.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.section { padding: 72px 0; }

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 15, 20, 0.7);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand { font-weight: 700; letter-spacing: 0.2px; }
nav ul { display: flex; gap: 18px; list-style: none; padding: 0; margin: 0; }
nav a { color: var(--text); padding: 8px 10px; border-radius: 8px; }
nav a:hover { background: var(--panel); }

/* Mobile nav */
.nav-toggle { display: none; background: transparent; border: 1px solid var(--border); color: var(--text); padding: 8px 10px; border-radius: 8px; }
@media (max-width: 720px) {
  nav ul { display: none; }
  nav[aria-expanded="true"] ul { display: flex; flex-direction: column; gap: 8px; padding: 12px 0; }
  .nav { align-items: flex-start; padding-top: 12px; padding-bottom: 12px; }
  .nav-toggle { display: inline-flex; align-items: center; gap: 8px; }
}

/* Hero */
.hero { display: grid; grid-template-columns: 1.2fr 1fr; gap: 32px; align-items: center; }
.hero h1 { font-size: 44px; margin-bottom: 12px; }
.hero p { font-size: 18px; color: var(--muted); }
.cta { margin-top: 18px; display: inline-flex; gap: 12px; align-items: center; }

/* Cards layout */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 920px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid { grid-template-columns: 1fr; } }

/* Timeline */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 32px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}
.timeline-item {
  position: relative;
  margin-bottom: 32px;
}
.timeline-marker {
  position: absolute;
  left: -31px;
  top: 8px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--brand);
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 2px var(--border);
}
.timeline-content {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-left: 16px;
}
.timeline-header {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: baseline;
  margin-bottom: 8px;
}
.timeline-header h3 {
  margin: 0;
  color: var(--text);
  font-size: 18px;
}
.timeline-company {
  color: var(--brand);
  font-weight: 500;
  font-size: 14px;
}
.timeline-date {
  color: var(--muted);
  font-size: 14px;
  margin-left: auto;
}

@media (max-width: 768px) {
  .timeline {
    padding-left: 24px;
  }
  .timeline-marker {
    left: -20px;
    width: 12px;
    height: 12px;
  }
  .timeline-content {
    margin-left: 12px;
    padding: 16px;
  }
  .timeline-header {
    flex-direction: column;
    gap: 4px;
  }
  .timeline-date {
    margin-left: 0;
  }
}

/* Footer */
footer { border-top: 1px solid var(--border); padding: 28px 0; color: var(--muted); }
.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.social-links {
  display: flex;
  gap: 12px;
  align-items: center;
}
.social-icon {
  width: 24px;
  height: 24px;
  color: var(--muted);
  transition: color 0.2s ease, transform 0.2s ease;
}
.social-icon:hover {
  color: var(--brand);
  transform: translateY(-1px);
}

@media (max-width: 480px) {
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
  .social-icon {
    width: 20px;
    height: 20px;
  }
}