/* ============================================================
   API Drop – Landingpage
   Konzept: "Ruhige Sicherheit / Vault-Kalmness"
   Keine Webfonts, keine CDNs (DSGVO). System-Stacks only.
   ============================================================ */

:root {
  --ink: #22343a;
  --ink-soft: #3a5259;
  --paper: #edf3f4;
  --card: #ffffff;
  --accent: #38545c;
  --accent-2: #45666f;
  --safe: #3f8f79;
  --safe-tint: #e4f1ec;
  --danger: #b4553f;
  --danger-tint: #f6e7e2;
  --border: #d5e2e5;
  --muted: #6b7d84;

  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --maxw: 1120px;
  --radius: 14px;
  --radius-sm: 9px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.mono { font-family: var(--mono); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: 760px; }

a { color: inherit; }

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink); color: var(--paper);
  padding: 10px 16px; border-radius: 0 0 8px 0; z-index: 100;
}
.skip:focus { left: 0; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 15px;
  padding: 11px 20px; border-radius: 999px;
  text-decoration: none; cursor: pointer; border: 1.5px solid transparent;
  transition: background .18s ease, color .18s ease, border-color .18s ease, transform .12s ease;
}
.btn:active { transform: translateY(1px); }
.btn-lg { padding: 14px 26px; font-size: 16px; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-2); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-star { background: var(--ink); color: var(--paper); padding: 9px 16px; font-size: 14px; }
.btn-star:hover { background: var(--ink-soft); }

:focus-visible { outline: 3px solid var(--accent-2); outline-offset: 2px; border-radius: 4px; }

/* ---- Header ---- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; }
.brand-mark { height: 30px; width: auto; color: var(--ink); }
.brand-word { font-weight: 800; font-size: 18px; letter-spacing: -0.3px; }
.site-nav { display: flex; align-items: center; gap: 24px; }
.site-nav a:not(.btn) { text-decoration: none; font-size: 15px; color: var(--ink-soft); font-weight: 600; }
.site-nav a:not(.btn):hover { color: var(--accent); }

/* ---- Hero ---- */
.hero { padding: 72px 0 40px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 54px; align-items: center; }
.kicker { color: var(--accent); font-size: 13px; font-weight: 600; letter-spacing: 0.5px; margin-bottom: 16px; }
.hero h1 { font-size: clamp(34px, 5vw, 56px); line-height: 1.04; letter-spacing: -1.5px; font-weight: 800; }
.lede { font-size: 18px; color: var(--ink-soft); margin: 20px 0 28px; max-width: 46ch; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }

/* Signature: die Verwandlung */
.transform {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px;
  box-shadow: 0 24px 60px -30px rgba(34,52,58,0.4);
}
.transform-row {
  display: grid; grid-template-columns: 1fr auto; grid-template-areas: "tag state" "key key";
  gap: 8px 10px; align-items: center;
  padding: 16px; border-radius: var(--radius-sm); border: 1px solid var(--border);
}
.transform-row.is-danger { background: var(--danger-tint); border-color: color-mix(in srgb, var(--danger) 30%, var(--border)); }
.transform-row.is-safe { background: var(--safe-tint); border-color: color-mix(in srgb, var(--safe) 30%, var(--border)); }
.transform .tag { grid-area: tag; font-size: 12px; color: var(--muted); }
.transform .state { grid-area: state; justify-self: end; font-size: 12px; font-weight: 700; display: inline-flex; align-items: center; gap: 5px; }
.state-danger { color: var(--danger); }
.state-safe { color: var(--safe); }
.keyline {
  grid-area: key; font-size: 13.5px; word-break: break-all; line-height: 1.5;
  color: var(--ink);
}
.keyline .redact { background: var(--ink); color: transparent; border-radius: 3px; padding: 0 2px; user-select: none; }
.transform-arrow { display: flex; justify-content: center; color: var(--accent-2); padding: 10px 0; }

/* Terminal */
.terminal {
  margin-top: 40px; background: var(--ink); border-radius: var(--radius);
  overflow: hidden; box-shadow: 0 24px 50px -28px rgba(34,52,58,0.55);
}
.terminal-bar { display: flex; align-items: center; gap: 7px; padding: 12px 16px; background: rgba(255,255,255,0.05); }
.tdot { width: 11px; height: 11px; border-radius: 50%; background: rgba(255,255,255,0.28); }
.tlabel { margin-left: 8px; font-size: 12px; color: rgba(237,243,244,0.6); }
.terminal-body { position: relative; padding: 20px 18px; color: var(--paper); font-size: 14.5px; }
.tline { white-space: pre-wrap; word-break: break-word; }
.tline .prompt { color: var(--safe); margin-right: 8px; }
.tline.muted { color: rgba(237,243,244,0.5); margin-top: 8px; font-size: 13px; }
.caret { display: inline-block; width: 8px; height: 1.1em; background: var(--paper); vertical-align: -2px; margin-left: 2px; animation: blink 1.1s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }
.copy-btn {
  position: absolute; top: 14px; right: 14px;
  background: rgba(237,243,244,0.1); color: var(--paper);
  border: 1px solid rgba(237,243,244,0.2); border-radius: 7px;
  font-family: var(--mono); font-size: 12px; padding: 5px 10px; cursor: pointer;
  transition: background .15s ease;
}
.copy-btn:hover { background: rgba(237,243,244,0.2); }
.copy-btn.copied { background: var(--safe); border-color: var(--safe); color: #fff; }

/* ---- Stats ---- */
.stats { padding: 20px 0 8px; }
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.stat { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px 24px; }
.stat-num { font-size: 40px; font-weight: 800; letter-spacing: -1px; color: var(--ink); line-height: 1; display: inline; }
.stat-unit { display: inline; font-size: 20px; font-weight: 800; color: var(--accent); margin-left: 6px; }
.stat-desc { margin-top: 12px; color: var(--ink-soft); font-size: 15px; }
.stat-src { margin-top: 10px; font-size: 12px; color: var(--muted); }

/* ---- Sections ---- */
.section { padding: 84px 0; }
.section-ink { background: var(--ink); color: var(--paper); }
.section-ink .eyebrow { color: color-mix(in srgb, var(--safe) 75%, var(--paper)); }
.section h2 { font-size: clamp(26px, 3.4vw, 38px); letter-spacing: -0.8px; line-height: 1.1; margin-bottom: 10px; }
.eyebrow { font-size: 13px; color: var(--accent); font-weight: 600; margin-bottom: 14px; letter-spacing: 0.3px; }
.eyebrow .idx { opacity: 0.5; margin-right: 10px; }

.two-col { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; margin-top: 26px; }
.col-lede { font-size: 18px; color: inherit; }
.section .col-lede, .section p { color: var(--ink-soft); }
.section-ink p { color: color-mix(in srgb, var(--paper) 82%, transparent); }

/* Steps */
.steps { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin: 34px 0 26px; }
.step { background: rgba(237,243,244,0.06); border: 1px solid rgba(237,243,244,0.14); border-radius: var(--radius); padding: 26px 22px; }
.step-n { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; border-radius: 9px; background: var(--safe); color: #fff; font-weight: 800; margin-bottom: 16px; }
.step h3 { font-size: 19px; margin-bottom: 8px; }
.inline-code {
  display: block; background: rgba(0,0,0,0.28); border: 1px solid rgba(237,243,244,0.16);
  border-radius: 8px; padding: 10px 12px; font-size: 13.5px; margin: 10px 0;
  color: var(--paper); word-break: break-all;
}
.small { font-size: 13.5px; opacity: 0.75; }
.convention {
  margin-top: 14px; padding: 16px 18px; border-left: 3px solid var(--safe);
  background: rgba(237,243,244,0.06); border-radius: 0 8px 8px 0; font-size: 15px;
}

/* Trust grid */
.trust-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 30px; }
.trust-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px 24px; }
.trust-card h3 { font-size: 18px; margin-bottom: 8px; color: var(--ink); }

/* FAQ */
.faq { margin-top: 26px; display: grid; gap: 12px; }
.faq details {
  background: rgba(237,243,244,0.06); border: 1px solid rgba(237,243,244,0.16);
  border-radius: var(--radius-sm); padding: 4px 20px;
}
.faq summary {
  cursor: pointer; font-weight: 700; font-size: 16.5px; padding: 16px 0;
  list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--mono); font-size: 22px; color: var(--safe); transition: transform .2s ease; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 0 18px; font-size: 15px; }

/* CTA final */
.cta-final { padding: 90px 0; text-align: center; }
.cta-inner h2 { font-size: clamp(28px, 4vw, 42px); letter-spacing: -1px; }
.cta-inner p { color: var(--ink-soft); margin: 14px auto 26px; max-width: 48ch; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 30px 0; }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; }
.footer-brand { font-weight: 800; }
.footer-nav { display: flex; gap: 22px; }
.footer-nav a { text-decoration: none; color: var(--ink-soft); font-size: 14px; font-weight: 600; }
.footer-nav a:hover { color: var(--accent); }
.footer-note { font-size: 13px; color: var(--muted); }

/* Logo-Loop in der Schluss-Sektion */
.logo-loop { display: inline-flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 16px; margin: 22px 0 30px; }
.logo-loop video {
  height: 84px; width: auto; max-width: 100%; border-radius: 16px;
  border: 1px solid var(--border); background: var(--card);
  box-shadow: 0 16px 40px -22px rgba(34,52,58,0.55);
}
.sound-btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--card); color: var(--ink);
  border: 1.5px solid var(--border); border-radius: 999px;
  padding: 12px 20px; font-size: 15px; font-weight: 700; cursor: pointer;
  font-family: var(--sans); transition: border-color .16s ease, color .16s ease, background .16s ease;
}
.sound-btn:hover { border-color: var(--accent); color: var(--accent); }
.sound-btn .ic-sound { display: none; }
.sound-btn[aria-pressed="true"] { background: var(--safe); border-color: var(--safe); color: #fff; }
.sound-btn[aria-pressed="true"] .ic-muted { display: none; }
.sound-btn[aria-pressed="true"] .ic-sound { display: inline; }

@media (max-width: 560px) {
  .logo-loop { gap: 12px; }
  .logo-loop video { height: 72px; }
  .cta-final .btn-lg { width: 100%; justify-content: center; }
}

.sound-credit { font-size: 12px; color: var(--muted); margin: -14px 0 26px; }
.sound-credit a { color: var(--accent); text-decoration: none; }
.sound-credit a:hover { text-decoration: underline; }

/* powered by */
.powered { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--border); text-align: center; }
.powered a { color: var(--muted); text-decoration: none; font-size: 13.5px; }
.powered a:hover { color: var(--accent); }
.powered strong { color: var(--ink); font-weight: 700; }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .caret { animation: none; }
}

/* Legal pages */
.legal { padding: 60px 0 80px; }
.legal h1 { font-size: 32px; letter-spacing: -0.8px; margin-bottom: 8px; }
.legal h2 { font-size: 20px; margin: 28px 0 8px; }
.legal p, .legal li { color: var(--ink-soft); font-size: 15.5px; }
.legal ul { margin: 8px 0 8px 20px; }
.legal .todo { background: var(--danger-tint); border-left: 3px solid var(--danger); padding: 12px 16px; border-radius: 0 8px 8px 0; margin: 10px 0; color: var(--ink); font-size: 14.5px; }
.legal a { color: var(--accent); }

/* Responsive */
@media (max-width: 900px) {
  .hero-grid, .two-col { grid-template-columns: 1fr; gap: 34px; }
  .stats-grid, .steps { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: 1fr; }
  .site-nav { gap: 14px; }
  .site-nav a:not(.btn) { display: none; }
  .hero { padding: 48px 0 30px; }
}
@media (max-width: 560px) {
  .header-inner { height: 58px; }
  .btn-lg { padding: 13px 20px; }
  .hero-cta { width: 100%; }
  .hero-cta .btn { flex: 1; justify-content: center; }
}