/* ══════════════════════════════════════════════════════════════════════
   Novus Labor · geteiltes Design-System für alle Seiten
   Design-Sprache 1:1 aus dem echten Produkt-Code (web-app):
   Geist als einzige Familie, Indigo-Akzent, Flame-Wortmarke, Linear/Vercel-Minimal.
   ══════════════════════════════════════════════════════════════════════ */


:root {
  /* Kühles Off-White, niemals beige/warm (Produkt-Background) */
  --bg:          hsl(215 41% 98%);
  --surface:     #ffffff;

  /* Slate-Tinte */
  --fg:          hsl(220 23% 12%);
  --muted:       hsl(220 8% 38%);

  --border:      hsl(220 13% 91%);
  --border-soft: hsl(220 13% 94.5%);

  /* Zweiter Oberflaechenton fuer Sektions-Wechsel: Weiss gegen Off-White,
     kein neuer Farbwert, nur Flaechen abwechselnd anders fuellen */
  --surface-alt: var(--surface);

  /* Akzent: Indigo (Produkt-Primary) */
  --accent:        hsl(222 62% 52%);
  --accent-on:     #ffffff;
  --accent-hover:  color-mix(in oklab, var(--accent), black 8%);
  --accent-active: color-mix(in oklab, var(--accent), black 14%);
  --accent-wash:   color-mix(in oklab, var(--accent), transparent 92%);
  --brand-2:       #5540b0; /* Violett-Indigo: Logo-Verlauf + zweiter Tint */

  /* Dunkles Slate-Band (max. 1x pro Seite, Finale-CTA) */
  --ink-band:       hsl(222 45% 9%);
  --ink-band-fg:    hsl(210 40% 98%);
  --ink-band-muted: hsl(215 20% 66%);

  /* Semantik: Zustand, nie Dekoration (Produkt-Tokens) */
  --success: hsl(140 55% 30%);
  --warn:    hsl(33 70% 36%);
  --danger:  hsl(359 60% 50%);

  /* -- Schrift: EINE Familie. Keine Serif, keine Mono, keine Zweitschrift. --
     Hierarchie entsteht aus Groesse, Gewicht und Laufweite, nicht aus einem
     Familienwechsel. Gewichte: 400 Fliesstext, 500 Betonung, 600 Ueberschrift
     und Label. Ziffern richtet .tnum aus.                           */
  --font: 'Geist', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;

  /* ── Eine Groessenleiter. Keine Zwischenwerte, keine Halbpixel. ── */
  --t-1:  11px;   /* Label, Eyebrow, Badge */
  --t-2:  13px;   /* Meta, Quellenangabe, Fussnote */
  --t-3:  15px;   /* UI-Text: Nav, Button, Listen */
  --t-4:  17px;   /* Fliesstext */
  --t-5:  19px;   /* Lead, Karten-Titel */
  --t-6:  21px;   /* H3, Zitat */
  --t-7:  27px;   /* H2 statisch, Kennzahl klein */
  --t-8:  34px;   /* Kennzahl */
  --t-9:  44px;   /* Kennzahl gross */

  /* Vier Display-Kurven statt 45 Einzel-clamps */
  --d-hero: clamp(44px, 6.4vw, 72px);
  --d-1:    clamp(38px, 5.4vw, 58px);
  --d-2:    clamp(27px, 3.2vw, 34px);
  --d-3:    clamp(21px, 2.4vw, 27px);

  /* ── Form: zwei Radien, ein Pill, echte Kreise bleiben 50% ── */
  --r-sm:   6px;    /* Button, Chip, Input, Kleinteil */
  --r-md:   10px;   /* Karte, Panel, Menue, Bild */
  --r-pill: 999px;

  /* ── Laufweite: zwei enge Werte fuer Display, einer fuer Labels ── */
  --tr-tight: -0.02em;
  --tr-snug:  -0.01em;
  --tr-label: 0.1em;

  --focus-ring: 0 0 0 3px color-mix(in oklab, var(--accent), transparent 70%);
  --motion: 160ms cubic-bezier(0.2, 0, 0, 1);
  --container: 1080px;
  --nav-h: 62px;
}

/* ══ Basis ══ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; color-scheme: light; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font-family: var(--font); font-size: var(--t-4); line-height: 1.6;
  overflow-x: clip; -webkit-font-smoothing: antialiased;
}
h1, h2 { font-weight: 600; line-height: 1.12; letter-spacing: var(--tr-tight); margin: 0; text-wrap: balance; }
h3 { font-weight: 600; line-height: 1.25; margin: 0; text-wrap: balance; }
h4, h5 { margin: 0; line-height: 1.3; }
/* Geist fuehrt keine echte Kursive. Betonung laeuft ueber Gewicht, sonst
   stellt der Browser synthetisch schraeg - das ist die haessliche Variante. */
em, i, cite { font-style: normal; font-weight: 500; }
p { margin: 0; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration-thickness: 2px; }
img, svg { display: block; }
button { font: inherit; color: inherit; }
:focus-visible { outline: none; box-shadow: var(--focus-ring); border-radius: var(--r-sm); }
::selection { background: color-mix(in oklab, var(--accent), transparent 80%); }

/* Zweisprachige Ebene: html[lang] schaltet die sichtbare Sprache */
html[lang="en"] [lang="de"] { display: none !important; }
html[lang="de"] [lang="en"] { display: none !important; }

.container { max-width: var(--container); margin-inline: auto; padding-inline: 24px; }
.container-wide { max-width: 1240px; margin-inline: auto; padding-inline: 24px; }
.nowrap { white-space: nowrap; }

/* ══ Kleintext: genau drei Rollen, eine Familie ══
   .label  Versal-Kleinlabel ueber Sektionen, Karten, Spalten
   .meta   Quellenangabe, Attribution, Fussnote
   .tnum   Zahlenwert in Tabellen und Kennzahlen (spaltentreue Ziffern) */
.label {
  font: 600 var(--t-1)/1 var(--font);  letter-spacing: var(--tr-label); text-transform: uppercase; color: var(--muted);
}
.meta { font: 500 var(--t-2)/1.6 var(--font); color: var(--muted); }
.tnum { font-variant-numeric: tabular-nums; }
/* Ziffern bleiben spaltentreu. Ueberschriften behalten proportionale Ziffern,
   weil Tabellenziffern bei Displaygroessen zu breit laufen. */
body { font-variant-numeric: tabular-nums; }
h1, h2 { font-variant-numeric: normal; }

/* ══ Sektionen ══ */
section { scroll-margin-top: calc(var(--nav-h) + 12px); }
.section { padding-block: 88px; border-top: 1px solid var(--border); }
.section-tight { padding-block: 60px; }
.section-head { max-width: 760px; margin-bottom: 48px; }
.eyebrow {
  font: 600 var(--t-1)/1 var(--font);  letter-spacing: var(--tr-label); text-transform: uppercase;
  color: var(--muted); display: flex; align-items: baseline; gap: 12px; margin-bottom: 20px;
}
.eyebrow[data-n]:not([data-n=""])::before {
  content: attr(data-n); color: var(--accent); flex: none;
  padding-right: 10px; border-right: 1px solid var(--border);
}
h1 { font-size: var(--d-1); letter-spacing: var(--tr-tight); }
h2 { font-size: var(--d-2); letter-spacing: var(--tr-snug); }
h3 { font-size: var(--t-6); letter-spacing: var(--tr-snug); }
.lead { color: var(--muted); font-size: var(--t-5); margin-top: 16px; text-wrap: pretty; max-width: 62ch; }

/* ══ Buttons ══ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: var(--r-sm); padding: 12px 20px; font: 600 var(--t-3)/1.2 var(--font);
  cursor: pointer; border: 1px solid transparent; text-decoration: none;
  transition: background var(--motion), border-color var(--motion), translate var(--motion);
}
.btn:hover { text-decoration: none; }
.btn:active { translate: 0 1px; }
.btn-primary { background: var(--accent); color: var(--accent-on); }
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:active { background: var(--accent-active); }
.btn-secondary { background: transparent; color: var(--fg); border-color: var(--border); }
.btn-secondary:hover { border-color: var(--muted); }
.btn-ink { background: var(--fg); color: var(--surface); }
.btn-ink:hover { background: color-mix(in oklab, var(--fg), black 12%); }
.btn-paper { background: var(--ink-band-fg); color: var(--ink-band); }
.btn-paper:hover { background: #ffffff; }
.btn-ghost { background: transparent; color: var(--ink-band-fg); border-color: color-mix(in oklab, var(--ink-band-fg), transparent 60%); }
.btn-ghost:hover { border-color: color-mix(in oklab, var(--ink-band-fg), transparent 25%); }
.btn-lg { padding: 15px 26px; font-size: var(--t-4); border-radius: var(--r-md); }
.btn-sm { padding: 9px 14px; font-size: var(--t-3); }

/* ══ Globale Navigation (inline pro Seite, Verhalten via site.js) ══ */
.topnav {
  position: sticky; top: 0; z-index: 60; min-height: var(--nav-h);
  background: color-mix(in oklab, var(--bg), transparent 12%);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent; transition: border-color var(--motion);
}
.topnav.scrolled { border-bottom-color: var(--border); }
.topnav-inner { display: flex; align-items: center; gap: 22px; height: var(--nav-h); }
.brand { display: flex; align-items: center; gap: 10px; color: var(--fg); }
.brand:hover { text-decoration: none; }
.brand-mark { width: 26px; height: 26px; border-radius: var(--r-md); background: linear-gradient(135deg, var(--accent), var(--brand-2)); color: #fff; display: grid; place-items: center; flex: none; box-shadow: 0 1px 2px color-mix(in oklab, var(--accent), transparent 55%); }
.brand-mark svg { width: 15px; height: 15px; }
.brand-word { font-size: var(--t-5); font-weight: 500; letter-spacing: var(--tr-snug); }
.brand-word em { font-weight: 600; color: var(--accent); }
.brand .tag { font: 600 var(--t-1)/1 var(--font); color: var(--muted);  letter-spacing: var(--tr-label); text-transform: uppercase; }

.nav-links { display: flex; align-items: center; gap: 4px; margin-inline: auto 0; }
.nav-item { position: relative; }
.nav-link {
  display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: var(--t-3); font-weight: 500;
  padding: 8px 12px; border-radius: var(--r-sm); background: transparent; border: 0; cursor: pointer;
  transition: color var(--motion), background var(--motion);
}
.nav-link:hover, .nav-link[aria-expanded="true"] { color: var(--fg); background: color-mix(in oklab, var(--fg), transparent 95%); text-decoration: none; }
.nav-link .caret { width: 9px; height: 9px; transition: transform var(--motion); }
.nav-link[aria-expanded="true"] .caret { transform: rotate(180deg); }

.nav-menu {
  position: absolute; top: calc(100% + 8px); left: 0; min-width: 460px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-md);
  box-shadow: 0 1px 2px color-mix(in oklab, var(--fg), transparent 94%), 0 20px 48px color-mix(in oklab, var(--fg), transparent 88%);
  padding: 10px; display: grid; grid-template-columns: 1fr 1fr; gap: 4px;
  opacity: 0; visibility: hidden; translate: 0 -6px; transition: opacity var(--motion), translate var(--motion), visibility var(--motion);
}
.nav-item.open .nav-menu { opacity: 1; visibility: visible; translate: 0 0; }
.menu-link { display: block; padding: 12px 14px; border-radius: var(--r-md); color: var(--fg); transition: background var(--motion); }
.menu-link:hover { background: color-mix(in oklab, var(--accent), transparent 92%); text-decoration: none; }
.menu-link .mt { font-weight: 600; font-size: var(--t-3); display: flex; align-items: center; gap: 8px; }
.menu-link .md { color: var(--muted); font-size: var(--t-2); margin-top: 3px; line-height: 1.45; }
.menu-tag { font: 600 var(--t-1)/1 var(--font);  letter-spacing: var(--tr-label); text-transform: uppercase; color: var(--accent); border: 1px solid color-mix(in oklab, var(--accent), transparent 70%); border-radius: var(--r-pill); padding: 3px 6px; }

.nav-right { display: flex; align-items: center; gap: 10px; }
.lang-switch { display: inline-flex; border: 1px solid var(--border); border-radius: var(--r-pill); padding: 2px; background: var(--surface); }
.lang-btn { border: 0; background: transparent; color: var(--muted); cursor: pointer; font: 500 var(--t-2)/1 var(--font); padding: 6px 9px; border-radius: var(--r-pill); transition: background var(--motion), color var(--motion); }
.lang-btn.on { background: var(--fg); color: var(--surface); }
.nav-signin { color: var(--muted); font-size: var(--t-3); font-weight: 500; padding: 8px 10px; }
.nav-signin:hover { color: var(--fg); text-decoration: none; }
.nav-signin-m { display: none; }
.nav-burger { display: none; }

@media (max-width: 900px) {
  .nav-links { display: none; position: fixed; inset: var(--nav-h) 0 auto; flex-direction: column; align-items: stretch; gap: 2px;
    background: var(--surface); border-bottom: 1px solid var(--border); padding: 12px 16px 20px; margin: 0; box-shadow: 0 20px 40px color-mix(in oklab, var(--fg), transparent 90%); }
  .topnav.menu-open .nav-links { display: flex; }
  .nav-link { font-size: var(--t-4); padding: 12px; }
  .nav-menu { position: static; opacity: 1; visibility: visible; translate: 0; min-width: 0; grid-template-columns: 1fr; box-shadow: none; border: 0; padding: 0 0 0 12px; display: none; }
  .nav-item.open .nav-menu { display: grid; }
  .nav-signin { display: none; }
  .nav-signin-m { display: block; padding: 12px 14px; margin-top: 6px; border-top: 1px solid var(--border-soft); color: var(--fg); font-size: var(--t-3); font-weight: 500; }
  .nav-burger { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border: 1px solid var(--border); border-radius: var(--r-md); background: var(--surface); cursor: pointer; }
}

/* ══ Footer ══ */
.site-footer { border-top: 1px solid var(--border); background: var(--surface); padding-block: 56px 32px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(4, 1fr); gap: 40px; }
.footer-brand .brand { margin-bottom: 14px; }
.footer-blurb { color: var(--muted); font-size: var(--t-3); max-width: 34ch; text-wrap: pretty; }
.footer-badge { display: inline-flex; align-items: center; gap: 7px; margin-top: 18px; font: 500 var(--t-1)/1 var(--font); letter-spacing: normal; color: var(--muted); border: 1px solid var(--border); border-radius: var(--r-pill); padding: 7px 11px; }
.footer-badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--success); }
.footer-col h3 { font: 600 var(--t-1)/1 var(--font);  letter-spacing: var(--tr-label); text-transform: uppercase; color: var(--muted); margin-bottom: 16px; }
.footer-col a { display: block; color: var(--fg); font-size: var(--t-3); padding: 5px 0; }
.footer-col a:hover { color: var(--accent); text-decoration: none; }
.footer-bottom { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--border); color: var(--muted); font-size: var(--t-2); }
.footer-bottom .spacer { margin-inline: auto; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px 24px; } .footer-brand { grid-column: 1 / -1; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }

/* ══ Wiederkehrende Bausteine ══ */
.pill { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--border); background: var(--surface); border-radius: var(--r-pill); padding: 6px 14px; font-size: var(--t-2); font-weight: 500; color: var(--muted); }
.pill .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); flex: none; }
.badge { display: inline-flex; align-items: center; gap: 6px; font: 600 var(--t-1)/1 var(--font);  letter-spacing: var(--tr-label); text-transform: uppercase; border-radius: var(--r-pill); padding: 5px 9px; border: 1px solid var(--border); color: var(--muted); }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-md); padding: 26px; box-shadow: 0 1px 2px color-mix(in oklab, var(--fg), transparent 95%); }
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split-narrow { grid-template-columns: 0.9fr 1.1fr; }
@media (max-width: 900px) { .split, .split-narrow { grid-template-columns: 1fr; gap: 36px; } }

/* Kennzahl */
.stat .n { font-weight: 600; font-size: var(--d-1); letter-spacing: var(--tr-tight); font-variant-numeric: tabular-nums; }
.stat .l { font: 600 var(--t-1)/1 var(--font);  letter-spacing: var(--tr-label); text-transform: uppercase; color: var(--muted); margin-top: 6px; }
.stat .src { font-size: var(--t-2); color: var(--muted); margin-top: 10px; }

/* Spezifikations-/Feature-Liste mit Hairlines */
.spec { border-top: 1px solid var(--border); }
.spec-row { display: grid; grid-template-columns: auto 1fr; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--border-soft); }
.spec-row .k { font: 500 var(--t-2)/1.6 var(--font); color: var(--accent); letter-spacing: normal; min-width: 40px; }
.spec-row h3 { font-size: var(--t-4); font-weight: 600; line-height: 1.3; }
.spec-row p { color: var(--muted); font-size: var(--t-3); margin-top: 5px; text-wrap: pretty; }

/* Zitat */
.quote { font-size: var(--d-3); font-weight: 500; line-height: 1.32; letter-spacing: var(--tr-snug); text-wrap: pretty; }
.quote-attr { font: 500 var(--t-2)/1.6 var(--font); color: var(--muted); margin-top: 14px; letter-spacing: normal; }

/* Dunkles Tinte-Band */
.ink-band { background: var(--ink-band); color: var(--ink-band-fg); border: 0; }
.ink-band .eyebrow, .ink-band .lead { color: var(--ink-band-muted); }
.ink-band h2, .ink-band h3 { color: var(--ink-band-fg); }
.ink-band .card { background: color-mix(in oklab, var(--ink-band-fg), transparent 92%); border-color: color-mix(in oklab, var(--ink-band-fg), transparent 82%); }

/* Prüf-/Entwurfs-Hinweis */
.review-note { display: flex; gap: 10px; align-items: flex-start; background: color-mix(in oklab, var(--warn), transparent 88%); border: 1px solid color-mix(in oklab, var(--warn), transparent 55%); border-radius: var(--r-md); padding: 12px 14px; font-size: var(--t-2); color: var(--fg); }
.review-note .badge { border-color: color-mix(in oklab, var(--warn), transparent 40%); color: color-mix(in oklab, var(--warn), black 30%); flex: none; }

@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }

/* Schmale Screens: Wortmarke einzeilig, Demo-CTA verkürzt */
.cta-short { display: none; }
.brand-word { white-space: nowrap; }
@media (max-width: 480px) {
  .topnav .cta-full { display: none; }
  .topnav .cta-short { display: inline; }
  .topnav-inner { gap: 10px; padding-inline: 16px; }
  .nav-right { gap: 8px; }
}
/* Lange deutsche Komposita in großen Headlines umbrechen statt überlaufen */
@media (max-width: 480px) { h1, h2 { overflow-wrap: break-word; hyphens: auto; } }