/* ===== CSS Variables ===== */
:root {
  --bg-primary: #060b1a;
  --bg-secondary: #0d1630;
  --bg-card: rgba(13, 22, 48, 0.75);
  --accent-cyan: #00d4ff;
  --accent-purple: #8b5cf6;
  --accent-gold: #fbbf24;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --border: rgba(0, 212, 255, 0.18);
  --border-hover: rgba(0, 212, 255, 0.5);
  --glow: 0 0 30px rgba(0, 212, 255, 0.2);
  --glow-strong: 0 0 50px rgba(0, 212, 255, 0.35);
  --font-display: 'Orbitron', monospace;
  --font-body: 'Inter', 'Roboto', sans-serif;
  --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
  --nav-height: 80px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.7;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.025) 1px, transparent 1px);
  background-size: 70px 70px;
  pointer-events: none;
  z-index: 0;
}

img, video { display: block; max-width: 100%; height: auto; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ===== Scroll Progress ===== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
  z-index: 9999;
  width: 0%;
  transition: width 0.1s;
}

/* ===== Navigation ===== */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 40px;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition);
}

#navbar.scrolled {
  background: rgba(6, 11, 26, 0.96);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.nav-logo { display: flex; align-items: center; gap: 12px; }
.logo-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 2px;
}

.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-link {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  padding: 8px 18px;
  border-radius: 8px;
  transition: var(--transition);
  position: relative;
}
.nav-link:hover, .nav-link.active {
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.08);
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--accent-cyan);
  border-radius: 1px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

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

.section {
  padding: 100px 0;
  position: relative;
  z-index: 1;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 60px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.3px;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  color: #fff;
  box-shadow: 0 0 25px rgba(0, 212, 255, 0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(0, 212, 255, 0.5);
}
.btn-secondary {
  background: transparent;
  color: var(--accent-cyan);
  border: 1.5px solid var(--accent-cyan);
}
.btn-secondary:hover {
  background: rgba(0, 212, 255, 0.1);
  transform: translateY(-2px);
  box-shadow: var(--glow);
}

.accent-text {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== Hero Section ===== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: var(--nav-height) 24px 0;
}

#particleCanvas {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
  padding-top: 40px;
}

.hero-text { flex: 1; max-width: 600px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(251, 191, 36, 0.1);
  border: 1px solid rgba(251, 191, 36, 0.3);
  color: var(--accent-gold);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 50px;
  margin-bottom: 28px;
  letter-spacing: 0.3px;
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5.5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 20px;
  color: var(--text-primary);
  letter-spacing: -1px;
}

.hero-title {
  font-size: 1.15rem;
  color: var(--accent-cyan);
  margin-bottom: 24px;
  min-height: 1.7em;
  font-weight: 500;
}
.typewriter::after {
  content: '|';
  animation: blink 0.7s infinite;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

.hero-bio {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 36px;
}

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

/* Profile Ring */
.hero-image {
  position: relative;
  flex-shrink: 0;
}
.profile-ring {
  position: relative;
  width: 340px;
  height: 340px;
}
.profile-ring-outer {
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  background: conic-gradient(var(--accent-cyan), var(--accent-purple), var(--accent-cyan));
  animation: rotate 8s linear infinite;
  opacity: 0.7;
}
.profile-ring-inner {
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: var(--bg-primary);
}
@keyframes rotate { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.profile-photo {
  position: absolute;
  inset: 8px;
  width: calc(100% - 16px);
  height: calc(100% - 16px);
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  z-index: 1;
  border: 3px solid var(--bg-primary);
}

/* Floating decorations */
.hero-image::before, .hero-image::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  animation: float 4s ease-in-out infinite;
}
.hero-image::before {
  width: 80px;
  height: 80px;
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.2);
  top: -20px;
  right: -20px;
}
.hero-image::after {
  width: 50px;
  height: 50px;
  background: rgba(139, 92, 246, 0.08);
  border: 1px solid rgba(139, 92, 246, 0.2);
  bottom: 10px;
  left: -30px;
  animation-delay: -2s;
}
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

/* Stats bar */
.hero-stats {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 48px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 60px;
  padding: 32px 48px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  backdrop-filter: blur(12px);
  max-width: 700px;
  width: 100%;
}
.stat-item { text-align: center; }
.stat-value {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.stat-value::after { content: '+'; }
.stat-item:nth-child(4) .stat-value::after { content: '%'; }
.stat-label {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-top: 6px;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 500;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 0.78rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  animation: fadeInUp 1s ease 2s both;
}
.scroll-mouse {
  width: 26px;
  height: 42px;
  border: 2px solid rgba(0, 212, 255, 0.4);
  border-radius: 13px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
}
.scroll-wheel {
  width: 4px;
  height: 8px;
  background: var(--accent-cyan);
  border-radius: 2px;
  animation: scrollDown 1.5s ease infinite;
}
@keyframes scrollDown {
  0% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(12px); opacity: 0; }
}

/* ===== About Section ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
  margin-top: 60px;
}
.about-text p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-size: 1.02rem;
  line-height: 1.85;
}
.about-text strong { color: var(--accent-cyan); font-weight: 600; }
.about-highlights { display: flex; flex-direction: column; gap: 16px; }
.highlight-card {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px 24px;
  transition: var(--transition);
  backdrop-filter: blur(8px);
}
.highlight-card:hover {
  border-color: var(--border-hover);
  transform: translateX(6px);
  box-shadow: var(--glow);
}
.highlight-icon {
  font-size: 1.4rem;
  color: var(--accent-cyan);
  margin-top: 2px;
  flex-shrink: 0;
}
.highlight-card h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 4px; }
.highlight-card p { font-size: 0.85rem; color: var(--text-secondary); }

/* ===== Featured Section ===== */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 50px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  transition: var(--transition);
  display: block;
  backdrop-filter: blur(8px);
}
.feature-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-8px);
  box-shadow: var(--glow-strong);
}
.feature-img {
  position: relative;
  height: 220px;
  overflow: hidden;
}
.feature-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.feature-card:hover .feature-img img { transform: scale(1.08); }
.feature-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(6, 11, 26, 0.7) 0%, transparent 60%);
  display: flex;
  align-items: flex-start;
  padding: 16px;
}
.feature-tag {
  background: rgba(0, 212, 255, 0.15);
  border: 1px solid rgba(0, 212, 255, 0.4);
  color: var(--accent-cyan);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 50px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.feature-info { padding: 22px 24px; }
.feature-info h3 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: 0.3px;
}
.feature-info p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; margin-bottom: 14px; }
.feature-link {
  font-size: 0.85rem;
  color: var(--accent-cyan);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s;
}
.feature-card:hover .feature-link { gap: 10px; }

.featured-cta { text-align: center; }

/* ===== Nav Cards ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.nav-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 36px 32px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(8px);
}
.nav-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.06), rgba(139, 92, 246, 0.06));
  opacity: 0;
  transition: opacity 0.3s;
}
.nav-card:hover::before { opacity: 1; }
.nav-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-6px);
  box-shadow: var(--glow);
}
.nav-card-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--accent-cyan);
}
.nav-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
}
.nav-card p { font-size: 0.88rem; color: var(--text-secondary); }
.nav-card-arrow {
  margin-top: auto;
  color: var(--accent-cyan);
  font-size: 1rem;
  transition: transform 0.2s;
}
.nav-card:hover .nav-card-arrow { transform: translateX(6px); }

/* ===== Projects Page ===== */
.page-hero {
  padding: calc(var(--nav-height) + 60px) 24px 60px;
  text-align: center;
  position: relative;
  z-index: 1;
}
.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  margin-bottom: 16px;
}
.page-hero p { color: var(--text-secondary); font-size: 1.1rem; max-width: 600px; margin: 0 auto; }

.projects-filter {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}
.filter-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 8px 22px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-body);
}
.filter-btn:hover, .filter-btn.active {
  background: rgba(0, 212, 255, 0.1);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 36px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
  backdrop-filter: blur(10px);
}
.project-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-8px);
  box-shadow: var(--glow-strong);
}
.project-card-img {
  position: relative;
  height: 260px;
  overflow: hidden;
}
.project-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.project-card:hover .project-card-img img { transform: scale(1.1); }
.project-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(6, 11, 26, 0.85) 30%, rgba(6, 11, 26, 0.1) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 20px 24px;
  opacity: 0;
  transition: opacity 0.3s;
}
.project-card:hover .project-card-overlay { opacity: 1; }
.overlay-text {
  color: var(--accent-cyan);
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}
.project-card-body { padding: 24px 28px; }
.project-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.tag {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.tag-aerospace { background: rgba(0, 212, 255, 0.12); color: var(--accent-cyan); border: 1px solid rgba(0, 212, 255, 0.25); }
.tag-automotive { background: rgba(139, 92, 246, 0.12); color: var(--accent-purple); border: 1px solid rgba(139, 92, 246, 0.25); }
.tag-energy { background: rgba(251, 191, 36, 0.12); color: var(--accent-gold); border: 1px solid rgba(251, 191, 36, 0.25); }
.tag-innovation { background: rgba(34, 197, 94, 0.12); color: #22c55e; border: 1px solid rgba(34, 197, 94, 0.25); }
.project-card-body h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: 0.3px;
}
.project-card-body p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.7; }

/* ===== Project Modal ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.88);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
  backdrop-filter: blur(4px);
}
.modal-overlay.active { opacity: 1; pointer-events: all; }
.modal {
  background: #0d1630;
  border: 1px solid var(--border);
  border-radius: 24px;
  max-width: 900px;
  width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  position: relative;
  transform: translateY(20px) scale(0.96);
  transition: transform 0.3s;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-cyan) transparent;
}
.modal-overlay.active .modal { transform: translateY(0) scale(1); }
.modal::-webkit-scrollbar { width: 5px; }
.modal::-webkit-scrollbar-track { background: transparent; }
.modal::-webkit-scrollbar-thumb { background: var(--accent-cyan); border-radius: 3px; }

.modal-header {
  position: sticky;
  top: 0;
  background: #0d1630;
  padding: 24px 32px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 10;
}
.modal-header h2 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent-cyan);
}
.modal-close {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: 10px;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal-close:hover { background: rgba(255,0,0,0.1); border-color: rgba(255,0,0,0.3); color: #ff6b6b; }
.modal-body { padding: 32px; }
.modal-media {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}
.modal-media img, .modal-media video {
  width: 100%;
  border-radius: 12px;
  object-fit: cover;
  max-height: 300px;
}
.modal-body p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.85;
  margin-bottom: 16px;
}

/* ===== Resume Page ===== */
.resume-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  align-items: start;
  margin-top: 60px;
}
.resume-sidebar {
  position: sticky;
  top: calc(var(--nav-height) + 20px);
}
.sidebar-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
  margin-bottom: 20px;
  backdrop-filter: blur(8px);
}
.sidebar-section h3 {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 20px;
}
.sidebar-profile { text-align: center; }
.sidebar-photo {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  border: 3px solid var(--accent-cyan);
  margin: 0 auto 16px;
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}
.sidebar-name {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.sidebar-role { font-size: 0.8rem; color: var(--text-secondary); }
.skill-item { margin-bottom: 18px; }
.skill-name {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  font-weight: 500;
  margin-bottom: 6px;
}
.skill-pct { color: var(--accent-cyan); }
.skill-bar {
  height: 5px;
  background: rgba(255,255,255,0.08);
  border-radius: 3px;
  overflow: hidden;
}
.skill-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
  border-radius: 3px;
  width: 0;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 14px;
}
.contact-item i { color: var(--accent-cyan); width: 16px; }
.contact-item a { color: var(--text-secondary); transition: color 0.2s; }
.contact-item a:hover { color: var(--accent-cyan); }

/* Timeline */
.timeline { position: relative; }
.timeline::before {
  content: '';
  position: absolute;
  left: 24px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-cyan), var(--accent-purple), rgba(139, 92, 246, 0.1));
}
.timeline-item {
  position: relative;
  padding-left: 72px;
  margin-bottom: 48px;
}
.timeline-dot {
  position: absolute;
  left: 14px;
  top: 4px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 2px solid var(--accent-cyan);
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
}
.timeline-dot i { font-size: 0.55rem; color: var(--accent-cyan); }
.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px 32px;
  transition: var(--transition);
  backdrop-filter: blur(8px);
}
.timeline-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--glow);
}
.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 6px;
}
.timeline-company {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}
.timeline-period {
  font-size: 0.78rem;
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.2);
  padding: 4px 12px;
  border-radius: 50px;
  font-weight: 600;
  white-space: nowrap;
}
.timeline-role {
  font-size: 0.88rem;
  color: var(--accent-purple);
  font-weight: 600;
  margin-bottom: 16px;
}
.timeline-card ul { padding-left: 0; }
.timeline-card li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 8px;
  padding-left: 18px;
  position: relative;
}
.timeline-card li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent-cyan);
  font-size: 0.75rem;
  top: 2px;
}

/* Resume section headers */
.resume-section { margin-bottom: 60px; }
.resume-section-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 32px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}
.resume-section-title i { color: var(--accent-cyan); }

/* Education */
.edu-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px 32px;
  margin-bottom: 20px;
  transition: var(--transition);
  backdrop-filter: blur(8px);
}
.edu-card:hover { border-color: var(--border-hover); box-shadow: var(--glow); }
.edu-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; flex-wrap: wrap; }
.edu-school {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.edu-degree { font-size: 0.88rem; color: var(--accent-purple); font-weight: 600; }
.edu-period {
  font-size: 0.78rem;
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.2);
  padding: 4px 12px;
  border-radius: 50px;
  font-weight: 600;
  white-space: nowrap;
}
.edu-modules {
  margin-top: 16px;
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Achievements */
.achievements-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.achievement-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px 24px;
  transition: var(--transition);
  display: flex;
  align-items: flex-start;
  gap: 14px;
  backdrop-filter: blur(8px);
}
.achievement-card:hover { border-color: var(--border-hover); box-shadow: var(--glow); transform: translateY(-4px); }
.ach-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(251, 191, 36, 0.1);
  border: 1px solid rgba(251, 191, 36, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--accent-gold);
  flex-shrink: 0;
}
.achievement-card p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; }

/* ===== Contact Page ===== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 60px;
  align-items: start;
  margin-top: 60px;
}
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 48px;
  backdrop-filter: blur(10px);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-field { display: flex; flex-direction: column; gap: 8px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.3px;
}
.form-field input, .form-field textarea {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 18px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: var(--transition);
  resize: vertical;
}
.form-field input:focus, .form-field textarea:focus {
  outline: none;
  border-color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.04);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}
.form-field textarea { min-height: 140px; }
.form-submit { margin-top: 8px; }

.contact-info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 36px;
  backdrop-filter: blur(10px);
}
.contact-info-card h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 28px;
  color: var(--accent-cyan);
}
.info-item {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}
.info-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--accent-cyan);
  flex-shrink: 0;
}
.info-label { font-size: 0.75rem; color: var(--text-secondary); margin-bottom: 3px; text-transform: uppercase; letter-spacing: 1px; }
.info-value { font-size: 0.92rem; font-weight: 500; }
.info-value a { color: var(--text-primary); transition: color 0.2s; }
.info-value a:hover { color: var(--accent-cyan); }

.social-links { display: flex; gap: 12px; margin-top: 36px; }
.social-link-btn {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--text-secondary);
  transition: var(--transition);
}
.social-link-btn:hover {
  background: rgba(0, 212, 255, 0.1);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: translateY(-3px);
}

/* ===== Footer ===== */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  background: rgba(6, 11, 26, 0.95);
  padding: 60px 0 32px;
}
.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand p { font-size: 0.85rem; color: var(--text-secondary); margin-top: 8px; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: 0.88rem; color: var(--text-secondary); transition: color 0.2s; }
.footer-links a:hover { color: var(--accent-cyan); }
.footer-social { display: flex; gap: 12px; }
.social-link {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 1rem;
  transition: var(--transition);
}
.social-link:hover { background: rgba(0,212,255,0.1); border-color: var(--accent-cyan); color: var(--accent-cyan); }
.footer-bottom {
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-secondary);
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.05);
}

/* ===== Animations ===== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }
.fade-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-left.visible { opacity: 1; transform: translateX(0); }
.fade-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-right.visible { opacity: 1; transform: translateX(0); }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-text { animation: fadeInUp 0.8s ease 0.2s both; }
.hero-image { animation: fadeInUp 0.8s ease 0.4s both; }
.hero-stats { animation: fadeInUp 0.8s ease 0.6s both; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .featured-grid { grid-template-columns: 1fr 1fr; }
  .cards-grid { grid-template-columns: 1fr 1fr; }
  .resume-layout { grid-template-columns: 1fr; }
  .resume-sidebar { position: static; }
  .achievements-grid { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  :root { --nav-height: 70px; }
  #navbar { padding: 0 20px; }
  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(6, 11, 26, 0.98);
    backdrop-filter: blur(16px);
    flex-direction: column;
    padding: 24px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-100%);
    opacity: 0;
    transition: transform 0.3s, opacity 0.3s;
    pointer-events: none;
  }
  .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: all; }
  .nav-link { padding: 14px 20px; border-radius: 12px; }
  .nav-toggle { display: flex; }
  .hero-content { flex-direction: column-reverse; gap: 40px; padding-top: 20px; text-align: center; }
  .hero-cta { justify-content: center; }
  .profile-ring { width: 220px; height: 220px; }
  .hero-stats { gap: 24px; padding: 24px; }
  .stat-value { font-size: 1.6rem; }
  .featured-grid, .cards-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .contact-form { padding: 28px; }
  .footer-content { flex-direction: column; gap: 24px; }
  .footer-links { flex-wrap: wrap; gap: 16px; }
  .section { padding: 70px 0; }
}
@media (max-width: 480px) {
  .hero-name { font-size: 1.9rem; }
  .profile-ring { width: 180px; height: 180px; }
  .hero-stats { gap: 16px; padding: 20px; }
  .stat-value { font-size: 1.4rem; }
}

/* ============================================================
   ULTRA ENHANCEMENTS
   ============================================================ */

/* ===== Aurora background blobs ===== */
.aurora {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}
.aurora span {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.35;
  animation: auroraDrift 18s ease-in-out infinite alternate;
}
.aurora span:nth-child(1) {
  width: 480px; height: 480px;
  background: radial-gradient(circle, rgba(0,212,255,0.55), transparent 70%);
  top: -10%; left: -8%;
}
.aurora span:nth-child(2) {
  width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(139,92,246,0.5), transparent 70%);
  bottom: -12%; right: -6%;
  animation-delay: -6s;
}
.aurora span:nth-child(3) {
  width: 320px; height: 320px;
  background: radial-gradient(circle, rgba(251,191,36,0.25), transparent 70%);
  top: 35%; left: 55%;
  animation-delay: -12s;
}
@keyframes auroraDrift {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(60px, -40px) scale(1.15); }
  100% { transform: translate(-40px, 50px) scale(0.95); }
}

/* ===== Animated gradient name ===== */
.gradient-animate {
  background: linear-gradient(270deg, var(--accent-cyan), var(--accent-purple), var(--accent-gold), var(--accent-cyan));
  background-size: 300% 300%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 7s ease infinite;
}
@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ===== Cursor glow (desktop) ===== */
.cursor-glow {
  position: fixed;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,212,255,0.07), transparent 65%);
  pointer-events: none;
  transform: translate(-50%, -50%);
  z-index: 2;
  transition: opacity 0.3s;
}
@media (max-width: 768px), (hover: none) { .cursor-glow { display: none; } }

/* ===== 3D tilt cards ===== */
[data-tilt] {
  transform-style: preserve-3d;
  will-change: transform;
}
[data-tilt] > * { transform: translateZ(20px); }

/* ===== Card shine sweep ===== */
.shine {
  position: relative;
  overflow: hidden;
}
.shine::after {
  content: '';
  position: absolute;
  top: 0;
  left: -80%;
  width: 50%;
  height: 100%;
  background: linear-gradient(110deg, transparent, rgba(255,255,255,0.08), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s ease;
  pointer-events: none;
}
.shine:hover::after { left: 130%; }

/* ===== Tech marquee ticker ===== */
.marquee-section {
  position: relative;
  z-index: 1;
  padding: 24px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(13, 22, 48, 0.5);
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track {
  display: flex;
  gap: 48px;
  width: max-content;
  animation: marquee 30s linear infinite;
}
.marquee-section:hover .marquee-track { animation-play-state: paused; }
.marquee-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text-secondary);
  white-space: nowrap;
  text-transform: uppercase;
}
.marquee-item i { color: var(--accent-cyan); font-size: 0.6rem; }
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ===== Expertise cards ===== */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.expertise-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 26px;
  text-align: center;
  transition: var(--transition);
  backdrop-filter: blur(8px);
  position: relative;
  overflow: hidden;
}
.expertise-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.expertise-card:hover::before { transform: scaleX(1); }
.expertise-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-8px);
  box-shadow: var(--glow);
}
.expertise-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 18px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(0,212,255,0.12), rgba(139,92,246,0.12));
  border: 1px solid rgba(0,212,255,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--accent-cyan);
  transition: var(--transition);
}
.expertise-card:hover .expertise-icon {
  transform: scale(1.1) rotate(-5deg);
  box-shadow: 0 0 25px rgba(0,212,255,0.3);
}
.expertise-card h3 {
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.expertise-card p { font-size: 0.83rem; color: var(--text-secondary); line-height: 1.65; }

/* ===== Skill chips ===== */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 50px;
  transition: var(--transition);
}
.chip:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  background: rgba(0,212,255,0.08);
  transform: translateY(-2px);
}

/* ===== Personal statement quote ===== */
.statement-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 44px 48px 40px;
  margin-bottom: 60px;
  backdrop-filter: blur(8px);
  border-left: 3px solid var(--accent-cyan);
}
.statement-card .quote-mark {
  position: absolute;
  top: 18px;
  left: 28px;
  font-size: 4rem;
  font-family: Georgia, serif;
  color: rgba(0,212,255,0.18);
  line-height: 1;
}
.statement-card p {
  font-size: 1.02rem;
  color: var(--text-secondary);
  line-height: 1.9;
  font-style: italic;
}

/* ===== Section glow divider ===== */
.glow-divider {
  position: relative;
  height: 1px;
  max-width: var(--max-width);
  margin: 0 auto;
  background: linear-gradient(90deg, transparent, rgba(0,212,255,0.4), rgba(139,92,246,0.4), transparent);
}

/* ===== Back to top ===== */
.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  color: #fff;
  border: none;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 900;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: var(--transition);
  box-shadow: 0 0 25px rgba(0,212,255,0.35);
}
.back-to-top.show { opacity: 1; pointer-events: all; transform: translateY(0); }
.back-to-top:hover { transform: translateY(-4px); }

/* ===== Flagship AI project cards ===== */
.flagship-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.flagship-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  overflow: hidden;
  transition: var(--transition);
  backdrop-filter: blur(8px);
}
.flagship-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--glow);
}
.flagship-img {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.flagship-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.flagship-card:hover .flagship-img img { transform: scale(1.04); }
.flagship-body { padding: 28px 30px 30px; }
.flagship-body h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin: 14px 0 12px;
}
.flagship-body p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.75;
}
.flagship-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 22px;
}
.flagship-actions .btn { padding: 12px 24px; font-size: 0.85rem; }

/* App-screenshot banners: keep the top-left logo/header corner in view */
.img-anchor-left { object-position: left top !important; }

/* AI + live tags */
.tag-ai {
  background: linear-gradient(135deg, rgba(0,212,255,0.15), rgba(139,92,246,0.15));
  color: var(--accent-cyan);
  border: 1px solid rgba(0,212,255,0.35);
}
.tag-live {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(34, 197, 94, 0.1);
  color: #22c55e;
  border: 1px solid rgba(34, 197, 94, 0.35);
}
.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #22c55e;
  animation: livePulse 1.5s ease infinite;
}
@keyframes livePulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.6; }
}

/* ===== Ultra responsive ===== */
@media (max-width: 1024px) {
  .expertise-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .flagship-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .expertise-grid { grid-template-columns: 1fr; }
  .statement-card { padding: 36px 28px 32px; }
  .flagship-body { padding: 22px 20px 24px; }
}