/* ============================================================
   HOMEPAGE (Design System) — page-specific layout
   Pairs with design-system.css. Section structure mirrors the
   Claude Design handoff (ui_kits/website/sections.jsx + sections2.jsx).
   ============================================================ */

/* ---- Header ---- */
.ds-header {
  position: sticky; top: 0; z-index: var(--z-sticky);
  background: transparent; border-bottom: 1px solid transparent;
  transition: background var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
}
.ds-header.is-scrolled {
  background: color-mix(in oklab, var(--sand-50) 82%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}
.ds-header__inner { display: flex; align-items: center; gap: var(--space-6); height: 78px; }
.ds-header__logo { display: flex; align-items: center; }
.ds-header__logo img { height: 42px; width: auto; }
.ds-header__nav { margin-left: auto; display: flex; gap: var(--space-6); }
.ds-header__nav a { font-family: var(--font-body); font-size: var(--text-sm); font-weight: 500; color: var(--text-body); letter-spacing: 0.01em; }
.ds-header__nav a:hover { text-decoration: none; color: var(--text-accent); }

/* ---- Mobile burger + nav drawer ---- */
.ds-header__burger {
  display: none; margin-left: auto; flex-direction: column; justify-content: center; gap: 5px;
  width: 36px; height: 36px; padding: 0; background: none; border: none; cursor: pointer; flex-shrink: 0;
}
.ds-header__burger span { display: block; width: 22px; height: 2px; border-radius: 2px; background: var(--text-strong); transition: transform var(--dur-fast) var(--ease-out), opacity var(--dur-fast) var(--ease-out); }
.ds-header__burger.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.ds-header__burger.is-active span:nth-child(2) { opacity: 0; }
.ds-header__burger.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.ds-header__mobile-nav {
  display: none; flex-direction: column; background: var(--surface-card); border-bottom: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-md); padding: var(--space-2) var(--gutter) var(--space-5);
}
.ds-header__mobile-nav.is-open { display: flex; }
.ds-header__mobile-nav a {
  font-family: var(--font-body); font-size: var(--text-base); font-weight: 500; color: var(--text-body);
  padding: 14px 0; border-bottom: 1px solid var(--border-subtle);
}
.ds-header__mobile-nav a:last-child { border-bottom: none; }
.ds-header__mobile-nav a:hover { color: var(--text-accent); }

/* ---- Hero ---- */
.ds-hero { position: relative; padding-top: var(--space-10); padding-bottom: var(--space-10); }
.ds-hero__inner { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: var(--space-9); align-items: center; }
.ds-hero h1 {
  font-family: var(--font-display); font-weight: 800; font-size: clamp(2.6rem, 5vw, 4rem);
  line-height: 1.04; letter-spacing: var(--tracking-tight); margin: var(--space-4) 0;
}
.ds-hero h1 em { font-style: italic; font-weight: 600; color: var(--text-accent); }
.ds-hero__sub { font-family: var(--font-body); font-size: var(--text-md); line-height: 1.6; color: var(--text-body); max-width: 46ch; margin: 0 0 var(--space-7); }
.ds-hero__ctas { display: flex; gap: var(--space-3); flex-wrap: wrap; }
.ds-hero__stats { display: flex; gap: var(--space-8); margin-top: var(--space-9); align-items: stretch; }

.ds-hero__photo { position: relative; }
.ds-hero__photo-frame { position: relative; border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow-lg); aspect-ratio: 4 / 5; background: var(--navy-100); }
.ds-hero__photo-frame img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 25%; }
.ds-hero__badge {
  position: absolute; bottom: -22px; left: -22px; background: var(--surface-card); border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5); box-shadow: var(--shadow-lg); display: flex; align-items: center; gap: var(--space-4);
}
.ds-hero__badge-name { font-family: var(--font-display); font-size: var(--text-lg); font-weight: 700; color: var(--text-strong); line-height: 1; }

/* ---- Leistungen ---- */
.ds-leistungen { padding: var(--space-11) 0; background: var(--surface-card); border-top: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); }
.ds-leistungen__head { max-width: 52ch; margin-bottom: var(--space-8); }
.ds-leistungen__head h2 { font-family: var(--font-display); font-weight: 700; font-size: var(--text-2xl); letter-spacing: var(--tracking-snug); margin: var(--space-3) 0; }
.ds-leistungen__head p { font-family: var(--font-body); font-size: var(--text-md); color: var(--text-body); line-height: 1.6; }
.ds-leistungen__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }

.ds-card-icon {
  display: inline-flex; width: 52px; height: 52px; border-radius: var(--radius-md);
  background: var(--copper-50); color: var(--copper-700); align-items: center; justify-content: center;
}
.ds-card-icon--ai { background: var(--navy-800); color: var(--copper-200); }
.ds-leistung-card__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-5); }
.ds-leistung-card h3 { font-family: var(--font-display); font-weight: 700; font-size: var(--text-xl); margin: var(--space-2) 0 var(--space-3); }
.ds-leistung-card p { font-family: var(--font-body); font-size: var(--text-base); color: var(--text-body); line-height: 1.6; margin: 0; }

/* ---- Ablauf ---- */
.ds-ablauf { padding: var(--space-11) 0; }
.ds-ablauf__head { display: flex; align-items: flex-end; justify-content: space-between; flex-wrap: wrap; gap: var(--space-5); margin-bottom: var(--space-8); }
.ds-ablauf__head h2 { font-family: var(--font-display); font-weight: 700; font-size: var(--text-2xl); letter-spacing: var(--tracking-snug); margin: var(--space-3) 0 0; max-width: 48ch; }
.ds-ablauf__note { font-family: var(--font-body); font-size: var(--text-base); color: var(--text-muted); max-width: 32ch; margin: 0; }
.ds-ablauf__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5); }
.ds-step { position: relative; padding-top: var(--space-6); }
.ds-step__bar { position: absolute; top: 0; left: 0; right: 0; height: 3px; border-radius: 999px; background: var(--navy-200); }
.ds-step__bar--active { background: var(--copper-600); }
.ds-step__top { display: flex; align-items: center; gap: var(--space-3); margin-bottom: var(--space-4); }
.ds-step__n { font-family: var(--font-mono); font-size: var(--text-sm); color: var(--text-accent); font-weight: 600; }
.ds-step__icon { color: var(--navy-600); display: inline-flex; }
.ds-step h3 { font-family: var(--font-display); font-weight: 700; font-size: var(--text-lg); margin: 0 0 var(--space-2); }
.ds-step p { font-family: var(--font-body); font-size: var(--text-sm); color: var(--text-body); line-height: 1.6; margin: 0; }

/* ---- KI Callout ---- */
.ds-ki { padding: var(--space-10) 0; }
.ds-ki__box { position: relative; overflow: hidden; background: var(--navy-800); border-radius: var(--radius-2xl); padding: var(--space-10) var(--space-9); }
.ds-ki__mark { position: absolute; top: 24px; right: 28px; opacity: 0.5; z-index: 0; }
.ds-ki__mark .layer-mark span:nth-child(1), .ds-ki__mark .layer-mark span:nth-child(3) { background: var(--navy-600); }
.ds-ki__mark .layer-mark span:nth-child(2) { background: var(--copper-500); }
.ds-ki__grid { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-8); align-items: center; }
.ds-ki__grid h2 { font-family: var(--font-display); font-weight: 700; font-size: var(--text-2xl); color: var(--sand-50); letter-spacing: var(--tracking-snug); margin: var(--space-4) 0; }
.ds-ki__grid p { font-family: var(--font-body); font-size: var(--text-md); color: var(--navy-200); line-height: 1.6; margin: 0; }
.ds-ki__points { display: flex; flex-direction: column; gap: var(--space-3); }
.ds-ki__point {
  display: flex; align-items: center; gap: var(--space-3); padding: var(--space-4) var(--space-5);
  background: color-mix(in oklab, var(--navy-700) 60%, transparent); border: 1px solid var(--navy-600); border-radius: var(--radius-md);
}
.ds-ki__point .icon { color: var(--copper-300); display: inline-flex; }
.ds-ki__point span.txt { font-family: var(--font-body); font-size: var(--text-base); color: var(--sand-100); }

/* ---- Divider (layer variant) ---- */
.divider-layer { display: flex; align-items: center; gap: var(--space-4); margin: var(--space-7) 0; }
.divider-layer__line { flex: 1; height: 1px; background: var(--divider); }
.divider-layer .layer-mark { width: 22px; gap: 3px; }
.divider-layer .layer-mark span { height: 2.5px; }

/* ---- Kontakt ---- */
.ds-kontakt { padding: var(--space-11) 0; background: var(--surface-card); border-top: 1px solid var(--border-subtle); }
.ds-kontakt__grid {
  display: grid; grid-template-columns: 1fr 1fr; grid-template-areas: "intro form" "meta form";
  gap: var(--space-9); align-items: start;
}
.ds-kontakt__intro { grid-area: intro; }
.ds-kontakt__grid > .card-ds { grid-area: form; }
.ds-kontakt__meta { grid-area: meta; }
.ds-kontakt__grid h2 { font-family: var(--font-display); font-weight: 700; font-size: var(--text-2xl); letter-spacing: var(--tracking-snug); margin: var(--space-3) 0 var(--space-4); }
.ds-kontakt__grid p { font-family: var(--font-body); font-size: var(--text-md); color: var(--text-body); line-height: 1.6; max-width: 40ch; }
.ds-kontakt__meta { display: flex; flex-direction: column; gap: var(--space-4); }
.ds-kontakt__meta-item { display: flex; align-items: center; gap: var(--space-3); color: var(--text-body); }
.ds-kontakt__meta-item .icon { color: var(--text-accent); display: inline-flex; }
.ds-kontakt__meta-item span.txt { font-family: var(--font-body); font-size: var(--text-base); }

.ds-form { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.ds-form .field-full { grid-column: 1 / -1; }
.ds-form__submit-row { grid-column: 1 / -1; display: flex; justify-content: flex-end; margin-top: var(--space-1); }

.ds-success { text-align: center; padding: var(--space-7) 0; }
.ds-success__icon {
  display: inline-flex; width: 56px; height: 56px; border-radius: 999px; background: var(--success-100);
  color: var(--success-700); align-items: center; justify-content: center; margin-bottom: var(--space-4);
}
.ds-success h3 { font-family: var(--font-display); font-size: var(--text-xl); margin: 0 0 var(--space-2); }
.ds-success p { font-family: var(--font-body); color: var(--text-muted); margin: 0; }
.ds-success .btn-ds--link { margin-top: var(--space-5); }
.is-hidden { display: none !important; }

/* ---- Footer ---- */
.ds-footer { background: var(--navy-900); color: var(--navy-200); padding: var(--space-9) 0 var(--space-7); }
.ds-footer__top { display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--space-7); }
.ds-footer__about { max-width: 360px; }
.ds-footer__about img { height: 44px; width: auto; margin-bottom: var(--space-4); }
.ds-footer__about p { font-family: var(--font-body); font-size: var(--text-sm); color: var(--navy-300); line-height: 1.6; margin: 0; }
.ds-footer__cols { display: flex; gap: var(--space-9); }
.ds-footer__col-head { font-family: var(--font-eyebrow); font-size: var(--text-2xs); letter-spacing: var(--tracking-eyebrow); text-transform: uppercase; color: var(--copper-300); margin-bottom: var(--space-4); }
.ds-footer__col-links { display: flex; flex-direction: column; gap: var(--space-3); }
.ds-footer__col-links a { font-family: var(--font-body); font-size: var(--text-sm); color: var(--navy-200); }
.ds-footer__col-links a:hover { color: var(--copper-300); }
.ds-footer__bottom { margin-top: var(--space-8); padding-top: var(--space-5); border-top: 1px solid var(--navy-700); display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--space-3); }
.ds-footer__bottom span.copy { font-family: var(--font-body); font-size: var(--text-xs); color: var(--navy-400); }
.ds-footer__legal { display: flex; gap: var(--space-5); }
.ds-footer__legal a { font-family: var(--font-body); font-size: var(--text-xs); color: var(--navy-400); }

/* ---- Responsive ---- */
@media (max-width: 920px) {
  .ds-hero__inner { grid-template-columns: 1fr; }
  .ds-hero__photo { order: -1; }
  .ds-kontakt__grid { grid-template-columns: 1fr; grid-template-areas: "intro" "form" "meta"; }
  .ds-leistungen__grid, .ds-ablauf__grid { grid-template-columns: repeat(2, 1fr); }
  .ds-ki__grid { grid-template-columns: 1fr; }
  .ds-header__nav { display: none; }
  .ds-header__burger { display: flex; }
  .ds-header__inner .btn-ds--sm { padding: 8px 14px; font-size: var(--text-xs); }
}
@media (max-width: 600px) {
  .ds-leistungen__grid, .ds-ablauf__grid, .ds-form { grid-template-columns: 1fr; }
  .ds-form .field-full { grid-column: auto; }
  .ds-footer__top { flex-direction: column; }
  .ds-footer__cols { flex-wrap: wrap; gap: var(--space-7); }

  .ds-hero__ctas { flex-direction: column; align-items: stretch; gap: var(--space-3); }
  .ds-hero__ctas .btn-ds { width: 100%; }

  .ds-hero__stats { flex-wrap: nowrap; justify-content: space-between; gap: var(--space-3); }
  .ds-hero__stats .stat-ds { text-align: center; }
  .ds-hero__stats .stat-ds__value { font-size: clamp(1.5rem, 7vw, 2rem); justify-content: center; }
  .ds-hero__stats .stat-ds__label { font-size: 0.625rem; letter-spacing: 0.04em; }
  .ds-hero__photo-frame { aspect-ratio: 1 / 1; }
  .ds-hero__badge { left: 14px; right: 14px; bottom: -16px; padding: var(--space-3) var(--space-4); justify-content: center; }
  .ds-hero__badge-name { font-size: var(--text-base); text-align: center; }
}