:root {
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --primary-rgb: 59, 130, 246;
  --accent: #8b5cf6;
  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  --bg-main: #090d16;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --bg-input: #1e293b;
  --border: rgba(255, 255, 255, 0.1);
  --border-hover: rgba(59, 130, 246, 0.4);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --nav-bg: rgba(9, 13, 22, 0.85);
  --badge-bg: rgba(59, 130, 246, 0.12);
  --badge-text: #60a5fa;
  --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --glow: 0 0 40px -10px rgba(59, 130, 246, 0.3);
  --radius: 14px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg-main: #f8fafc;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: rgba(255, 255, 255, 1);
  --bg-input: #f1f5f9;
  --border: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(59, 130, 246, 0.4);
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #94a3b8;
  --nav-bg: rgba(248, 250, 252, 0.9);
  --badge-bg: rgba(59, 130, 246, 0.08);
  --badge-text: #2563eb;
  --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.08);
  --glow: 0 0 30px -5px rgba(59, 130, 246, 0.15);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
  min-height: 100vh;
}

/* Background Ambient Glows */
.ambient-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  z-index: -1;
  pointer-events: none;
  opacity: 0.35;
}

.glow-1 {
  top: -10%;
  left: 20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
}

.glow-2 {
  top: 40%;
  right: -5%;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
}

.glow-3 {
  bottom: 10%;
  left: 10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--accent-cyan) 0%, transparent 70%);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: var(--nav-bg);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.5px;
}

.logo-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--primary);
}

.logo-text span {
  color: var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.92rem;
  transition: var(--transition);
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-main);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.theme-toggle {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-main);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1.1rem;
}

.theme-toggle:hover {
  border-color: var(--primary);
  transform: rotate(15deg);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: 10px;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.84rem;
  border-radius: 8px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
}

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

.btn-secondary:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

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

.btn-outline:hover {
  color: var(--text-main);
  border-color: var(--primary);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding: 150px 0 80px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 999px;
  background: var(--badge-bg);
  color: var(--badge-text);
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid var(--border);
  margin-bottom: 20px;
}

.hero-badge .pulse {
  width: 8px;
  height: 8px;
  background: var(--accent-emerald);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.gradient-text {
  background: linear-gradient(135deg, #60a5fa 0%, #a78bfa 50%, #38bdf8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 24px;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 580px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 40px;
}

.hero-socials {
  display: flex;
  align-items: center;
  gap: 16px;
}

.social-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  text-decoration: none;
  transition: var(--transition);
}

.social-icon:hover {
  color: var(--primary);
  border-color: var(--primary);
  transform: translateY(-3px);
  background: var(--bg-card-hover);
}

.hero-avatar-card {
  position: relative;
  display: flex;
  justify-content: center;
}

.avatar-wrapper {
  position: relative;
  width: 320px;
  height: 320px;
  border-radius: 28px;
  padding: 10px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.4), rgba(139, 92, 246, 0.4));
  box-shadow: var(--glow);
}

.avatar-img {
  width: 100%;
  height: 100%;
  border-radius: 20px;
  object-fit: cover;
  background: var(--bg-card);
}

.floating-pill {
  position: absolute;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  padding: 10px 18px;
  border-radius: 12px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: float 4s ease-in-out infinite;
}

.pill-1 {
  top: -15px;
  left: -20px;
  animation-delay: 0s;
}

.pill-2 {
  bottom: -15px;
  right: -20px;
  animation-delay: 2s;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

.pill-icon {
  font-size: 1.3rem;
}

.pill-text {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-main);
}

.pill-sub {
  font-size: 0.72rem;
  color: var(--text-dim);
}

/* Stats Counter Section */
.stats-section {
  padding: 40px 0;
  margin-bottom: 60px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.stat-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  padding: 24px 20px;
  border-radius: var(--radius);
  text-align: center;
  transition: var(--transition);
}

.stat-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.88rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Section Header */
.section {
  padding: 80px 0;
  position: relative;
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 50px;
}

.section-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--primary);
  margin-bottom: 10px;
}

.section-heading {
  font-size: 2.3rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 14px;
}

.section-desc {
  font-size: 1.02rem;
  color: var(--text-muted);
}

/* Skills Matrix */
.skills-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
}

.tab-btn {
  padding: 8px 18px;
  border-radius: 999px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn:hover, .tab-btn.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.skill-category-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
}

.skill-category-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
}

.category-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-main);
}

.category-title i {
  color: var(--primary);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-tag {
  background: var(--bg-input);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--text-main);
  transition: var(--transition);
}

.skill-tag:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* Experience Timeline */
.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 24px;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), var(--accent), var(--border));
}

.timeline-item {
  position: relative;
  padding-left: 64px;
  margin-bottom: 40px;
}

.timeline-dot {
  position: absolute;
  left: 17px;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-main);
  border: 3px solid var(--primary);
  transition: var(--transition);
}

.timeline-item:hover .timeline-dot {
  background: var(--primary);
  box-shadow: 0 0 12px var(--primary);
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
}

.timeline-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 8px;
}

.role-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
}

.company-name {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.95rem;
}

.timeline-date {
  font-size: 0.82rem;
  font-weight: 600;
  background: var(--badge-bg);
  color: var(--badge-text);
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
}

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

.timeline-bullets li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 8px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.timeline-bullets li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: bold;
}

.timeline-bullets li strong {
  color: var(--text-main);
}

/* Projects Showcase */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 28px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

.project-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.project-badge {
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--badge-bg);
  color: var(--badge-text);
}

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

.project-link-icon {
  color: var(--text-muted);
  font-size: 1.1rem;
  text-decoration: none;
  transition: var(--transition);
}

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

.project-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-main);
}

.project-desc {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.55;
  margin-bottom: 20px;
  flex-grow: 1;
}

.project-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}

.tech-chip {
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--bg-input);
  color: var(--text-dim);
  padding: 4px 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
}

/* Resume PDF & Download Banner */
.resume-banner {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(139, 92, 246, 0.15));
  border: 1px solid var(--border-hover);
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.resume-banner h3 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.resume-banner p {
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 24px;
}

.resume-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
}

/* Education & Achievements */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.edu-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
}

.edu-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
}

.edu-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.edu-institution {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.92rem;
  margin-bottom: 8px;
}

.edu-time {
  font-size: 0.82rem;
  color: var(--text-dim);
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  max-width: 960px;
  margin: 0 auto;
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.contact-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--badge-bg);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.contact-detail h4 {
  font-size: 0.85rem;
  color: var(--text-dim);
  text-transform: uppercase;
}

.contact-detail p, .contact-detail a {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  text-decoration: none;
  transition: var(--transition);
}

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

.copy-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  margin-left: 8px;
  font-size: 0.9rem;
}

.copy-btn:hover {
  color: var(--primary);
}

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.9rem;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: var(--primary);
  color: #fff;
  padding: 12px 24px;
  border-radius: 10px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.3);
  font-weight: 600;
  font-size: 0.9rem;
  z-index: 9999;
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition);
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-desc {
    margin: 0 auto 36px;
  }
  .hero-cta, .hero-socials {
    justify-content: center;
  }
  .hero-avatar-card {
    order: -1;
    margin-bottom: 30px;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg-main);
    padding: 24px;
    border-bottom: 1px solid var(--border);
    gap: 16px;
  }
  .mobile-menu-btn {
    display: block;
  }
  .hero-title {
    font-size: 2.3rem;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
}