/* ki-personalplanung.de — Stationsoptimierung Gastronomie
   Schlichtes, datenorientiertes Layout. Keine Marketing-Optik. */

:root {
  --bg: #ffffff;
  --bg-soft: #f6f7f9;
  --bg-dark: #0f1b2d;
  --text: #1a2332;
  --text-muted: #5a6573;
  --border: #e3e7ec;
  --accent: #0a6cff;
  --accent-dark: #074fb0;
  --green: #1a8a5a;
  --amber: #b8730a;
  --red: #c0392b;
  --radius: 6px;
  --maxw: 880px;
  --navw: 1140px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 18px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.96);
  border-bottom: 1px solid var(--border);
  backdrop-filter: saturate(180%) blur(8px);
}
.site-header .bar {
  max-width: var(--navw);
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.brand {
  font-weight: 800;
  font-size: 17px;
  color: var(--text);
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.brand span { color: var(--accent); }
.nav { display: flex; gap: 22px; margin-left: auto; flex-wrap: wrap; }
.nav a { color: var(--text-muted); font-size: 15px; font-weight: 600; }
.nav a:hover { color: var(--accent); text-decoration: none; }
.nav-toggle { display: none; }

@media (max-width: 820px) {
  .nav { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--border); padding: 12px 20px; gap: 14px; }
  .nav.open { display: flex; }
  .nav-toggle { display: inline-block; margin-left: auto; background: none; border: 1px solid var(--border); border-radius: var(--radius); padding: 6px 10px; font-size: 14px; cursor: pointer; }
}

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  max-width: var(--maxw);
  margin: 18px auto 0;
  padding: 0 20px;
  font-size: 14px;
  color: var(--text-muted);
}
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; padding: 0; margin: 0; }
.breadcrumb li::after { content: "›"; margin-left: 6px; color: var(--border); }
.breadcrumb li:last-child::after { content: ""; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(180deg, #f3f6fb 0%, #ffffff 100%);
  border-bottom: 1px solid var(--border);
  padding: 56px 20px 48px;
}
.hero .inner { max-width: var(--maxw); margin: 0 auto; }
.hero h1 {
  font-size: 38px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
  font-weight: 800;
}
.hero .sub {
  font-size: 21px;
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 0 24px;
}
.hero .ctas { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 16px;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); text-decoration: none; }
.btn-ghost { border: 1px solid var(--border); color: var(--text); background: #fff; }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }

/* ---------- Main / Article ---------- */
main { display: block; }
.article {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 40px 20px 64px;
}
.article h1 {
  font-size: 34px;
  line-height: 1.22;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
  font-weight: 800;
}
.article .meta {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0 0 28px;
}
.article h2 {
  font-size: 26px;
  margin: 44px 0 12px;
  letter-spacing: -0.01em;
  font-weight: 750;
  scroll-margin-top: 80px;
}
.article h3 {
  font-size: 20px;
  margin: 30px 0 10px;
  font-weight: 700;
}
.article p { margin: 0 0 16px; }
.article ul, .article ol { margin: 0 0 18px; padding-left: 22px; }
.article li { margin: 0 0 8px; }
.lead { font-size: 20px; color: var(--text-muted); margin: 0 0 28px; }

/* ---------- TOC ---------- */
.toc {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
  margin: 0 0 32px;
}
.toc strong { display: block; margin-bottom: 8px; font-size: 14px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-muted); }
.toc ol { margin: 0; padding-left: 20px; }
.toc a { color: var(--text); }
.toc a:hover { color: var(--accent); }

/* ---------- Cards / Grid ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin: 24px 0;
}
.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  background: #fff;
}
.card h3 { margin-top: 0; }
.card .num {
  font-size: 30px;
  font-weight: 800;
  color: var(--accent);
  display: block;
  margin-bottom: 6px;
}

/* ---------- Problem / Lösung Farbcodierung ---------- */
.pill { display: inline-block; font-size: 13px; font-weight: 700; padding: 3px 10px; border-radius: 999px; }
.pill-red { background: #fdecea; color: var(--red); }
.pill-green { background: #e8f5ee; color: var(--green); }
.pill-amber { background: #fdf3e3; color: var(--amber); }

.callout {
  border-left: 4px solid var(--accent);
  background: var(--bg-soft);
  padding: 16px 20px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 24px 0;
}
.callout.green { border-left-color: var(--green); }
.callout.amber { border-left-color: var(--amber); }
.callout.red { border-left-color: var(--red); }

table.data {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 16px;
}
table.data th, table.data td {
  border: 1px solid var(--border);
  padding: 10px 12px;
  text-align: left;
}
table.data th { background: var(--bg-soft); font-weight: 700; }
table.data tr:nth-child(even) td { background: #fafbfc; }

/* ---------- FAQ ---------- */
.faq-group { margin: 32px 0; }
.faq-group h3 {
  border-bottom: 2px solid var(--border);
  padding-bottom: 6px;
  font-size: 18px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-muted);
}
details.faq {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin: 10px 0;
  background: #fff;
}
details.faq[open] { border-color: var(--accent); }
details.faq summary {
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  font-size: 17px;
}
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::before { content: "+"; color: var(--accent); font-weight: 800; margin-right: 10px; display: inline-block; width: 16px; }
details.faq[open] summary::before { content: "–"; }
details.faq p { margin: 12px 0 0; color: var(--text-muted); }

/* ---------- Related / Footer ---------- */
.related {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 32px 20px;
  border-top: 1px solid var(--border);
}
.related h2 { font-size: 22px; margin: 0 0 16px; }
.related ul { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 10px; }
.related li a { display: block; padding: 12px 14px; border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); }
.related li a:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }

.site-footer {
  background: var(--bg-dark);
  color: #c7d0dd;
  padding: 40px 20px 28px;
  margin-top: 40px;
}
.site-footer .inner { max-width: var(--navw); margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr)); gap: 28px; }
.site-footer h4 { color: #fff; font-size: 15px; margin: 0 0 12px; text-transform: uppercase; letter-spacing: 0.04em; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin: 0 0 8px; font-size: 15px; }
.site-footer a { color: #c7d0dd; }
.site-footer a:hover { color: #fff; }
.site-footer .copy { grid-column: 1 / -1; border-top: 1px solid #243349; padding-top: 18px; margin-top: 12px; font-size: 13px; color: #8a97a8; }

.container { max-width: var(--navw); margin: 0 auto; padding: 0 20px; }
.section { padding: 56px 0; border-bottom: 1px solid var(--border); }
.section.soft { background: var(--bg-soft); }
.section h2 { font-size: 28px; letter-spacing: -0.01em; margin: 0 0 8px; font-weight: 800; }
.section .kicker { color: var(--accent); font-weight: 700; font-size: 14px; text-transform: uppercase; letter-spacing: 0.05em; margin: 0 0 8px; }

@media (max-width: 600px) {
  .hero h1 { font-size: 30px; }
  .article h1 { font-size: 28px; }
  body { font-size: 17px; }
}

/* ---------- Hero SaaS 2026 ---------- */
.hero--saas {
  padding: 60px 20px 52px;
}
.hero-grid {
  max-width: var(--navw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 52px;
  align-items: center;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 18px;
}
.hero-copy h1 {
  font-size: 40px;
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin: 0 0 18px;
  font-weight: 800;
}
.hero-sub {
  font-size: 19px;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0 0 28px;
  max-width: 460px;
}
.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}
.trust-badge {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
}
.trust-badge::before {
  content: "✓ ";
  color: var(--green);
  font-weight: 800;
}

/* Hero Visual — Produkt-Mock */
.hero-mock {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px;
  box-shadow: 0 24px 64px -20px rgba(10,20,50,0.16), 0 4px 16px -4px rgba(10,20,50,0.07);
}
.mock-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}
.mock-day {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
}
.mock-badge {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  background: rgba(10,108,255,0.09);
  border-radius: 999px;
  padding: 2px 10px;
}
.mock-forecast-row {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.mock-forecast-row strong {
  color: var(--text);
  font-weight: 700;
}
.mock-stations {
  display: flex;
  flex-direction: column;
  gap: 11px;
  margin-bottom: 18px;
}
.mock-station {
  display: grid;
  grid-template-columns: 64px 1fr 72px;
  align-items: center;
  gap: 10px;
}
.mock-sname {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 600;
}
.mock-track {
  height: 7px;
  background: var(--bg-soft);
  border-radius: 4px;
  overflow: hidden;
}
.mock-bar {
  height: 100%;
  background: var(--accent);
  border-radius: 4px;
}
.mock-bar--warn {
  background: var(--amber);
}
.mock-sval {
  font-size: 12px;
  font-weight: 700;
  color: var(--text);
  text-align: right;
}
.mock-kpis {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}
.mock-kpi-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 3px;
}
.mock-kpi-value {
  font-size: 22px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
}
.mock-kpi-value--good {
  color: var(--green);
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .hero-copy h1 { font-size: 34px; }
  .hero-sub { max-width: 100%; }
}
@media (max-width: 600px) {
  .hero--saas { padding: 40px 20px 36px; }
  .hero-copy h1 { font-size: 28px; }
  .hero-sub { font-size: 17px; }
  .hero-trust { gap: 12px; }
}