/* Fahrtenbuch – project website
   No external fonts, scripts or trackers. Colours follow the Android app theme (sky/slate). */

:root {
  /* Colours from the Android app theme (FahrtenbuchLightColors) and web dashboard */
  --bg: #ffffff;              /* app: main */
  --surface: #f8fafc;         /* app: surface (slate-50) */
  --surface-2: #f1f5f9;       /* slate-100 */
  --text: #1a1a1a;            /* app: text */
  --muted: #475569;           /* slate-600 */
  --border: #e2e8f0;          /* app: border (slate-200) */
  --accent: #0284c7;          /* buttons & links – web dashboard accent (sky-600) */
  --link: #0369a1;            /* sky-700, readable text links */
  --accent-ink: #ffffff;      /* app: accentText */
  --accent-soft: #e0f2fe;     /* app: accentSecondary (sky-100) */
  --brand-blue: #0ea5e9;      /* app: accent (sky-500) */
  --signal: #38bdf8;          /* sky-400 highlights on dark panels */
  --warn: #f59e0b;            /* app: amber_500 */
  --road: #0f172a;            /* slate-900 */
  --navy-grad: linear-gradient(135deg, #0c4a6e 0%, #0f172a 100%);  /* sky-900 → slate-900 */
  --road-line: #ffffff;
  --code-bg: #0f172a;
  --code-text: #e2e8f0;
  /* Trip categories as in the app */
  --cat-business-bg: #dcebfa;  --cat-business-fg: #0b4f86;
  --cat-private-bg: #ede5fb;   --cat-private-fg: #5b3a9e;
  --cat-commute-bg: #d9f3eb;   --cat-commute-fg: #0e6b52;
  --cat-open-bg: #fcefd6;      --cat-open-fg: #8a5a00;
  --radius: 14px;
  --maxw: 1120px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    /* FahrtenbuchDarkColors */
    --bg: #121212;              /* app: main */
    --surface: #1e293b;         /* app: surface (slate-800) */
    --surface-2: #273449;
    --text: #f5f5f5;            /* app: text */
    --muted: #94a3b8;           /* slate-400 */
    --border: #334155;          /* app: border (slate-700) */
    --accent: #0284c7;          /* app: accent (sky-600) */
    --link: #38bdf8;            /* sky-400 */
    --accent-ink: #ffffff;
    --accent-soft: #0c4a6e;     /* app: accentSecondary (sky-900) */
    --brand-blue: #0ea5e9;
    --signal: #38bdf8;
    --warn: #fbbf24;
    --road: #0b1120;
    --navy-grad: linear-gradient(135deg, #0c4a6e 0%, #0b1120 100%);
    --road-line: #334155;
    --code-bg: #0b1120;
    --cat-business-bg: #1c2a38;  --cat-business-fg: #9ed1ff;
    --cat-private-bg: #2a2138;   --cat-private-fg: #cdb8ff;
    --cat-commute-bg: #16302b;   --cat-commute-fg: #8fe3cb;
    --cat-open-bg: #3a2e17;      --cat-open-fg: #f7c873;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }

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

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

/* ---------- Kopfzeile ---------- */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--border);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: var(--text); text-decoration: none; letter-spacing: -0.01em; }
.brand svg { flex: none; }
.nav { display: flex; gap: 22px; font-size: 15px; }
.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--text); }

/* ---------- Hero ---------- */
.hero { padding: 72px 0 56px; }
.hero .wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.eyebrow::before { content: ""; width: 22px; height: 4px; border-radius: 2px; background: var(--signal); }
h1 { font-size: clamp(38px, 6vw, 64px); line-height: 1.04; letter-spacing: -0.035em; margin: 16px 0 20px; }
h1 em { font-style: normal; color: var(--accent); }
.lead { font-size: 19px; color: var(--muted); max-width: 34em; margin: 0 0 28px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 20px; border-radius: 999px; font-weight: 600; font-size: 15px; text-decoration: none; border: 1px solid var(--border); color: var(--text); background: var(--surface); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn:hover { filter: brightness(1.05); }
.meta-row { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-top: 28px; font-size: 14px; color: var(--muted); }
.meta-row b { color: var(--text); font-weight: 600; }

.hero-art { position: relative; }
.hero-art svg { width: 100%; height: auto; display: block; }

/* ---------- Abschnitte ---------- */
section { padding: 64px 0; }
section.alt { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
h2 { font-size: clamp(28px, 3.6vw, 38px); letter-spacing: -0.025em; line-height: 1.15; margin: 0 0 12px; }
.section-lead { color: var(--muted); max-width: 40em; margin: 0 0 36px; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
section.alt .card { background: var(--bg); }
.card h3 { font-size: 18px; margin: 14px 0 6px; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--muted); font-size: 15.5px; }
.icon { width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); }
.icon svg { width: 22px; height: 22px; }

/* Zwei Bausteine */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.split .card { padding: 28px; }
.tag { display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; padding: 3px 10px; border-radius: 999px; background: var(--surface-2); color: var(--muted); }
ul.check { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 8px; }
ul.check li { position: relative; padding-left: 26px; font-size: 15.5px; }
ul.check li::before { content: ""; position: absolute; left: 2px; top: 0.55em; width: 12px; height: 6px; border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(-45deg); }

/* Ablauf */
.steps { counter-reset: s; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.step { position: relative; padding-top: 52px; }
.step::before { counter-increment: s; content: counter(s); position: absolute; top: 0; left: 0; width: 36px; height: 36px; border-radius: 50%; background: var(--road); color: var(--signal); font-weight: 700; display: grid; place-items: center; font-size: 15px; }
.step h3 { margin: 0 0 6px; font-size: 17px; }
.step p { margin: 0; color: var(--muted); font-size: 15px; }

/* Code */
pre { background: var(--code-bg); color: var(--code-text); border-radius: var(--radius); padding: 20px 22px; overflow-x: auto; font-size: 14px; line-height: 1.55; margin: 0; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
p code, li code, td code { background: var(--surface-2); padding: 1px 6px; border-radius: 5px; font-size: 0.9em; }

/* Tabelle */
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-weight: 600; color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; }
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }

/* Datenschutz-Banner */
.promise { display: grid; grid-template-columns: auto 1fr auto; gap: 24px; align-items: center; background: var(--navy-grad); color: #f1f5f9; border-radius: 20px; padding: 32px 36px; }
.promise h2 { color: #fff; font-size: 26px; margin: 0 0 6px; }
.promise p { margin: 0; color: #cbd5e1; }
.promise .btn { background: var(--signal); color: #0f172a; border-color: var(--signal); }

/* ---------- Rechtstexte ---------- */
.legal { padding: 56px 0 80px; }
.legal .wrap { display: grid; grid-template-columns: 240px 1fr; gap: 56px; align-items: start; }
.toc { position: sticky; top: 88px; font-size: 14px; }
.toc p { font-weight: 600; margin: 0 0 10px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; font-size: 12px; }
.toc ol { margin: 0; padding-left: 18px; display: grid; gap: 6px; }
.toc a { color: var(--muted); text-decoration: none; }
.toc a:hover { color: var(--text); }
.prose { max-width: 46em; }
.prose h1 { font-size: clamp(34px, 5vw, 48px); margin-top: 0; }
.prose h2 { font-size: 24px; margin: 48px 0 12px; padding-top: 8px; scroll-margin-top: 84px; }
.prose h3 { font-size: 18px; margin: 28px 0 8px; scroll-margin-top: 84px; }
.prose p, .prose li { color: var(--text); }
.prose ul { padding-left: 22px; }
.prose li { margin: 4px 0; }
.note { background: var(--accent-soft); border-left: 4px solid var(--accent); border-radius: 8px; padding: 14px 18px; margin: 20px 0; font-size: 15.5px; }
.note.warn { background: color-mix(in srgb, var(--warn) 18%, var(--surface)); border-left-color: var(--warn); }
.placeholder { background: color-mix(in srgb, var(--warn) 35%, transparent); padding: 0 4px; border-radius: 4px; }
address { font-style: normal; }
.stand { color: var(--muted); font-size: 15px; }

/* ---------- Fußzeile ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 32px 0 40px; font-size: 14px; color: var(--muted); }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; }
.site-footer nav { display: flex; gap: 18px; flex-wrap: wrap; }
.site-footer a { color: var(--muted); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero .wrap, .split, .legal .wrap { grid-template-columns: 1fr; }
  .hero-art { max-width: 460px; }
  .grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .toc { position: static; }
  .promise { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .wrap { padding: 0 16px; }
  .nav { gap: 14px; font-size: 14px; }
  .nav .hide-sm { display: none; }
  .hero { padding: 44px 0 32px; }
  section { padding: 48px 0; }
  .grid, .steps { grid-template-columns: 1fr; }
  .promise { padding: 26px 22px; }
}

/* Grid-Kinder dürfen schrumpfen (verhindert horizontales Scrollen) */
.legal .wrap > *, .hero .wrap > *, .split > * { min-width: 0; }
.prose { overflow-wrap: break-word; }

/* Documentation cards */
a.doc-link { display: block; text-decoration: none; color: var(--text); transition: border-color .15s, transform .15s; }
a.doc-link:hover { border-color: var(--accent); transform: translateY(-2px); }
a.doc-link h3 { margin-top: 12px; }
.brand img { display: block; border-radius: 7px; }

/* ---------- GitHub & store buttons ---------- */
.btn svg.gh { flex: none; }
.nav-gh { display: inline-flex; align-items: center; gap: 6px; }
.store-row { margin-top: 14px; align-items: center; }
.store-badge {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 18px 8px 14px; border-radius: 12px;
  background: var(--road); color: #fff; text-decoration: none;
  border: 1px solid color-mix(in srgb, #fff 14%, var(--road));
  line-height: 1.1;
}
.store-badge:hover { filter: brightness(1.15); }
.store-badge .play { color: var(--signal); flex: none; }
.store-badge span { display: flex; flex-direction: column; font-weight: 600; font-size: 18px; letter-spacing: -0.01em; }
.store-badge small { font-weight: 500; font-size: 10.5px; letter-spacing: 0.04em; text-transform: uppercase; color: #cbd5e1; margin-bottom: 2px; }
.store-badge.small { padding: 6px 14px 6px 11px; border-radius: 10px; }
.store-badge.small span { font-size: 15px; }
.store-badge.small small { font-size: 9.5px; }
.text-link { font-weight: 600; font-size: 15px; text-decoration: none; }
.card-actions { margin-top: 20px; display: flex; flex-wrap: wrap; gap: 10px; }
.gh-btn { padding: 9px 16px; }

/* ---------- Footer with columns ---------- */
.site-footer { padding-top: 48px; }
.site-footer .footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 32px; }
.site-footer .footer-grid nav { display: flex; flex-direction: column; gap: 8px; }
.site-footer .footer-grid nav p { margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; color: var(--text); }
.site-footer .footer-grid nav a { text-decoration: none; }
.site-footer .footer-grid nav a:hover { color: var(--text); text-decoration: underline; }
.footer-brand .brand { font-size: 17px; }
.footer-brand p { margin: 10px 0 16px; max-width: 26em; }
.footer-badges { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.footer-badges .btn { color: var(--text); text-decoration: none; }
.site-footer .footer-bottom { margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--border); font-size: 13px; }
@media (max-width: 900px) { .site-footer .footer-grid { grid-template-columns: 1fr 1fr; } .footer-brand { grid-column: 1 / -1; } }
@media (max-width: 480px) { .site-footer .footer-grid { grid-template-columns: 1fr; } }
.site-footer .footer-brand .brand { color: var(--text); }
.site-footer a.store-badge, .site-footer a.store-badge:hover { color: #fff; text-decoration: none; }
.site-footer .footer-bottom { border-top: 0; position: relative; }
.site-footer .footer-bottom::before { content: ""; position: absolute; top: 0; left: 24px; right: 24px; border-top: 1px solid var(--border); }
@media (max-width: 600px) { .site-footer .footer-bottom::before { left: 16px; right: 16px; } }

/* ---------- Beta ---------- */
.beta-btn { gap: 8px; }
.beta-btn svg, .beta .btn svg { flex: none; }
.beta { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: center;
  background: var(--surface); border: 1px solid var(--border); border-radius: 20px; padding: 36px; }
.beta h2 { margin-top: 12px; }
.beta .section-lead { margin-bottom: 24px; }
.beta .cta { align-items: center; }
.beta-steps { counter-reset: b; list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.beta-steps li { counter-increment: b; position: relative; padding-left: 44px; color: var(--muted); font-size: 15.5px; }
.beta-steps li b { color: var(--text); }
.beta-steps li::before { content: counter(b); position: absolute; left: 0; top: -2px; width: 30px; height: 30px; border-radius: 50%;
  background: var(--accent-soft); color: var(--accent); font-weight: 700; font-size: 14px; display: grid; place-items: center; }
@media (max-width: 900px) { .beta { grid-template-columns: 1fr; padding: 26px 22px; } }

/* ---------- Demo ---------- */
.demo-btn svg { flex: none; }
.demo { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: center; }
.demo h2 { margin-top: 12px; }
.demo .section-lead { margin-bottom: 24px; }
.demo .btn svg { flex: none; }
.demo-note { margin: 20px 0 0; font-size: 14.5px; color: var(--muted); max-width: 36em; }
.creds-card { background: var(--navy-grad); color: #f1f5f9; border-radius: 18px; padding: 26px 26px 22px; }
.creds-title { margin: 0 0 14px; font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--signal); }
.creds { margin: 0; display: grid; gap: 10px; }
.cred { display: grid; grid-template-columns: 92px 1fr; align-items: center; gap: 12px;
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.08); border-radius: 12px; padding: 10px 10px 10px 14px; }
.cred dt { font-size: 13px; color: #cbd5e1; }
.cred dd { margin: 0; display: flex; align-items: center; justify-content: space-between; gap: 10px; min-width: 0; }
.cred code { background: none; padding: 0; font-size: 15.5px; color: #fff; overflow-wrap: anywhere; }
.copy { flex: none; display: inline-flex; align-items: center; gap: 6px; font: inherit; font-size: 13px; font-weight: 600;
  color: #fff; background: rgba(255,255,255,.1); border: 0; border-radius: 8px; padding: 6px 10px; cursor: pointer; }
.copy:hover { background: rgba(255,255,255,.18); }
.copy.ok { background: var(--accent); color: #fff; }
.creds-hint { margin: 16px 0 0; font-size: 13.5px; color: #cbd5e1; }
@media (max-width: 900px) { .demo { grid-template-columns: 1fr; } }
@media (max-width: 420px) { .cred { grid-template-columns: 1fr; gap: 6px; } }

/* ---------- Demo page & teaser ---------- */
.demo-hero .creds-card { align-self: center; }
.demo-hero .creds-hint a { color: #fff; }
.demo-teaser { display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.demo-teaser h2 { margin: 12px 0 8px; }
.demo-teaser p { margin: 0; color: var(--muted); max-width: 40em; }
.demo-teaser .btn svg { flex: none; }
.split .card h3 { margin-top: 14px; }
.card .demo-note { margin-top: 20px; font-size: 14.5px; }

/* ---------- Logo refresh ---------- */
.brand img { border-radius: 8px; }
.store-badge { background: var(--road); border-color: color-mix(in srgb, #fff 14%, var(--road)); }
.store-badge small { color: #cbd5e1; }
.cred dt, .creds-hint { color: #cbd5e1; }
.cred { background: rgba(255,255,255,.07); border-color: rgba(255,255,255,.1); }
.copy.ok { background: var(--brand-blue); }
.eyebrow::before { background: linear-gradient(90deg, var(--brand-blue), var(--signal)); }
.hero { background: radial-gradient(1100px 520px at 85% -10%, color-mix(in srgb, var(--brand-blue) 14%, transparent), transparent 70%); }

/* ---------- App colour scheme ---------- */
a { color: var(--link); }
.btn.primary, .btn.primary:visited { color: var(--accent-ink); }
.btn.primary:hover { background: #0369a1; border-color: #0369a1; filter: none; }
a.doc-link:hover { border-color: var(--brand-blue); }
.icon { background: var(--accent-soft); color: var(--accent); }
section.alt { background: var(--surface); }
section.alt .card { background: var(--bg); }
.card { background: var(--bg); }
section:not(.alt) .card { background: var(--surface); }
.text-link { color: var(--link); }
.cat-chip { display: inline-block; font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 999px; }
.cat-business { background: var(--cat-business-bg); color: var(--cat-business-fg); }
.cat-private { background: var(--cat-private-bg); color: var(--cat-private-fg); }
.cat-commute { background: var(--cat-commute-bg); color: var(--cat-commute-fg); }
.cat-open { background: var(--cat-open-bg); color: var(--cat-open-fg); }
.cat-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .icon { color: var(--link); } }