/* ===========================
   Custom Properties
   =========================== */
:root {
  --bg:          #08101e;
  --surface:     #0e1929;
  --surface-2:   #132030;
  --surface-3:   #1a2a42;

  --blue:        #3b82f6;
  --blue-light:  #60a5fa;
  --blue-faint:  rgba(59, 130, 246, 0.09);
  --blue-border: rgba(59, 130, 246, 0.25);

  --text:        #dde6f2;
  --text-2:      #7e9ab8;
  --border:      #1b3050;

  --font-serif: 'Lora', Georgia, 'Times New Roman', serif;
  --font-sans:  'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;

  --radius-sm: 6px;
  --radius-md: 10px;

  --shadow-card:  0 2px 18px rgba(0, 0, 0, 0.50);
  --shadow-hover: 0 6px 32px rgba(59, 130, 246, 0.18);

  --ease: 0.22s ease;
  --header-h: 66px;
}

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

html { font-size: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: var(--blue-light);
  text-decoration: none;
  transition: color var(--ease);
}
a:hover { color: #fff; }

ul { list-style: none; }

img { max-width: 100%; display: block; }

/* ===========================
   Focus styles
   =========================== */
:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ===========================
   Site Header
   =========================== */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  height: var(--header-h);
  z-index: 100;
  background: rgba(8, 16, 30, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 2rem;
}

/* Identity */
.header-identity {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  flex-shrink: 0;
}

.header-name {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.01em;
}

.header-role {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue-light);
}

/* Tab nav */
.tab-nav {
  display: flex;
  gap: 0.25rem;
}

.tab-btn {
  padding: 0.45rem 1.1rem;
  border: none;
  background: transparent;
  color: var(--text-2);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-sm);
  border-bottom: 2px solid transparent;
  transition: color var(--ease), border-color var(--ease), background var(--ease);
}

.tab-btn:hover {
  color: var(--text);
  background: var(--blue-faint);
}

.tab-btn.active {
  color: var(--blue-light);
  border-bottom-color: var(--blue);
}

/* Mobile hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

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

/* ===========================
   Container
   =========================== */
.container {
  width: 90%;
  max-width: 1080px;
  margin-inline: auto;
}

/* ===========================
   Tab Panels
   =========================== */
.tab-panel {
  display: none;
  padding-top: var(--header-h);
  min-height: 100vh;
}

.tab-panel.active {
  display: block;
}

.panel-inner {
  padding-block: 4rem 5rem;
}

/* Section heading style */
.panel-heading {
  margin-bottom: 2.5rem;
}

.panel-label {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue-light);
  margin-bottom: 0.5rem;
}

.panel-title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
}

.panel-subtitle {
  margin-top: 0.6rem;
  color: var(--text-2);
  max-width: 580px;
}

/* ===========================
   VISION TAB
   =========================== */
.vision-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 3.5rem;
  align-items: start;
}

/* Profile card */
.profile-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.profile-photo {
  width: 100%;
  aspect-ratio: 1;
  background: var(--surface-2);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border);
  color: var(--text-2);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

.profile-photo-placeholder {
  text-align: center;
  padding: 1rem;
}

.profile-photo-placeholder .initials {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  color: var(--blue-light);
  opacity: 0.6;
  display: block;
  margin-bottom: 0.5rem;
}

.profile-details {
  padding: 1.25rem;
}

.profile-details h2 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.2rem;
}

.profile-details .affil {
  font-size: 0.82rem;
  color: var(--blue-light);
  margin-bottom: 1rem;
}

.profile-meta {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.profile-meta-item {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.82rem;
  color: var(--text-2);
}

.profile-meta-item .icon {
  flex-shrink: 0;
  color: var(--blue);
  font-style: normal;
  margin-top: 1px;
}

.profile-links {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.profile-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--text-2);
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
  transition: all var(--ease);
}

.profile-link:hover {
  color: var(--blue-light);
  background: var(--blue-faint);
}

/* Vision body */
.vision-body h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.75rem;
}

.vision-body p {
  color: var(--text-2);
  margin-bottom: 1rem;
  font-size: 0.97rem;
}

.vision-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin-block: 2rem;
}

/* Research interest pills */
.interest-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.75rem;
}

.interest-pill {
  padding: 0.35rem 0.9rem;
  background: var(--blue-faint);
  border: 1px solid var(--blue-border);
  border-radius: 99px;
  font-size: 0.82rem;
  color: var(--blue-light);
}

/* ===========================
   MICROSCOPY TAB
   =========================== */
.micro-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.micro-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}

.micro-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--blue-border);
}

/* CSS fluorescence art placeholder */
.micro-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: #000;
  position: relative;
  overflow: hidden;
  cursor: default;
}

/* Each image has layered radial gradients simulating fluorescence channels.
   Blue = DAPI nuclear stain (many tight circles), Green = GFP/axons (thin streaks),
   Red/Orange = secondary channel markers. */

/* Image 1 — Dorsal Raphe: DAPI blue nuclei + GFP-green viral reporter (DREADD expression) */
.micro-image-1 {
  background:
    /* DAPI nuclei — many tight blue dots */
    radial-gradient(ellipse 5% 4%   at 18% 32%, rgba(120,180,255,0.95) 0%, rgba(60,120,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 32% 18%, rgba(110,170,255,0.90) 0%, rgba(50,110,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 5% 4%   at 55% 28%, rgba(130,185,255,0.92) 0%, rgba(65,125,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 70% 45%, rgba(115,175,255,0.88) 0%, rgba(55,115,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 5% 4%   at 45% 62%, rgba(125,182,255,0.90) 0%, rgba(62,122,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 82% 22%, rgba(108,168,255,0.85) 0%, rgba(48,108,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 25% 72%, rgba(118,178,255,0.88) 0%, rgba(58,118,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 3.5% 3% at 60% 78%, rgba(112,172,255,0.82) 0%, rgba(52,112,255,0.3) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 88% 65%, rgba(120,180,255,0.80) 0%, rgba(60,120,255,0.3) 40%, transparent 100%),
    radial-gradient(ellipse 3.5% 3% at 12% 52%, rgba(105,165,255,0.78) 0%, rgba(45,105,255,0.3) 40%, transparent 100%),
    /* GFP-green axon processes — long thin diagonal streaks */
    radial-gradient(ellipse 70% 1.5% at 45% 42%, rgba(0,230,90,0.55)  0%, transparent 100%),
    radial-gradient(ellipse 50% 1%   at 30% 55%, rgba(0,215,80,0.42)  0%, transparent 100%),
    radial-gradient(ellipse 60% 1.2% at 60% 35%, rgba(0,220,85,0.38)  0%, transparent 100%),
    #020810;
}

/* Image 2 — Basolateral Amygdala: DAPI blue + mCherry red CRF axon terminals from DR */
.micro-image-2 {
  background:
    radial-gradient(ellipse 5% 4%   at 28% 25%, rgba(120,180,255,0.95) 0%, rgba(60,120,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 48% 18%, rgba(110,170,255,0.90) 0%, rgba(50,110,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 5% 4%   at 68% 38%, rgba(130,185,255,0.92) 0%, rgba(65,125,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 22% 55%, rgba(115,175,255,0.88) 0%, rgba(55,115,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 5% 4%   at 55% 65%, rgba(125,182,255,0.90) 0%, rgba(62,122,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 82% 58%, rgba(108,168,255,0.85) 0%, rgba(48,108,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 38% 78%, rgba(118,178,255,0.82) 0%, rgba(58,118,255,0.3) 40%, transparent 100%),
    radial-gradient(ellipse 3.5% 3% at 75% 15%, rgba(112,172,255,0.80) 0%, rgba(52,112,255,0.3) 40%, transparent 100%),
    /* mCherry red — large diffuse soma stain around certain nuclei */
    radial-gradient(ellipse 18% 14% at 48% 38%, rgba(220,30,60,0.45)  0%, rgba(200,20,50,0.15) 60%, transparent 100%),
    radial-gradient(ellipse 12% 10% at 22% 55%, rgba(210,25,55,0.38)  0%, rgba(190,15,45,0.12) 60%, transparent 100%),
    radial-gradient(ellipse 14% 11% at 75% 60%, rgba(215,28,58,0.35)  0%, rgba(195,18,48,0.10) 60%, transparent 100%),
    #030509;
}

/* Image 3 — Hippocampus CA3: DAPI blue + eYFP-green opsin expression + NeuN red neurons */
.micro-image-3 {
  background:
    radial-gradient(ellipse 5% 4%   at 15% 22%, rgba(120,180,255,0.95) 0%, rgba(60,120,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 35% 35%, rgba(110,170,255,0.90) 0%, rgba(50,110,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 5% 4%   at 58% 18%, rgba(130,185,255,0.92) 0%, rgba(65,125,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 78% 32%, rgba(115,175,255,0.88) 0%, rgba(55,115,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 5% 4%   at 25% 62%, rgba(125,182,255,0.90) 0%, rgba(62,122,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 48% 75%, rgba(108,168,255,0.85) 0%, rgba(48,108,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 68% 68%, rgba(118,178,255,0.82) 0%, rgba(58,118,255,0.3) 40%, transparent 100%),
    radial-gradient(ellipse 3.5% 3% at 88% 55%, rgba(112,172,255,0.80) 0%, rgba(52,112,255,0.3) 40%, transparent 100%),
    radial-gradient(ellipse 3.5% 3% at 12% 82%, rgba(105,165,255,0.78) 0%, rgba(45,105,255,0.3) 40%, transparent 100%),
    /* MAP2-green dendrite arbors */
    radial-gradient(ellipse 65% 1.5% at 42% 40%, rgba(0,228,88,0.52)  0%, transparent 100%),
    radial-gradient(ellipse 48% 1.2% at 28% 58%, rgba(0,215,80,0.42)  0%, transparent 100%),
    /* GFAP-orange astrocyte processes */
    radial-gradient(ellipse 30% 2%   at 65% 52%, rgba(255,150,20,0.40) 0%, transparent 100%),
    radial-gradient(ellipse 22% 1.5% at 80% 38%, rgba(255,140,15,0.32) 0%, transparent 100%),
    #020710;
}

/* Image 4 — BLA: DAPI blue + CRFR1-green IHC + CaMKII-red neuron marker */
.micro-image-4 {
  background:
    radial-gradient(ellipse 5% 4%   at 22% 28%, rgba(120,180,255,0.95) 0%, rgba(60,120,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 45% 15%, rgba(110,170,255,0.90) 0%, rgba(50,110,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 5% 4%   at 72% 28%, rgba(130,185,255,0.92) 0%, rgba(65,125,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 30% 55%, rgba(115,175,255,0.88) 0%, rgba(55,115,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 5% 4%   at 60% 62%, rgba(125,182,255,0.90) 0%, rgba(62,122,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 85% 48%, rgba(108,168,255,0.85) 0%, rgba(48,108,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 3.5% 3% at 15% 72%, rgba(118,178,255,0.82) 0%, rgba(58,118,255,0.3) 40%, transparent 100%),
    radial-gradient(ellipse 3.5% 3% at 50% 82%, rgba(112,172,255,0.80) 0%, rgba(52,112,255,0.3) 40%, transparent 100%),
    /* GFAP-orange — many crossing astrocyte processes */
    radial-gradient(ellipse 72% 1.8% at 48% 44%, rgba(255,148,18,0.55) 0%, transparent 100%),
    radial-gradient(ellipse 2%   55% at 52% 50%, rgba(255,142,14,0.48) 0%, transparent 100%),
    radial-gradient(ellipse 55% 1.5% at 35% 62%, rgba(255,135,10,0.40) 0%, transparent 100%),
    radial-gradient(ellipse 1.5% 48% at 38% 40%, rgba(255,140,12,0.36) 0%, transparent 100%),
    radial-gradient(ellipse 45% 1.2% at 65% 35%, rgba(255,130,8,0.32)  0%, transparent 100%),
    #030608;
}

/* Image 5 — Dorsal Raphe Fiber Optic Placement: DAPI blue + Nissl/cresyl-violet coronal section */
.micro-image-5 {
  background:
    radial-gradient(ellipse 5% 4%   at 20% 30%, rgba(120,180,255,0.95) 0%, rgba(60,120,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 42% 22%, rgba(110,170,255,0.90) 0%, rgba(50,110,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 5% 4%   at 65% 35%, rgba(130,185,255,0.92) 0%, rgba(65,125,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 28% 65%, rgba(115,175,255,0.88) 0%, rgba(55,115,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 5% 4%   at 80% 55%, rgba(125,182,255,0.90) 0%, rgba(62,122,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 52% 75%, rgba(108,168,255,0.85) 0%, rgba(48,108,255,0.4) 40%, transparent 100%),
    radial-gradient(ellipse 3.5% 3% at 88% 22%, rgba(112,172,255,0.80) 0%, rgba(52,112,255,0.3) 40%, transparent 100%),
    radial-gradient(ellipse 3.5% 3% at 10% 50%, rgba(105,165,255,0.78) 0%, rgba(45,105,255,0.3) 40%, transparent 100%),
    /* VGLUT1-green puncta — small bright dots along axon */
    radial-gradient(ellipse 3% 2.5% at 35% 42%, rgba(20,240,100,0.90)  0%, rgba(0,200,70,0.30) 50%, transparent 100%),
    radial-gradient(ellipse 2.5% 2% at 55% 38%, rgba(20,235,95,0.85)   0%, rgba(0,195,65,0.28) 50%, transparent 100%),
    radial-gradient(ellipse 3% 2.5% at 48% 55%, rgba(25,242,102,0.88)  0%, rgba(5,202,72,0.28) 50%, transparent 100%),
    radial-gradient(ellipse 2.5% 2% at 68% 48%, rgba(18,238,98,0.82)   0%, rgba(0,198,68,0.25) 50%, transparent 100%),
    radial-gradient(ellipse 65% 1.2% at 45% 45%, rgba(0,218,85,0.32)   0%, transparent 100%),
    /* PSD-95 red puncta — tightly co-localised with green */
    radial-gradient(ellipse 2.5% 2% at 36% 43%, rgba(240,40,60,0.80)  0%, rgba(200,20,40,0.25) 50%, transparent 100%),
    radial-gradient(ellipse 2% 1.8% at 56% 39%, rgba(235,35,55,0.75)  0%, rgba(195,18,38,0.22) 50%, transparent 100%),
    radial-gradient(ellipse 2.5% 2% at 49% 56%, rgba(238,38,58,0.78)  0%, rgba(198,20,40,0.22) 50%, transparent 100%),
    #020810;
}

/* Image 6 — Whole-Brain DR Projection Mapping: DAPI blue + CTb-red retrograde + CRF-green co-expression */
.micro-image-6 {
  background:
    /* Dense DAPI nuclei — simulate low-mag whole-section */
    radial-gradient(ellipse 4% 3.5% at 12% 18%, rgba(120,180,255,0.92) 0%, rgba(60,120,255,0.35) 40%, transparent 100%),
    radial-gradient(ellipse 3.5% 3% at 28% 12%, rgba(110,170,255,0.88) 0%, rgba(50,110,255,0.32) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 45% 22%, rgba(130,185,255,0.90) 0%, rgba(65,125,255,0.35) 40%, transparent 100%),
    radial-gradient(ellipse 3.5% 3% at 62% 15%, rgba(115,175,255,0.86) 0%, rgba(55,115,255,0.30) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 78% 28%, rgba(125,182,255,0.88) 0%, rgba(62,122,255,0.32) 40%, transparent 100%),
    radial-gradient(ellipse 3.5% 3% at 88% 18%, rgba(108,168,255,0.82) 0%, rgba(48,108,255,0.28) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 18% 45%, rgba(118,178,255,0.85) 0%, rgba(58,118,255,0.30) 40%, transparent 100%),
    radial-gradient(ellipse 3.5% 3% at 38% 52%, rgba(112,172,255,0.82) 0%, rgba(52,112,255,0.28) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 55% 48%, rgba(120,180,255,0.85) 0%, rgba(60,120,255,0.30) 40%, transparent 100%),
    radial-gradient(ellipse 3.5% 3% at 72% 55%, rgba(108,168,255,0.80) 0%, rgba(48,108,255,0.26) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 85% 48%, rgba(115,175,255,0.82) 0%, rgba(55,115,255,0.28) 40%, transparent 100%),
    radial-gradient(ellipse 3.5% 3% at 22% 72%, rgba(118,178,255,0.80) 0%, rgba(58,118,255,0.26) 40%, transparent 100%),
    radial-gradient(ellipse 4% 3.5% at 48% 78%, rgba(112,172,255,0.78) 0%, rgba(52,112,255,0.25) 40%, transparent 100%),
    radial-gradient(ellipse 3.5% 3% at 65% 82%, rgba(120,180,255,0.76) 0%, rgba(60,120,255,0.24) 40%, transparent 100%),
    /* cFos-green activity clusters */
    radial-gradient(ellipse 14% 10% at 38% 42%, rgba(0,230,90,0.42)   0%, rgba(0,200,70,0.12) 60%, transparent 100%),
    radial-gradient(ellipse 10% 8%  at 65% 62%, rgba(0,222,85,0.36)   0%, rgba(0,192,65,0.10) 60%, transparent 100%),
    /* TH-orange dopaminergic fibres */
    radial-gradient(ellipse 55% 1.5% at 48% 35%, rgba(255,145,15,0.45) 0%, transparent 100%),
    radial-gradient(ellipse 40% 1.2% at 60% 65%, rgba(255,138,10,0.36) 0%, transparent 100%),
    #030709;
}

/* Add a subtle scanline texture to all micro images */
.micro-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 3px,
    rgba(0, 0, 0, 0.06) 3px,
    rgba(0, 0, 0, 0.06) 4px
  );
  pointer-events: none;
}

.micro-caption {
  padding: 1rem 1.1rem;
}

.micro-caption-title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.2rem;
}

.micro-caption-desc {
  font-size: 0.78rem;
  color: var(--text-2);
  line-height: 1.5;
}

/* ===========================
   PUBLICATIONS TAB
   =========================== */
.pub-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.pub-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.75rem;
  margin-bottom: 0.75rem;
  transition: border-color var(--ease), box-shadow var(--ease);
}

.pub-item:hover {
  border-color: var(--blue-border);
  box-shadow: var(--shadow-hover);
}

.pub-year {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--blue-light);
  margin-bottom: 0.35rem;
}

.pub-title {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.3rem;
  line-height: 1.4;
}

.pub-authors {
  font-size: 0.84rem;
  color: var(--text-2);
  margin-bottom: 0.25rem;
}

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

.pub-journal {
  font-size: 0.84rem;
  color: var(--text-2);
  font-style: italic;
  margin-bottom: 0.75rem;
}

.pub-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.pub-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.8rem;
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  color: var(--text-2);
  background: var(--surface-2);
  transition: all var(--ease);
}

.pub-link:hover {
  border-color: var(--blue);
  color: var(--blue-light);
  background: var(--blue-faint);
}

.pub-link.pubmed {
  border-color: var(--blue-border);
  color: var(--blue-light);
  background: var(--blue-faint);
}

.pub-link.pubmed:hover {
  background: rgba(59, 130, 246, 0.18);
  color: #fff;
}

/* ===========================
   TOOLS TAB
   =========================== */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.tool-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-card);
  transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
}

.tool-card:hover {
  transform: translateY(-4px);
  border-color: var(--blue-border);
  box-shadow: var(--shadow-hover);
}

.tool-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--blue-faint);
  border: 1px solid var(--blue-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 1rem;
  flex-shrink: 0;
}

.tool-name {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.4rem;
}

.tool-desc {
  font-size: 0.875rem;
  color: var(--text-2);
  flex: 1;
  margin-bottom: 1.25rem;
  line-height: 1.6;
}

.tool-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1.25rem;
}

.tool-tag {
  padding: 0.2rem 0.65rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 99px;
  font-size: 0.74rem;
  color: var(--text-2);
}

.tool-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.tool-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.9rem;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid var(--blue-border);
  color: var(--blue-light);
  background: var(--blue-faint);
  transition: all var(--ease);
}

.tool-link:hover {
  background: rgba(59, 130, 246, 0.18);
  color: #fff;
  border-color: var(--blue);
}

/* ===========================
   EDUCATION TIMELINE
   =========================== */
.edu-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-left: 1rem;
  border-left: 2px solid var(--blue-border);
}

.edu-item {
  display: grid;
  grid-template-columns: 7rem 1fr;
  gap: 1rem;
  padding: 0.9rem 0 0.9rem 1.25rem;
  position: relative;
}

.edu-item::before {
  content: '';
  position: absolute;
  left: -0.45rem;
  top: 1.25rem;
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
  background: var(--blue);
  border: 2px solid var(--bg);
}

.edu-year {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--blue-light);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding-top: 0.1rem;
  white-space: nowrap;
}

.edu-content {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.edu-content strong {
  color: var(--text);
  font-size: 0.9rem;
}

.edu-place {
  font-size: 0.84rem;
  color: var(--text-2);
  line-height: 1.4;
}

.edu-note {
  font-size: 0.78rem;
  color: var(--text-2);
  font-style: italic;
  opacity: 0.8;
}

/* ===========================
   Footer
   =========================== */
.site-footer {
  padding-block: 1.75rem;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-2);
}

/* ===========================
   Disabled / placeholder links
   =========================== */
[aria-disabled="true"] {
  opacity: 0.45;
  pointer-events: none;
  cursor: default;
}

/* ===========================
   Scrollbar
   =========================== */
::-webkit-scrollbar { width: 7px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--blue); }

/* ===========================
   Responsive — 768 px
   =========================== */
@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .tab-nav {
    position: fixed;
    inset: var(--header-h) 0 0 0;
    flex-direction: column;
    background: var(--surface);
    padding: 1.5rem;
    gap: 0.25rem;
    transform: translateX(100%);
    transition: transform var(--ease);
    z-index: 99;
    overflow-y: auto;
  }

  .tab-nav.open { transform: translateX(0); }

  .tab-btn {
    font-size: 1rem;
    padding: 0.75rem 1rem;
    border-bottom: none;
    border-left: 2px solid transparent;
    border-radius: 0;
    text-align: left;
  }

  .tab-btn.active {
    border-bottom-color: transparent;
    border-left-color: var(--blue);
  }

  /* Vision */
  .vision-grid { grid-template-columns: 1fr; gap: 2rem; }

  /* Microscopy */
  .micro-grid { grid-template-columns: 1fr 1fr; }

  /* Tools */
  .tools-grid { grid-template-columns: 1fr; }
}

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