/* ==========================================================================
   DIGITAL CV & PORTFOLIO - MODERN DESIGN SYSTEM
   Theme: Dark Tech Aesthetic (Deep Slate, Glassmorphism & Neon Accents)
   ========================================================================== */

/* --- Root Design Tokens --- */
:root {
  /* Color Palette - Dark Mode Default */
  --bg-base: #06080d;
  --bg-surface: #0b0f19;
  --bg-card: rgba(15, 23, 42, 0.65);
  --bg-card-hover: rgba(30, 41, 59, 0.8);
  --bg-glass: rgba(255, 255, 255, 0.03);
  --bg-glass-active: rgba(255, 255, 255, 0.08);
  --nav-bg: rgba(6, 8, 13, 0.82);

  /* Borders & Dividers */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-card: rgba(255, 255, 255, 0.1);
  --border-glow: rgba(0, 242, 254, 0.35);

  /* Accents */
  --accent-cyan: #00f2fe;
  --accent-cyan-glow: rgba(0, 242, 254, 0.25);
  --accent-indigo: #6366f1;
  --accent-indigo-glow: rgba(99, 102, 241, 0.25);
  --accent-violet: #8b5cf6;
  --accent-purple: #a855f7;
  --accent-amber: #f59e0b;
  --accent-emerald: #10b981;
  --accent-emerald-glow: rgba(16, 185, 129, 0.2);

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #00f2fe 0%, #4facfe 50%, #8b5cf6 100%);
  --gradient-accent: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
  --gradient-card: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.01) 100%);
  --gradient-glow: radial-gradient(circle at 50% 50%, rgba(0, 242, 254, 0.15), transparent 70%);

  /* Typography */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #06080d;

  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Shadows & Depth */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 30px rgba(0, 242, 254, 0.25);
  --shadow-card-glow: 0 10px 30px -10px rgba(99, 102, 241, 0.2);

  /* Layout & Geometry */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --container-max: 1200px;
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- Light Mode Alternate Theme --- */
[data-theme="light"] {
  --bg-base: #f8fafc;
  --bg-surface: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: rgba(255, 255, 255, 0.98);
  --bg-glass: rgba(0, 0, 0, 0.03);
  --bg-glass-active: rgba(0, 0, 0, 0.07);
  --nav-bg: rgba(248, 250, 252, 0.88);

  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-card: rgba(0, 0, 0, 0.1);
  --border-glow: rgba(0, 180, 216, 0.4);

  --accent-cyan: #0096c7;
  --accent-cyan-glow: rgba(0, 150, 199, 0.2);
  --accent-indigo: #4f46e5;
  --accent-indigo-glow: rgba(79, 70, 229, 0.2);
  --accent-violet: #7c3aed;

  --gradient-primary: linear-gradient(135deg, #0096c7 0%, #4f46e5 50%, #7c3aed 100%);
  --gradient-card: linear-gradient(180deg, rgba(255, 255, 255, 0.9) 0%, rgba(241, 245, 249, 0.8) 100%);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #f8fafc;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.12);
  --shadow-glow: 0 0 25px rgba(0, 150, 199, 0.2);
  --shadow-card-glow: 0 10px 30px -10px rgba(79, 70, 229, 0.15);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Background Atmosphere Blobs */
.bg-ambient-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.blob-1 {
  position: absolute;
  top: -10vw;
  left: 10%;
  width: 45vw;
  height: 45vw;
  max-width: 600px;
  max-height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-cyan-glow) 0%, transparent 70%);
  filter: blur(80px);
  opacity: 0.6;
  animation: driftSlow 18s ease-in-out infinite alternate;
}

.blob-2 {
  position: absolute;
  top: 35vh;
  right: 5%;
  width: 50vw;
  height: 50vw;
  max-width: 650px;
  max-height: 650px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-indigo-glow) 0%, transparent 70%);
  filter: blur(90px);
  opacity: 0.5;
  animation: driftSlow 22s ease-in-out infinite alternate-reverse;
}

.blob-3 {
  position: absolute;
  bottom: 5vh;
  left: 20%;
  width: 40vw;
  height: 40vw;
  max-width: 500px;
  max-height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
  filter: blur(80px);
  opacity: 0.5;
}

/* Subtle Interactive Grid Background */
.bg-grid-pattern {
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(to right, var(--border-subtle) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border-subtle) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 50% 30%, black 20%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, black 20%, transparent 80%);
  pointer-events: none;
  z-index: 0;
  opacity: 0.6;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-base);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 9999px;
  border: 2px solid var(--bg-base);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-cyan);
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.25;
  letter-spacing: -0.02em;
}

p {
  color: var(--text-secondary);
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

.section {
  padding: 6.5rem 0;
  position: relative;
  z-index: 1;
}

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.825rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.35rem 1rem;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid var(--border-glow);
  color: var(--accent-cyan);
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.section-tag svg {
  width: 14px;
  height: 14px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}

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

/* Glassmorphism Card Style */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-lg), var(--shadow-card-glow);
}

/* ==========================================================================
   HEADER / NAVIGATION
   ========================================================================== */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 1.1rem 0;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-normal);
}

.site-nav.scrolled {
  padding: 0.75rem 0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  border-bottom-color: rgba(255, 255, 255, 0.12);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}

.brand-badge {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #06080d;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.1rem;
  box-shadow: var(--shadow-glow);
}

.brand-text span {
  color: var(--accent-cyan);
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 2rem;
}

.nav-link {
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 0.4rem 0.2rem;
  transition: color var(--transition-fast);
}

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

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

.nav-link.active::after,
.nav-link:hover::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Theme Toggle Button */
.theme-toggle-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-glass);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  background: var(--bg-glass-active);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: translateY(-2px);
}

.theme-toggle-btn svg {
  width: 18px;
  height: 18px;
}

/* Mobile Hamburger Menu */
.hamburger-btn {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-glass);
  color: var(--text-primary);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.hamburger-btn svg {
  width: 20px;
  height: 20px;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  padding-top: 9.5rem;
  padding-bottom: 6rem;
  min-height: 92vh;
  display: flex;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.95fr;
  align-items: center;
  gap: 3.5rem;
}

.hero-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 1.1rem;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--accent-emerald);
  margin-bottom: 1.75rem;
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.12);
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-emerald);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-emerald);
  position: relative;
}

.status-dot::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  opacity: 0.4;
  animation: pulseDot 2s ease-out infinite;
}

@keyframes pulseDot {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(2.4); opacity: 0; }
}

.hero-heading {
  font-size: clamp(2.5rem, 5.5vw, 4rem);
  font-weight: 800;
  line-height: 1.12;
  margin-bottom: 1rem;
  letter-spacing: -0.03em;
}

.hero-typed-wrapper {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  min-height: 2.2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
}

.typed-text {
  color: var(--accent-cyan);
  position: relative;
}

.typed-cursor {
  display: inline-block;
  width: 3px;
  height: 1.25em;
  background-color: var(--accent-cyan);
  animation: blink 1s step-start infinite;
  vertical-align: middle;
}

@keyframes blink {
  50% { opacity: 0; }
}

.hero-bio {
  font-size: 1.1rem;
  line-height: 1.75;
  color: var(--text-secondary);
  max-width: 580px;
  margin-bottom: 2.25rem;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

/* Button Component Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #06080d;
  box-shadow: 0 4px 20px rgba(0, 242, 254, 0.35);
  font-weight: 700;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 242, 254, 0.55);
}

.btn-secondary {
  background: var(--bg-glass);
  border: 1px solid var(--border-card);
  color: var(--text-primary);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: var(--bg-glass-active);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

.btn-sm {
  padding: 0.5rem 1.1rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-fast);
}

.btn:hover svg {
  transform: translateX(3px);
}

.btn-primary:hover svg {
  transform: translateY(2px);
}

/* Social Icon Bar */
.social-links {
  display: flex;
  align-items: center;
  gap: 1rem;
}

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

.social-link svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-fast);
}

.social-link:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  background: var(--bg-glass-active);
  transform: translateY(-4px);
  box-shadow: 0 6px 20px rgba(0, 242, 254, 0.25);
}

.social-link:hover svg {
  transform: scale(1.1);
}

/* Hero Visual / Avatar Card */
.hero-visual-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-avatar-card {
  position: relative;
  width: 100%;
  max-width: 420px;
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg), var(--shadow-card-glow);
  overflow: hidden;
}

.hero-avatar-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
}

.avatar-preview-box {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-subtle);
}

/* Stylized Vector Portrait Graphic */
.avatar-graphic {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.hero-avatar-card:hover .avatar-graphic {
  transform: scale(1.03);
}

.avatar-code-tag {
  position: absolute;
  bottom: 12px;
  left: 12px;
  right: 12px;
  padding: 0.6rem 0.9rem;
  background: rgba(6, 8, 13, 0.85);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.avatar-code-tag .badge-pill {
  color: var(--accent-cyan);
  background: rgba(0, 242, 254, 0.1);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
}

/* Floating Metric Badges around Avatar */
.float-card {
  position: absolute;
  padding: 0.75rem 1.1rem;
  border-radius: var(--radius-md);
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: floatSlow 6s ease-in-out infinite alternate;
  z-index: 2;
}

.float-card-1 {
  top: -20px;
  right: -20px;
  animation-delay: 0s;
}

.float-card-2 {
  bottom: 25px;
  left: -25px;
  animation-delay: -3s;
}

.float-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 242, 254, 0.12);
  color: var(--accent-cyan);
}

.float-icon.purple {
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-violet);
}

.float-card-title {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.float-card-value {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-primary);
}

@keyframes floatSlow {
  0% { transform: translateY(0px); }
  100% { transform: translateY(-12px); }
}

@keyframes driftSlow {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(40px, -30px) scale(1.08); }
}

/* ==========================================================================
   QUICK STATS COUNTER STRIP
   ========================================================================== */
.stats-strip {
  padding: 2rem 0;
  margin-top: -2rem;
  margin-bottom: 2rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.stat-item {
  padding: 1.5rem;
  text-align: center;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(12px);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.stat-item:hover {
  transform: translateY(-4px);
  border-color: var(--border-glow);
}

.stat-number {
  font-size: 2.25rem;
  font-weight: 800;
  font-family: var(--font-heading);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ==========================================================================
   WORK EXPERIENCE SECTION (Interactive Timeline)
   ========================================================================== */
.experience-timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: 1rem 0;
}

/* Central glowing timeline line */
.experience-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 28px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-cyan) 0%, var(--accent-indigo) 50%, rgba(99, 102, 241, 0.1) 100%);
}

.timeline-item {
  position: relative;
  padding-left: 72px;
  margin-bottom: 3rem;
}

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

/* Timeline marker node */
.timeline-marker {
  position: absolute;
  top: 6px;
  left: 17px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 2px solid var(--accent-cyan);
  box-shadow: 0 0 15px var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.timeline-marker::after {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-cyan);
}

.timeline-item:hover .timeline-marker {
  transform: scale(1.2);
  background: var(--accent-cyan);
}

.timeline-item:hover .timeline-marker::after {
  background-color: #06080d;
}

.timeline-card {
  padding: 1.75rem 2rem;
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.timeline-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.timeline-card:hover::before {
  opacity: 1;
}

.timeline-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.role-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
}

.company-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-top: 0.25rem;
}

.date-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  background: var(--bg-glass-active);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.date-badge svg {
  width: 14px;
  height: 14px;
  color: var(--accent-cyan);
}

.timeline-description {
  margin-top: 1rem;
  margin-bottom: 1.25rem;
}

.timeline-responsibilities {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.timeline-responsibilities li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.timeline-responsibilities li::before {
  content: '▹';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent-cyan);
  font-size: 1.1rem;
  line-height: 1.4;
}

.timeline-responsibilities li strong {
  color: var(--text-primary);
}

.experience-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.25rem 0.7rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.tech-tag:hover {
  background: rgba(0, 242, 254, 0.1);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* ==========================================================================
   TECHNICAL SKILLS SECTION (Categorized Grid & Pill Badges)
   ========================================================================== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 1.75rem;
}

.skill-card {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  height: 100%;
}

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

.skill-icon-box {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 242, 254, 0.1);
  border: 1px solid var(--border-glow);
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.skill-icon-box.indigo {
  background: rgba(99, 102, 241, 0.12);
  border-color: rgba(99, 102, 241, 0.35);
  color: var(--accent-indigo);
}

.skill-icon-box.purple {
  background: rgba(168, 85, 247, 0.12);
  border-color: rgba(168, 85, 247, 0.35);
  color: var(--accent-purple);
}

.skill-icon-box.emerald {
  background: rgba(16, 185, 129, 0.12);
  border-color: rgba(16, 185, 129, 0.35);
  color: var(--accent-emerald);
}

.skill-icon-box.amber {
  background: rgba(245, 158, 11, 0.12);
  border-color: rgba(245, 158, 11, 0.35);
  color: var(--accent-amber);
}

.skill-icon-box svg {
  width: 24px;
  height: 24px;
}

.skill-category-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.skill-category-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.skill-pills-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: auto;
}

.skill-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.9rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  transition: all var(--transition-fast);
  cursor: default;
}

.skill-pill:hover {
  background: rgba(0, 242, 254, 0.12);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 242, 254, 0.2);
}

.skill-pill-indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
}

.skill-pill.expert .skill-pill-indicator {
  background: var(--accent-cyan);
  box-shadow: 0 0 6px var(--accent-cyan);
}

.skill-pill.advanced .skill-pill-indicator {
  background: var(--accent-indigo);
  box-shadow: 0 0 6px var(--accent-indigo);
}

/* ==========================================================================
   KEY PROJECTS SECTION
   ========================================================================== */
/* Filter Navigation */
.project-filters {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 3rem;
}

.filter-btn {
  padding: 0.55rem 1.35rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.2);
}

.filter-btn.active {
  background: var(--gradient-primary);
  color: #06080d;
  border-color: transparent;
  font-weight: 700;
  box-shadow: 0 4px 16px rgba(0, 242, 254, 0.35);
}

/* Projects Grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 2rem;
}

.project-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  height: 100%;
}

.project-preview {
  position: relative;
  width: 100%;
  height: 210px;
  background: linear-gradient(135deg, #101728 0%, #1a2236 100%);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* SVG Vector Art inside project preview */
.preview-graphic-svg {
  width: 100%;
  height: 100%;
  transition: transform var(--transition-smooth);
}

.project-card:hover .preview-graphic-svg {
  transform: scale(1.05);
}

.project-badge-tag {
  position: absolute;
  top: 14px;
  right: 14px;
  padding: 0.3rem 0.75rem;
  background: rgba(6, 8, 13, 0.75);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  font-weight: 600;
}

.project-body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.project-summary {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.project-metric {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-emerald);
  margin-bottom: 1.25rem;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.2);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  width: fit-content;
}

.project-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1.5rem;
  margin-top: auto;
}

.project-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
}

.project-action-link {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.project-action-link.primary-action {
  background: rgba(0, 242, 254, 0.1);
  border-color: var(--border-glow);
  color: var(--accent-cyan);
}

.project-action-link:hover {
  background: var(--bg-glass-active);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: translateY(-2px);
}

.project-action-link.primary-action:hover {
  background: var(--accent-cyan);
  color: #06080d;
}

.project-action-link svg {
  width: 15px;
  height: 15px;
}

/* ==========================================================================
   EDUCATION & CERTIFICATIONS SECTION
   ========================================================================== */
.credentials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.credential-card {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.credential-header {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
}

.credential-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(0, 242, 254, 0.1);
  border: 1px solid var(--border-glow);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.credential-icon.gold {
  background: rgba(245, 158, 11, 0.12);
  border-color: rgba(245, 158, 11, 0.35);
  color: #f59e0b;
}

.credential-icon.emerald {
  background: rgba(16, 185, 129, 0.12);
  border-color: rgba(16, 185, 129, 0.35);
  color: var(--accent-emerald);
}

.credential-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.credential-issuer {
  font-size: 0.85rem;
  color: var(--accent-cyan);
  font-weight: 500;
}

.credential-cert-no {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.03);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  margin-top: auto;
  width: fit-content;
}

.education-card {
  padding: 2.25rem;
  margin-bottom: 2rem;
  border-left: 3px solid var(--accent-cyan);
}

.education-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
}

.education-degree {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
}

.education-school {
  font-size: 1.05rem;
  color: var(--accent-cyan);
  font-weight: 600;
  margin-top: 0.25rem;
}

.cgpa-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--accent-emerald);
  font-weight: 700;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
}

.awards-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-subtle);
}

.award-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.925rem;
  color: var(--text-secondary);
}

.award-item svg {
  width: 18px;
  height: 18px;
  color: #f59e0b;
  flex-shrink: 0;
  margin-top: 0.2rem;
}

/* Honors & Awards Cards */
.awards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.award-card {
  padding: 1.5rem;
  border-left: 3px solid #f59e0b;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.award-card:hover {
  transform: translateY(-3px);
  border-left-color: var(--accent-cyan);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.award-card-header {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
}

.award-card-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.35);
  color: #f59e0b;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.award-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}

.award-card-org {
  font-size: 0.85rem;
  color: var(--accent-cyan);
  font-weight: 600;
}

.award-card-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin: 0;
}

/* ==========================================================================
   CONTACT / LET'S CONNECT SECTION
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 3rem;
  align-items: start;
}

.contact-info-cards {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-card-item {
  padding: 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
}

.contact-icon-box {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  background: rgba(0, 242, 254, 0.1);
  border: 1px solid var(--border-glow);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

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

.contact-card-content {
  flex-grow: 1;
}

.contact-card-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.contact-card-val {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  word-break: break-all;
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  color: var(--accent-cyan);
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid var(--border-glow);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  margin-top: 0.5rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.copy-btn:hover {
  background: var(--accent-cyan);
  color: #06080d;
}

.copy-btn svg {
  width: 12px;
  height: 12px;
}

/* Contact Form */
.contact-form-card {
  padding: 2.5rem;
}

.form-header-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.form-header-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.85rem 1.1rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  outline: none;
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 242, 254, 0.15);
  background: rgba(255, 255, 255, 0.06);
}

.form-textarea {
  resize: vertical;
  min-height: 130px;
}

.btn-submit {
  width: 100%;
  padding: 1rem 2rem;
  font-size: 1rem;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  position: relative;
  z-index: 1;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  margin-top: 0.5rem;
  font-size: 0.9rem;
  max-width: 320px;
}

.back-to-top-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.back-to-top-btn:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  transform: translateY(-3px);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ==========================================================================
   MODAL DIALOG (Project Details & CV Preview)
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(6, 8, 13, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content-card {
  width: 100%;
  max-width: 680px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  transform: scale(0.95) translateY(20px);
  transition: transform var(--transition-normal);
  padding: 2.25rem;
}

.modal-overlay.active .modal-content-card {
  transform: scale(1) translateY(0);
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--bg-glass-active);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
  transform: rotate(90deg);
}

/* ==========================================================================
   TOAST NOTIFICATION COMPONENT
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.toast {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1.35rem;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-weight: 500;
  animation: toastIn 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.toast.toast-success svg {
  color: var(--accent-emerald);
}

@keyframes toastIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* ==========================================================================
   RESPONSIVE MEDIA QUERIES
   ========================================================================== */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }

  .hero-typed-wrapper {
    justify-content: center;
  }

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

  .hero-cta-group,
  .social-links {
    justify-content: center;
  }

  .hero-visual-wrapper {
    order: -1;
  }

  .hero-avatar-card {
    max-width: 320px;
  }

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

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

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-subtle);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    transform: translateY(-150%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-lg);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .hamburger-btn {
    display: flex;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 4.5rem 0;
  }

  .hero-section {
    padding-top: 7.5rem;
  }

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

  .experience-timeline::before {
    left: 20px;
  }

  .timeline-marker {
    left: 9px;
  }

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

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

  .float-card {
    display: none;
  }

  .timeline-card {
    padding: 1.25rem;
  }
}

/* ==========================================================================
   PRINT STYLESHEET (Clean CV Print / PDF Export)
   ========================================================================== */
@media print {
  body {
    background: #ffffff !important;
    color: #111827 !important;
  }

  .site-nav,
  .bg-ambient-layer,
  .bg-grid-pattern,
  .hero-cta-group,
  .project-filters,
  .project-actions,
  .contact-form-card,
  .site-footer,
  .theme-toggle-btn,
  .modal-overlay,
  .toast-container {
    display: none !important;
  }

  .glass-card {
    background: transparent !important;
    border: 1px solid #e5e7eb !important;
    box-shadow: none !important;
    backdrop-filter: none !important;
  }

  .text-gradient {
    -webkit-text-fill-color: #111827 !important;
    color: #111827 !important;
  }

  .hero-section {
    padding-top: 1rem;
    min-height: auto;
  }
}