:root {
  --primary-color: #000000;
  --secondary-color: #FFD700;
  --accent-color: #333333;
  --bg-color: #0a0a0a;
  --text-color: #ffffff;
  --text-secondary: #cccccc;
  --card-bg: #1a1a1a;
  --border-color: #333333;
  --success-color: #00ff41;
  --warning-color: #ff6b35;
  --info-color: #00bcd4;
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
}

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

/* Header */
.header {
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(10px);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.5rem;
}

.logo i {
  color: var(--secondary-color);
  font-size: 1.8rem;
}

.nav {
  display: flex;
  gap: 2rem;
}

.nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav a:hover {
  color: var(--secondary-color);
}

/* Hero Section */
.hero {
  padding: 120px 0 80px;
  text-align: center;
  background: linear-gradient(135deg, var(--bg-color) 0%, var(--accent-color) 100%);
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--secondary-color), #fff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 4rem;
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--secondary-color);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Contributions Section */
.contributions {
  padding: 80px 0;
}

.contributions h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: var(--secondary-color);
}

.contributions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 2rem;
}

.contribution-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.contribution-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--secondary-color), var(--success-color));
}

.contribution-card:hover {
  transform: translateY(-5px);
  border-color: var(--secondary-color);
  box-shadow: 0 10px 30px rgba(255, 215, 0, 0.1);
}

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

.contribution-title {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 0.5rem;
}

.contribution-org {
  color: var(--secondary-color);
  font-weight: 500;
}

.contribution-status {
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
}

.status-submitted {
  background: rgba(255, 107, 53, 0.2);
  color: var(--warning-color);
}

.status-merged {
  background: rgba(0, 255, 65, 0.2);
  color: var(--success-color);
}

.contribution-description {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.contribution-meta {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.meta-item i {
  color: var(--secondary-color);
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.tech-tag {
  background: rgba(255, 215, 0, 0.1);
  color: var(--secondary-color);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.8rem;
  border: 1px solid rgba(255, 215, 0, 0.3);
}

.contribution-links {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.btn {
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

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

.btn-primary:hover {
  background: #ffed4e;
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  border-color: var(--secondary-color);
  color: var(--secondary-color);
}

/* Stats Section */
.stats-section {
  padding: 80px 0;
  background: var(--card-bg);
}

.stats-section h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: var(--secondary-color);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.stats-card {
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
}

.stats-card h3 {
  margin-bottom: 1.5rem;
  color: var(--text-color);
}

/* About Section */
.about {
  padding: 80px 0;
}

.about h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: var(--secondary-color);
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
}

.about-content p {
  font-size: 1.1rem;
  margin-bottom: 2rem;
  color: var(--text-secondary);
}

.about-content h3 {
  margin-bottom: 1rem;
  color: var(--text-color);
}

.about-content ul {
  list-style: none;
  margin-bottom: 2rem;
}

.about-content li {
  margin-bottom: 1rem;
  color: var(--text-secondary);
  padding-left: 1.5rem;
  position: relative;
}

.about-content li::before {
  content: '🦸‍♀️';
  position: absolute;
  left: 0;
}

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

.footer p {
  color: var(--text-secondary);
}

.footer a {
  color: var(--secondary-color);
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .hero-stats {
    gap: 2rem;
  }
  
  .contributions-grid {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .nav {
    gap: 1rem;
  }
  
  .contribution-meta {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .contribution-links {
    flex-direction: column;
  }
}