/* ===================================================
   VARUN GURUPURANDAR — AI/ML PORTFOLIO
   Design: Dark futuristic, editorial, monospace accents
   =================================================== */

/* ---- CSS Variables ---- */
:root {
  --bg: #080b12;
  --bg2: #0d1120;
  --bg3: #111827;
  --surface: rgba(255,255,255,0.04);
  --surface-hover: rgba(255,255,255,0.07);
  --border: rgba(255,255,255,0.08);
  --border-bright: rgba(255,255,255,0.15);

  --accent: #00f5a0;
  --accent2: #00d9f5;
  --accent3: #7c6eff;
  --accent-glow: rgba(0, 245, 160, 0.15);

  --text: #f0f4ff;
  --text-secondary: #8b9ab8;
  --text-muted: #4a5568;

  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'DM Mono', monospace;

  --radius: 12px;
  --radius-lg: 20px;
  --nav-h: 72px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  cursor: none;
  line-height: 1.6;
}
a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }
ul { list-style: none; }

/* ---- Canvas Background ---- */
#bg-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ---- Custom Cursor ---- */
.cursor-dot {
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s;
}
.cursor-ring {
  width: 36px; height: 36px;
  border: 1.5px solid rgba(0, 245, 160, 0.5);
  border-radius: 50%;
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: all 0.15s ease;
}
body:hover .cursor-dot { width: 8px; height: 8px; }

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-bright); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ---- Navbar ---- */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  z-index: 1000;
  background: transparent;
  transition: background var(--transition), backdrop-filter var(--transition);
}
#navbar.scrolled {
  background: rgba(8, 11, 18, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--text);
}
.logo-bracket { color: var(--accent); }
.nav-links {
  display: flex;
  gap: 22px;
  align-items: center;
}
.nav-link {
  font-family: var(--font-mono);
  font-size: 0.71rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color var(--transition);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width var(--transition);
}
.nav-link:hover { color: var(--accent); }
.nav-link.active { color: var(--accent); }
.nav-link.active::after { width: 100%; }
.nav-cta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 8px 18px;
  border-radius: 6px;
  transition: all var(--transition);
}
.nav-cta:hover {
  background: var(--accent);
  color: var(--bg);
}
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: none;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile Nav */
.mobile-nav {
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  background: rgba(8, 11, 18, 0.97);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  z-index: 999;
  transform: translateY(-110%);
  transition: transform var(--transition);
}
.mobile-nav.open { transform: translateY(0); }
.mobile-nav ul { padding: 20px 40px 30px; }
.mobile-nav li { padding: 12px 0; border-bottom: 1px solid var(--border); }
.mobile-link {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.mobile-resume {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--accent);
  padding: 12px 20px;
  border-radius: 8px;
  transition: all var(--transition);
}
.mobile-resume:hover {
  background: #00e892;
  box-shadow: 0 0 24px rgba(0, 245, 160, 0.35);
}

/* ---- Section Base ---- */
.section {
  position: relative;
  z-index: 1;
  padding: 100px 0;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}
.section-label {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}
.label-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.15em;
}
.label-text {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 48px;
  color: var(--text);
}
.accent {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---- Reveal Animations ---- */
.reveal-up {
  opacity: 0;
  transform: translateY(40px);
  animation: revealUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  animation: revealRight 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
@keyframes revealUp {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes revealRight {
  to { opacity: 1; transform: translateX(0); }
}

/* Scroll-triggered */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.scroll-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Buttons ---- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: var(--bg);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  padding: 14px 28px;
  border-radius: 8px;
  border: none;
  cursor: none;
  transition: all var(--transition);
  text-transform: uppercase;
}
.btn-primary:hover {
  background: #00e892;
  box-shadow: 0 0 30px rgba(0, 245, 160, 0.35);
  transform: translateY(-2px);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  padding: 13px 28px;
  border-radius: 8px;
  border: 1px solid var(--border-bright);
  cursor: none;
  transition: all var(--transition);
  text-transform: uppercase;
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}
.w-full { width: 100%; justify-content: center; }

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr);
  align-items: center;
  gap: 56px;
  padding: calc(var(--nav-h) + 40px) 56px 80px;
  max-width: 1320px;
  margin: 0 auto;
  z-index: 1;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -80px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(0, 245, 160, 0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -60px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 217, 245, 0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}
.hero-content {
  max-width: 100%;
  position: relative;
  z-index: 3;
  min-width: 0;
}
.hero-name {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 4.2vw, 3.85rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  color: var(--text);
  word-break: keep-all;
}
@media (min-width: 900px) {
  .hero-name {
    white-space: nowrap;
    font-size: clamp(2.75rem, 3.6vw, 3.85rem);
  }
}
.name-accent {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 55%, var(--accent3) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 245, 160, 0.08);
  border: 1px solid rgba(0, 245, 160, 0.2);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 28px;
  text-transform: uppercase;
}
.tag-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}
.hero-typing {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  margin-bottom: 20px;
  min-height: 2em;
}
.typing-prefix { color: var(--text-muted); }
.typing-text { color: var(--accent2); }
.typing-cursor {
  color: var(--accent);
  animation: blink 1s step-end infinite;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }
.hero-description {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
  max-width: 520px;
}
.hero-roles {
  margin-bottom: 32px;
  max-width: 560px;
}
.roles-heading {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.role-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}
.role-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  padding: 6px 14px;
  border-radius: 100px;
  background: rgba(124, 110, 255, 0.1);
  border: 1px solid rgba(124, 110, 255, 0.25);
  color: var(--accent3);
}
.availability-line {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.availability-line svg {
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--accent);
}
.availability-line strong { color: var(--text); }
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  padding-top: 32px;
  margin-top: 8px;
  border-top: 1px solid var(--border);
}
.stat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 20px 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
  transition: border-color var(--transition), background var(--transition);
}
.stat-card:hover {
  border-color: rgba(0, 245, 160, 0.25);
  background: rgba(0, 245, 160, 0.04);
}
.stat-value {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 1px;
  line-height: 1;
}
.stat-num {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--accent);
}
.stat-suffix {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}
.stat-label {
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--text);
  line-height: 1.3;
}

/* Hero Visual */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 380px;
  max-width: 240px;
  width: 100%;
  justify-self: end;
  z-index: 1;
  flex-shrink: 0;
}
.photo-frame {
  position: relative;
  width: 220px; height: 270px;
}
.photo-glow {
  position: absolute;
  inset: -20px;
  background: radial-gradient(ellipse, rgba(0, 245, 160, 0.12) 0%, transparent 70%);
  border-radius: 50%;
}
.hero-photo {
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: 20px;
  position: relative;
  z-index: 2;
  filter: grayscale(10%) contrast(1.05);
}
.photo-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(0, 245, 160, 0.15);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  animation: ringPulse 4s ease-in-out infinite;
}
.ring-1 { width: 250px; height: 250px; animation-delay: 0s; }
.ring-2 { width: 290px; height: 290px; animation-delay: 1s; }
@keyframes ringPulse {
  0%, 100% { opacity: 0.3; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 0.6; transform: translate(-50%, -50%) scale(1.03); }
}

/* Floating Badges */
.tech-badge {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  padding: 8px 14px;
  border-radius: 8px;
  background: rgba(13, 17, 32, 0.9);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-bright);
  color: var(--text);
  z-index: 10;
  white-space: nowrap;
}
.badge-pytorch { top: 8%; right: -6%; border-color: rgba(238, 76, 44, 0.4); color: #ee4c2c; }
.badge-nlp { top: 32%; right: -8%; border-color: rgba(0, 217, 245, 0.4); color: var(--accent2); }
.badge-docker { bottom: 28%; right: -6%; border-color: rgba(30, 144, 213, 0.4); color: #1e90d5; }
.badge-sql { bottom: 10%; right: 4%; border-color: rgba(124, 110, 255, 0.4); color: var(--accent3); }

.float-1 { animation: floatBadge 5s ease-in-out infinite; }
.float-2 { animation: floatBadge 6s ease-in-out infinite reverse; }
.float-3 { animation: floatBadge 4.5s ease-in-out infinite 0.5s; }
.float-4 { animation: floatBadge 5.5s ease-in-out infinite 1s; }
@keyframes floatBadge {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.hero-scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  writing-mode: vertical-lr;
}
.scroll-line {
  width: 1px; height: 50px;
  background: linear-gradient(to bottom, var(--text-muted), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ---- ABOUT ---- */
.about { background: var(--bg2); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.about-body {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}
.about-body strong { color: var(--text); }
.about-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}
.social-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 8px 16px;
  border-radius: 8px;
  transition: all var(--transition);
}
.social-chip:hover {
  background: var(--accent-glow);
  border-color: var(--accent);
  color: var(--accent);
}
.focus-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 24px;
  font-family: var(--font-mono);
}
.focus-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.focus-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 24px;
  border-radius: var(--radius);
  transition: all var(--transition);
}
.focus-card:hover {
  border-color: var(--border-bright);
  background: var(--surface-hover);
  transform: translateY(-3px);
}
.focus-icon { font-size: 1.5rem; margin-bottom: 12px; }
.focus-card h4 {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}
.focus-card p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ---- OPEN TO WORK / AVAILABILITY ---- */
.availability-section {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.availability-lede {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin-bottom: 40px;
  line-height: 1.7;
}
.auth-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}
.auth-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all var(--transition);
}
.auth-card:hover {
  border-color: rgba(0, 245, 160, 0.3);
  background: var(--surface-hover);
  transform: translateY(-3px);
}
.auth-icon {
  font-size: 1.5rem;
  margin-bottom: 14px;
}
.auth-card h3 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}
.auth-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.65;
}
.auth-card p strong { color: var(--text); }
.availability-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ---- SKILLS ---- */
.skills { background: var(--bg); }
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}
.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
}
.skill-card:hover {
  border-color: var(--border-bright);
  background: var(--surface-hover);
}
.skill-card-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}
.skill-icon-wrap {
  width: 44px; height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.python-bg { background: rgba(255, 214, 10, 0.12); color: #ffd60a; }
.sql-bg { background: rgba(30, 144, 213, 0.12); color: #1e90d5; }
.docker-bg { background: rgba(30, 144, 213, 0.12); color: #1e90d5; }
.ai-bg { background: rgba(124, 110, 255, 0.12); color: var(--accent3); }
.skill-card-header h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tools-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 36px;
}
.tools-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.tools-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tools-tags span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  padding: 6px 14px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: all var(--transition);
}
.tools-tags span:hover {
  border-color: rgba(0, 245, 160, 0.3);
  color: var(--accent);
}
.tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: 4px;
  background: rgba(255,255,255,0.05);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.skill-bar-wrap {
  height: 2px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}
.skill-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 2px;
  width: 0;
  transition: width 1.5s cubic-bezier(0.22, 1, 0.36, 1);
}

/* Language bars */
.lang-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
}
.lang-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 28px;
}
.lang-bars { display: flex; flex-direction: column; gap: 20px; }
.lang-item {
  display: grid;
  grid-template-columns: 140px 1fr 40px;
  align-items: center;
  gap: 16px;
}
.lang-name {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
}
.lang-track {
  height: 3px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}
.lang-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 3px;
  width: 0;
  transition: width 1.8s cubic-bezier(0.22, 1, 0.36, 1);
}
.lang-pct {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  text-align: right;
}

/* ---- PROJECTS ---- */
.projects { background: var(--bg2); }
.projects-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.project-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.more-projects-header .project-filters {
  margin-bottom: 0;
}
.filter-btn {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 18px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: none;
  transition: all var(--transition);
}
.filter-btn.active, .filter-btn:hover {
  background: var(--accent-glow);
  border-color: var(--accent);
  color: var(--accent);
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}
.project-card:hover {
  border-color: rgba(0, 245, 160, 0.25);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 40px rgba(0, 245, 160, 0.06);
}
.project-card.hidden { display: none; }
.project-img-wrap {
  position: relative;
  height: 200px;
  overflow: hidden;
}
.project-img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
  filter: brightness(0.7);
}
.project-card:hover .project-img { transform: scale(1.05); filter: brightness(0.5); }
.project-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}
.project-card:hover .project-overlay { opacity: 1; }
.overlay-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: var(--bg);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 10px 20px;
  border-radius: 8px;
  transition: all var(--transition);
}
.overlay-btn:hover {
  background: #00e892;
  transform: scale(1.05);
}
.project-info { padding: 24px; }
.project-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.project-category {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 4px;
}
.nlp-cat { background: rgba(124, 110, 255, 0.12); color: var(--accent3); }
.ml-cat { background: rgba(0, 245, 160, 0.1); color: var(--accent); }
.eng-cat { background: rgba(30, 144, 213, 0.12); color: var(--accent2); }
.project-year {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
}
.project-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.3;
}
.project-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}
.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.project-tech span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(255,255,255,0.04);
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.projects-cta { text-align: center; }

.projects-lede {
  max-width: 640px;
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-top: -32px;
  margin-bottom: 48px;
}

/* ---- FEATURED CASE STUDIES ---- */
.featured-cases {
  display: flex;
  flex-direction: column;
  gap: 32px;
  margin-bottom: 72px;
}

.case-study {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}
.case-study:hover {
  border-color: var(--border-bright);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

.case-accent-bar {
  height: 3px;
  width: 100%;
}
.toyota-case .case-accent-bar {
  background: linear-gradient(90deg, var(--accent3), var(--accent));
}
.epifai-case .case-accent-bar {
  background: linear-gradient(90deg, var(--accent2), #1e90d5);
}
.cdio-case .case-accent-bar {
  background: linear-gradient(90deg, var(--accent), #ffd60a);
}

.case-inner { padding: 36px 40px; }

.case-top { margin-bottom: 28px; }

.case-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.case-type {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 4px;
}
.thesis-case-type { background: rgba(124, 110, 255, 0.12); color: var(--accent3); }
.exp-case-type { background: rgba(0, 217, 245, 0.1); color: var(--accent2); }
.cdio-case-type { background: rgba(0, 245, 160, 0.1); color: var(--accent); }

.case-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.case-title {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.65rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.25;
  margin-bottom: 8px;
}

.case-org {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.case-hook {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.75;
  padding-left: 16px;
  border-left: 2px solid var(--border-bright);
}

.case-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 32px;
}

.metric-box {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
  transition: border-color var(--transition);
}
.case-study:hover .metric-box { border-color: var(--border-bright); }

.metric-value {
  display: block;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
  margin-bottom: 6px;
}
.epifai-case .metric-value { color: var(--accent2); }
.cdio-case .metric-value { color: #ffd60a; }

.metric-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  line-height: 1.4;
}

.case-columns {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 32px;
  margin-bottom: 28px;
}

.case-block-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.epifai-case .case-block-title { color: var(--accent2); }
.cdio-case .case-block-title { color: #ffd60a; }

.case-block p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

.case-list {
  list-style: none;
}
.case-list li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
  padding: 6px 0 6px 18px;
  position: relative;
}
.case-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}
.epifai-case .case-list li::before { color: var(--accent2); }
.cdio-case .case-list li::before { color: #ffd60a; }
.case-list strong { color: var(--text); }

.case-outcome {
  background: rgba(0, 245, 160, 0.04);
  border: 1px solid rgba(0, 245, 160, 0.12);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 24px;
}
.epifai-case .case-outcome {
  background: rgba(0, 217, 245, 0.04);
  border-color: rgba(0, 217, 245, 0.12);
}

.outcome-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.epifai-case .outcome-label { color: var(--accent2); }

.case-outcome p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.case-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  transition: color var(--transition);
}
.case-link:hover { color: #00e892; }

.case-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.case-tech span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

/* ---- LIVE LAB ---- */
.live-lab-section {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.live-lab-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}
.live-lab-lede {
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 620px;
  line-height: 1.7;
  margin-top: 12px;
}
.live-lab-lede code {
  font-family: var(--font-mono);
  font-size: 0.82em;
  color: var(--accent);
  background: rgba(0, 245, 160, 0.08);
  padding: 2px 8px;
  border-radius: 4px;
}
.live-lab-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.live-filter-btn {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 14px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}
.live-filter-btn:hover,
.live-filter-btn.active {
  border-color: rgba(0, 245, 160, 0.35);
  color: var(--accent);
  background: rgba(0, 245, 160, 0.06);
}
.live-projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.live-projects-loading,
.live-projects-empty {
  grid-column: 1 / -1;
  font-size: 0.9rem;
  color: var(--text-muted);
  padding: 24px;
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
}
.live-projects-empty code {
  font-family: var(--font-mono);
  color: var(--accent);
}
.live-project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: all var(--transition);
}
.live-project-card:hover {
  border-color: rgba(0, 245, 160, 0.3);
  transform: translateY(-3px);
}
.live-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.live-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 100px;
  border: 1px solid var(--border);
}
.live-status-live {
  color: var(--accent);
  background: rgba(0, 245, 160, 0.08);
  border-color: rgba(0, 245, 160, 0.25);
}
.live-status-building {
  color: #f5a623;
  background: rgba(245, 166, 35, 0.08);
  border-color: rgba(245, 166, 35, 0.25);
}
.live-status-upcoming {
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.03);
}
.live-pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(0, 245, 160, 0.5);
  animation: livePulse 2s infinite;
}
@keyframes livePulse {
  0% { box-shadow: 0 0 0 0 rgba(0, 245, 160, 0.5); }
  70% { box-shadow: 0 0 0 8px rgba(0, 245, 160, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 245, 160, 0); }
}
.live-card-meta {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.live-card-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.35;
}
.live-card-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.65;
  flex: 1;
}
.live-card-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.live-card-stack span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--text-muted);
}
.live-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}
.live-card-btn {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 10px 16px;
  border-radius: 6px;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: all var(--transition);
}
.live-card-btn.primary {
  background: rgba(0, 245, 160, 0.1);
  border-color: rgba(0, 245, 160, 0.35);
  color: var(--accent);
}
.live-card-btn.primary:hover {
  background: var(--accent);
  color: var(--bg);
}
.live-card-btn.ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.live-card-btn.disabled {
  opacity: 0.55;
  cursor: default;
}

.more-projects-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.more-projects-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-muted);
}

.tl-summary {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 16px;
  font-style: italic;
}
.tl-see-more {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-style: normal;
  letter-spacing: 0.04em;
  transition: color var(--transition);
}
.tl-see-more:hover { color: #00e892; }

@media (max-width: 1024px) {
  .case-metrics { grid-template-columns: repeat(2, 1fr); }
  .case-columns { grid-template-columns: 1fr; gap: 24px; }
  .case-inner { padding: 28px 24px; }
}

@media (max-width: 768px) {
  .case-metrics { grid-template-columns: 1fr 1fr; }
  .more-projects-header { flex-direction: column; align-items: flex-start; }
  .projects-lede { margin-top: -16px; }
}

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

/* ---- TIMELINE ---- */
.timeline-section { background: var(--bg); }
.timeline-section .section-title {
  font-size: clamp(2.5rem, 4.5vw, 3.75rem);
  margin-bottom: 56px;
}
.timeline {
  position: relative;
  padding-left: 56px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 7px; top: 0; bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent), transparent);
}
.timeline-item {
  position: relative;
  margin-bottom: 56px;
}
.timeline-dot {
  position: absolute;
  left: -50px;
  top: 8px;
  width: 16px; height: 16px;
  border-radius: 50%;
  border: 2px solid;
}
.edu-dot { background: rgba(0, 245, 160, 0.2); border-color: var(--accent); }
.exp-dot { background: rgba(0, 217, 245, 0.2); border-color: var(--accent2); }
.thesis-dot { background: rgba(124, 110, 255, 0.2); border-color: var(--accent3); }
.timeline-content {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  transition: all var(--transition);
}
.timeline-content:hover {
  border-color: var(--border-bright);
  background: var(--surface-hover);
}
.tl-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 4px;
  margin-bottom: 16px;
}
.edu-badge { background: rgba(0, 245, 160, 0.1); color: var(--accent); }
.exp-badge { background: rgba(0, 217, 245, 0.1); color: var(--accent2); }
.thesis-badge { background: rgba(124, 110, 255, 0.12); color: var(--accent3); }
.tl-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}
.tl-header h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}
.tl-date {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-secondary);
  white-space: nowrap;
}
.tl-org {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 18px;
}
.tl-points {
  list-style: none;
  margin-bottom: 16px;
}
.tl-points li {
  font-size: 1rem;
  color: var(--text-secondary);
  padding: 6px 0 6px 20px;
  position: relative;
  line-height: 1.75;
}
.tl-points li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.tl-points strong { color: var(--text); }
.tl-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tl-tags span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  padding: 5px 12px;
  border-radius: 4px;
  background: var(--surface);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

/* ---- PUBLICATIONS ---- */
.publications-section { background: var(--bg); }
.pubs-lede {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin-bottom: 40px;
  line-height: 1.7;
}
.pubs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.pub-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 36px;
  transition: all var(--transition);
}
.pub-card:hover {
  border-color: rgba(0, 245, 160, 0.3);
  background: var(--surface-hover);
}
.pub-venue {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(0, 245, 160, 0.08);
  border: 1px solid rgba(0, 245, 160, 0.2);
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 16px;
}
.pub-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 12px;
  max-width: 900px;
}
.pub-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 800px;
}
.pub-card p strong { color: var(--text); }
.pub-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.pub-link {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 8px 16px;
  border-radius: 6px;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: all var(--transition);
}
.pub-link:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.pub-link.primary {
  background: rgba(0, 245, 160, 0.08);
  border-color: rgba(0, 245, 160, 0.3);
  color: var(--accent);
}
.pub-link.primary:hover {
  background: var(--accent);
  color: var(--bg);
}

/* ---- CERTIFICATIONS ---- */
.certs-section { background: var(--bg2); }
.certs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.cert-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  transition: all var(--transition);
}
.cert-card:hover {
  border-color: rgba(0, 245, 160, 0.35);
  background: var(--surface-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 245, 160, 0.08);
}
.cert-icon { font-size: 1.8rem; margin-bottom: 12px; }
.cert-card h4 {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.3;
}
.cert-card p {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.cert-tag {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 4px;
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid rgba(0, 245, 160, 0.2);
}

/* ---- CONTACT ---- */
.contact-section { background: var(--bg); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.contact-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
}
.contact-desc strong { color: var(--text); }
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.contact-item svg { color: var(--accent); flex-shrink: 0; }
.social-links {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
}
.social-btn {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition);
}
.social-btn:hover {
  background: var(--accent-glow);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.resume-dl { width: fit-content; }

/* Contact Form */
.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: border-color var(--transition);
  outline: none;
  resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  background: rgba(0, 245, 160, 0.03);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}
.form-status {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 16px;
  display: none;
}
.form-status.show { display: block; }
.form-status.success {
  background: rgba(0, 245, 160, 0.1);
  border: 1px solid rgba(0, 245, 160, 0.3);
  color: var(--accent);
}
.form-status.error {
  background: rgba(255, 80, 80, 0.08);
  border: 1px solid rgba(255, 80, 80, 0.25);
  color: #ff8080;
}

/* ---- FOOTER ---- */
.footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding: 32px 0;
  position: relative;
  z-index: 1;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-logo {
  font-family: var(--font-mono);
  font-size: 1rem;
}
.footer-copy {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.footer-links {
  display: flex;
  gap: 24px;
}
.footer-links a {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--accent); }

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; gap: 40px; padding-top: calc(var(--nav-h) + 20px); }
  .hero-visual { order: -1; height: 320px; max-width: 100%; justify-self: center; }
  .photo-frame { width: 220px; height: 260px; }
  .ring-1 { width: 250px; height: 250px; }
  .ring-2 { width: 290px; height: 290px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat-card { padding: 18px 10px; }
  .stat-num { font-size: 2rem; }
  .stat-suffix { font-size: 1.35rem; }
  .stat-label { font-size: 0.82rem; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .auth-grid { grid-template-columns: repeat(2, 1fr); }
  .skills-grid { grid-template-columns: 1fr; }
  .certs-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  :root { --nav-h: 64px; }
  .container { padding: 0 24px; }
  .section { padding: 70px 0; }
  #navbar { padding: 0 24px; }
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .hero { padding: 0 24px; padding-top: calc(var(--nav-h) + 20px); padding-bottom: 60px; }
  .hero-scroll-hint { display: none; }
  .hero-stats { gap: 10px; }
  .auth-grid { grid-template-columns: 1fr; }
  .pubs-grid { grid-template-columns: 1fr; }
  .live-projects-grid { grid-template-columns: 1fr; }
  .live-lab-header { flex-direction: column; align-items: flex-start; }
  .focus-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .projects-header { flex-direction: column; }
  .certs-grid { grid-template-columns: 1fr 1fr; }
  .timeline { padding-left: 32px; }
  .badge-pytorch, .badge-nlp, .badge-docker, .badge-sql { display: none; }
  .cursor-dot, .cursor-ring { display: none; }
  body { cursor: auto; }
  .btn-primary, .btn-ghost { cursor: pointer; }
  .nav-cta, .filter-btn, .overlay-btn, .hamburger { cursor: pointer; }
  .lang-item { grid-template-columns: 100px 1fr 36px; }
}

@media (max-width: 480px) {
  .hero-name {
    font-size: 2rem;
    white-space: normal;
  }
  .hero-name .name-accent {
    display: block;
    margin-top: 0.1em;
  }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .stat-num { font-size: 1.85rem; }
  .stat-label { font-size: 0.78rem; }
  .hero-actions { flex-direction: column; }
  .btn-primary, .btn-ghost { width: 100%; justify-content: center; }
  .certs-grid { grid-template-columns: 1fr; }
  .tl-header { flex-direction: column; gap: 4px; }
  .footer-inner { flex-direction: column; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal-up, .reveal-right {
    opacity: 1;
    transform: none;
    animation: none;
  }
  .scroll-reveal {
    opacity: 1;
    transform: none;
  }
  #bg-canvas { display: none; }
  .cursor-dot, .cursor-ring { display: none; }
  body { cursor: auto; }
}