/* ScreenTether website: midnight + aurora. System fonts only (no third-party requests, GDPR). */
:root {
  --bg: #0E1322; --bg2: #141A2E; --card: #1A2238; --line: rgba(255,255,255,.08);
  --text: #E6EEFF; --muted: #A9B4CF; --cyan: #22D3EE; --violet: #A78BFA;
  --grad: linear-gradient(90deg, var(--cyan), var(--violet));
  --r-s: 8px; --r-m: 16px; --r-l: 28px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: radial-gradient(1200px 600px at 80% -10%, rgba(167,139,250,.18), transparent 60%),
  radial-gradient(900px 500px at -10% 20%, rgba(34,211,238,.12), transparent 60%), var(--bg);
  color: var(--text); font: 17px/1.6 "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, Roboto, sans-serif; }
a { color: inherit; }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3 { line-height: 1.12; letter-spacing: -.02em; margin: 0 0 16px; }
h1 { font-size: clamp(36px, 4vw, 52px); font-weight: 800; }
h2 { font-size: clamp(30px, 4vw, 44px); font-weight: 800; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.eyebrow { color: var(--cyan); font-weight: 700; letter-spacing: .08em; text-transform: uppercase; font-size: 13px; margin: 0 0 12px; }
.lead { font-size: 19px; color: var(--muted); max-width: 580px; }
.center { margin-left: auto; margin-right: auto; text-align: center; }
section { width: min(1180px, 100% - 48px); margin: 0 auto; }

/* Header */
.top { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 28px; padding: 14px max(24px, calc((100% - 1180px) / 2));
  background: rgba(14,19,34,.72); backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-size: 20px; }
.brand b { font-weight: 800; } .brand span { font-weight: 500; }
.top nav { display: flex; gap: 22px; margin-left: auto; font-size: 15px; }
.top nav a { text-decoration: none; color: var(--muted); } .top nav a:hover { color: var(--text); }
.btn { display: inline-flex; align-items: center; gap: 8px; border-radius: 999px; padding: 12px 22px; font-weight: 700; text-decoration: none;
  background: var(--grad); color: #10152A; }
.btn.small { padding: 8px 16px; font-size: 14px; }

/* Hero */
.hero { display: grid; grid-template-columns: 1fr 1.25fr; gap: 48px; align-items: center; padding: 72px 0 56px; }
.ctas { display: flex; gap: 12px; flex-wrap: wrap; margin: 28px 0 14px; }
.store { display: inline-flex; align-items: center; gap: 12px; padding: 10px 18px; border-radius: 14px; background: #0B0F1C; border: 1px solid var(--line); cursor: default; }
.store span { display: flex; flex-direction: column; line-height: 1.2; font-weight: 700; } .store small { font-weight: 400; font-size: 11px; color: var(--muted); }
.fine { color: var(--muted); font-size: 14px; }
.hero-visual { position: relative; padding: 0 0 70px 40px; }
.pc-frame { border-radius: 14px; overflow: hidden; border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 30px 80px rgba(0,0,0,.55), 0 0 0 6px rgba(167,139,250,.06), 0 0 80px rgba(124,108,242,.25); }
.phone-frame { margin: 0; border-radius: 34px; padding: 8px; background: #05070D; border: 1px solid rgba(255,255,255,.14);
  box-shadow: 0 24px 60px rgba(0,0,0,.6); }
.phone-frame img { border-radius: 27px; background: #111; }
.hero-phone { position: absolute; left: -34px; bottom: -6px; width: 24%; }
.tether { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; z-index: -1; }
.tether path { stroke-dasharray: 700; stroke-dashoffset: 700; animation: draw 2.2s .4s ease-out forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }

/* Facts */
.facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; padding: 24px 0 40px; }
.facts div { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-m); padding: 22px; display: flex; flex-direction: column; gap: 6px; }
.facts b { font-size: 18px; } .facts span { color: var(--muted); font-size: 15px; }

/* Feature rows */
.feature { display: grid; grid-template-columns: 1fr 1.5fr; gap: 56px; align-items: center; padding: 64px 0; }
.feature.flip .copy { order: 2; }
.feature .copy p:not(.eyebrow) { color: var(--muted); }

/* Phone app */
.phone-app { padding: 72px 0; text-align: center; }
.phones { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 40px; }
.phones figcaption { margin-top: 14px; color: var(--muted); font-size: 14px; }

/* Pricing */
.pricing { padding: 72px 0; text-align: center; }
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; max-width: 860px; margin: 32px auto 0; text-align: left; }
.plan { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-l); padding: 30px; }
.plan.pro { background: linear-gradient(var(--card), var(--card)) padding-box, var(--grad) border-box; border: 2px solid transparent; }
.plan h3 { font-size: 26px; margin-bottom: 4px; } .price { color: var(--muted); margin: 0 0 16px; }
.plan ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.plan li::before { content: ""; display: inline-block; width: 16px; height: 9px; border-left: 3px solid var(--cyan); border-bottom: 3px solid var(--cyan);
  transform: rotate(-45deg) translateY(-3px); margin-right: 12px; }
.note { margin: 18px 0 0; color: var(--cyan); font-weight: 600; }

/* FAQ */
.faq { padding: 64px 0 80px; max-width: 820px; }
.faq details { border-bottom: 1px solid var(--line); padding: 18px 4px; }
.faq summary { cursor: pointer; font-weight: 700; font-size: 18px; list-style: none; }
.faq summary::after { content: "+"; float: right; color: var(--cyan); font-size: 22px; line-height: 1; }
.faq details[open] summary::after { content: "−"; }
.faq p { color: var(--muted); margin: 10px 0 0; }

/* Footer */
.foot { border-top: 1px solid var(--line); padding: 36px max(24px, calc((100% - 1180px) / 2)); color: var(--muted); font-size: 14px; }
.foot .brand { color: var(--text); font-size: 17px; margin-bottom: 10px; }

@media (prefers-reduced-motion: reduce) { .tether path { animation: none; stroke-dashoffset: 0; } }

/* Small screens */
@media (max-width: 900px) {
  .top nav { display: none; }
  .hero, .feature { grid-template-columns: 1fr; }
  .feature.flip .copy { order: 0; }
  .hero-visual { padding-left: 0; }
  .facts, .plans { grid-template-columns: 1fr; }
  .phones { grid-template-columns: repeat(2, 1fr); }
}

/* Legal pages (Impressum, Datenschutz, open-source) */
.legal { width: min(760px, 100% - 48px); margin: 48px auto 80px; }
.legal h1 { font-size: clamp(32px, 4vw, 44px); }
.legal h2 { font-size: 21px; margin: 32px 0 8px; }
.legal p, .legal li { color: var(--muted); } .legal strong, .legal b { color: var(--text); }
.legal a { color: var(--cyan); }
.legal ul { padding-left: 20px; } .legal li { margin-bottom: 8px; }
.legal table { width: 100%; border-collapse: collapse; font-size: 15px; } .legal td, .legal th { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
.legal th { color: var(--text); } .legal td { color: var(--muted); } .legal code { color: var(--text); font-size: 13px; word-break: break-all; }