/* KI-Koffer Brand-CSS — gemeinsam für alle Unterseiten
   Referenz: index.html (homepage hat dieselben Styles inline) */

:root {
  --koffer-orange: #d49a2a;
  --koffer-orange-deep: #a06a14;
  --koffer-orange-bright: #e6a02b;
  --workshop-black: #14110c;
  --workshop-charcoal: #221d17;
  --workshop-graphite: #2d2620;
  --warm-white: #f5f1e8;
  --hairline: rgba(245,241,232,0.08);
  --hairline-strong: rgba(245,241,232,0.16);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--workshop-black);
  color: var(--warm-white);
  font-size: 16px; line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

/* === NAV === */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 18px 32px;
  display: flex; align-items: center; justify-content: center; gap: 32px;
  background: linear-gradient(to bottom, rgba(20,17,12,0.95), rgba(20,17,12,0.7));
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--hairline);
}
.nav-links { display: flex; gap: 28px; font-size: 14px; font-weight: 500; justify-content: center; align-items: center; }
.nav-links a { opacity: 0.78; transition: opacity 0.2s, color 0.2s; }
.nav-links a:hover { opacity: 1; color: var(--koffer-orange-bright); }
.nav-links a.active { color: var(--koffer-orange-bright); opacity: 1; }
.nav-cta {
  padding: 10px 18px; background: var(--koffer-orange);
  color: var(--workshop-black); font-weight: 700;
  border-radius: 8px; font-size: 14px; transition: all 0.2s;
}
.nav-cta:hover { background: var(--koffer-orange-bright); transform: translateY(-1px); }
@media (max-width: 900px) { .nav-links { display: none; } .nav { padding: 12px 16px; } }

/* === SECTION-HELPER === */
.section { position: relative; padding: 120px 32px; z-index: 10; }
.section-tight { padding: 80px 32px; }
.container { max-width: 1280px; margin: 0 auto; }
.container-narrow { max-width: 880px; margin: 0 auto; }
.section-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: 'JetBrains Mono', monospace; font-size: 12px;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--koffer-orange-bright); margin-bottom: 16px;
}
.section-eyebrow-bar { width: 24px; height: 1px; background: var(--koffer-orange); }
.section-title {
  font-family: 'Archivo Black', sans-serif;
  font-size: clamp(32px, 4.5vw, 56px); line-height: 1.0;
  letter-spacing: -0.02em; margin-bottom: 20px; max-width: 900px;
}
.section-sub { font-size: 18px; color: rgba(245,241,232,0.7); max-width: 720px; line-height: 1.55; }

/* === BUTTONS === */
.btn-primary {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 28px; background: var(--koffer-orange);
  color: var(--workshop-black); font-weight: 700; font-size: 15px;
  border-radius: 10px; transition: all 0.2s;
}
.btn-primary:hover { background: var(--koffer-orange-bright); transform: translateY(-2px); box-shadow: 0 12px 32px rgba(200,134,31,0.3); }
.btn-primary:active { transform: translateY(1px) scale(0.98); filter: brightness(0.9); box-shadow: inset 0 3px 6px rgba(0,0,0,0.4); transition: all 0.06s ease; }
.btn-secondary {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 28px; background: transparent;
  color: var(--warm-white); font-weight: 600; font-size: 15px;
  border-radius: 10px; border: 1px solid var(--hairline-strong); transition: all 0.2s;
}
.btn-secondary:hover { border-color: var(--warm-white); background: rgba(245,241,232,0.04); }
.btn-secondary:active { transform: translateY(1px) scale(0.98); background: rgba(245,241,232,0.08); transition: all 0.06s ease; }

/* === FAQ-Komponente (auf FAQ-Seiten + ggf. Unterseiten) === */
.faq-list { max-width: 880px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--hairline-strong); padding: 24px 0; }
.faq-q { display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-family: 'Archivo Black', sans-serif; font-size: 18px; user-select: none; }
.faq-toggle {
  width: 28px; height: 28px; border-radius: 50%;
  background: rgba(200,134,31,0.12); border: 1px solid rgba(200,134,31,0.3);
  display: grid; place-items: center; color: var(--koffer-orange-bright);
  flex-shrink: 0; margin-left: 16px; transition: transform 0.3s;
}
.faq-item.open .faq-toggle { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s; color: rgba(245,241,232,0.7); line-height: 1.6; }
.faq-item.open .faq-a { max-height: 600px; padding-top: 16px; }

/* === FOOTER === */
.footer { background: var(--workshop-black); border-top: 1px solid var(--hairline); padding: 80px 32px 32px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 60px; max-width: 1280px; margin-left: auto; margin-right: auto; }
.footer-brand { font-size: 14px; color: rgba(245,241,232,0.6); line-height: 1.6; max-width: 320px; }
.footer-col-title { font-family: 'JetBrains Mono', monospace; font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--koffer-orange); margin-bottom: 20px; }
.footer-links { display: flex; flex-direction: column; gap: 12px; font-size: 14px; }
.footer-links a { color: rgba(245,241,232,0.7); transition: color 0.2s; }
.footer-links a:hover { color: var(--warm-white); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 32px; border-top: 1px solid var(--hairline);
  font-size: 13px; color: rgba(245,241,232,0.5);
  flex-wrap: wrap; gap: 16px;
  max-width: 1280px; margin-left: auto; margin-right: auto;
}
.footer-bottom-links { display: flex; gap: 24px; flex-wrap: wrap; }
@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-brand { grid-column: 1/-1; }
}