:root {
  --bg: #0a0b0d;
  --bg-alt: #111315;
  --card: #1a1c1f;
  --card-hover: #202225;
  --border: rgba(255, 255, 255, 0.08);
  --text: #eceeef;
  --text-muted: #9aa0a6;
  --accent: #7fa79c;
  --accent-strong: #a3c4bb;
  --success: #7fa77f;
  --radius: 14px;
  --wrap: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

img, svg { display: block; max-width: 100%; }

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #0a0b0d;
  padding: 10px 16px;
  border-radius: 0 0 8px 0;
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(10, 11, 13, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
}
.brand:hover { text-decoration: none; }
.brand-mark { width: 26px; height: 26px; color: var(--accent); }
.brand-sub { color: var(--text-muted); font-weight: 400; margin-left: 4px; }

.main-nav { display: flex; gap: 28px; }
.main-nav a {
  color: var(--text-muted);
  font-size: 14.5px;
  font-weight: 500;
}
.main-nav a:hover { color: var(--text); text-decoration: none; }
.main-nav a.active { color: var(--accent-strong); }

/* Hero */
.hero {
  position: relative;
  padding: 120px 0 90px;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 900px 500px at 15% -10%, rgba(127, 167, 156, 0.14), transparent 60%),
    radial-gradient(ellipse 700px 500px at 100% 0%, rgba(255, 255, 255, 0.05), transparent 55%);
  z-index: 0;
}

.hero-inner { position: relative; z-index: 1; max-width: 760px; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--accent-strong);
  margin: 0 0 14px;
}

h1 {
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.15;
  margin: 0 0 20px;
  letter-spacing: -0.01em;
}

.hero-lead {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 0 32px;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  padding: 13px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
}
.btn:hover { text-decoration: none; }

.btn-primary { background: var(--accent); color: #0a0b0d; }
.btn-primary:hover { background: var(--accent-strong); }

.btn-ghost { border-color: var(--border); color: var(--text); }
.btn-ghost:hover { background: var(--card); }

/* Sections */
.section { padding: 84px 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

h2 {
  font-size: clamp(26px, 3.4vw, 36px);
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}

.section-lead {
  color: var(--text-muted);
  max-width: 680px;
  font-size: 16.5px;
  margin: 0 0 8px;
}

.fact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 40px;
}
.fact {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  text-align: center;
}
.fact strong { display: block; font-size: 26px; color: var(--accent-strong); }
.fact span { color: var(--text-muted); font-size: 13.5px; }

/* Video grid: 3 nebeneinander */
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 44px;
}

.video-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.video-card:hover { border-color: rgba(255, 255, 255, 0.16); transform: translateY(-2px); }

.video-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background:
    repeating-linear-gradient(135deg, rgba(255,255,255,0.03) 0 2px, transparent 2px 14px),
    linear-gradient(160deg, #23272a, #16181a);
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.play-btn {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(10, 11, 13, 0.55);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
}
.play-btn:hover { background: var(--accent); color: #0a0b0d; transform: scale(1.06); }
.play-btn svg { width: 24px; height: 24px; margin-left: 3px; }

.video-meta { padding: 18px 18px 20px; }
.video-meta h3 { font-size: 16.5px; margin: 8px 0 8px; line-height: 1.35; }
.video-meta p { color: var(--text-muted); font-size: 14px; margin: 0 0 10px; }
.video-meta time { color: var(--text-muted); font-size: 12.5px; }

.video-tag {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-strong);
  background: rgba(127, 167, 156, 0.12);
  border: 1px solid rgba(127, 167, 156, 0.25);
  border-radius: 999px;
  padding: 4px 10px;
}
.video-tag-success { color: var(--success); background: rgba(127, 167, 127, 0.12); border-color: rgba(127, 167, 127, 0.25); }

/* Timeline */
.timeline {
  list-style: none;
  margin: 44px 0 0;
  padding: 0;
  border-left: 2px solid var(--border);
  max-width: 700px;
}
.timeline li {
  position: relative;
  padding: 0 0 32px 28px;
}
.timeline li::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
}
.timeline time { display: block; font-size: 12.5px; color: var(--accent-strong); font-weight: 600; margin-bottom: 4px; }
.timeline h3 { margin: 0 0 6px; font-size: 17px; }
.timeline p { margin: 0; color: var(--text-muted); font-size: 14.5px; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 32px 0; }
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--text-muted);
  font-size: 13.5px;
}
.footer-nav { display: flex; gap: 20px; }
.footer-nav a { color: var(--text-muted); }

/* Responsive */
@media (max-width: 900px) {
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .fact-grid { grid-template-columns: repeat(2, 1fr); }
  .main-nav { display: none; }
}

@media (max-width: 560px) {
  .video-grid { grid-template-columns: 1fr; }
  .hero { padding: 90px 0 60px; }
  .section { padding: 60px 0; }
}