/* =============================================
   Codextio - Main Stylesheet
   ============================================= */

*, *::before, *::after {
  box-sizing: border-box;
}

body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  margin: 0;
  background: #0a0f1a;
  color: #e5e7eb;
  line-height: 1.7;
  overflow-x: hidden;
}

/* Animated background */
.bg-gradient {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(ellipse at 20% 20%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(6, 182, 212, 0.05) 0%, transparent 70%);
  z-index: -1;
  animation: gradientShift 15s ease-in-out infinite alternate;
}

@keyframes gradientShift {
  0% { opacity: 1; }
  100% { opacity: 0.7; transform: scale(1.1); }
}

/* =============================================
   Navigation
   ============================================= */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(10, 15, 26, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  z-index: 1000;
  transition: all 0.3s ease;
}

nav.scrolled {
  padding: 0.75rem 2rem;
  background: rgba(10, 15, 26, 0.95);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.3s ease;
}

.logo:hover {
  transform: scale(1.02);
}

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.logo:hover .logo-icon {
  transform: rotate(10deg);
}

.logo span {
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: #94a3b8;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  transition: width 0.3s ease;
}

.nav-links a:hover {
  color: #3b82f6;
}

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

/* =============================================
   Hero Section
   ============================================= */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 6rem 1.5rem 4rem;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 50px;
  font-size: 0.85rem;
  color: #60a5fa;
  margin-bottom: 1.5rem;
  animation: fadeInUp 0.6s ease;
}

.hero-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

h1 {
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: 700;
  margin: 0 0 1rem;
  background: linear-gradient(135deg, #ffffff 0%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 3vw, 1.4rem);
  color: #94a3b8;
  max-width: 600px;
  margin: 0 auto 2.5rem;
  animation: fadeInUp 0.6s ease 0.2s both;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  animation: fadeInUp 0.6s ease 0.3s both;
}

/* =============================================
   Buttons
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 10px;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  color: white;
  box-shadow: 0 4px 20px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(59, 130, 246, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: #e5e7eb;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

/* =============================================
   Sections
   ============================================= */
section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 5rem 1.5rem;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
}

.section-subtitle {
  text-align: center;
  color: #94a3b8;
  max-width: 600px;
  margin: 0 auto 3rem;
}

/* Scroll reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* =============================================
   About Section
   ============================================= */
#about {
  background: rgba(255, 255, 255, 0.02);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
  align-items: center;
}

.profile-card {
  text-align: center;
  padding: 2rem;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(139, 92, 246, 0.1));
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.profile-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.profile-avatar {
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  margin: 0 auto 1.5rem;
  overflow: hidden;
  transition: transform 0.3s ease;
}

.profile-card:hover .profile-avatar {
  transform: scale(1.05);
}

.profile-avatar img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 15px;
}

.profile-name {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.profile-title {
  color: #94a3b8;
  font-size: 0.95rem;
}

.profile-experience {
  display: inline-block;
  margin-top: 0.75rem;
  padding: 0.4rem 1rem;
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.2), rgba(16, 185, 129, 0.2));
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #22c55e;
}

.btn-linkedin {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.25rem;
  padding: 0.6rem 1.25rem;
  background: #0a66c2;
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-linkedin:hover {
  background: #004182;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(10, 102, 194, 0.4);
}

.btn-linkedin svg {
  flex-shrink: 0;
}

.about-text p {
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.about-text strong {
  color: #60a5fa;
}

/* =============================================
   Focus Areas / Cards
   ============================================= */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.card {
  padding: 2rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  transition: all 0.3s ease;
}

.card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(59, 130, 246, 0.3);
  transform: translateY(-4px);
}

.card-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(139, 92, 246, 0.2));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
  transition: transform 0.3s ease;
}

.card:hover .card-icon {
  transform: scale(1.1) rotate(5deg);
}

.card h3 {
  font-size: 1.2rem;
  margin: 0 0 0.75rem;
}

.card p {
  color: #94a3b8;
  margin: 0;
  font-size: 0.95rem;
}

/* =============================================
   Projects Section
   ============================================= */
.project-card {
  padding: 2.5rem;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(139, 92, 246, 0.08));
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.project-info h3 {
  font-size: 1.5rem;
  margin: 0 0 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.project-badge {
  font-size: 0.7rem;
  padding: 0.25rem 0.75rem;
  background: rgba(34, 197, 94, 0.2);
  color: #22c55e;
  border-radius: 50px;
  font-weight: 600;
}

.project-info p {
  color: #94a3b8;
  margin: 0 0 1.5rem;
  max-width: 500px;
}

.project-features {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.feature-tag {
  padding: 0.4rem 0.9rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 6px;
  font-size: 0.85rem;
  color: #cbd5e1;
  transition: all 0.3s ease;
}

.feature-tag:hover {
  background: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
}

/* =============================================
   Footer
   ============================================= */
footer {
  text-align: center;
  padding: 3rem 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.social-link {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  color: #94a3b8;
  text-decoration: none;
  font-size: 1.2rem;
  transition: all 0.3s ease;
}

.social-link:hover {
  background: rgba(59, 130, 246, 0.2);
  border-color: rgba(59, 130, 246, 0.5);
  color: #60a5fa;
  transform: translateY(-2px);
}

.footer-text {
  color: #64748b;
  font-size: 0.9rem;
}

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

.scroll-indicator span {
  display: block;
  width: 24px;
  height: 24px;
  border-right: 2px solid #64748b;
  border-bottom: 2px solid #64748b;
  transform: rotate(45deg);
}

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

/* =============================================
   Responsive Design
   ============================================= */
@media (max-width: 768px) {
  nav {
    padding: 1rem;
  }

  .nav-links {
    display: none;
  }

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

  .project-card {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .project-info h3 {
    justify-content: center;
  }

  .project-features {
    justify-content: center;
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
    max-width: 300px;
  }

  .btn {
    justify-content: center;
  }

  section {
    padding: 3rem 1.5rem;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 2rem;
  }

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

  .card {
    padding: 1.5rem;
  }

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