/* ============================================================
   steffenweiler.de · Case Study / Use Case Seiten
   Baut auf brand.css + style.css auf. Nur zusätzliche Komponenten.
   ============================================================ */

/* ---------- Breadcrumb ---------- */
.cs-breadcrumb {
  font-family: var(--wcg-font-mono); font-size: 11px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--wcg-muted); margin-bottom: 28px;
}
.cs-breadcrumb a { color: var(--wcg-muted); text-decoration: none; }
.cs-breadcrumb a:hover { color: var(--wcg-champagne-deep); }
.cs-breadcrumb span { margin: 0 8px; opacity: 0.5; }

/* ---------- Hero ---------- */
.cs-hero { padding-top: clamp(7rem, 12vw, 11rem); padding-bottom: 0; }
.cs-hero-grid {
  display: grid; grid-template-columns: 1.35fr 0.9fr; gap: 56px; align-items: start;
}
.cs-hero-logo { height: 40px; max-width: 190px; object-fit: contain; margin-bottom: 28px; opacity: 0.9; }
.cs-hero .headline { margin-bottom: 22px; }
.cs-hero .lead { margin-bottom: 0; }

/* ---------- Snapshot-Box ---------- */
.cs-snapshot {
  border: 1px solid var(--wcg-line); border-top: 3px solid var(--wcg-champagne);
  background: #fff; padding: 30px 30px 12px;
}
.cs-snapshot-title {
  font-family: var(--wcg-font-mono); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--wcg-champagne-deep); margin-bottom: 20px;
}
.cs-snapshot-row {
  display: flex; justify-content: space-between; gap: 18px;
  padding: 13px 0; border-bottom: 1px solid var(--wcg-line);
}
.cs-snapshot-row:last-child { border-bottom: none; }
.cs-snapshot-key {
  font-family: var(--wcg-font-mono); font-size: 10.5px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--wcg-muted); flex-shrink: 0; padding-top: 2px;
}
.cs-snapshot-val {
  font-family: var(--wcg-font-sans); font-weight: 500; font-size: 14px;
  color: var(--wcg-ink); text-align: right; line-height: 1.4;
}

/* ---------- Kennzahlen-Reihe ---------- */
.cs-metrics { border-top: 1px solid var(--wcg-line); border-bottom: 1px solid var(--wcg-line); }
.cs-metrics .container { padding-top: 0; padding-bottom: 0; }
.cs-metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.cs-metric { padding: 40px 28px; border-right: 1px solid var(--wcg-line); }
.cs-metric:last-child { border-right: none; }
.cs-metric-value {
  font-family: var(--wcg-font-serif); font-weight: 400; font-size: clamp(30px, 3.4vw, 44px);
  line-height: 1; letter-spacing: -0.02em; color: var(--wcg-ink);
  font-variant-numeric: tabular-nums lining-nums; margin-bottom: 12px;
}
.cs-metric-value em { font-style: normal; color: var(--wcg-champagne-deep); }
.cs-metric-label {
  font-family: var(--wcg-font-mono); font-size: 11px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--wcg-muted); line-height: 1.45;
}

/* ---------- Story-Sections (Challenge / Lösung / Ergebnis) ---------- */
.cs-block { padding: 96px 0; border-bottom: 1px solid var(--wcg-line); }
.cs-block:last-of-type { border-bottom: none; }
.cs-block-grid { display: grid; grid-template-columns: 260px 1fr; gap: 56px; align-items: start; }
.cs-block-label {
  font-family: var(--wcg-font-mono); font-weight: 500; font-size: 12px;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--wcg-champagne-deep);
  position: sticky; top: 120px;
}
.cs-block-label .cs-step { display: block; font-size: 40px; font-family: var(--wcg-font-serif); color: var(--wcg-line); letter-spacing: 0; margin-bottom: 8px; }
.cs-block h2 {
  font-family: var(--wcg-font-serif); font-weight: 300; font-size: clamp(26px, 3vw, 38px);
  line-height: 1.1; letter-spacing: -0.02em; color: var(--wcg-ink); margin-bottom: 24px;
}
.cs-block h2 em { font-style: italic; color: var(--wcg-champagne-deep); font-weight: 400; }
.cs-block p {
  font-family: var(--wcg-font-sans); font-weight: 300; font-size: 18px; line-height: 1.68;
  color: var(--wcg-ink-soft); margin-bottom: 20px; max-width: 66ch;
}
.cs-block p:last-child { margin-bottom: 0; }

/* Ergebnis-Liste */
.cs-results-list { list-style: none; margin: 8px 0 0; padding: 0; }
.cs-results-list li {
  position: relative; padding: 18px 0 18px 40px; border-bottom: 1px solid var(--wcg-line);
  font-family: var(--wcg-font-sans); font-weight: 400; font-size: 17px; line-height: 1.5;
  color: var(--wcg-ink); max-width: 68ch;
}
.cs-results-list li:last-child { border-bottom: none; }
.cs-results-list li::before {
  content: "✓"; position: absolute; left: 0; top: 17px;
  width: 24px; height: 24px; border-radius: 999px;
  background: var(--wcg-champagne); color: var(--wcg-ink);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700;
}
.cs-results-list li strong { font-weight: 600; }

/* ---------- Video-Block ---------- */
.cs-video-section { background: var(--wcg-bone-warm); }
.cs-video-head { text-align: center; margin-bottom: 44px; }
.cs-video-wrap {
  position: relative; aspect-ratio: 16 / 9; max-width: 960px; margin: 0 auto;
  overflow: hidden; background: var(--wcg-ink-soft); cursor: pointer;
  border-radius: var(--wcg-r-md); box-shadow: var(--wcg-shadow-soft);
}
.cs-video-wrap .case-video-thumb { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease, filter .3s ease; }
.cs-video-wrap:hover .case-video-thumb { transform: scale(1.03); filter: brightness(0.85); }
.cs-video-wrap .case-video-play {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 84px; height: 84px; border-radius: 999px; background: rgba(245,241,234,0.95);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 20px 40px -10px rgba(26,29,36,0.5); transition: transform .25s ease, background .25s ease;
}
.cs-video-wrap:hover .case-video-play { transform: translate(-50%,-50%) scale(1.08); background: var(--wcg-champagne); }
.cs-video-wrap .case-video-play svg { width: 28px; height: 28px; fill: var(--wcg-ink); margin-left: 4px; }

/* ---------- Pull-Quote (dunkel) ---------- */
.cs-pullquote { background: var(--wcg-ink); color: var(--wcg-bone); text-align: center; }
.cs-pullquote blockquote {
  font-family: var(--wcg-font-serif); font-weight: 300; font-style: italic;
  font-size: clamp(24px, 3vw, 36px); line-height: 1.3; letter-spacing: -0.015em;
  color: var(--wcg-bone); max-width: 20ch; max-width: 900px; margin: 0 auto 34px;
}
.cs-pullquote blockquote::before { content: "\201C"; color: var(--wcg-champagne); }
.cs-pullquote blockquote::after { content: "\201D"; color: var(--wcg-champagne); }
.cs-pullquote-attr { display: flex; align-items: center; justify-content: center; gap: 16px; }
.cs-pullquote-attr img { height: 34px; max-width: 100px; object-fit: contain; opacity: 0.85; }
.cs-pullquote-name { font-family: var(--wcg-font-sans); font-weight: 600; font-size: 15px; color: var(--wcg-bone); }
.cs-pullquote-role { font-family: var(--wcg-font-mono); font-size: 11px; letter-spacing: 0.06em; color: var(--wcg-champagne); }
.cs-pullquote-meta { text-align: left; }

/* ---------- Zurück / weitere Cases ---------- */
.cs-back { text-align: center; padding-top: 8px; }
.cs-back a {
  font-family: var(--wcg-font-mono); font-size: 12px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--wcg-champagne-deep); text-decoration: none;
}
.cs-back a:hover { color: var(--wcg-ink); }

/* ---------- Responsive ---------- */
@media (max-width: 940px) {
  .cs-hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .cs-metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .cs-metric:nth-child(2) { border-right: none; }
  .cs-metric:nth-child(1), .cs-metric:nth-child(2) { border-bottom: 1px solid var(--wcg-line); }
  .cs-block-grid { grid-template-columns: 1fr; gap: 20px; }
  .cs-block-label { position: static; }
  .cs-block-label .cs-step { display: inline-block; font-size: 24px; margin: 0 12px 0 0; vertical-align: middle; }
  .cs-block { padding: 64px 0; }
}
@media (max-width: 480px) {
  .cs-metrics-grid { grid-template-columns: 1fr; }
  .cs-metric { border-right: none; border-bottom: 1px solid var(--wcg-line); }
  .cs-metric:last-child { border-bottom: none; }
}