/* ============================================
   CSS VARIABLES - BIO-CYBERPUNK THEME
============================================ */
/* Dark Mode (Default) */
:root {
  --neon-cyan: #00ffd5;
  --neon-magenta: #ff00ff;
  --neon-blue: #00a8ff;
  --neon-purple: #a855f7;
  --neon-green: #27ca40;

  --bg-primary: #0a0a0f;
  --bg-secondary: #0f0f18;
  --bg-card: #12121c;
  --bg-card-hover: #1a1a28;
  --bg-terminal: #0d0d14;

  --text-primary: #e4e4e7;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;

  --border-color: #27272a;
  --border-glow: rgba(0, 255, 213, 0.3);

  --gradient-cyan-magenta: linear-gradient(135deg, var(--neon-cyan), var(--neon-magenta));
  --gradient-card: linear-gradient(145deg, var(--bg-card), var(--bg-secondary));

  --glow-cyan: 0 0 20px rgba(0, 255, 213, 0.3);
  --glow-magenta: 0 0 20px rgba(255, 0, 255, 0.3);

  --grid-opacity: 0.03;
  --grid-glow-opacity: 0.1;
}

/* Light Mode - Clean Lab Aesthetic */
[data-theme="light"] {
  --neon-cyan: #0891b2;
  --neon-magenta: #c026d3;
  --neon-blue: #0284c7;
  --neon-purple: #7c3aed;
  --neon-green: #16a34a;

  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --bg-terminal: #1e293b;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  --border-color: #e2e8f0;
  --border-glow: rgba(8, 145, 178, 0.2);

  --gradient-cyan-magenta: linear-gradient(135deg, var(--neon-cyan), var(--neon-magenta));
  --gradient-card: linear-gradient(145deg, var(--bg-card), var(--bg-secondary));

  --glow-cyan: 0 0 20px rgba(8, 145, 178, 0.2);
  --glow-magenta: 0 0 20px rgba(192, 38, 211, 0.2);

  --grid-opacity: 0.06;
  --grid-glow-opacity: 0.05;
}

/* ============================================
   RESET & BASE STYLES
============================================ */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

/* Smooth transitions for theme switching */
*,
*::before,
*::after {
  transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}

.mono {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--neon-cyan);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--neon-magenta);
}

::selection {
  background: var(--neon-cyan);
  color: var(--bg-primary);
}

[data-theme="light"] ::selection {
  background: var(--neon-cyan);
  color: #ffffff;
}

a {
  color: var(--neon-cyan);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--neon-magenta);
}

/* ============================================
   GRID BACKGROUND
============================================ */
.grid-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(8, 145, 178, var(--grid-opacity)) 1px, transparent 1px),
    linear-gradient(90deg, rgba(8, 145, 178, var(--grid-opacity)) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: 0;
  transition: opacity 0.3s ease;
}

.grid-bg::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(8, 145, 178, var(--grid-glow-opacity)) 0%, transparent 50%);
}

/* ============================================
   NAVIGATION
============================================ */
.nav-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
}

[data-theme="light"] .nav-bar {
  background: rgba(248, 250, 252, 0.9);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 60px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
  text-decoration: none;
}

.nav-logo .bracket {
  color: var(--neon-cyan);
}

.nav-logo .name {
  background: var(--gradient-cyan-magenta);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-link {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.nav-link:hover {
  color: var(--neon-cyan);
  background: rgba(0, 255, 213, 0.1);
}

.nav-link.active {
  color: var(--neon-cyan);
}

.nav-link.active::before {
  content: '>';
  margin-right: 0.25rem;
  animation: blink 1s infinite;
}

@keyframes blink {

  0%,
  50% {
    opacity: 1;
  }

  51%,
  100% {
    opacity: 0;
  }
}

.nav-status {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.status-dot {
  width: 8px;
  height: 8px;
  background: var(--neon-cyan);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
    box-shadow: 0 0 0 0 rgba(0, 255, 213, 0.4);
  }

  50% {
    opacity: 0.8;
    box-shadow: 0 0 0 8px rgba(0, 255, 213, 0);
  }
}

.mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

/* Detailed Animated Theme Toggle */
.theme-switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 26px;
  margin-left: 1rem;
  /* Adjusted scale to fit navbar */
  transform: scale(0.8);
}

.theme-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background: linear-gradient(skyblue, cadetblue);
  box-shadow: inset 0 0 3px;
  transition: 0.4s;
  filter: drop-shadow(0 0 2px var(--bg-primary));
  overflow: hidden;
  z-index: 1;
}

.slider::before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 3px;
  bottom: 3px;
  background-color: #ffd700;
  transition: 0.4s;
  box-shadow:
    inset 0 -1px 2px #987416,
    0 1px 2px rgba(128, 128, 128, 0.5),
    0 0 0 10px rgba(255, 255, 255, 0.1),
    0 0 0 20px rgba(255, 255, 255, 0.1),
    10px 0 0 20px rgba(255, 255, 255, 0.1);
}

input:checked+.slider {
  background: linear-gradient(-45deg, #222, #000030);
  filter: drop-shadow(0 0 2px #ffffff);
}

input:checked+.slider:before {
  background: #dddddd;
  transform: translateX(34px);
  box-shadow:
    inset 0 -1px 2px #808080,
    0 1px 2px #555555,
    0 0 0 10px rgba(255, 255, 255, 0.1),
    0 0 0 20px rgba(255, 255, 255, 0.1),
    -10px 0 0 20px rgba(255, 255, 255, 0.1);
}

.slider::after {
  content: "";
  position: absolute;
  background: #535370;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  bottom: 65%;
  right: 16%;
  box-shadow:
    -8px 7px 0 3px #535370,
    2px 10px 0 #535370;
  transition: .4s;
  transform: scale(0) rotate(360deg);
  filter: saturate(.75);
}

input:checked+.slider::after {
  transform: scale(1) rotate(-24deg);
}

input:checked+.slider .background {
  transform: translateY(260%);
  opacity: 0;
}

.star {
  transform: scale(0);
  transition: .4s;
}

input:checked+.slider .star {
  position: absolute;
  width: 0;
  height: 0;
  border: 10px solid transparent;
  border-bottom: 7px solid #ffffff;
  transform: rotate(35deg);
  border-top: none;
  margin: 5px 0;
  transform: scale(.3) translate(50%);
}

input:checked+.slider .star:last-child {
  transform: scale(.4) translate(225%, 300%);
}

input:checked+.slider .star::before,
input:checked+.slider .star::after {
  content: "";
  position: absolute;
  width: 0;
  height: 0;
  border-top: none;
}

input:checked+.slider .star::before {
  border: 3px solid transparent;
  border-bottom: 8px solid #ffffff;
  transform: rotate(35deg);
  top: -7.5px;
  left: 1.5px;
}

input:checked+.slider .star::after {
  border: 10px solid transparent;
  border-bottom: 7px solid #ffffff;
  transform: rotate(70deg);
  top: -7px;
  left: -4.5px;
}

.slider.round {
  border-radius: 34px;
}

.slider.round:before {
  border-radius: 50%;
}

.background {
  position: absolute;
  width: 10px;
  height: 10px;
  background: #ffffff;
  border-radius: 50%;
  bottom: 0;
  right: 0;
  box-shadow:
    0 -10px 0 8px #ffffff,
    -10px 0px 0 8px #ffffff,
    -45px 4px 0 5px #ffffff,
    -60px 0px 0 3px #ffffff,
    -29px 2px 0 8px #ffffff;
  transition: .4s;
}





@media (max-width: 900px) {

  .nav-links,
  .nav-status {
    display: none;
  }

  .mobile-toggle {
    display: block;
  }

  .theme-toggle {
    margin-left: 0.5rem;
  }
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem;
  z-index: 999;
}

[data-theme="light"] .mobile-menu {
  background: rgba(248, 250, 252, 0.98);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.mobile-menu.active {
  display: block;
}

.mobile-menu a {
  display: block;
  padding: 0.75rem;
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  border-radius: 4px;
}

.mobile-menu a:hover {
  background: rgba(0, 255, 213, 0.1);
  color: var(--neon-cyan);
}

/* ============================================
   SECTION COMMON STYLES
============================================ */
section {
  padding: 4rem 2rem;
  position: relative;
  z-index: 1;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--neon-cyan);
  margin-bottom: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(0, 255, 213, 0.1);
  border-radius: 4px;
  border: 1px solid rgba(0, 255, 213, 0.2);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: 1rem;
}

.section-description {
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
}

/* ============================================
   BUTTONS
============================================ */
.btn {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.875rem 1.5rem;
  border-radius: 6px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--neon-cyan);
  color: var(--bg-primary);
}

.btn-primary:hover {
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
  color: var(--bg-primary);
}

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

.btn-outline:hover {
  background: rgba(0, 255, 213, 0.1);
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
}

/* ============================================
   HERO SECTION
============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6rem 2rem 2rem;
}

.hero-container {
  max-width: 1400px;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content {
  animation: fadeInUp 0.8s ease;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-subtitle {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--neon-cyan);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.hero-subtitle::before {
  content: '//';
  color: var(--text-muted);
}

.hero-title {
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.hero-title .gradient-text {
  background: none;
  -webkit-text-fill-color: initial;
  color: var(--neon-cyan);
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* DNA Helix */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.dna-container {
  width: 300px;
  height: 400px;
  position: relative;
  perspective: 1000px;
  cursor: pointer;
}

.dna-helix {
  position: absolute;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  animation: rotate 20s linear infinite;
}

.dna-container:hover .dna-helix {
  animation-play-state: paused;
}

@keyframes rotate {
  from {
    transform: rotateY(0deg);
  }

  to {
    transform: rotateY(360deg);
  }
}

.base-pair {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 60px;
  transition: all 0.5s ease;
}

.nucleotide {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.nucleotide.adenine {
  background: var(--neon-cyan);
  box-shadow: 0 0 15px var(--neon-cyan);
}

.nucleotide.thymine {
  background: var(--neon-magenta);
  box-shadow: 0 0 15px var(--neon-magenta);
}

.nucleotide.guanine {
  background: var(--neon-blue);
  box-shadow: 0 0 15px var(--neon-blue);
}

.nucleotide.cytosine {
  background: var(--neon-purple);
  box-shadow: 0 0 15px var(--neon-purple);
}

.bond {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-magenta));
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0.6;
  transition: all 0.5s ease;
}

.dna-container:hover .nucleotide {
  border-radius: 2px;
  width: 20px;
  height: 30px;
}

.dna-container:hover .nucleotide.adenine,
.dna-container:hover .nucleotide.guanine {
  transform: translateX(-5px);
}

.dna-container:hover .nucleotide.thymine,
.dna-container:hover .nucleotide.cytosine {
  transform: translateX(5px);
}

/* Nucleotide Content (Letters & Brackets) */
.nucleotide::after {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: bold;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--bg-primary);
}

/* Default: Show Letters */
.nucleotide.adenine::after {
  content: 'A';
}

.nucleotide.thymine::after {
  content: 'T';
}

.nucleotide.guanine::after {
  content: 'G';
}

.nucleotide.cytosine::after {
  content: 'C';
}

/* Hover: Show Code Brackets */
.dna-container:hover .nucleotide::after {
  font-size: 14px;
}

.dna-container:hover .nucleotide.adenine::after {
  content: '{';
}

.dna-container:hover .nucleotide.thymine::after {
  content: '}';
}

.dna-container:hover .nucleotide.guanine::after {
  content: '[';
}

.dna-container:hover .nucleotide.cytosine::after {
  content: ']';
}

.dna-label {
  position: absolute;
  bottom: -30px;
  left: 50%;
  transform: translateX(-50%);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--text-muted);
  opacity: 0.7;
  white-space: nowrap;
}

/* ============================================
   BENTO BOX GRID
============================================ */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.bento-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

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

.bento-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at top right, rgba(0, 255, 213, 0.05), transparent 40%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.bento-card.ngs {
  --card-accent: var(--neon-cyan);
}

.bento-card.data {
  --card-accent: var(--neon-magenta);
}

.bento-card.ecology {
  --card-accent: var(--neon-green);
  /* Changed to green/orange for distinction */
  --card-accent: #ff6b35;
}

.bento-card:hover {
  border-color: var(--card-accent);
  box-shadow: 0 0 20px rgba(var(--card-accent), 0.2);
}

.card-icon {
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--card-accent);
  margin-bottom: 1.5rem;
  transition: all 0.3s ease;
}

.bento-card:hover .card-icon {
  background: var(--card-accent);
  color: var(--bg-primary);
  transform: scale(1.1) rotate(5deg);
}

.card-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  display: block;
}

.card-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.card-description {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.card-skills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.skill-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: all 0.2s ease;
}

.card-stats {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.5rem;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  flex: 1;
}

.stat-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--card-accent);
  display: block;
}

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

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

.carousel {
  position: relative;
  margin-bottom: 2rem;
  padding: 0 1.5rem;
}

.carousel-wrapper {
  overflow: hidden;
}

.carousel-container {
  display: flex;
  transition: transform 0.5s ease-in-out;
}

.carousel-slide {
  min-width: 50%;
  padding: 0 0.5rem;
  box-sizing: border-box;
}

.carousel-slide:first-child {
  padding-left: 0;
}

.carousel-slide:last-child {
  padding-right: 0;
}

.carousel-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.carousel-card-header {
  display: flex;
  gap: 1.25rem;
  margin-bottom: 1rem;
}

.project-visual {
  width: 100px;
  height: 100px;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
}

/* Simplified icon-based visuals for small boxes */
.visual-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--neon-cyan);
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-card) 100%);
}

.visual-icon.microbiome {
  color: var(--neon-cyan);
}

.visual-icon.biodiversity {
  color: var(--neon-magenta);
}

.visual-icon.code {
  color: var(--neon-purple);
}

.visual-icon.lab {
  color: var(--neon-cyan);
}

.visual-icon.cloud {
  color: var(--neon-blue);
}

.visual-icon i {
  opacity: 0.9;
}

/* Light mode for visual icons */
[data-theme="light"] .visual-icon {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, #e2e8f0 100%);
}

.carousel-card-title {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.carousel-card-title h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: var(--text-primary);
}

.carousel-card-title .subtitle {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--neon-cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.carousel-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.carousel-content p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-size: 0.9rem;
  line-height: 1.5;
  flex: 1;
}

.carousel-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.carousel-tags span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  padding: 0.25rem 0.5rem;
  background: rgba(0, 255, 213, 0.1);
  border: 1px solid var(--neon-cyan);
  border-radius: 4px;
  color: var(--neon-cyan);
}

.carousel-link {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--neon-cyan);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: auto;
}

.carousel-link:hover {
  color: var(--neon-magenta);
}

[data-theme="light"] .carousel-tags span {
  background: rgba(8, 145, 178, 0.1);
}

.carousel-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(10, 10, 15, 0.8);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 24px;
  height: 24px;
  font-size: 0.65rem;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  z-index: 10;
}

.carousel-nav:hover {
  background: var(--neon-cyan);
  color: var(--bg-primary);
  border-color: var(--neon-cyan);
}

.carousel-nav.prev {
  left: 0;
}

.carousel-nav.next {
  right: 0;
}

[data-theme="light"] .carousel-nav {
  background: rgba(255, 255, 255, 0.9);
  border-color: var(--border-color);
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border-color);
  cursor: pointer;
  transition: all 0.2s;
}

.carousel-dot.active {
  background: var(--neon-cyan);
  width: 24px;
  border-radius: 5px;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
  justify-content: center;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  transition: all 0.3s ease;
}

.project-card:hover {
  border-color: var(--neon-cyan);
  transform: translateY(-4px);
  box-shadow: var(--glow-cyan);
}

.project-card h4 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.project-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.project-card .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.project-card .tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  padding: 0.25rem 0.5rem;
  background: rgba(255, 255, 255, 0.05);
  background: var(--bg-secondary);
}

/* ============================================
   EXPERIENCE SECTION
============================================ */
.experience-grid {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  padding: 2rem 0;
}

/* Central timeline line */
.experience-grid::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--neon-cyan), var(--neon-magenta), var(--neon-purple));
  transform: translateX(-50%);
  z-index: 0;
}

.experience-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  margin-bottom: 3rem;
  width: calc(50% - 3rem);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

/* Alternating left/right */
.experience-card:nth-child(odd) {
  margin-left: 0;
  margin-right: auto;
}

.experience-card:nth-child(even) {
  margin-left: auto;
  margin-right: 0;
}

/* Timeline dot connector */
.experience-card::after {
  content: '';
  position: absolute;
  top: 2.5rem;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 3px solid var(--neon-cyan);
  z-index: 1;
  transition: all 0.3s ease;
}

.experience-card:nth-child(odd)::after {
  right: -3.5rem;
}

.experience-card:nth-child(even)::after {
  left: -3.5rem;
}

.experience-card:hover::after {
  background: var(--neon-cyan);
  box-shadow: 0 0 20px var(--neon-cyan);
  transform: scale(1.2);
}

.experience-card.current::after {
  background: var(--neon-cyan);
  box-shadow: 0 0 0 6px rgba(0, 255, 213, 0.2);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {

  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(0, 255, 213, 0.7);
  }

  50% {
    box-shadow: 0 0 0 10px rgba(0, 255, 213, 0);
  }
}

.experience-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-magenta));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.experience-card:hover {
  transform: translateY(-8px);
  border-color: var(--neon-cyan);
  box-shadow: 0 20px 40px rgba(0, 255, 213, 0.15);
}

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

.experience-card.current {
  border-color: var(--neon-cyan);
  background: linear-gradient(145deg, var(--bg-card), rgba(0, 255, 213, 0.03));
}

.experience-card.current::before {
  opacity: 1;
}

.experience-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.5rem;
  gap: 1rem;
}

.experience-icon {
  width: 60px;
  height: 60px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  background: linear-gradient(135deg, rgba(0, 255, 213, 0.1), rgba(255, 0, 255, 0.1));
  border: 1px solid rgba(0, 255, 213, 0.2);
  color: var(--neon-cyan);
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.experience-card:hover .experience-icon {
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-magenta));
  color: var(--bg-primary);
  box-shadow: 0 0 30px rgba(0, 255, 213, 0.4);
  transform: scale(1.05);
}

.experience-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.5rem;
}

.experience-date {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--neon-cyan);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.experience-date i {
  font-size: 0.7rem;
}

.experience-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  padding: 0.25rem 0.75rem;
  border-radius: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.current-badge {
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-magenta));
  color: var(--bg-primary);
  font-weight: 600;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(0, 255, 213, 0.7);
  }

  50% {
    box-shadow: 0 0 0 8px rgba(0, 255, 213, 0);
  }
}

.experience-content {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.experience-title {
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.experience-company,
.experience-location {
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.experience-company i,
.experience-location i {
  font-size: 0.8rem;
  color: var(--neon-magenta);
  opacity: 0.7;
}

.experience-description {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
}

.experience-description li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 0.75rem;
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}

.experience-description li i {
  color: var(--neon-cyan);
  font-size: 0.75rem;
  margin-top: 0.35rem;
  flex-shrink: 0;
}

.experience-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.experience-tags .tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  padding: 0.375rem 0.75rem;
  background: rgba(0, 255, 213, 0.1);
  border: 1px solid rgba(0, 255, 213, 0.3);
  border-radius: 6px;
  color: var(--neon-cyan);
  transition: all 0.2s ease;
}

.experience-card:hover .experience-tags .tag {
  background: rgba(0, 255, 213, 0.15);
  border-color: var(--neon-cyan);
  transform: translateY(-2px);
}

[data-theme="light"] .experience-icon {
  background: linear-gradient(135deg, rgba(8, 145, 178, 0.1), rgba(168, 85, 247, 0.1));
  border-color: rgba(8, 145, 178, 0.2);
}

[data-theme="light"] .experience-card:hover .experience-icon {
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-magenta));
}

[data-theme="light"] .experience-tags .tag {
  background: rgba(8, 145, 178, 0.1);
  border-color: rgba(8, 145, 178, 0.3);
}

/* ============================================
   PUBLICATIONS SECTION
============================================ */
.publications-list {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.publication-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  transition: all 0.3s ease;
}

.publication-card:hover {
  border-color: var(--neon-cyan);
}

.publication-card p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.publication-card strong {
  color: var(--neon-cyan);
}

.publication-card em {
  color: var(--text-primary);
}

.publication-card a {
  margin-left: 0.5rem;
}

/* ============================================
   CONTACT SECTION
============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  max-width: 1000px;
  margin: 0 auto;
}

.contact-info h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.contact-info p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 1.25rem;
  transition: all 0.3s ease;
  width: 50px;
  height: 50px;
}

.social-link:hover {
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
  transform: translateY(-2px);
}

.social-link img {
  transition: filter 0.3s ease;
  filter: invert(1);
  opacity: 0.8;
}

[data-theme="light"] .social-link img {
  filter: invert(0);
  opacity: 0.7;
}

.social-link:hover img {
  opacity: 1;
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
}

.contact-form form {
  display: flex;
  flex-direction: column;
  flex: 1;
}

/* Expand message area to fill space */
.contact-form .form-group:nth-of-type(2) {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.contact-form textarea {
  flex: 1;
}

.contact-form h3 {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: all 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--neon-cyan);
  box-shadow: 0 0 0 3px rgba(0, 255, 213, 0.1);
}

.form-group textarea {
  resize: none;
  min-height: 120px;
}

.contact-form .btn {
  width: 100%;
  justify-content: center;
}


/* ============================================
   FOOTER
============================================ */
.footer {
  padding: 3rem 2rem;
  border-top: 1px solid var(--border-color);
  position: relative;
  z-index: 1;
}

.footer-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--text-muted);
}

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

/* ============================================
   RESPONSIVE
============================================ */
@media (max-width: 768px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }

  .hero-description {
    margin: 0 auto 2rem;
  }

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

  .hero-visual {
    order: -1;
  }

  .dna-container {
    width: 200px;
    height: 280px;
  }

  .bento-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }

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

@media (max-width: 768px) {
  section {
    padding: 4rem 1rem;
  }

  .nav-container {
    padding: 0 1rem;
  }

  /* Mobile: show 1 card at a time */
  .carousel-slide {
    min-width: 100%;
    padding: 0;
  }

  .carousel {
    padding: 0 1rem;
  }

  .carousel-card {
    padding: 1.25rem;
  }

  .carousel-card-header {
    gap: 1rem;
  }

  .project-visual {
    width: 70px;
    height: 70px;
    font-size: 1.75rem;
  }

  .carousel-nav {
    width: 20px;
    height: 20px;
    font-size: 0.55rem;
  }

  .carousel-nav.prev {
    left: 0;
  }

  .carousel-nav.next {
    right: 0;
  }

  .carousel-card-title h3 {
    font-size: 1.1rem;
  }

  .carousel-content p {
    font-size: 0.85rem;
  }

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

  /* Timeline Mobile Styles */
  .experience-grid {
    padding-left: 2rem;
  }

  .experience-grid::before {
    left: 0;
    transform: none;
  }

  .experience-card {
    width: 100%;
    margin-left: 0 !important;
    margin-right: 0 !important;
    padding: 1.5rem;
    margin-bottom: 2rem;
  }

  .experience-card::after {
    left: -2.6rem !important;
    right: auto !important;
    top: 2rem;
  }

  .experience-icon {
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }

  /* Responsive Radar Plot */
  #radarChart {
    max-width: 100%;
    width: 100%;
    height: auto;
  }
}

/* ============================================
   ANIMATIONS & INTERACTIONS
============================================ */

/* Reveal on Scroll */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

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

/* Staggered delays for grids */
.reveal.delay-100 {
  transition-delay: 0.1s;
}

.reveal.delay-200 {
  transition-delay: 0.2s;
}

.reveal.delay-300 {
  transition-delay: 0.3s;
}

/* Tech Stack Grayscale Effect */
.tech-item img,
.tech-item i {
  filter: grayscale(100%) opacity(0.5);
  transition: all 0.4s ease;
  transform: scale(1);
}

.tech-item:hover img,
.tech-item:hover i {
  filter: grayscale(0%) opacity(1);
  transform: scale(1.1);
  filter: drop-shadow(0 0 8px rgba(0, 255, 213, 0.5));
}