:root {
  color-scheme: light dark;

  --bg: #f5f5f7;
  --bg-secondary: rgba(255, 255, 255, 0.72);
  --surface: rgba(255, 255, 255, 0.68);
  --surface-strong: rgba(255, 255, 255, 0.88);
  --text-primary: #1d1d1f;
  --text-secondary: #6e6e73;
  --hairline: rgba(0, 0, 0, 0.08);
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
  --accent: #0071e3;
  --accent-hover: #0077ed;
  --chip-bg: rgba(0, 113, 227, 0.08);
  --max-width: 1120px;
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --blur: 24px;
}

html[data-theme="dark"] {
  --bg: #000000;
  --bg-secondary: rgba(28, 28, 30, 0.72);
  --surface: rgba(28, 28, 30, 0.72);
  --surface-strong: rgba(36, 36, 38, 0.9);
  --text-primary: #f5f5f7;
  --text-secondary: #a1a1a6;
  --hairline: rgba(255, 255, 255, 0.08);
  --shadow: 0 18px 48px rgba(0, 0, 0, 0.35);
  --chip-bg: rgba(10, 132, 255, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "SF Pro Text",
    "SF Pro Display",
    "Helvetica Neue",
    Helvetica,
    Arial,
    sans-serif;
  background:
    radial-gradient(circle at top, rgba(0, 113, 227, 0.08), transparent 35%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg) 100%);
  color: var(--text-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.container {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
}

.page-shell {
  min-height: 100vh;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: saturate(180%) blur(var(--blur));
  -webkit-backdrop-filter: saturate(180%) blur(var(--blur));
  background: color-mix(in srgb, var(--bg-secondary) 78%, transparent);
  border-bottom: 1px solid var(--hairline);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
}

.brand-name {
  font-size: 1rem;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.segmented-control {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--hairline);
  box-shadow: var(--shadow);
  backdrop-filter: saturate(180%) blur(var(--blur));
  -webkit-backdrop-filter: saturate(180%) blur(var(--blur));
}

.segment-button {
  border: 0;
  background: transparent;
  color: var(--text-secondary);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 500;
  padding: 10px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition:
    background-color 0.2s ease,
    color 0.2s ease,
    transform 0.2s ease;
}

.segment-button:hover {
  color: var(--text-primary);
}

.segment-button.is-active {
  background: var(--surface-strong);
  color: var(--text-primary);
}

.segment-button.is-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.hero-section {
  padding: 48px 0 24px;
}

.hero-card {
  padding: 40px;
}

.apple-card {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  backdrop-filter: saturate(180%) blur(var(--blur));
  -webkit-backdrop-filter: saturate(180%) blur(var(--blur));
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.hero-title {
  margin: 0;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  line-height: 0.96;
  letter-spacing: -0.045em;
  font-weight: 700;
  max-width: 12ch;
}

.hero-text {
  margin: 20px 0 0;
  max-width: 700px;
  font-size: clamp(1.05rem, 2.2vw, 1.35rem);
  line-height: 1.5;
  color: var(--text-secondary);
  letter-spacing: -0.02em;
}

.hero-meta {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.meta-chip {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 14px;
  border-radius: 999px;
  background: var(--chip-bg);
  border: 1px solid var(--hairline);
  font-size: 0.92rem;
  color: var(--text-primary);
}

.content-section {
  padding: 8px 0 48px;
}

.policy-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.policy-nav {
  position: sticky;
  top: 96px;
  padding: 20px;
}

.policy-nav-title {
  margin: 0 0 16px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.policy-nav a {
  display: block;
  padding: 10px 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

.policy-nav a:hover {
  color: var(--text-primary);
}

.policy-content {
  display: grid;
  gap: 18px;
}

.content-card {
  padding: 28px;
}

.content-card h2 {
  margin: 0 0 14px;
  font-size: clamp(1.4rem, 2.2vw, 1.8rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.content-card p,
.content-card li {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  letter-spacing: -0.01em;
}

.content-card p:last-child,
.content-card ul:last-child {
  margin-bottom: 0;
}

.content-card ul {
  margin: 12px 0 0 20px;
  padding: 0;
}

.site-footer {
  padding: 24px 0 48px;
}

.footer-inner {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.redirect-page {
  display: grid;
  place-items: center;
  padding: 24px;
}

.redirect-shell {
  width: min(100%, 680px);
}

.redirect-card {
  padding: 36px;
  text-align: center;
}

.noscript-links {
  margin-top: 24px;
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 600;
  transition:
    transform 0.2s ease,
    opacity 0.2s ease,
    background-color 0.2s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--accent);
  color: #ffffff;
}

.button-primary:hover {
  background: var(--accent-hover);
}

.button-secondary {
  background: var(--surface-strong);
  border: 1px solid var(--hairline);
}

@media (max-width: 900px) {
  .policy-layout {
    grid-template-columns: 1fr;
  }

  .policy-nav {
    position: static;
  }
}

@media (max-width: 720px) {
  .header-inner {
    padding: 12px 0;
    align-items: flex-start;
    flex-direction: column;
  }

  .header-controls {
    width: 100%;
    justify-content: flex-start;
  }

  .hero-card,
  .content-card,
  .policy-nav {
    padding: 22px;
  }

  .hero-section {
    padding-top: 28px;
  }
}

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

a:hover {
  text-decoration: underline;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  * {
    transition: none !important;
  }
}