/* RailFree Landing — Farben wie die App: Nachtblau, Weiss für Bedienbares,
   Grün/Amber/Rot nur für Schranken-Zustände. */
@font-face {
  font-family: "Geist";
  src: url("/fonts/Geist-Variable.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --night: #060d20;
  --surface: #111b33;
  --surface-2: #0c1428;
  --line: #1f2a47;
  --line-soft: rgba(190, 210, 255, 0.1);
  --ink: #f5f7fc;
  --muted: #b4bdd2;
  --dim: #9aa5bf;
  --green: #52e08f;
  --amber: #ffb340;
  --red: #ff5b57;
  --blue: #7fb2ff;
  --radius: 16px;
  --font: "Geist", system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; background: var(--night); scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  color: var(--ink);
  font: 400 17px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
}

/* Die zwei ruhigen Lichter der App, als fixierte Ebene (iOS Safari kennt kein background-attachment: fixed). */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(120% 60% at 85% 0%, #0c2a36 0%, rgba(12, 42, 54, 0) 55%),
    radial-gradient(90% 50% at 0% 100%, #0e2046 0%, rgba(14, 32, 70, 0) 60%),
    linear-gradient(#060d20, #050a18);
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; }
p { margin: 0; }
h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.025em; line-height: 1.12; }

:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; border-radius: 6px; }

.skip {
  position: absolute; left: 16px; top: -60px; z-index: 10;
  background: var(--ink); color: var(--night); padding: 10px 14px; border-radius: 10px; font-weight: 600;
}
.skip:focus { top: 12px; }
main:focus { outline: none; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
@media (min-width: 900px) { .wrap { padding: 0 48px; } }

.section { padding-block: 48px; }
@media (min-width: 900px) { .section { padding-block: 56px; } }

.kicker {
  font-size: 13px; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--dim);
}
.section-title { font-size: clamp(30px, 5vw, 44px); margin: 12px 0 16px; max-width: 820px; }
.lead { font-size: clamp(17px, 2vw, 19px); line-height: 1.6; color: var(--muted); max-width: 640px; }
.num { font-variant-numeric: tabular-nums; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 12px 20px; border-radius: 12px;
  font: 600 16px/1.2 var(--font); text-decoration: none;
  transition: background-color .2s ease, border-color .2s ease, color .2s ease, transform .2s ease;
}
.btn-primary { background: var(--ink); color: var(--night); }
.btn-primary:hover { background: #ffffff; transform: translateY(-1px); }
.btn-secondary { border: 1px solid #5a6b97; color: var(--ink); }
.btn-secondary:hover { border-color: #6b7aa3; background: rgba(255, 255, 255, 0.04); }
.btn svg { width: 18px; height: 18px; }
@media (prefers-reduced-motion: reduce) { .btn, .btn:hover { transition: none; transform: none; } }

.card {
  background: linear-gradient(180deg, rgba(120, 150, 220, 0.11), rgba(120, 150, 220, 0.04));
  border: 1px solid rgba(190, 210, 255, 0.13);
  border-radius: var(--radius);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.09), 0 18px 40px rgba(0, 0, 0, 0.25);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
}

.icon {
  width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.7;
  stroke-linecap: round; stroke-linejoin: round;
}

/* Navigation */
.nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 76px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; font-size: 17px; text-decoration: none; min-height: 44px; }
.brand img { width: 30px; height: 30px; border-radius: 8px; }
.nav-links { display: none; gap: 4px; }
.nav-links a, .lang {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0 12px;
  color: var(--muted); text-decoration: none; font-size: 15px; border-radius: 10px;
}
.nav-links a:hover, .lang:hover { color: var(--ink); }
.lang { border: 1px solid var(--line); font-weight: 600; font-size: 13px; letter-spacing: 0.06em; }
.nav-right { display: flex; align-items: center; gap: 8px; }
@media (min-width: 720px) { .nav-links { display: flex; } }

/* Fusszeile */
.footer { margin-top: 24px; }
.footer-inner {
  border-top: 1px solid var(--line-soft); padding-top: 28px; padding-bottom: 40px;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 24px;
  font-size: 15px; color: var(--dim);
}
.footer nav { display: flex; flex-wrap: wrap; gap: 0 8px; }
.footer nav a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 6px; color: var(--muted); text-decoration: none; }
.footer nav a:hover { color: var(--ink); text-decoration: underline; }

/* Hero */
.hero { display: grid; gap: 40px; padding-top: 24px; align-items: center; overflow-x: clip; }
.status {
  display: inline-flex; align-items: center; gap: 10px; font-size: 14px; color: var(--muted);
  border: 1px solid var(--line); border-radius: 999px; padding: 7px 14px;
}
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ink); box-shadow: 0 0 10px rgba(245, 247, 252, 0.7); }
.hero h1 { font-size: clamp(40px, 7.4vw, 68px); line-height: 1.02; letter-spacing: -0.035em; margin: 22px 0 20px; }
.h1-soft { color: var(--muted); }
.hero .lead { max-width: 540px; }
.ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-visual { display: flex; justify-content: center; position: relative; }
.hero-visual { isolation: isolate; }
.hero-visual::before {
  content: ""; position: absolute; left: 50%; top: 50%; z-index: 0; pointer-events: none;
  width: 170%; height: 125%; transform: translate(-50%, -50%);
  background: radial-gradient(closest-side, rgba(50, 205, 210, 0.62), rgba(40, 130, 230, 0.3) 48%, transparent 76%);
}
.hero-visual picture { position: relative; z-index: 1; }
.hero-visual img { width: min(300px, 72vw); height: auto; filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.55)); }
@media (min-width: 900px) {
  .hero { grid-template-columns: 1.15fr 0.85fr; gap: 24px; padding-top: 40px; }
  .hero-visual img { width: 340px; }
}


/* App-Merkmale */
.features { list-style: none; margin: 40px 0 0; padding: 0; display: grid; gap: 14px; }
.feature { padding: 24px; }
.feature .icon { width: 40px; height: 40px; padding: 9px; border-radius: 11px; background: rgba(255, 255, 255, 0.06); margin-bottom: 18px; }
.feature h3 { font-size: 18px; margin-bottom: 8px; }
.feature p { font-size: 16px; color: var(--muted); line-height: 1.55; }
@media (min-width: 640px) { .features { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .features { grid-template-columns: repeat(4, 1fr); } }
.note-line { margin-top: 28px; font-size: 16px; color: var(--muted); display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; }
.note-line a { color: var(--ink); text-underline-offset: 3px; display: inline-flex; align-items: center; min-height: 44px; }
.pill {
  font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  border: 1px solid var(--line); border-radius: 999px; padding: 3px 10px; color: var(--ink);
}
.status-dot { flex: 0 0 8px; }

/* Fachteil: Weg-Zeit-Diagramme */
.steps { margin-top: 48px; }
.step { display: grid; gap: 24px; padding: 40px 0; border-top: 1px solid var(--line-soft); align-items: center; }
.step:first-child { border-top: 0; padding-top: 8px; }
.step-n { font-size: 13px; color: var(--dim); letter-spacing: 0.08em; }
.step h3 { font-size: clamp(22px, 3vw, 28px); margin: 8px 0 12px; }
.step-text p:last-child { font-size: 16.5px; color: var(--muted); line-height: 1.6; max-width: 460px; }
@media (min-width: 900px) { .step-text p:last-child { font-size: 18px; } }
@media (min-width: 600px) { .diagram svg text { font-size: 10.5px; } }
@media (min-width: 900px) and (max-width: 999px) { .diagram svg text { font-size: 11.5px; } }
.diagram.card { -webkit-backdrop-filter: none; backdrop-filter: none; }
@media (min-width: 900px) { .step { grid-template-columns: 5fr 7fr; gap: 56px; padding: 56px 0; } }

.diagram { margin: 0; padding: 16px 16px 14px; }
.diagram svg { width: 100%; height: auto; overflow: visible; }
.diagram text { font-family: var(--font); fill: var(--dim); }
.diagram-cap { display: flex; justify-content: space-between; align-items: center; gap: 12px; font-size: 13px; color: var(--dim); margin-bottom: 6px; min-height: 44px; }
.replay {
  font: 500 13px/1 var(--font); color: var(--muted); background: transparent; cursor: pointer;
  border: 1px solid var(--line); border-radius: 999px; padding: 0 14px; min-height: 44px; min-width: 44px;
}
.replay::before { content: "↻ " / ""; }
.replay { white-space: nowrap; flex: 0 0 auto; }
.replay:hover { color: var(--ink); border-color: #34426a; }
.grid line { stroke: #17213b; }
.axis line { stroke: #2a3657; }
.bue { stroke: var(--amber); stroke-width: 1.5; stroke-dasharray: 5 5; }
.diagram .bue-label { fill: var(--amber); }
.diagram .lbl { fill: var(--ink); }
.diagram .lbl-strong { font-weight: 600; }
.window-band { fill: rgba(255, 179, 64, 0.08); }
.window-bar { fill: rgba(255, 179, 64, 0.5); }
.window-outline { fill: none; stroke: rgba(255, 179, 64, 0.65); stroke-dasharray: 3 3; }
.window-plan { stroke: #6b7795; }
.train { fill: none; stroke-width: 3; stroke-linecap: round; }
.train-a { stroke: var(--green); }
.train-b { stroke: var(--blue); }
.plan { fill: none; stroke: #6b7795; stroke-width: 2.5; stroke-dasharray: 6 6; }
.arrow { stroke: var(--ink); stroke-width: 1.4; }
.actual line { stroke: var(--ink); stroke-width: 2; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 16px; margin-top: 12px; font-size: 13.5px; color: var(--muted); }
.legend span { display: inline-flex; align-items: center; gap: 7px; }
.sw { display: inline-block; width: 18px; height: 3px; border-radius: 2px; }
.sw-green { background: var(--green); }
.sw-blue { background: var(--blue); }
.sw-plan { background: repeating-linear-gradient(90deg, #6b7795 0 5px, transparent 5px 9px); }
.sw-white { background: var(--ink); width: 3px; height: 14px; }
.sw-box { width: 14px; height: 10px; background: rgba(255, 179, 64, 0.5); }
.sw-soft { width: 14px; height: 10px; background: rgba(255, 179, 64, 0.18); }

@keyframes draw { from { stroke-dashoffset: 1; } to { stroke-dashoffset: 0; } }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
@media screen and (prefers-reduced-motion: no-preference) {
  html.js .diagram:not(.play) .train { stroke-dasharray: 1; stroke-dashoffset: 1; }
  html.js .diagram:not(.play) .fade { opacity: 0; }
  html.js .diagram.play .train { stroke-dasharray: 1; animation: draw 1.6s cubic-bezier(.4, 0, .2, 1) var(--d, 0s) both; }
  html.js .diagram.play .fade { animation: fade .6s ease var(--d, 0s) both; }
}

.hurdles { margin-top: 32px; padding: 28px 24px; }
.hurdles h3 { font-size: 20px; margin-bottom: 16px; }
.hurdles ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.hurdles li { font-size: 16px; color: var(--muted); line-height: 1.55; padding-left: 22px; position: relative; }
.hurdles li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 10px; height: 2px; background: var(--dim); }
.hurdles b { color: var(--ink); font-weight: 600; }
@media (min-width: 900px) { .hurdles ul { grid-template-columns: repeat(2, 1fr); gap: 16px 40px; } }

/* Einsatzkräfte */
.ek {
  border-radius: 28px; border: 1px solid #2a2440; padding: 40px 20px;
  background:
    radial-gradient(700px 380px at 95% 0%, rgba(255, 91, 87, 0.16), transparent 60%),
    radial-gradient(700px 420px at 0% 100%, rgba(70, 110, 255, 0.18), transparent 60%),
    #0a1124;
  display: grid; gap: 40px;
}
.ek .section-title { margin-top: 12px; }
.ek-scene {
  margin-top: 26px; padding: 18px 20px; border-radius: 14px;
  background: rgba(255, 255, 255, 0.04); border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 16px; line-height: 1.6; color: var(--muted);
}
.ek-scene b { color: var(--ink); }
.ek-ideas-title { font-size: 15px; font-weight: 600; color: var(--muted); letter-spacing: 0; margin-bottom: 4px; }
.ek-ideas ul { list-style: none; margin: 0; padding: 0; }
.ek-ideas li { display: flex; gap: 16px; padding: 18px 0; border-top: 1px solid rgba(255, 255, 255, 0.08); }
.ek-ideas li .icon { flex: 0 0 40px; width: 40px; height: 40px; padding: 9px; border-radius: 11px; background: rgba(255, 255, 255, 0.06); }
.ek-ideas h4 { margin: 0; font-size: 17px; font-weight: 600; }
.ek-ideas li p { font-size: 16px; color: var(--muted); line-height: 1.5; margin-top: 3px; }
.ek-ask { margin-top: 20px; padding: 24px; border-radius: 18px; background: var(--ink); color: var(--night); }
.ek-ask h3 { font-size: 19px; letter-spacing: -0.01em; }
.ek-ask p { font-size: 16px; color: #3c4256; line-height: 1.55; margin: 8px 0 18px; }
.btn-dark { background: var(--night); color: var(--ink); }
.btn-dark:hover { background: #111b33; }
.ek-ask :focus-visible { outline-color: var(--night); }
@media (min-width: 900px) { .ek { grid-template-columns: 6fr 5fr; gap: 56px; padding: 64px 56px; } }

/* Kontakt */
.contact { display: grid; gap: 40px; }
.origin { position: relative; margin: 32px 0 0; padding: 36px 0 0; }
.origin::before {
  content: "\201C" / ""; position: absolute; top: -10px; left: -6px; pointer-events: none;
  font-size: 96px; line-height: 1; font-weight: 600; color: rgba(245, 247, 252, 0.18);
}
.origin p { font-size: clamp(18px, 2vw, 20px); line-height: 1.6; color: var(--ink); }
.origin footer { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line-soft); }
.origin cite { font-style: normal; display: flex; flex-direction: column; gap: 8px; }
.origin cite b { font-size: 18px; font-weight: 600; }
.origin-role { display: flex; flex-wrap: wrap; gap: 6px; }
.origin-role span {
  font-size: 13px; font-weight: 500; letter-spacing: 0.02em; color: var(--ink);
  border: 1px solid rgba(190, 210, 255, 0.2); border-radius: 999px; padding: 4px 11px;
}
.routes { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; align-content: start; }
.route { padding: 22px; }
.route h3 { font-size: 17px; }
.route p { font-size: 16px; color: var(--muted); line-height: 1.5; margin: 6px 0 10px; }
.route a { display: inline-flex; align-items: center; min-height: 44px; font-size: 16px; color: var(--ink); text-underline-offset: 4px; text-decoration-color: #4a5a85; }
.route a:hover { text-decoration-color: var(--ink); }
@media (min-width: 640px) { .routes { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1000px) { .contact { grid-template-columns: 5fr 7fr; gap: 56px; } }

/* UI-Audit: ausgewogene Überschriften, Druck-Feedback */
h1, h2, h3 { text-wrap: balance; }
.btn:active { transform: scale(0.98); }
@media (prefers-reduced-motion: reduce) { .btn:active { transform: none; } }

/* Prognose-Showcase im App-Teil */
.showcase { display: grid; gap: 32px; align-items: center; margin-top: 48px; }
.showcase-kicker { font-size: 13px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink); }
.showcase h3 { font-size: clamp(24px, 3.2vw, 32px); margin: 10px 0 14px; }
.showcase-text > p:not(.showcase-kicker) { font-size: 17px; color: var(--muted); line-height: 1.6; max-width: 520px; }
.checks { list-style: none; margin: 20px 0 0; padding: 0; display: grid; gap: 10px; }
.checks li { position: relative; padding-left: 28px; font-size: 16px; color: var(--ink); line-height: 1.5; }
.checks li::before {
  content: ""; position: absolute; left: 2px; top: 0.35em; width: 14px; height: 8px;
  border-left: 2px solid var(--ink); border-bottom: 2px solid var(--ink); transform: rotate(-45deg);
}
.showcase-visual { position: relative; display: flex; justify-content: center; padding: 0 0 8px; }
.showcase-visual img { height: auto; filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.55)); }
.phone-front img { width: min(280px, 64vw); position: relative; z-index: 1; }
.phone-back { position: absolute; right: 50%; top: 9%; transform: translateX(-38%); opacity: 0.85; }
.phone-back img { width: min(220px, 50vw); }
@media (min-width: 900px) {
  .showcase { grid-template-columns: 1fr 1fr; gap: 48px; }
  .phone-front img { width: 300px; margin-left: 190px; }
  .phone-back { right: auto; left: 0; transform: none; }
  .phone-back img { width: 240px; }
}
.features { margin-top: 56px; }
@media (min-width: 1000px) { .features { grid-template-columns: repeat(3, 1fr); } }

/* Einsatzkräfte: Status «In Planung» */
.planned {
  display: inline-block; margin-left: 10px; padding: 3px 10px; border-radius: 999px; vertical-align: 1px;
  font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--night); background: var(--ink);
}
.ek-status {
  margin-top: 18px; padding: 14px 16px; border-radius: 12px; border: 1px dashed rgba(245, 247, 252, 0.35);
  font-size: 16px; line-height: 1.55; color: var(--ink);
}
@media (max-width: 899px) { .phone-back { display: none; } }

/* Mini-CTA am Ende des Fachteils */
.chapter-cta {
  margin-top: 24px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px;
  padding: 20px 24px;
}
.chapter-cta p { font-size: 17px; color: var(--ink); font-weight: 500; }
.vh { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }