ink: #F5F5F7;
  --ink-soft: #C7C7CC;
  --ink-faint: #8E8E93;
  --bg: #000000;
  --bg-pure: #1C1C1E;
  --bg-elevated: #2C2C2E;
  --bg-deep: #000000;
  --accent: #8B5CF6;
  --accent-hover: #A78BFA;
  --accent-soft: #3D1F8F;
  --accent-strong: #A78BFA;
  --hairline: #38383A;
  --hairline-soft: #2C2C2E;
  --shadow-card: 0 12px 40px rgba(0,0,0,0.5);
}

* { box-sizing: border-box; }

html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
  margin: 0;
  font-family: 'Geist', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: -0.011em;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}
.container--narrow { max-width: 720px; }

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

h1, h2, h3, h4 {
  margin: 0;
  letter-spacing: -0.022em;
  color: var(--ink);
}
h1 { font-size: 48px; font-weight: 600; line-height: 1.05; }
h2 { font-size: 32px; font-weight: 600; line-height: 1.15; }
h3 { font-size: 22px; font-weight: 600; line-height: 1.25; }
.serif { font-family: 'Newsreader', Georgia, serif; font-style: italic; font-weight: 500; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 12px;
  color: var(--accent);
  font-weight: 500;
  margin: 0 0 12px 0;
}

p { color: var(--ink-soft); margin: 0 0 16px 0; }
p:last-child { margin-bottom: 0; }

/* ─── NAV ─── */
.nav {
  position: sticky;
  top: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--hairline-soft);
  z-index: 100;
  padding: 14px 0;
}
.nav__inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 16px;
  color: var(--ink);
  text-decoration: none;
}
.brand__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}
.brand__ver { font-size: 12px; color: var(--ink-faint); font-weight: 400; }
.nav__links {
  display: flex;
  gap: 28px;
  align-items: center;
  font-size: 14px;
}
.nav__links a {
  color: var(--ink-soft);
  font-weight: 500;
}
.nav__links a:hover { color: var(--ink); }
.nav__links a[aria-current="page"] { color: var(--ink); font-weight: 600; }
.nav__actions { display: flex; gap: 12px; align-items: center; }
.nav__signin { font-size: 14px; color: var(--ink-soft); font-weight: 500; }
.nav__signin:hover { color: var(--ink); }

.theme-toggle {
  background: transparent;
  border: 1px solid var(--hairline);
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--ink-soft);
}
.theme-toggle:hover { color: var(--ink); border-color: var(--ink-soft); }
.theme-toggle svg { width: 16px; height: 16px; }
:root[data-theme="dark"] .icon-sun { display: none; }
:root:not([data-theme="dark"]) .icon-moon { display: none; }

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s ease;
  text-decoration: none;
}
.btn--primary {
  background: var(--accent);
  color: white;
}
.btn--primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  color: white;
}
.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--hairline);
}
.btn--ghost:hover {
  background: var(--bg-elevated);
  border-color: var(--ink-soft);
}

/* ─── PAGE LAYOUT ─── */
.page {
  padding: 64px 0 96px;
  min-height: 70vh;
}
.page__header { margin-bottom: 48px; }
.page__title { margin-bottom: 8px; }
.page__subtitle { font-size: 18px; color: var(--ink-soft); max-width: 56ch; }

/* ─── CONTENT TYPOGRAPHY ─── */
.prose {
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
}
.prose h2 {
  font-size: 24px;
  margin: 40px 0 16px 0;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--hairline);
}
.prose h3 {
  font-size: 18px;
  margin: 28px 0 12px 0;
}
.prose p { margin: 0 0 16px 0; color: var(--ink-soft); }
.prose ul, .prose ol { color: var(--ink-soft); margin: 0 0 16px 0; padding-left: 20px; }
.prose li { margin-bottom: 6px; }
.prose strong { color: var(--ink); font-weight: 600; }
.prose code {
  background: var(--bg-elevated);
  padding: 1px 6px;
  border-radius: 4px;
  font-family: 'SF Mono', Consolas, monospace;
  font-size: 13px;
  color: var(--ink);
}
.prose blockquote {
  border-left: 3px solid var(--accent);
  padding: 4px 0 4px 16px;
  margin: 16px 0;
  color: var(--ink-soft);
  font-style: italic;
}

/* ─── FOOTER ─── */
.footer {
  padding: 48px 0 32px;
  border-top: 1px solid var(--hairline-soft);
  background: var(--bg-elevated);
  margin-top: 96px;
}
.footer__inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.footer__left { display: flex; align-items: center; gap: 12px; font-size: 12px; color: var(--ink-faint); }
.footer__ver { color: var(--ink-faint); }
.footer__links {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  font-size: 13px;
}
.footer__links a { color: var(--ink-soft); }
.footer__links a:hover { color: var(--ink); }

/* ─── PRICING TABLE ─── */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin: 32px 0;
}
.pricing-card {
  background: var(--bg-pure);
  border: 1px solid var(--hairline);
  border-radius: 16px;
  padding: 32px;
  box-shadow: var(--shadow-card);
}
.pricing-card--featured {
  border-color: var(--accent);
  background: var(--accent-soft);
  position: relative;
}
.pricing-card__name {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 8px;
}
.pricing-card__price {
  font-size: 36px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
  color: var(--ink);
}
.pricing-card__price-suffix { font-size: 14px; color: var(--ink-soft); font-weight: 400; }
.pricing-card__limit {
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 16px;
}
.pricing-card__feats {
  list-style: none;
  padding: 0;
  margin: 0 0 24px 0;
  font-size: 14px;
  color: var(--ink-soft);
}
.pricing-card__feats li { margin-bottom: 8px; padding-left: 20px; position: relative; }
.pricing-card__feats li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 600;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}