@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=DM+Sans:wght@300;400;500;600&display=swap');

:root {
  --red: #E8312A;
  --yellow: #F5C518;
  --blue: #1A5EB8;
  --green: #2E8B57;
  --dark: #111112;
  --card-bg: #1A1A1C;
  --text: #E8E8E8;
  --muted: #888;
  --border: rgba(255,255,255,0.07);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--dark);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ─── NAV ─── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(17,17,18,0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2.5rem;
  height: 56px;
}

.nav-logo {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.7rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.logo-img {
  height: 40px;
  width: 40px;
  display: block;
}

.nav-logo .dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--red);
  display: inline-block;
  animation: pulse 2.2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.35; transform: scale(0.8); }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active { color: var(--text); }

/* ─── GitHub nav link ─── */
.nav-github {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid var(--border) !important;
  padding: 0.3rem 0.75rem !important;
  border-radius: 4px !important;
  color: var(--muted) !important;
  text-transform: uppercase !important;
  font-size: 0.75rem !important;
  transition: border-color 0.2s, color 0.2s, background 0.2s !important;
  letter-spacing: 0.05em !important;
}

.nav-github:hover {
  border-color: rgba(255,255,255,0.2) !important;
  color: var(--text) !important;
  background: rgba(255,255,255,0.04);
}

.nav-github svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
  flex-shrink: 0;
}

/* ─── HAMBURGER BUTTON ─── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  padding: 8px;
  flex-shrink: 0;
}

.nav-hamburger span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--muted);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease, background 0.2s;
}

.nav-hamburger:hover span { background: var(--text); }

.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ─── MOBILE NAV DRAWER ─── */
.nav-drawer {
  display: none;
  position: fixed;
  top: 56px;
  left: 0;
  right: 0;
  background: #111112;
  border-bottom: 1px solid var(--border);
  z-index: 9999;
  padding: 1.5rem 1.4rem 2rem;
  flex-direction: column;
  gap: 0.25rem;
}

.nav-drawer.open {
  display: flex;
}

.nav-drawer a {
  color: var(--muted);
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  transition: color 0.2s;
}

.nav-drawer a:last-child { border-bottom: none; }
.nav-drawer a:hover,
.nav-drawer a.active { color: var(--text); }

.nav-drawer .drawer-github {
  margin-top: 0.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  border-bottom: none;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

.nav-drawer .drawer-github svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* ─── DIVIDER ─── */
.divider {
  height: 1px;
  background: var(--border);
  max-width: 1100px;
  margin: 0 auto;
}

/* ─── SECTIONS ─── */
.section {
  padding: 6rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.section-label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 0.75rem;
}

h2 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  letter-spacing: 0.03em;
  line-height: 1;
  margin-bottom: 1.5rem;
}

/* ─── BUTTON ─── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--red);
  color: white;
  text-decoration: none;
  padding: 0.78rem 1.9rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.88rem;
  letter-spacing: 0.03em;
  transition: background 0.2s, transform 0.15s;
}
.btn-primary:hover { background: #c72a23; transform: translateY(-2px); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid var(--border);
  color: var(--muted);
  text-decoration: none;
  padding: 0.78rem 1.9rem;
  border-radius: 4px;
  font-weight: 500;
  font-size: 0.88rem;
  letter-spacing: 0.03em;
  transition: border-color 0.2s, color 0.2s;
}
.btn-ghost:hover { border-color: rgba(255,255,255,0.2); color: var(--text); }

/* ─── FOOTER ─── */
footer {
  border-top: 1px solid var(--border);
  padding: 2.2rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1100px;
  margin: 0 auto;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-left {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.15rem;
  letter-spacing: 0.07em;
  color: var(--muted);
}

.footer-right {
  font-size: 0.78rem;
  color: var(--muted);
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
}

footer a { color: var(--muted); text-decoration: none; transition: color 0.2s; }
footer a:hover { color: var(--text); }

/* ─── CARD GRID (shared) ─── */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.info-card {
  background: var(--card-bg);
  padding: 2rem;
  transition: background 0.18s;
}
.info-card:hover { background: #1f1f22; }

.info-card h3 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.25rem;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.info-card p,
.info-card ul {
  font-size: 0.87rem;
  color: #999;
  line-height: 1.75;
}
.info-card ul { padding-left: 1.1rem; }
.info-card ul li { margin-bottom: 0.15rem; }

/* ─── FADE IN ─── */
.fade-in {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-in.visible { opacity: 1; transform: none; }

/* ═══════════════════════════════════════════════
   RESPONSIVE BREAKPOINTS
   ═══════════════════════════════════════════════ */

/* ─── Tablet (≤ 900px) ─── */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  nav { padding: 0 1.2rem; }

  .section { padding: 4rem 1.4rem; }
  footer { padding: 2rem 1.4rem; }
}

/* ─── Mobile (≤ 600px) ─── */
@media (max-width: 600px) {
  .section { padding: 3rem 1rem; }

  h2 {
    font-size: clamp(2rem, 8vw, 2.8rem);
    margin-bottom: 1rem;
  }

  footer {
    padding: 1.5rem 1rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
  }

  .footer-right {
    gap: 1rem;
  }

  .btn-primary,
  .btn-ghost {
    padding: 0.7rem 1.4rem;
    font-size: 0.84rem;
    width: 100%;
    justify-content: center;
  }

  .divider {
    margin: 0 1rem;
  }

  /* Regelwerk mobile fixes */
  table {
    min-width: 100%;
  }

  .stack-table-wrap {
    padding: 1.2rem;
    margin: 1.5rem 0;
  }

  .action-strip {
    grid-template-columns: 1fr;
  }

  .action-item {
    padding: 1.1rem 1rem;
    gap: 0.8rem;
  }

  .action-item img {
    height: 50px;
  }

  .material-grid {
    grid-template-columns: 1fr;
  }
}