:root {
  color-scheme: dark;
  --bg: #08131f;
  --bg-2: #162d4a;
  --panel: rgba(9, 19, 32, 0.96);
  --panel-2: rgba(255,255,255,0.06);
  --text: #f7f8fc;
  --muted: #95a7c3;
  --accent: #ff7b54;
  --accent-2: #5bd3ff;
  --accent-3: #9b8cff;
  --border: rgba(255,255,255,0.1);
}

body.light {
  color-scheme: light;
  --bg: #f6f7fb;
  --bg-2: #e7ecf7;
  --panel: #ffffff;
  --panel-2: #f2f5ff;
  --text: #17233a;
  --muted: #5b6b7d;
  --accent: #ff6a3d;
  --accent-2: #1f8ff0;
  --accent-3: #6f56f4;
  --border: rgba(23, 35, 58, 0.11);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: linear-gradient(140deg, var(--bg) 0%, var(--bg-2) 100%);
  color: var(--text);
  line-height: 1.6;
}
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

.nav, .hero-grid, .content-wrap, .footer {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
}
.hero { padding: 24px 0 70px; }
.nav { display: flex; justify-content: space-between; align-items: center; padding: 12px 0 26px; gap: 16px; flex-wrap: wrap; }
.brand { font-weight: 800; font-size: 1.24rem; color: var(--text); }
.nav-links { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.theme-toggle { background: var(--panel-2); color: var(--text); border: 1px solid var(--border); }
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 30px; align-items: center; padding-top: 20px; }
.eyebrow { text-transform: uppercase; letter-spacing: .24em; color: var(--accent-3); font-size: .78rem; }
h1 { font-size: clamp(2rem, 3.2vw, 3.2rem); line-height: 1.1; margin: 8px 0 12px; }
.lead { font-size: 1.02rem; color: var(--muted); max-width: 680px; }
.cta-row { display: flex; gap: 12px; margin-top: 20px; flex-wrap: wrap; }
button, .ghost-link { border: 0; border-radius: 999px; padding: 12px 16px; font-weight: 700; cursor: pointer; }
button { background: linear-gradient(135deg, var(--accent), #ffb36b); color: white; }
.ghost-link { background: var(--panel-2); color: var(--text); display: inline-block; border: 1px solid var(--border); }
.badge-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 24px; }
.badge-row span { border: 1px solid var(--border); padding: 8px 12px; border-radius: 999px; color: var(--muted); }
.panel-card, .content-page, .info-box, .inbox-shell { background: var(--panel); border: 1px solid var(--border); box-shadow: 0 18px 45px rgba(0,0,0,.16); border-radius: 24px; padding: 24px; }
.email-box { display: flex; gap: 12px; align-items: center; justify-content: space-between; background: var(--panel-2); padding: 12px 14px; border-radius: 14px; margin-top: 10px; border: 1px solid var(--border); }
.muted { color: var(--muted); }
.pill { display: inline-block; margin-top: 14px; padding: 8px 12px; background: rgba(91,211,255,.16); color: var(--accent-2); border-radius: 999px; }
.inbox-shell { margin-top: 26px; display: grid; grid-template-columns: 300px 1fr; gap: 18px; padding: 0; overflow: hidden; }
.inbox-list { border-right: 1px solid var(--border); padding-right: 12px; }
.inbox-item { padding: 12px; border-radius: 14px; cursor: pointer; border: 1px solid transparent; margin-bottom: 10px; background: transparent; }
.inbox-item.active { background: var(--panel-2); border-color: var(--border); }
.inbox-item strong { display: block; margin-bottom: 4px; }
.inbox-item small { color: var(--muted); display: block; }
.message-preview { min-height: 280px; }
.preview-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 12px; }
.preview-meta { color: var(--muted); font-size: .95rem; }
.preview-empty { color: var(--muted); padding: 40px 0; }
.feature-stack { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 24px; }
.feature-stack article { background: var(--panel-2); border: 1px solid var(--border); border-radius: 18px; padding: 20px; }
.info-box { margin-top: 24px; }
.footer { padding: 32px 0 44px; color: var(--muted); font-size: .95rem; }
.footer-links { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 8px; }
.page-header { padding: 24px 0 0; }
.content-page { margin: 24px auto 36px; }
.cookie-banner { position: fixed; bottom: 16px; left: 50%; transform: translateX(-50%); background: var(--panel); color: var(--text); padding: 12px 16px; border-radius: 999px; display: flex; gap: 12px; align-items: center; z-index: 1000; border: 1px solid var(--border); }
.cookie-banner.is-hidden { display: none; }

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .feature-stack { grid-template-columns: 1fr; }
  .inbox-shell { grid-template-columns: 1fr; }
  .inbox-list { border-right: 0; border-bottom: 1px solid var(--border); padding-right: 0; padding-bottom: 12px; }
}