/* ==========================================================================
   VICTOR SAMUEL I — PERSONAL PORTFOLIO
   Aesthetic: Vibrant Bio-Microscopy (Dark-first, immunofluorescence inspired)
   ========================================================================== */

:root {
  /* Bio-Microscopy Palette */
  --bg-deep: #080c14;
  --bg-surface: #0f172a;
  --bg-surface-elevated: #162036;
  --bg-glass: rgba(15, 23, 42, 0.75);
  --border-subtle: rgba(148, 163, 184, 0.12);
  --border-glow: rgba(0, 242, 254, 0.35);

  /* Fluorescent Staining Accents */
  --cyan-fluo: #00f2fe;        /* Microtubules / DAPI */
  --cyan-subtle: rgba(0, 242, 254, 0.15);
  --violet-fluo: #a855f7;      /* Nucleic / Intermediate filaments */
  --violet-subtle: rgba(168, 85, 247, 0.15);
  --crimson-muscle: #ff3366;   /* Actin / Sarcomere filaments / Myopathy */
  --crimson-subtle: rgba(255, 51, 102, 0.15);
  --emerald-silk: #10b981;     /* Sericulture / Silkpedia */
  --emerald-subtle: rgba(16, 185, 129, 0.15);

  /* Text Colors */
  --text-main: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-white: #ffffff;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Layout & Animation */
  --max-w: 1140px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-deep);
  color: var(--text-main);
  line-height: 1.65;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

/* ---------------- Sarcomere / Bio-Microscopy Background ---------------- */
.bio-canvas-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -2;
  pointer-events: none;
  background: 
    repeating-linear-gradient(
      90deg,
      rgba(0, 242, 254, 0.02) 0px,
      rgba(0, 242, 254, 0.02) 1px,
      transparent 1px,
      transparent 32px
    ),
    repeating-linear-gradient(
      0deg,
      rgba(255, 51, 102, 0.015) 0px,
      rgba(255, 51, 102, 0.015) 1px,
      transparent 1px,
      transparent 32px
    ),
    radial-gradient(circle at 15% 20%, rgba(0, 242, 254, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 85% 30%, rgba(168, 85, 247, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 50% 80%, rgba(255, 51, 102, 0.06) 0%, transparent 50%),
    var(--bg-deep);
}

/* ---------------- Layout & Container ---------------- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 85px 0;
  position: relative;
}

.section-title-wrap {
  margin-bottom: 44px;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan-fluo);
  display: inline-block;
  margin-bottom: 8px;
  padding: 4px 10px;
  background: var(--cyan-subtle);
  border: 1px solid rgba(0, 242, 254, 0.25);
  border-radius: 20px;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-white);
  line-height: 1.25;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 720px;
  margin-top: 10px;
}

/* ---------------- Glassmorphism Card System ---------------- */
.glass-card {
  background: var(--bg-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px;
  position: relative;
  transition: var(--transition-smooth);
}

.glass-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px -10px rgba(0, 242, 254, 0.15);
}

/* ---------------- Header & Terminal Navigation ---------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(8, 12, 20, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
  transition: var(--transition-fast);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

/* Terminal Monospace Brand Logo */
.brand-terminal {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-white);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 2px;
  letter-spacing: -0.01em;
  padding: 6px 12px;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(0, 242, 254, 0.2);
  border-radius: var(--radius-sm);
  transition: var(--transition-smooth);
}

.brand-terminal .terminal-prompt {
  color: var(--cyan-fluo);
  margin-right: 4px;
}

.brand-terminal .terminal-cursor {
  display: inline-block;
  width: 7px;
  height: 15px;
  background: var(--cyan-fluo);
  margin-left: 4px;
  animation: blink-cursor 1.1s infinite;
  box-shadow: 0 0 8px var(--cyan-fluo);
}

@keyframes blink-cursor {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

.brand-terminal:hover {
  border-color: var(--cyan-fluo);
  box-shadow: 0 0 16px rgba(0, 242, 254, 0.25);
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 28px;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  transition: var(--transition-fast);
  position: relative;
  padding: 6px 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--cyan-fluo);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--cyan-fluo);
  box-shadow: 0 0 8px var(--cyan-fluo);
  border-radius: 2px;
}

.nav-btn-cv {
  padding: 8px 18px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--cyan-fluo);
  background: var(--cyan-subtle);
  border: 1px solid rgba(0, 242, 254, 0.3);
  border-radius: 24px;
  text-decoration: none;
  transition: var(--transition-fast);
}

.nav-btn-cv:hover {
  background: var(--cyan-fluo);
  color: var(--bg-deep);
  box-shadow: 0 0 16px rgba(0, 242, 254, 0.4);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ---------------- Hero Section ---------------- */
.hero-section {
  padding: 100px 0 70px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--cyan-fluo);
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.2);
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 22px;
}

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

@keyframes pulse-glow {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 242, 254, 0.7); }
  70% { transform: scale(1.15); box-shadow: 0 0 0 8px rgba(0, 242, 254, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 242, 254, 0); }
}

.hero-title {
  font-size: 3.3rem;
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.03em;
  color: var(--text-white);
  margin-bottom: 20px;
}

.hero-gradient-text {
  background: linear-gradient(135deg, #ffffff 30%, var(--cyan-fluo) 70%, var(--violet-fluo) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-bio {
  font-size: 1.12rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 34px;
  max-width: 620px;
}

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

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--cyan-fluo), #0284c7);
  color: var(--bg-deep);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 26px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: var(--transition-smooth);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 242, 254, 0.4);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-surface);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: var(--transition-smooth);
  cursor: pointer;
}

.btn-secondary:hover {
  border-color: var(--cyan-fluo);
  color: var(--cyan-fluo);
  transform: translateY(-2px);
}

/* ---------------- Hero Profile Photo Avatar ---------------- */
.hero-avatar-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}

.avatar-ring {
  width: 290px;
  height: 290px;
  border-radius: 50%;
  padding: 6px;
  background: linear-gradient(135deg, var(--cyan-fluo), var(--violet-fluo), var(--crimson-muscle));
  box-shadow: 0 0 35px rgba(0, 242, 254, 0.3), 0 0 60px rgba(168, 85, 247, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: var(--transition-smooth);
}

.avatar-ring:hover {
  transform: scale(1.03);
  box-shadow: 0 0 45px rgba(0, 242, 254, 0.45), 0 0 80px rgba(168, 85, 247, 0.3);
}

.hero-avatar-img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  background: var(--bg-surface);
  border: 4px solid var(--bg-deep);
}

.avatar-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(15, 23, 42, 0.92);
  border: 1px solid rgba(0, 242, 254, 0.3);
  backdrop-filter: blur(10px);
  padding: 7px 18px;
  border-radius: 20px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-white);
  margin-top: -18px;
  z-index: 2;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}

.avatar-status-badge .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--emerald-silk);
  box-shadow: 0 0 8px var(--emerald-silk);
}

/* ---------------- About & Timeline Section ---------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 36px;
}

.bio-card p {
  color: var(--text-secondary);
  font-size: 1.02rem;
  margin-bottom: 18px;
}

.bio-card p:last-child {
  margin-bottom: 0;
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: 30px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan-fluo), var(--violet-fluo), var(--emerald-silk));
}

.timeline-item {
  position: relative;
  margin-bottom: 32px;
}

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

.timeline-marker {
  position: absolute;
  left: -30px;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-deep);
  border: 2px solid var(--cyan-fluo);
  box-shadow: 0 0 8px var(--cyan-fluo);
}

.timeline-item:nth-child(2) .timeline-marker {
  border-color: var(--violet-fluo);
  box-shadow: 0 0 8px var(--violet-fluo);
}

.timeline-item:nth-child(3) .timeline-marker {
  border-color: var(--emerald-silk);
  box-shadow: 0 0 8px var(--emerald-silk);
}

.timeline-period {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--cyan-fluo);
  margin-bottom: 4px;
}

.timeline-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-white);
  line-height: 1.3;
}

.timeline-institution {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-top: 3px;
}

.timeline-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 6px;
}

/* ---------------- Research Section & Specimen Card ---------------- */
.research-pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
  margin-bottom: 36px;
}

.pillar-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 26px;
  transition: var(--transition-smooth);
}

.pillar-card:hover {
  transform: translateY(-4px);
  border-color: var(--cyan-fluo);
}

.pillar-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 1.3rem;
}

.icon-cyan { background: var(--cyan-subtle); color: var(--cyan-fluo); }
.icon-violet { background: var(--violet-subtle); color: var(--violet-fluo); }
.icon-crimson { background: var(--crimson-subtle); color: var(--crimson-muscle); }
.icon-emerald { background: var(--emerald-subtle); color: var(--emerald-silk); }

.pillar-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 8px;
}

.pillar-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* (Sarcomere Specimen Card removed per user specification) */

/* ---------------- Publications Section ---------------- */
.publications-list {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.pub-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 26px 30px;
  transition: var(--transition-smooth);
  position: relative;
}

.pub-card:hover {
  border-color: rgba(168, 85, 247, 0.35);
  box-shadow: 0 8px 24px -8px rgba(168, 85, 247, 0.2);
}

.pub-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.pub-badge {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  padding: 3px 10px;
  border-radius: 12px;
  font-weight: 600;
}

.badge-journal {
  background: rgba(168, 85, 247, 0.15);
  color: var(--violet-fluo);
  border: 1px solid rgba(168, 85, 247, 0.3);
}

.badge-book {
  background: rgba(0, 242, 254, 0.15);
  color: var(--cyan-fluo);
  border: 1px solid rgba(0, 242, 254, 0.3);
}

.pub-year {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.pub-title {
  font-size: 1.22rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 8px;
  line-height: 1.4;
}

.pub-authors {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.pub-authors strong {
  color: var(--cyan-fluo);
}

.pub-links {
  display: flex;
  gap: 14px;
}

.pub-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--cyan-fluo);
  text-decoration: none;
  border: 1px solid rgba(0, 242, 254, 0.25);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.pub-link-btn:hover {
  background: var(--cyan-fluo);
  color: var(--bg-deep);
}

/* ---------------- Computational Biology & Code Section ---------------- */
.code-compact-card {
  background: var(--bg-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px;
  position: relative;
  transition: var(--transition-smooth);
}

.code-compact-card:hover {
  border-color: rgba(0, 242, 254, 0.3);
  box-shadow: 0 12px 30px -10px rgba(0, 242, 254, 0.15);
}

.code-tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin: 24px 0 28px 0;
}

.code-tool-item {
  background: rgba(15, 23, 42, 0.65);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 20px;
  transition: var(--transition-fast);
}

.code-tool-item:hover {
  border-color: var(--cyan-fluo);
  transform: translateY(-2px);
}

.code-tool-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.code-tool-icon {
  font-size: 1.25rem;
}

.code-tool-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-white);
}

.code-tool-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ---------------- SciComm & Outreach Section ---------------- */
.scicomm-wrapper {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

/* Part A: Science Writing (Silkpedia) */
.scicomm-writing-card {
  background: linear-gradient(145deg, rgba(15, 23, 42, 0.92), rgba(6, 78, 59, 0.25));
  border: 1px solid rgba(16, 185, 129, 0.35);
  border-radius: var(--radius-md);
  padding: 30px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  position: relative;
  overflow: hidden;
}

.scicomm-writing-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--emerald-silk), var(--cyan-fluo));
}

.scicomm-writing-content {
  max-width: 740px;
}

.scicomm-tag {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--emerald-silk);
  background: var(--emerald-subtle);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 3px 10px;
  border-radius: 12px;
  display: inline-block;
  margin-bottom: 8px;
}

.scicomm-writing-title {
  font-size: 1.45rem;
  color: var(--text-white);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.scicomm-writing-desc {
  color: var(--text-secondary);
  font-size: 0.96rem;
  line-height: 1.65;
}

/* Part B: Scientific Illustrations */
.scicomm-illustrations-wrap {
  margin-top: 10px;
}

.scicomm-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 16px;
}

.scicomm-subheading {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-white);
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
}

/* Carousel Controls */
.carousel-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.carousel-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(0, 242, 254, 0.3);
  color: var(--cyan-fluo);
  font-size: 1.3rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
  backdrop-filter: blur(8px);
  user-select: none;
}

.carousel-btn:hover:not(:disabled) {
  background: var(--cyan-fluo);
  color: var(--bg-deep);
  box-shadow: 0 0 16px var(--cyan-fluo);
  transform: scale(1.05);
}

.carousel-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  border-color: var(--border-subtle);
}

/* Carousel Viewport & Track */
.carousel-viewport {
  overflow: hidden;
  width: 100%;
  border-radius: var(--radius-md);
  position: relative;
}

.carousel-track {
  display: flex;
  gap: 24px;
  transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
  touch-action: pan-y;
}

/* Slide item */
.carousel-slide {
  flex: 0 0 calc(50% - 12px);
  min-width: 0;
  box-sizing: border-box;
}

@media (max-width: 860px) {
  .carousel-slide {
    flex: 0 0 100%;
  }
}

.illustration-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.illustration-card:hover {
  border-color: rgba(0, 242, 254, 0.35);
  transform: translateY(-4px);
  box-shadow: 0 14px 30px -10px rgba(0, 242, 254, 0.15);
}

.illustration-img-wrap {
  width: 100%;
  height: 240px;
  background: #080c14;
  overflow: hidden;
  position: relative;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
}

.illustration-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.4s ease;
}

.illustration-card:hover .illustration-img {
  transform: scale(1.02);
}

.illustration-body {
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.illustration-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.illustration-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 8px;
  line-height: 1.35;
}

.illustration-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
  flex: 1;
}

.illustration-footer {
  margin-top: auto;
}

/* Pagination Dots */
.carousel-dots {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(148, 163, 184, 0.25);
  border: 1px solid rgba(0, 242, 254, 0.25);
  cursor: pointer;
  transition: var(--transition-fast);
  padding: 0;
}

.carousel-dot:hover {
  background: rgba(0, 242, 254, 0.5);
}

.carousel-dot.active {
  background: var(--cyan-fluo);
  box-shadow: 0 0 10px var(--cyan-fluo);
  width: 26px;
  border-radius: 10px;
}

/* ---------------- Contact Section & Social SVG Cards ---------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: center;
}

.contact-info-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 12px;
}

.contact-info-desc {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.65;
  margin-bottom: 28px;
}

.email-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 14px 20px;
  margin-bottom: 24px;
}

.email-address {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--cyan-fluo);
  text-decoration: none;
}

.copy-btn {
  background: var(--cyan-subtle);
  border: 1px solid rgba(0, 242, 254, 0.3);
  color: var(--cyan-fluo);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.copy-btn:hover {
  background: var(--cyan-fluo);
  color: var(--bg-deep);
}

.social-links-grid {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.social-card {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition-smooth);
}

.social-card svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
  flex-shrink: 0;
  transition: var(--transition-fast);
}

/* Brand-specific hover states */
.social-linkedin:hover {
  border-color: #0a66c2;
  color: #0a66c2;
  box-shadow: 0 0 16px rgba(10, 102, 194, 0.3);
  transform: translateY(-2px);
}

.social-github:hover {
  border-color: #f8fafc;
  color: #f8fafc;
  box-shadow: 0 0 16px rgba(248, 250, 252, 0.3);
  transform: translateY(-2px);
}

.social-x:hover {
  border-color: #f8fafc;
  color: #f8fafc;
  box-shadow: 0 0 16px rgba(248, 250, 252, 0.3);
  transform: translateY(-2px);
}

.social-instagram:hover {
  border-color: #e1306c;
  color: #e1306c;
  box-shadow: 0 0 16px rgba(225, 48, 108, 0.3);
  transform: translateY(-2px);
}

.social-silkpedia:hover {
  border-color: #10b981;
  color: #10b981;
  box-shadow: 0 0 16px rgba(16, 185, 129, 0.3);
  transform: translateY(-2px);
}

.social-orcid:hover {
  border-color: #a6ce39;
  color: #a6ce39;
  box-shadow: 0 0 16px rgba(166, 206, 57, 0.3);
  transform: translateY(-2px);
}

.social-scholar:hover {
  border-color: #4285f4;
  color: #4285f4;
  box-shadow: 0 0 16px rgba(66, 133, 244, 0.3);
  transform: translateY(-2px);
}

/* ---------------- Footer ---------------- */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 48px 0;
  margin-top: 80px;
  background: rgba(8, 12, 20, 0.95);
}

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-text {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 20px;
  list-style: none;
}

.footer-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.88rem;
  transition: var(--transition-fast);
}

.footer-link:hover {
  color: var(--cyan-fluo);
}

/* ---------------- Responsive Media Queries ---------------- */
@media (max-width: 900px) {
  .hero-grid, .about-grid, .contact-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .scicomm-writing-card {
    flex-direction: column;
    align-items: flex-start;
  }
  .hero-avatar-wrap {
    margin-top: 20px;
  }
  .avatar-ring {
    width: 240px;
    height: 240px;
  }
  .hero-title {
    font-size: 2.7rem;
  }
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: block;
  }
  .nav-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg-deep);
    border-bottom: 1px solid var(--border-subtle);
    flex-direction: column;
    padding: 24px;
    gap: 18px;
    display: none;
  }
  .nav-menu.open {
    display: flex;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .section {
    padding: 60px 0;
  }
  .avatar-ring {
    width: 220px;
    height: 220px;
  }
  .illustration-img-wrap {
    height: 200px;
  }
  .code-tools-grid {
    grid-template-columns: 1fr;
  }
}