/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-dark: #0f1419;
  --bg-secondary: #1a1f2e;
  --bg-card: #232936;
  --text-primary: #e8eaed;
  --text-secondary: #9aa0a6;
  --accent-blue: #4a9eff;
  --accent-green: #00d9a3;
  --accent-purple: #8b5cf6;
  --border-color: #2d3748;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header Styles */
header {
  background-color: var(--bg-secondary);
  padding: 2rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border-color);
}

.header-content {
  display: flex;
  align-items: center;
  gap: 2rem;
  margin-bottom: 1.5rem;
}

.profile-img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--accent-blue);
}

.header-text h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.tagline {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 0.3rem;
}

.location {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* Navigation */
.main-nav {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.main-nav a {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  transition: all 0.3s ease;
}

.main-nav a:hover {
  background-color: var(--accent-blue);
  color: white;
}

/* Section Styles */
.section {
  padding: 4rem 0;
  border-bottom: 1px solid var(--border-color);
}

.section h2 {
  font-size: 2rem;
  margin-bottom: 2rem;
  text-align: center;
  color: var(--accent-blue);
}

/* Metrics Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.metric-card {
  background-color: var(--bg-card);
  padding: 2rem;
  border-radius: 12px;
  text-align: center;
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.metric-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 24px rgba(74, 158, 255, 0.2);
}

.metric-number {
  font-size: 3rem;
  font-weight: bold;
  color: var(--accent-green);
  margin-bottom: 0.5rem;
}

.metric-label {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* Skills Container */
.skills-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.skill-category {
  background-color: var(--bg-card);
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.skill-category h3 {
  color: var(--accent-purple);
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

.skill-category ul {
  list-style: none;
}

.skill-category li {
  padding: 0.5rem 0;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
}

.skill-category li:last-child {
  border-bottom: none;
}

.skill-category li:before {
  content: "▹ ";
  color: var(--accent-green);
  font-weight: bold;
  margin-right: 0.5rem;
}

/* Timeline Styles */
.timeline {
  position: relative;
  max-width: 900px;
  margin: 2rem auto;
}

.timeline-item {
  display: flex;
  gap: 2rem;
  margin-bottom: 2rem;
  position: relative;
}

.timeline-marker {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 0.3rem;
  position: relative;
  z-index: 1;
}

.timeline-marker.work {
  background-color: var(--accent-blue);
}

.timeline-marker.education {
  background-color: var(--accent-purple);
}

.timeline-marker::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 20px;
  width: 2px;
  height: calc(100% + 2rem);
  background-color: var(--border-color);
  transform: translateX(-50%);
}

.timeline-item:last-child .timeline-marker::before {
  display: none;
}

.timeline-content {
  background-color: var(--bg-card);
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  flex: 1;
}

.timeline-content h3 {
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  font-size: 1.3rem;
}

.company {
  color: var(--accent-blue);
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.period {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.timeline-content ul {
  margin-top: 1rem;
  padding-left: 1.2rem;
}

.timeline-content li {
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

/* Contact Section */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 600px;
  margin: 2rem auto;
  background-color: var(--bg-card);
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.contact-item {
  font-size: 1.1rem;
  color: var(--text-secondary);
}

.contact-item strong {
  color: var(--text-primary);
  margin-right: 0.5rem;
}

.contact-item a {
  color: var(--accent-blue);
  text-decoration: none;
}

.contact-item a:hover {
  text-decoration: underline;
}

.cta {
  text-align: center;
  margin-top: 2rem;
}

.btn {
  display: inline-block;
  padding: 1rem 2rem;
  background-color: var(--accent-blue);
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn:hover {
  background-color: var(--accent-green);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 217, 163, 0.3);
}

/* Footer */
footer {
  background-color: var(--bg-secondary);
  padding: 2rem 0;
  text-align: center;
  color: var(--text-secondary);
  border-top: 1px solid var(--border-color);
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    text-align: center;
  }

  .profile-img {
    width: 100px;
    height: 100px;
  }

  .header-text h1 {
    font-size: 1.5rem;
  }

  .main-nav {
    gap: 1rem;
    font-size: 0.9rem;
  }

  .section {
    padding: 2rem 0;
  }

  .section h2 {
    font-size: 1.5rem;
  }

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

  .metric-number {
    font-size: 2.5rem;
  }

  .skills-container {
    grid-template-columns: 1fr;
  }

  .timeline-item {
    gap: 1rem;
  }

  .timeline-content {
    padding: 1rem;
  }

  .timeline-content h3 {
    font-size: 1.1rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

  .main-nav {
    flex-direction: column;
    gap: 0.5rem;
  }

  .main-nav a {
    width: 100%;
    text-align: center;
  }

  .metric-card {
    padding: 1.5rem;
  }
}