/* =====================================================
   SABARINATHAN C - PORTFOLIO WEBSITE STYLES
   Professional Frontend Web Developer Portfolio
   ===================================================== */

/* CSS Variables */
:root {
  /* Colors */
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --secondary: #10b981;
  --accent: #f59e0b;

  /* Background Colors */
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --bg-card: rgba(30, 41, 59, 0.8);

  /* Text Colors */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
  --gradient-secondary: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  --gradient-card: linear-gradient(145deg, rgba(30, 41, 59, 0.9), rgba(15, 23, 42, 0.9));

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);

  /* Borders */
  --border-color: rgba(148, 163, 184, 0.1);
  --border-radius: 12px;
  --border-radius-lg: 20px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Spacing */
  --section-padding: 100px 0;
  --container-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

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

/* Container */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5);
}

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

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--primary);
  color: var(--primary-light);
}

/* Section Styles */
.section {
  padding: var(--section-padding);
  position: relative;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  text-align: center;
  margin-bottom: 60px;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

/* =====================================================
   NAVIGATION
   ===================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 20px 0;
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  padding: 12px 0;
  box-shadow: var(--shadow-lg);
}

.nav-container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
}

.logo-text {
  font-size: 1.8rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 8px;
}

.nav-link {
  padding: 10px 18px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 25px;
  transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
  background: rgba(99, 102, 241, 0.1);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
}

.hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  position: relative;
  transition: all var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: var(--text-primary);
  transition: all var(--transition-fast);
}

.hamburger::before { top: -8px; }
.hamburger::after { top: 8px; }

/* =====================================================
   HERO SECTION
   ===================================================== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 120px 24px 60px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-container {
  max-width: var(--container-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  animation: fadeInUp 1s ease forwards;
}

.hero-greeting {
  font-size: 1.1rem;
  color: var(--primary-light);
  font-weight: 500;
  margin-bottom: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.hero-name {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  margin-bottom: 10px;
  background: linear-gradient(135deg, #fff 0%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  color: var(--primary-light);
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 540px;
  margin-bottom: 32px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.hero-social {
  display: flex;
  gap: 16px;
}

.social-link {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  color: var(--text-secondary);
  transition: all var(--transition-normal);
}

.social-link:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(99, 102, 241, 0.3);
}

/* Hero Image */
.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeInRight 1s ease 0.3s forwards;
  opacity: 0;
}

.image-wrapper {
  position: relative;
  width: 380px;
  height: 380px;
}

.image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  border: 4px solid var(--bg-tertiary);
  position: relative;
  z-index: 2;
  animation: morphing 8s ease-in-out infinite;
}

.image-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  filter: blur(40px);
  opacity: 0.5;
  z-index: 1;
  animation: morphing 8s ease-in-out infinite, pulse 3s ease-in-out infinite;
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--text-muted);
  font-size: 0.85rem;
  animation: bounce 2s infinite;
}

.scroll-arrow {
  width: 24px;
  height: 40px;
  border: 2px solid var(--text-muted);
  border-radius: 12px;
  position: relative;
}

.scroll-arrow::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--primary-light);
  border-radius: 2px;
  animation: scrollDown 2s infinite;
}

/* =====================================================
   ABOUT SECTION
   ===================================================== */
.about {
  background: var(--gradient-secondary);
}

.about-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 60px;
  align-items: start;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-size: 1.05rem;
  line-height: 1.8;
}

.about-text strong {
  color: var(--primary-light);
}

.about-details {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 30px 0;
  padding: 24px;
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
}

.detail-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.detail-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.detail-value {
  font-size: 1rem;
  color: var(--text-primary);
  font-weight: 500;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.stat-card {
  background: var(--gradient-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 30px 24px;
  text-align: center;
  transition: all var(--transition-normal);
}

.stat-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-plus {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-light);
}

.stat-label {
  display: block;
  margin-top: 8px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* =====================================================
   SKILLS SECTION
   ===================================================== */
.skills {
  background: var(--bg-primary);
}

.skills-container {
  display: grid;
  gap: 50px;
}

.skills-category {
  background: var(--gradient-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 40px;
}

.category-title {
  font-size: 1.3rem;
  color: var(--text-primary);
  margin-bottom: 30px;
  padding-bottom: 15px;
  border-bottom: 2px solid var(--border-color);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.skill-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 24px;
  transition: all var(--transition-normal);
}

.skill-item:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
}

.skill-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 16px;
}

.skill-icon svg {
  width: 100%;
  height: 100%;
}

.skill-name {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.skill-bar {
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  overflow: hidden;
}

.skill-progress {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 3px;
  width: 0;
  transition: width 1.5s ease;
}

/* =====================================================
   PROJECTS SECTION
   ===================================================== */
.projects {
  background: var(--gradient-secondary);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.project-card {
  background: var(--gradient-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.project-card:hover {
  transform: translateY(-10px);
  border-color: var(--primary);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.project-card.featured {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
}

.project-image {
  position: relative;
  height: 220px;
  overflow: hidden;
}

.project-card.featured .project-image {
  height: 100%;
  min-height: 300px;
}

.project-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 3px;
}

.project-overlay {
  position: absolute;
  top: 16px;
  right: 16px;
}

.project-tag {
  background: var(--gradient-primary);
  color: white;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.project-content {
  padding: 28px;
}

.project-title {
  font-size: 1.3rem;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.project-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.project-tech span {
  background: var(--bg-tertiary);
  color: var(--primary-light);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

/* =====================================================
   EXPERIENCE SECTION
   ===================================================== */
.experience {
  background: var(--bg-primary);
}

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

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--gradient-primary);
  border-radius: 3px;
}

.timeline-item {
  position: relative;
  padding-left: 50px;
  padding-bottom: 50px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: -8px;
  top: 5px;
  width: 20px;
  height: 20px;
  background: var(--primary);
  border: 4px solid var(--bg-primary);
  border-radius: 50%;
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
}

.timeline-content {
  background: var(--gradient-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 30px;
}

.timeline-header {
  margin-bottom: 10px;
}

.timeline-title {
  font-size: 1.3rem;
  color: var(--text-primary);
  margin-bottom: 5px;
}

.timeline-company {
  font-size: 1.1rem;
  color: var(--primary-light);
  font-weight: 600;
}

.timeline-date {
  display: inline-block;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  margin-bottom: 20px;
}

.timeline-responsibilities {
  list-style: none;
}

.timeline-responsibilities li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 12px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.timeline-responsibilities li::before {
  content: '>';
  position: absolute;
  left: 0;
  color: var(--primary-light);
  font-weight: 600;
}

/* =====================================================
   EDUCATION SECTION
   ===================================================== */
.education {
  background: var(--gradient-secondary);
}

.education-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.education-card {
  display: flex;
  gap: 20px;
  background: var(--gradient-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 28px;
  transition: all var(--transition-normal);
}

.education-card:hover {
  border-color: var(--primary);
  transform: translateY(-5px);
}

.education-icon {
  width: 50px;
  height: 50px;
  min-width: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border-radius: 12px;
  color: var(--primary-light);
}

.education-icon svg {
  width: 28px;
  height: 28px;
}

.education-content {
  flex: 1;
}

.education-degree {
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.education-institution {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.education-year {
  display: inline-block;
  background: var(--bg-tertiary);
  color: var(--text-muted);
  padding: 4px 12px;
  border-radius: 15px;
  font-size: 0.8rem;
  margin-right: 8px;
}

.education-score {
  display: inline-block;
  background: rgba(16, 185, 129, 0.2);
  color: var(--secondary);
  padding: 4px 12px;
  border-radius: 15px;
  font-size: 0.8rem;
  font-weight: 600;
}

/* =====================================================
   CONTACT SECTION
   ===================================================== */
.contact {
  background: var(--bg-primary);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-intro {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 40px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.contact-icon {
  width: 50px;
  height: 50px;
  min-width: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  color: var(--primary-light);
}

.contact-icon svg {
  width: 22px;
  height: 22px;
}

.contact-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.contact-text a,
.contact-text span {
  font-size: 1rem;
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

.contact-text a:hover {
  color: var(--primary-light);
}

/* Contact Form */
.contact-form {
  background: var(--gradient-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 40px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 16px 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-group textarea {
  resize: vertical;
  min-height: 140px;
}

.btn-submit {
  width: 100%;
}

/* =====================================================
   FOOTER
   ===================================================== */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 40px 0;
}

.footer-content {
  text-align: center;
}

.footer-text {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.footer-text strong {
  color: var(--primary-light);
}

.footer-copyright {
  font-size: 0.9rem;
  color: var(--text-muted);
}

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

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes morphing {
  0%, 100% {
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  }
  25% {
    border-radius: 58% 42% 75% 25% / 76% 46% 54% 24%;
  }
  50% {
    border-radius: 50% 50% 33% 67% / 55% 27% 73% 45%;
  }
  75% {
    border-radius: 33% 67% 58% 42% / 63% 68% 32% 37%;
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 0.5;
  }
  50% {
    opacity: 0.3;
  }
}

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

@keyframes scrollDown {
  0% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(10px);
  }
}

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

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

/* =====================================================
   RESPONSIVE STYLES
   ===================================================== */

/* Tablet */
@media (max-width: 1024px) {
  :root {
    --section-padding: 80px 0;
  }

  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }

  .hero-content {
    order: 2;
  }

  .hero-image {
    order: 1;
  }

  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-social {
    justify-content: center;
  }

  .image-wrapper {
    width: 300px;
    height: 300px;
  }

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

  .about-stats {
    grid-template-columns: repeat(4, 1fr);
  }

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

  .project-card.featured {
    grid-column: span 1;
    grid-template-columns: 1fr;
  }

  .project-card.featured .project-image {
    height: 220px;
    min-height: unset;
  }

  .contact-content {
    grid-template-columns: 1fr;
  }
}

/* Mobile */
@media (max-width: 768px) {
  :root {
    --section-padding: 60px 0;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-secondary);
    flex-direction: column;
    padding: 100px 30px 30px;
    gap: 8px;
    transition: right var(--transition-normal);
    box-shadow: var(--shadow-xl);
  }

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

  .nav-toggle {
    display: block;
    z-index: 1001;
  }

  .nav-toggle.active .hamburger {
    background: transparent;
  }

  .nav-toggle.active .hamburger::before {
    top: 0;
    transform: rotate(45deg);
  }

  .nav-toggle.active .hamburger::after {
    top: 0;
    transform: rotate(-45deg);
  }

  .section-title {
    margin-bottom: 40px;
  }

  .image-wrapper {
    width: 260px;
    height: 260px;
  }

  .about-details {
    grid-template-columns: 1fr;
  }

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

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

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

  .timeline::before {
    left: 8px;
  }

  .timeline-item {
    padding-left: 40px;
  }

  .timeline-marker {
    left: 0;
  }

  .scroll-indicator {
    display: none;
  }
}

/* Small Mobile */
@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .btn {
    padding: 12px 24px;
    font-size: 0.9rem;
  }

  .hero {
    padding: 100px 16px 40px;
  }

  .image-wrapper {
    width: 220px;
    height: 220px;
  }

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

  .hero-buttons .btn {
    width: 100%;
  }

  .stat-card {
    padding: 20px 16px;
  }

  .stat-number {
    font-size: 2rem;
  }

  .skills-category {
    padding: 24px;
  }

  .project-content {
    padding: 20px;
  }

  .timeline-content {
    padding: 20px;
  }

  .education-card {
    flex-direction: column;
    text-align: center;
  }

  .contact-form {
    padding: 24px;
  }
}