/* ============================================================
   SARFRAZ AHMAD — PORTFOLIO STYLESHEET
   Dark theme · Teal/Cyan accents · Glass morphism
   ============================================================ */

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

:root {
  --bg:           #0a0a0f;
  --bg-2:         #0f0f1a;
  --bg-card:      rgba(255,255,255,0.04);
  --bg-card-h:    rgba(255,255,255,0.08);
  --accent:       #00d9c0;
  --accent-2:     #7c6fff;
  --accent-glow:  rgba(0,217,192,0.25);
  --text:         #e8e8f0;
  --text-muted:   #8888aa;
  --text-dim:     #555570;
  --border:       rgba(255,255,255,0.08);
  --border-h:     rgba(0,217,192,0.35);
  --radius:       12px;
  --radius-lg:    20px;
  --font-main:    'Inter', sans-serif;
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;
  --transition:   0.3s cubic-bezier(0.4,0,0.2,1);
  --shadow:       0 8px 32px rgba(0,0,0,0.4);
  --shadow-glow:  0 0 40px rgba(0,217,192,0.15);
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-main);
  line-height: 1.7;
  overflow-x: hidden;
  cursor: none;
}

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

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-pad { padding: 100px 0; }

/* ── CUSTOM CURSOR ────────────────────────── */
.cursor {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%,-50%);
  transition: transform 0.1s;
}

.cursor-follower {
  width: 32px;
  height: 32px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%,-50%);
  transition: all 0.15s ease;
  opacity: 0.5;
}

body:has(a:hover) .cursor-follower,
body:has(button:hover) .cursor-follower {
  transform: translate(-50%,-50%) scale(1.8);
  background: var(--accent-glow);
  border-color: var(--accent);
  opacity: 0.3;
}

/* ── LOADER ──────────────────────────────── */
.loader {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s;
}

.loader.hidden { opacity: 0; visibility: hidden; }

.loader-inner { text-align: center; }

.loader-text {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 24px;
  letter-spacing: -2px;
}

.loader-bar {
  width: 200px;
  height: 2px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
}

.loader-progress {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 99px;
  transition: width 0.05s linear;
}

/* ── NAV ─────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 40px;
  transition: var(--transition);
}

.nav.scrolled {
  background: rgba(10,10,15,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 14px 40px;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -1px;
}

.nav-links {
  display: flex;
  gap: 36px;
}

.nav-links a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.3px;
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--accent);
  transition: width var(--transition);
}

.nav-links a:hover { color: var(--accent); }
.nav-links a:hover::after { width: 100%; }

.btn-resume {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border: 1.5px solid var(--accent);
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  transition: var(--transition);
}

.btn-resume:hover {
  background: var(--accent-glow);
  box-shadow: 0 0 20px var(--accent-glow);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: none;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: rgba(10,10,15,0.97);
  backdrop-filter: blur(20px);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
}

.mobile-menu.open { transform: translateX(0); }

.mobile-menu ul { text-align: center; }

.mobile-menu li { margin: 20px 0; }

.mobile-menu a {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-muted);
  transition: var(--transition);
}

.mobile-menu a:hover { color: var(--accent); }

/* ── HERO ────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

#particleCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  display: block;
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 80px;
  align-items: center;
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 120px 24px 80px;
}

.hero-greeting {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--accent);
  margin-bottom: 16px;
}

.greeting-line {
  display: inline-block;
  width: 40px;
  height: 1.5px;
  background: var(--accent);
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 5vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -2px;
  background: linear-gradient(135deg, #fff 30%, var(--text-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 20px;
}

.hero-roles {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--text-muted);
}

.typed-text {
  color: var(--accent);
  font-weight: 700;
}

.typed-cursor {
  color: var(--accent);
  animation: blink 1s infinite;
}

@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

.hero-bio {
  max-width: 520px;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0a0a0f;
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: 10px;
  transition: var(--transition);
  box-shadow: 0 4px 24px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--accent-glow);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 32px;
  border: 1.5px solid var(--border-h);
  color: var(--text);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 10px;
  transition: var(--transition);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.hero-socials {
  display: flex;
  gap: 20px;
}

.hero-socials a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  color: var(--text-muted);
  font-size: 1rem;
  transition: var(--transition);
}

.hero-socials a:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 4px 16px var(--accent-glow);
}

/* Hero Image */
.hero-image {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-ring {
  width: 320px;
  height: 320px;
  border-radius: 50%;
  padding: 4px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2), var(--accent));
  animation: rotateBorder 6s linear infinite;
}

@keyframes rotateBorder {
  from { background: linear-gradient(0deg, var(--accent), var(--accent-2)); }
  to   { background: linear-gradient(360deg, var(--accent), var(--accent-2)); }
}

.image-ring-inner {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--bg);
}

.profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
}

/* Floating Badges */
.floating-badge {
  position: absolute;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 30px;
  padding: 6px 16px;
  font-size: 0.78rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--accent);
  white-space: nowrap;
  animation: float 3s ease-in-out infinite;
}

.badge-nlp  { top: 15%;  right: -20px; animation-delay: 0s; }
.badge-llm  { bottom: 20%; left: -30px; animation-delay: 1s; }
.badge-ai   { bottom: 40%; right: -25px; animation-delay: 2s; }

@keyframes float {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-8px); }
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-dim);
  font-size: 0.7rem;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.scroll-line {
  width: 1.5px;
  height: 50px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0%,100% { opacity: 0.2; transform: scaleY(0.6) translateY(-10px); }
  50%      { opacity: 1;   transform: scaleY(1)   translateY(0); }
}

/* ── SECTION HEADERS ─────────────────────── */
.section-header { margin-bottom: 60px; }

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 2px;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -1.5px;
  background: linear-gradient(135deg, #fff 40%, var(--text-muted));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 99px;
  margin-top: 16px;
}

/* ── ABOUT ───────────────────────────────── */
.about { background: var(--bg-2); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.about-text p {
  color: var(--text-muted);
  margin-bottom: 20px;
  line-height: 1.85;
}

.about-text strong { color: var(--text); }

.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 36px;
}

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

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

.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-suffix {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  display: block;
  font-size: 0.72rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 6px;
}

/* Education */
.about-education h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--text);
}

.edu-card {
  display: flex;
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 16px;
  transition: var(--transition);
}

.edu-card:hover {
  border-color: var(--border-h);
  box-shadow: var(--shadow-glow);
}

.edu-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: #0a0a0f;
}

.edu-info h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.edu-school {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 6px;
}

.edu-meta {
  font-size: 0.78rem;
  color: var(--text-dim);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.edu-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 4px 12px;
  background: var(--accent-glow);
  border: 1px solid var(--accent);
  border-radius: 20px;
  color: var(--accent);
  font-weight: 600;
}

/* ── EXPERIENCE ──────────────────────────── */
.experience { background: var(--bg); }

.timeline { position: relative; padding-left: 36px; }

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--accent-2), transparent);
}

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

.timeline-dot {
  position: absolute;
  left: -41px;
  top: 24px;
  width: 12px;
  height: 12px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 16px var(--accent);
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  transition: var(--transition);
}

.timeline-card:hover {
  border-color: var(--border-h);
  box-shadow: var(--shadow-glow);
  transform: translateX(4px);
}

.tl-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

.tl-role {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}

.tl-company {
  font-size: 0.88rem;
  color: var(--accent);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.tl-meta {
  font-size: 0.78rem;
  color: var(--text-dim);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.tl-duration {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 6px 14px;
  background: var(--accent-glow);
  border: 1px solid var(--accent);
  border-radius: 20px;
  color: var(--accent);
  white-space: nowrap;
}

.tl-bullets {
  list-style: none;
  padding: 0;
  margin-bottom: 16px;
}

.tl-bullets li {
  position: relative;
  padding-left: 20px;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 8px;
  line-height: 1.7;
}

.tl-bullets li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.7rem;
  top: 5px;
}

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

.tl-tags span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 4px 10px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-dim);
}

/* ── PUBLICATIONS ────────────────────────── */
.publications { background: var(--bg-2); }

.pub-year-group { margin-bottom: 48px; }

.pub-year-label {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.pub-year-label span {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 4px 16px;
  border: 1px solid var(--accent);
  border-radius: 20px;
  background: var(--accent-glow);
}

.pub-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.pub-links {
  display: flex;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.pub-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 6px;
  padding: 4px 10px;
  transition: var(--transition);
  font-family: var(--font-mono);
}

.pub-links a:hover {
  background: var(--accent-glow);
  transform: translateY(-1px);
}

.pub-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.pub-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-glow), transparent);
  opacity: 0;
  transition: var(--transition);
  pointer-events: none;
}

.pub-card:hover { border-color: var(--border-h); transform: translateY(-6px); box-shadow: var(--shadow-glow); }
.pub-card:hover::before { opacity: 1; }

.pub-card.featured { border-color: rgba(0,217,192,0.3); }

.pub-type-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  padding: 4px 12px;
  background: var(--accent-glow);
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.pub-type-badge.journal { background: rgba(124,111,255,0.15); border-color: var(--accent-2); color: var(--accent-2); }
.pub-type-badge.book    { background: rgba(255,165,0,0.1);    border-color: #ffa500;         color: #ffa500; }

.pub-icon {
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 14px;
  position: relative;
}

.pub-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.5;
}

.pub-authors {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 10px;
  line-height: 1.6;
}

.pub-venue {
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.pub-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.pub-tags span {
  font-size: 0.7rem;
  padding: 3px 10px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

/* ── PROJECTS ────────────────────────────── */
.projects { background: var(--bg); }

.filter-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.filter-btn {
  padding: 8px 20px;
  border: 1.5px solid var(--border);
  border-radius: 30px;
  background: none;
  color: var(--text-muted);
  font-size: 0.83rem;
  font-weight: 600;
  cursor: none;
  transition: var(--transition);
  font-family: var(--font-main);
}

.filter-btn:hover,
.filter-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  border-color: var(--border-h);
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
}

.project-card.featured-project {
  border-color: rgba(0,217,192,0.25);
  background: linear-gradient(135deg, rgba(0,217,192,0.04), var(--bg-card));
}

.project-card.hidden { display: none; }

.project-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}

.project-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--accent-glow), rgba(124,111,255,0.15));
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--accent);
}

.project-links a {
  color: var(--text-muted);
  font-size: 0.95rem;
  transition: var(--transition);
}

.project-links a:hover { color: var(--accent); }

.proj-star {
  font-size: 0.72rem;
  color: #fbbf24;
  font-family: var(--font-mono);
  display: flex;
  align-items: center;
  gap: 4px;
}

.project-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.4;
}

.project-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.75;
  flex: 1;
  margin-bottom: 20px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.project-tags span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 3px 10px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--accent);
}

.project-meta {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-style: italic;
  margin-top: auto;
}

/* ── SKILLS ──────────────────────────────── */
.skills { background: var(--bg-2); }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 60px;
}

.skill-category {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
}

.skill-category:hover {
  border-color: var(--border-h);
  box-shadow: var(--shadow-glow);
}

.skill-cat-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: #0a0a0f;
  margin-bottom: 16px;
}

.skill-category h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
}

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

.pill {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  padding: 5px 12px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-muted);
  transition: var(--transition);
}

.pill:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

/* Domain Expertise Cards */
.domain-cards,
.tech-cloud { margin-top: 56px; }

.domain-heading {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 28px;
}

.domain-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.domain-card {
  display: flex;
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.domain-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px;
  height: 100%;
  background: var(--clr, var(--accent));
  border-radius: 3px 0 0 3px;
}

.domain-card:hover {
  border-color: rgba(255,255,255,0.12);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.domain-icon-wrap {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--clr, var(--accent));
  background: color-mix(in srgb, var(--clr, var(--accent)) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--clr, var(--accent)) 30%, transparent);
}

.domain-body h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.domain-body p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}

.domain-metrics {
  display: flex;
  gap: 20px;
  margin-bottom: 14px;
}

.dm {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.dm-val {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--clr, var(--accent));
}

.dm-lbl {
  font-size: 0.68rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.domain-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.domain-tools span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 3px 10px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-dim);
}

/* Tech Cloud */
.tech-cloud-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.tc-tag {
  font-family: var(--font-mono);
  border-radius: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: default;
  transition: var(--transition);
}

.tc-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
  transform: translateY(-2px);
}

.tc-lg { font-size: 1rem;   font-weight: 700; padding: 10px 20px; color: var(--text); }
.tc-md { font-size: 0.88rem; font-weight: 600; padding: 8px 16px; }
.tc-sm { font-size: 0.75rem; font-weight: 500; padding: 6px 12px; }

/* ── CONTACT ─────────────────────────────── */
.contact { background: var(--bg); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: start;
}

.contact-text p {
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 32px;
}

.contact-info-items { margin-bottom: 32px; }

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

.ci-icon {
  width: 42px;
  height: 42px;
  min-width: 42px;
  background: var(--accent-glow);
  border: 1px solid var(--accent);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 0.95rem;
}

.ci-label {
  display: block;
  font-size: 0.72rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 4px;
}

.contact-info-item a,
.contact-info-item span {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: var(--transition);
}

.contact-info-item a:hover { color: var(--accent); }

.contact-socials {
  display: flex;
  gap: 12px;
}

.contact-socials a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  color: var(--text-muted);
  font-size: 1rem;
  transition: var(--transition);
}

.contact-socials a:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 4px 16px var(--accent-glow);
}

/* Contact Form */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--bg-2);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  color: var(--text);
  font-family: var(--font-main);
  font-size: 0.9rem;
  transition: var(--transition);
  resize: none;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-dim); }

.btn-submit {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0a0a0f;
  font-weight: 700;
  font-size: 0.95rem;
  border: none;
  border-radius: 10px;
  cursor: none;
  transition: var(--transition);
  font-family: var(--font-main);
  width: 100%;
  justify-content: center;
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--accent-glow);
}

/* ── FOOTER ──────────────────────────────── */
.footer {
  padding: 32px 0;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--text-dim);
}

.footer-copy strong { color: var(--text-muted); }

.footer-inspired {
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* ── BACK TO TOP ─────────────────────────── */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0a0a0f;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  cursor: none;
  z-index: 500;
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.back-to-top.visible { opacity: 1; transform: translateY(0); }
.back-to-top:hover   { transform: translateY(-4px); }

/* ── RESPONSIVE ──────────────────────────── */
@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; gap: 48px; padding-top: 140px; }
  .hero-image { order: -1; }
  .image-ring { width: 240px; height: 240px; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-stats { grid-template-columns: repeat(2, 1fr); }
  .pub-grid { grid-template-columns: 1fr; }
  .pub-year-label { margin-bottom: 16px; }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  .nav-links, .btn-resume { display: none; }
  .hamburger { display: flex; }
  .hero-content { grid-template-columns: 1fr; text-align: center; }
  .hero-actions, .hero-socials { justify-content: center; }
  .hero-bio { margin: 0 auto 36px; }
  .hero-image { justify-content: center; }
  .floating-badge { display: none; }
  .projects-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
  .domain-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .nav { padding: 16px 20px; }
  .section-pad { padding: 70px 0; }
}

@media (max-width: 480px) {
  .about-stats { grid-template-columns: repeat(2, 1fr); }
  .contact-form { padding: 24px; }
  .expertise-bars { padding: 24px; }
}

/* ── SELECTION ───────────────────────────── */
::selection { background: var(--accent-glow); color: var(--accent); }

/* ── SCROLLBAR ───────────────────────────── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 2px; }