/* Modern Security Portfolio Stylesheet */

:root {
  --primary-color: #0078d4;
  --secondary-color: #005a9e;
  --success-color: #00c851;
  --warning-color: #ff8800;
  --danger-color: #dc3545;
  --dark-color: #1e1e1e;
  --light-color: #f8f9fa;
  --border-color: #e0e0e0;
  --text-primary: #333333;
  --text-secondary: #666666;
  --text-light: #999999;
  --code-bg: #1e1e1e;
  --code-text: #d4d4d4;
  --gradient-primary: linear-gradient(135deg, #0078d4 0%, #005a9e 100%);
  --gradient-secondary: linear-gradient(135deg, #00c851 0%, #007e33 100%);
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.2);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: #ffffff;
}

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

/* Navigation */
.navbar {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  transition: all 0.3s ease;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav-brand h2 {
  color: var(--primary-color);
  font-weight: 600;
  font-size: 1.5rem;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-link {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

.nav-link:hover {
  color: var(--primary-color);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

/* Hero Section */
.hero {
  background: var(--gradient-primary);
  color: white;
  padding: 120px 0 80px;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.3rem;
  margin-bottom: 2rem;
  opacity: 0.9;
  font-weight: 300;
}

.hero-stats {
  display: flex;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--success-color);
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.8;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.btn-primary {
  background: white;
  color: var(--primary-color);
}

.btn-primary:hover {
  background: var(--light-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: white;
  border-color: white;
}

.btn-secondary:hover {
  background: white;
  color: var(--primary-color);
}

/* Code Window */
.code-window {
  background: var(--code-bg);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.window-header {
  background: #2d2d2d;
  display: flex;
  align-items: center;
  padding: 12px 16px;
  gap: 12px;
}

.window-buttons {
  display: flex;
  gap: 6px;
}

.window-buttons span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.btn-close { background: #ff5f57; }
.btn-minimize { background: #ffbd2e; }
.btn-maximize { background: #28ca42; }

.window-title {
  color: #ccc;
  font-size: 0.9rem;
}

.code-content {
  padding: 20px;
  font-family: 'Fira Code', 'Consolas', monospace;
  font-size: 0.9rem;
}

.code-line {
  margin-bottom: 8px;
  color: var(--code-text);
}

.prompt {
  color: var(--success-color);
  margin-right: 8px;
}

.output {
  color: #9cdcfe;
  margin-left: 16px;
}

.cursor {
  background: var(--code-text);
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* About Section */
.about-section {
  padding: 80px 0;
  background: var(--light-color);
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.section-header p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Timeline */
.timeline {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 30px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
}

.timeline-item {
  position: relative;
  margin-bottom: 3rem;
  padding-left: 80px;
}

.timeline-marker {
  position: absolute;
  left: 22px;
  top: 8px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--border-color);
  border: 3px solid white;
  box-shadow: var(--shadow-sm);
}

.timeline-marker.current {
  background: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(0, 120, 212, 0.2);
}

.timeline-content h3 {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.timeline-content p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.timeline-skills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.skill-tag {
  background: var(--primary-color);
  color: white;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--border-color);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.progress-fill {
  height: 100%;
  background: var(--gradient-primary);
  transition: width 0.3s ease;
}

/* Recent Updates */
.recent-updates {
  padding: 80px 0;
}

.updates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.update-card {
  background: white;
  border-radius: 12px;
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  border-left: 4px solid var(--primary-color);
}

.update-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.blog-card { border-left-color: var(--primary-color); }
.lab-card { border-left-color: var(--success-color); }
.cert-card { border-left-color: var(--warning-color); }

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.card-type {
  background: var(--primary-color);
  color: white;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

.lab-card .card-type { background: var(--success-color); }
.cert-card .card-type { background: var(--warning-color); }

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

.update-card p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.6;
}

.read-more {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.read-more:hover {
  color: var(--secondary-color);
}

/* Footer */
.footer {
  background: var(--dark-color);
  color: white;
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h3 {
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: #ccc;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--primary-color);
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-link {
  color: #ccc;
  text-decoration: none;
  transition: color 0.3s ease;
}

.social-link:hover {
  color: var(--primary-color);
}

.footer-bottom {
  border-top: 1px solid #333;
  padding-top: 1rem;
  text-align: center;
  color: #999;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .nav-menu {
    display: none; /* Add mobile menu implementation */
  }
  
  .updates-grid {
    grid-template-columns: 1fr;
  }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-primary { color: var(--primary-color); }
.text-success { color: var(--success-color); }
.text-warning { color: var(--warning-color); }
.text-danger { color: var(--danger-color); }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }