/* CSS Variables */
:root {
  --primary-color: #3b82f6;
  --secondary-color: #8b5cf6;
  --accent-color: #06b6d4;
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.8);
  --text-muted: rgba(255, 255, 255, 0.6);
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: rgba(255, 255, 255, 0.05);
  --bg-card-hover: rgba(255, 255, 255, 0.1);
  --border-color: rgba(255, 255, 255, 0.1);
  --gradient-primary: linear-gradient(135deg, #3b82f6, #8b5cf6);
  --gradient-bg: linear-gradient(135deg, #0f172a 0%, #581c87 50%, #0f172a 100%);
  --shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  --border-radius: 16px;
  --transition: all 0.3s ease;
  --font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background: var(--gradient-bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
}

.section-title {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 4rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  border-radius: var(--border-radius);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

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

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

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: var(--transition);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo a {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
}

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

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.bar {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  margin: 3px 0;
  transition: var(--transition);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, rgba(59, 130, 246, 0.2), rgba(139, 92, 246, 0.2));
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  text-align: center;
  position: relative;
  z-index: 10;
}

.hero-title {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 800;
  margin-bottom: 1.5rem;
  line-height: 1.1;
}

.hero-name {
  display: block;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 800px;
  margin: 0 auto 3rem;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
}

.scroll-indicator i {
  font-size: 2rem;
  color: var(--text-muted);
}

@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-10px);
  }
  60% {
    transform: translateX(-50%) translateY(-5px);
  }
}

/* About Section */
.about {
  padding: 6rem 0;
  background: rgba(0, 0, 0, 0.2);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about-card {
  background: var(--bg-card);
  padding: 2.5rem;
  border-radius: var(--border-radius);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
}

.about-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.about-card p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.about-features {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: var(--border-radius);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.feature-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-5px);
}

.feature-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.feature-card:nth-child(1) .feature-icon {
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
}

.feature-card:nth-child(2) .feature-icon {
  background: linear-gradient(135deg, #ec4899, #be185d);
}

.feature-icon i {
  font-size: 1.5rem;
  color: white;
}

.feature-card h4 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Skills Section */
.skills {
  padding: 6rem 0;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.skill-card {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: var(--border-radius);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.skill-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-5px);
}

.skill-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.skill-header i {
  font-size: 2rem;
}

.backend .skill-header i {
  color: #3b82f6;
}
.database .skill-header i {
  color: #10b981;
}
.web .skill-header i {
  color: #8b5cf6;
}
.creative .skill-header i {
  color: #f59e0b;
}

.skill-header h3 {
  font-size: 1.2rem;
  color: var(--text-primary);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  background: var(--gradient-primary);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 25px;
  font-size: 0.9rem;
  font-weight: 500;
}

.backend .tag {
  background: linear-gradient(135deg, #3b82f6, #1d4ed8);
}
.database .tag {
  background: linear-gradient(135deg, #10b981, #059669);
}
.web .tag {
  background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}
.creative .tag {
  background: linear-gradient(135deg, #f59e0b, #d97706);
}

/* Projects Section */
.projects {
  padding: 6rem 0;
  background: rgba(0, 0, 0, 0.2);
}

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

.project-card {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: var(--border-radius);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-5px);
}

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

.project-header p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.project-tags .tag {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--text-secondary);
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  margin-top: auto;
  transition: var(--transition);
}

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

/* Stats Section */
.stats {
  padding: 6rem 0;
}

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

.stat-card {
  background: var(--bg-card);
  padding: 2.5rem;
  border-radius: var(--border-radius);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  text-align: center;
  transition: var(--transition);
}

.stat-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-5px);
}

.stat-card i {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.stat-card:nth-child(1) i {
  color: #fbbf24;
}
.stat-card:nth-child(2) i {
  color: #10b981;
}
.stat-card:nth-child(3) i {
  color: #3b82f6;
}
.stat-card:nth-child(4) i {
  color: #8b5cf6;
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--text-secondary);
  font-weight: 500;
}

/* Contact Section */
.contact {
  padding: 6rem 0;
  background: rgba(0, 0, 0, 0.2);
}

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

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.contact-card {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: var(--border-radius);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  text-align: center;
  transition: var(--transition);
}

.contact-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-5px);
}

.contact-card i {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.contact-card:nth-child(1) i {
  color: #3b82f6;
}
.contact-card:nth-child(2) i {
  color: #10b981;
}
.contact-card:nth-child(3) i {
  color: #ef4444;
}

.contact-card h3 {
  font-size: 1.2rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.contact-card p {
  color: var(--text-secondary);
  font-weight: 500;
}

.contact-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

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

.footer p {
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background: rgba(0, 0, 0, 0.95);
    width: 100%;
    text-align: center;
    transition: 0.3s;
    backdrop-filter: blur(20px);
    padding: 2rem 0;
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

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

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-buttons {
    flex-direction: column;
    align-items: center;
  }

  .section-title {
    font-size: 2rem;
  }

  .container {
    padding: 0 1rem;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Smooth scrolling for older browsers */
@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

/* Focus styles for accessibility */
.btn:focus,
.nav-link:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Print styles */
@media print {
  .navbar,
  .scroll-indicator,
  .contact-buttons {
    display: none;
  }

  body {
    background: white;
    color: black;
  }
}