* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'JetBrains Mono', monospace;
  background: #fafafa;
  color: #1a1a1a;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 640px;
  padding: 80px 24px 60px;
  margin-left: max(24px, calc((100vw - 640px) / 6));
}

/* Hero */
.hero {
  margin-bottom: 48px;
}

.hero h1 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 28px;
  font-weight: 500;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.hero p {
  font-size: 14px;
  color: #6b6b6b;
  line-height: 1.7;
}

/* Tabs */
.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 40px;
  border-bottom: 1px solid #e5e5e5;
}

.tab {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 500;
  color: #6b6b6b;
  background: none;
  border: none;
  padding: 8px 16px 12px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.15s, border-color 0.15s;
}

.tab:hover {
  color: #1a1a1a;
}

.tab.active {
  color: #1a1a1a;
  border-bottom-color: #1a1a1a;
}

/* Tab content */
.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: 24px;
  margin-left: 4px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: #e5e5e5;
}

.timeline-entry {
  position: relative;
  padding-bottom: 40px;
}

.timeline-entry:last-child {
  padding-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: -24px;
  top: 8px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #d4d4d4;
  transform: translateX(-3px);
}

.timeline-content .date {
  display: block;
  font-size: 12px;
  color: #999;
  margin-bottom: 4px;
}

.timeline-content h3 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 2px;
}

.timeline-content .company {
  display: block;
  font-size: 13px;
  color: #6b6b6b;
  margin-bottom: 6px;
}

.timeline-content p {
  font-size: 13px;
  color: #6b6b6b;
  line-height: 1.55;
}

/* Project links in timeline */
.timeline-content a {
  text-decoration: none;
  color: inherit;
}

.timeline-content a h3 {
  border-bottom: 1px solid #d4d4d4;
  display: inline;
  transition: border-color 0.15s;
}

.timeline-content a:hover h3 {
  border-color: #1a1a1a;
}

/* Footer */
.footer {
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid #e5e5e5;
}

.footer a {
  font-size: 13px;
  color: #6b6b6b;
  text-decoration: none;
  border-bottom: 1px solid #d4d4d4;
  padding-bottom: 1px;
  transition: color 0.15s, border-color 0.15s;
}

.footer a:hover {
  color: #1a1a1a;
  border-color: #1a1a1a;
}

/* Responsive */
@media (max-width: 680px) {
  .container {
    margin-left: 0;
    padding: 48px 20px 40px;
  }

  .hero h1 {
    font-size: 28px;
  }

  .hero {
    margin-bottom: 36px;
  }

  .tabs {
    margin-bottom: 32px;
  }

  .timeline-entry {
    padding-bottom: 32px;
  }
}