/* ═══════════════════════════════════════════════════════
   INHA NANOMEDIC LAB — Global Stylesheet
   Design: Dark navy + teal accent, editorial typography
   v2.0 — Readability & design improvements
   ═══════════════════════════════════════════════════════ */

/* ── VARIABLES ── */
:root {
  --navy: #0a1628;
  --deep: #0d1f3c;
  --blue: #1a3a6b;
  --accent: #4a90c4;
  --teal: #2ec4b6;
  --teal-dark: #22a89c;
  --gold: #c9a84c;
  --light: #e8f0f7;
  --muted: #a3b8cc;
  --white: #f5f8fb;
  --border: rgba(74,144,196,0.20);
  --border-light: rgba(74,144,196,0.1);
  --card-bg: rgba(74,144,196,0.04);
  --card-hover: rgba(74,144,196,0.09);
  --text-primary: #f5f8fb;
  --text-secondary: rgba(232,240,247,0.75);
  --text-dim: rgba(232,240,247,0.65);
  --nav-height: 62px;
}

/* ── RESET ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--navy);
  color: var(--white);
  overflow-x: hidden;
  line-height: 1.75;
  letter-spacing: 0.01em;
}

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

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--navy); }
::-webkit-scrollbar-thumb { background: var(--blue); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ── NAVIGATION ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 48px;
  background: rgba(10,22,40,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: padding 0.3s, background 0.3s;
}
nav.scrolled {
  padding: 12px 48px;
  background: rgba(10,22,40,0.97);
}

.nav-logo {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.15rem; font-weight: 600; letter-spacing: 0.08em;
  color: var(--white);
  text-decoration: none;
}
.nav-logo span { color: var(--teal); }

.nav-links { display: flex; gap: 28px; list-style: none; }
.nav-links a {
  font-family: 'DM Mono', monospace;
  font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--muted); text-decoration: none;
  transition: color 0.2s;
  position: relative;
  padding: 4px 0;
}
.nav-links a:hover,
.nav-links a.active { color: var(--teal); }
.nav-links a.active::after {
  content: ''; position: absolute; bottom: -2px; left: 0; right: 0;
  height: 1px; background: var(--teal);
}

/* Hamburger */
.nav-toggle {
  display: none; cursor: pointer; background: none; border: none;
  flex-direction: column; gap: 5px; padding: 4px;
}
.nav-toggle span {
  display: block; width: 22px; height: 1.5px;
  background: var(--white); transition: all 0.3s;
}
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }

/* ── PAGE HERO (inner pages) ── */
.page-hero {
  padding: 160px 56px 96px;
  position: relative; overflow: hidden;
  background: var(--navy);
}
.page-hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 40%, rgba(26,58,107,0.45) 0%, transparent 70%),
    radial-gradient(ellipse 50% 50% at 20% 70%, rgba(46,196,182,0.06) 0%, transparent 60%),
    linear-gradient(160deg, #0a1628 0%, #0d1f3c 60%, #071220 100%);
}
.page-hero-bg::after {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 65% 55% at 60% 40%, rgba(46,196,182,0.18) 0%, transparent 60%),
    radial-gradient(ellipse 50% 55% at 30% 60%, rgba(74,144,196,0.15) 0%, transparent 50%);
  animation: nebulaShift 25s ease-in-out infinite alternate;
  will-change: opacity, transform;
}
.page-hero-dots {
  position: absolute; inset: 0; z-index: 1;
  background-image:
    radial-gradient(circle, rgba(74,144,196,0.25) 1px, transparent 1px),
    radial-gradient(circle, rgba(46,196,182,0.12) 1px, transparent 1px);
  background-size: 48px 48px, 80px 80px;
  background-position: 0 0, 24px 24px;
  animation: drift 25s linear infinite;
  will-change: background-position;
}
@keyframes drift { to { background-position: 48px 48px, 72px 72px; } }

.page-hero-content { position: relative; z-index: 2; max-width: 800px; }
.page-hero .hero-tag {
  font-family: 'DM Mono', monospace;
  font-size: 0.75rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--teal); margin-bottom: 16px;
  display: flex; align-items: center; gap: 12px;
}
.page-hero .hero-tag::before {
  content: ''; display: block; width: 32px; height: 1px; background: var(--teal);
}
.page-hero h1 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 400; line-height: 1.15;
  margin-bottom: 16px;
}
.page-hero h1 em { font-style: italic; color: var(--teal); }
.page-hero p {
  font-size: 1.02rem; line-height: 1.8;
  color: var(--text-secondary); max-width: 600px;
}

/* ── FULL HERO (home page) ── */
.hero {
  min-height: 100vh;
  display: flex; align-items: center;
  position: relative; overflow: hidden;
  padding: 120px 56px 80px;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 40%, rgba(26,58,107,0.55) 0%, transparent 70%),
    radial-gradient(ellipse 50% 50% at 20% 70%, rgba(46,196,182,0.08) 0%, transparent 60%),
    linear-gradient(160deg, #0a1628 0%, #0d1f3c 60%, #071220 100%);
}
/* Nebula glow — slow teal/blue color wash */
.hero-bg::after {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 65% 35%, rgba(46,196,182,0.22) 0%, transparent 65%),
    radial-gradient(ellipse 55% 65% at 25% 65%, rgba(74,144,196,0.18) 0%, transparent 55%),
    radial-gradient(ellipse 40% 40% at 50% 50%, rgba(26,58,107,0.25) 0%, transparent 50%);
  animation: nebulaShift 25s ease-in-out infinite alternate;
  will-change: opacity, transform;
}
@keyframes nebulaShift {
  0% { opacity: 0.6; transform: scale(1) translate(0, 0); filter: hue-rotate(0deg); }
  33% { opacity: 1; transform: scale(1.08) translate(2%, -1%); filter: hue-rotate(20deg); }
  66% { opacity: 0.8; transform: scale(0.95) translate(-2%, 1%); filter: hue-rotate(-15deg); }
  100% { opacity: 1; transform: scale(1.05) translate(1%, 2%); filter: hue-rotate(10deg); }
}
.hero-dots {
  position: absolute; inset: 0; z-index: 1;
  background-image:
    radial-gradient(circle, rgba(74,144,196,0.35) 1px, transparent 1px),
    radial-gradient(circle, rgba(46,196,182,0.2) 1px, transparent 1px);
  background-size: 48px 48px, 80px 80px;
  background-position: 0 0, 24px 24px;
  animation: drift 20s linear infinite;
  will-change: background-position;
}
.hero-content { position: relative; z-index: 2; max-width: 700px; }
.hero-tag {
  font-family: 'DM Mono', monospace;
  font-size: 0.75rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--teal); margin-bottom: 20px;
  display: flex; align-items: center; gap: 12px;
}
.hero-tag::before {
  content: ''; display: block; width: 32px; height: 1px; background: var(--teal);
}
.hero h1 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  font-weight: 400; line-height: 1.15;
  margin-bottom: 12px;
}
.hero h1 em { font-style: italic; color: var(--teal); }
.hero h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1.1rem, 2.5vw, 1.6rem);
  font-weight: 300; color: var(--muted);
  margin-bottom: 32px; line-height: 1.5;
}
.hero p {
  font-size: 1.02rem; line-height: 1.8;
  color: var(--text-secondary); max-width: 520px; margin-bottom: 40px;
}
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; }

/* ── STATS BAR ── */
.stats-bar {
  display: grid; grid-template-columns: repeat(3, 1fr);
  background: var(--deep); border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stat-item {
  padding: 32px 48px; text-align: center;
  border-right: 1px solid var(--border);
}
.stat-item:last-child { border-right: none; }
.stat-number {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2.8rem; font-weight: 300; color: var(--teal);
  line-height: 1; margin-bottom: 6px;
}
.stat-label {
  font-family: 'DM Mono', monospace; font-size: 0.72rem;
  letter-spacing: 0.15em; text-transform: uppercase; color: var(--muted);
}

/* ── BUTTONS ── */
.btn-primary {
  padding: 14px 32px;
  background: var(--teal); color: var(--navy);
  font-family: 'DM Mono', monospace; font-size: 0.75rem;
  letter-spacing: 0.12em; text-transform: uppercase;
  border: none; cursor: pointer; text-decoration: none;
  display: inline-block; font-weight: 500;
  clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
  transition: background 0.2s, transform 0.15s;
}
.btn-primary:hover { background: var(--teal-dark); transform: translateY(-2px); }
.btn-primary:focus-visible { outline: 2px solid var(--teal); outline-offset: 4px; }

.btn-outline {
  padding: 13px 32px;
  background: transparent; color: var(--accent);
  font-family: 'DM Mono', monospace; font-size: 0.75rem;
  letter-spacing: 0.12em; text-transform: uppercase;
  border: 1px solid rgba(74,144,196,0.45); cursor: pointer;
  text-decoration: none; display: inline-block;
  transition: border-color 0.2s, color 0.2s;
}
.btn-outline:hover { border-color: var(--accent); color: var(--white); }
.btn-outline:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }

.btn-small {
  padding: 8px 20px;
  font-size: 0.68rem;
}

/* ── SECTION BASE ── */
section { padding: 120px 56px; }
.section-label {
  font-family: 'DM Mono', monospace;
  font-size: 0.75rem; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--teal); margin-bottom: 16px;
  display: flex; align-items: center; gap: 10px;
}
.section-label::after {
  content: ''; flex: 0 0 48px; height: 1px; background: var(--teal); opacity: 0.5;
}
.section-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2rem, 4vw, 3rem); font-weight: 400;
  line-height: 1.15; margin-bottom: 24px;
}
.section-title em { font-style: italic; color: var(--teal); }
.section-subtitle {
  font-size: 1.02rem; color: var(--text-secondary);
  max-width: 640px; line-height: 1.8; margin-bottom: 48px;
}

/* ── DIVIDER ── */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(74,144,196,0.3), transparent);
  margin: 0 56px;
}

/* ── INTRO SECTION ── */
.intro { background: var(--deep); }
.intro-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 72px;
  align-items: start; margin-top: 56px;
  max-width: 1200px;
}
.intro-text p {
  font-size: 1.02rem; line-height: 1.9;
  color: var(--text-secondary); margin-bottom: 20px;
}
.intro-pillars { display: flex; flex-direction: column; gap: 20px; }
.pillar {
  padding: 28px 32px;
  border: 1px solid rgba(74,144,196,0.2);
  border-left: 3px solid var(--teal);
  background: var(--card-bg);
  border-radius: 4px;
}
.pillar-title {
  font-family: 'DM Mono', monospace; font-size: 0.75rem;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--teal); margin-bottom: 8px;
}
.pillar p { font-size: 0.95rem; color: var(--muted); line-height: 1.7; }

/* ── RESEARCH CARDS ── */
.research { background: var(--navy); }
.research-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  margin-top: 56px;
  max-width: 1200px;
}
.research-card {
  background: var(--deep);
  padding: 40px 36px;
  position: relative; overflow: hidden;
  cursor: default;
  border: 1px solid var(--border);
  border-radius: 4px;
}
.card-num {
  font-family: 'Cormorant Garamond', serif; font-size: 3.5rem;
  font-weight: 300; color: rgba(74,144,196,0.15);
  line-height: 1; margin-bottom: 20px;
}
.card-title {
  font-family: 'Cormorant Garamond', serif; font-size: 1.35rem;
  font-weight: 400; margin-bottom: 12px; line-height: 1.3;
}
.card-desc { font-size: 0.92rem; line-height: 1.75; color: var(--muted); }
.card-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.tag {
  font-family: 'DM Mono', monospace; font-size: 0.68rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 3px 10px; border: 1px solid rgba(46,196,182,0.3);
  color: var(--teal);
}

/* ── PUBLICATIONS ── */
.publications { background: var(--deep); }
.pub-list { margin-top: 56px; display: flex; flex-direction: column; max-width: 1000px; }
.pub-item {
  display: grid; grid-template-columns: 72px 1fr 180px;
  align-items: center; gap: 28px;
  padding: 24px 8px;
  border-bottom: 1px solid var(--border-light);
}
.pub-year {
  font-family: 'DM Mono', monospace; font-size: 0.78rem;
  color: var(--teal); letter-spacing: 0.08em;
}
.pub-title {
  font-size: 0.95rem; line-height: 1.6;
  color: var(--text-primary);
}
.pub-journal {
  font-family: 'DM Mono', monospace; font-size: 0.74rem;
  color: var(--muted); text-align: right; letter-spacing: 0.05em;
}
.pub-more { margin-top: 32px; text-align: center; }

/* Publication category tabs */
.pub-tabs {
  display: flex; gap: 0; margin-top: 40px; margin-bottom: 0;
  border-bottom: 1px solid var(--border);
}
.pub-tab {
  font-family: 'DM Mono', monospace; font-size: 0.75rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 14px 28px; color: var(--muted);
  cursor: pointer; border: none; background: none;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.pub-tab:hover { color: var(--white); }
.pub-tab.active {
  color: var(--teal);
  border-bottom-color: var(--teal);
}
.pub-section { display: none; }
.pub-section.active { display: block; }

/* ── MEMBERS ── */
.members { background: var(--navy); }
.members-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px;
  margin-top: 56px;
  max-width: 1200px;
}
.member-card {
  background: var(--deep); padding: 36px 28px; text-align: center;
  border: 1px solid var(--border-light);
  border-radius: 4px;
}

.member-photo {
  width: 100px; height: 100px; border-radius: 50%;
  margin: 0 auto 20px;
  object-fit: cover;
  border: 2px solid rgba(46,196,182,0.3);
  transition: border-color 0.3s, transform 0.2s;
}
.member-card:hover .member-photo {
  border-color: var(--teal);
  transform: scale(1.03);
}
/* member-avatar removed — unused */
.member-name {
  font-family: 'Cormorant Garamond', serif; font-size: 1.25rem;
  margin-bottom: 4px;
}
.member-name-kr {
  font-size: 0.82rem; color: var(--muted); margin-bottom: 8px;
}
.member-role {
  font-family: 'DM Mono', monospace; font-size: 0.72rem;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--teal);
  margin-bottom: 10px;
}
.member-field { font-size: 0.88rem; color: var(--muted); line-height: 1.5; }
.member-email {
  font-family: 'DM Mono', monospace; font-size: 0.72rem;
  color: var(--accent); margin-top: 8px;
  word-break: break-all;
}


/* Category headings for member sections */
.member-category {
  font-family: 'DM Mono', monospace; font-size: 0.75rem;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--teal); margin: 56px 0 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.member-category:first-of-type { margin-top: 40px; }

/* ── CONTACT ── */
.contact {
  background: var(--deep);
  display: grid; grid-template-columns: 1fr 1fr; gap: 80px;
  align-items: start;
}
.contact-item {
  display: flex; gap: 16px; margin-bottom: 28px; align-items: flex-start;
}
.contact-icon {
  width: 36px; height: 36px; flex-shrink: 0;
  border: 1px solid rgba(46,196,182,0.35);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem; color: var(--teal);
}
.contact-label {
  font-family: 'DM Mono', monospace; font-size: 0.72rem;
  letter-spacing: 0.15em; text-transform: uppercase; color: var(--teal);
  margin-bottom: 4px;
}
.contact-val { font-size: 0.95rem; color: rgba(232,240,247,0.8); }

.map-embed {
  background: rgba(26,58,107,0.3); border: 1px solid rgba(74,144,196,0.2);
  height: 300px; margin-top: 40px; overflow: hidden;
  border-radius: 4px;
}
.map-embed iframe { width: 100%; height: 100%; border: 0; filter: grayscale(0.4) brightness(0.8); }

/* gallery classes removed — page uses "Coming soon" */

/* ── FACILITIES ── */
.facility-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
  margin-top: 56px;
}
.facility-card {
  background: var(--deep); padding: 36px;
  border: 1px solid var(--border-light);
  border-left: 3px solid var(--teal);
  border-radius: 4px;
}
.facility-name {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.15rem; margin-bottom: 8px;
}
.facility-desc {
  font-size: 0.92rem; color: var(--muted); line-height: 1.7;
}
.facility-icon {
  font-size: 1.6rem; margin-bottom: 12px;
}

/* ── BENEFIT CARDS ── */
.benefit-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  margin-top: 56px;
}
.benefit-card {
  background: var(--deep); padding: 36px 28px;
  border: 1px solid var(--border-light);
  position: relative; overflow: hidden;
  border-radius: 4px;
}
.benefit-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--teal), var(--accent));
  transform: scaleX(1);
}
.benefit-icon {
  font-size: 2rem; margin-bottom: 16px;
}
.benefit-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.3rem; margin-bottom: 12px; line-height: 1.3;
}
.benefit-desc {
  font-size: 0.92rem; color: var(--muted); line-height: 1.75;
}

/* news classes removed — page uses "Coming soon" */

/* ── PATENT TABLE ── */
.patent-table {
  width: 100%; margin-top: 24px;
  border-collapse: collapse;
  max-width: 1200px;
}
.patent-table thead {
  position: sticky;
  top: var(--nav-height);
  z-index: 10;
  background: var(--deep);
}
.patent-table th {
  font-family: 'DM Mono', monospace; font-size: 0.72rem;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--teal); text-align: left;
  padding: 14px 20px; border-bottom: 2px solid var(--border);
}
.patent-table td {
  font-size: 0.88rem; color: var(--text-secondary);
  padding: 16px 20px; border-bottom: 1px solid var(--border-light);
  line-height: 1.6;
}
.patent-table td:first-child {
  color: var(--text-primary);
  font-size: 0.9rem;
  width: 50%;
}
.patent-table td:nth-child(2) {
  font-style: italic;
  color: var(--muted);
  font-size: 0.85rem;
  width: 28%;
}
.patent-table td:nth-child(3) {
  font-family: 'DM Mono', monospace;
  font-size: 0.78rem;
  color: var(--teal);
  letter-spacing: 0.05em;
  white-space: nowrap;
  width: 8%;
}
.patent-table td:last-child {
  text-align: center;
  white-space: nowrap;
  width: 14%;
}
.patent-table tbody tr:nth-child(even) {
  background: rgba(74,144,196,0.04);
}
.patent-table tbody tr:hover {
  background: rgba(74,144,196,0.08);
}

/* ── FOOTER ── */
footer {
  background: #060f1e;
  padding: 48px 56px;
  border-top: 1px solid var(--border-light);
}
.footer-inner {
  display: flex; align-items: center; justify-content: space-between;
}
.footer-logo {
  font-family: 'Cormorant Garamond', serif; font-size: 1rem; font-weight: 600;
  letter-spacing: 0.06em;
}
.footer-logo span { color: var(--teal); }
.footer-copy {
  font-family: 'DM Mono', monospace; font-size: 0.68rem;
  color: var(--muted); letter-spacing: 0.06em;
}
.footer-links {
  display: flex; gap: 24px; margin-top: 20px;
}
.footer-links a {
  font-family: 'DM Mono', monospace; font-size: 0.68rem;
  color: var(--muted); letter-spacing: 0.1em; text-transform: uppercase;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--teal); }

/* ── ANIMATIONS ── */
.fade-in {
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1; transform: translateY(0);
}
/* Hero content always visible (critical above-fold, no JS dependency) */
.page-hero-content.fade-in,
.hero-content .fade-in,
.hero .fade-in { animation: fadeUpImmediate 0.7s ease forwards; }
@keyframes fadeUpImmediate {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-in:nth-child(2) { transition-delay: 0.1s; }
.fade-in:nth-child(3) { transition-delay: 0.2s; }
.fade-in:nth-child(4) { transition-delay: 0.3s; }
.fade-in:nth-child(5) { transition-delay: 0.4s; }
.fade-in:nth-child(6) { transition-delay: 0.5s; }

/* ── CONTENT BLOCKS ── */
.content-block {
  max-width: 800px;
}
.content-block p {
  font-size: 1.02rem; line-height: 1.9;
  color: var(--text-secondary); margin-bottom: 20px;
}
.content-block h3 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.4rem; font-weight: 400;
  margin: 40px 0 16px; color: var(--white);
}
.content-block ul {
  padding-left: 0; margin-bottom: 20px;
}
.content-block li {
  font-size: 0.9rem; color: var(--text-secondary);
  line-height: 1.8; padding: 4px 0 4px 20px;
  position: relative;
}
.content-block li::before {
  content: ''; position: absolute; left: 0; top: 14px;
  width: 6px; height: 1px; background: var(--teal);
}

/* ── ACCESSIBILITY ── */
@media (prefers-reduced-motion: reduce) {
  .hero-dots, .page-hero-dots { animation: none; }
  .hero-bg::after, .page-hero-bg::after { animation: none; }
  .fade-in { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ══════════════════════════════════════════════════
   RESPONSIVE — Tablet, Phone Landscape, Phone Portrait
   ══════════════════════════════════════════════════ */

/* ── TABLET (iPad portrait & landscape) ── */
@media (max-width: 1024px) {
  section { padding: 100px 40px; }
  .page-hero { padding: 140px 40px 80px; }
  .hero { padding: 120px 40px 80px; }
  .divider { margin: 0 40px; }
  footer { padding: 40px; }

  .research-grid { grid-template-columns: repeat(2, 1fr); }
  .members-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .benefit-grid { grid-template-columns: repeat(2, 1fr); }
  .facility-grid { grid-template-columns: 1fr; }
  .intro-grid { gap: 48px; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }


  /* Tablet: make publication table more compact */
  .patent-table td { padding: 14px 12px; font-size: 0.84rem; }
  .patent-table td:first-child { font-size: 0.86rem; }
  .patent-table td:nth-child(2) { font-size: 0.8rem; }
  .patent-table th { padding: 12px; font-size: 0.68rem; }

  /* Pub tabs: scrollable on tablet */
  .pub-tabs { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .pub-tab { white-space: nowrap; padding: 12px 20px; font-size: 0.7rem; }
}

/* ── PHONE LANDSCAPE / SMALL TABLET ── */
@media (max-width: 768px) {
  :root { --nav-height: 52px; }
  /* Nav — touch-friendly hamburger */
  nav { padding: 14px 20px; }
  nav.scrolled { padding: 10px 20px; }
  .nav-toggle {
    display: flex; z-index: 1000;
    padding: 10px;  /* larger touch target: 42px total */
  }
  .nav-toggle span { width: 24px; height: 2px; }
  .nav-links {
    display: flex; flex-direction: column;
    position: fixed; top: 0; right: 0;
    width: 300px; height: 100vh; height: 100dvh;
    background: rgba(10,22,40,0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 100px 32px 32px;
    gap: 0;
    border-left: 1px solid var(--border);
    z-index: 999;
    transform: translateX(100%);
    visibility: hidden;
    transition: transform 0.3s ease, visibility 0.3s;
  }
  .nav-links.open {
    transform: translateX(0);
    visibility: visible;
  }
  .nav-links a {
    padding: 16px 0;  /* 48px touch target height */
    font-size: 0.85rem;
    border-bottom: 1px solid var(--border-light);
  }
  .nav-links li:last-child a { border-bottom: none; }

  /* Layout */
  section { padding: 60px 20px; }
  .page-hero { padding: 120px 20px 56px; }
  .hero { padding: 100px 20px 56px; }
  .divider { margin: 0 20px; }
  footer { padding: 36px 20px; }

  /* Grids go narrower */
  .intro-grid { grid-template-columns: 1fr; gap: 36px; }
  .research-grid { grid-template-columns: 1fr; gap: 12px; }
  .members-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .benefit-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .contact { grid-template-columns: 1fr; gap: 32px; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .stat-item { padding: 20px 16px; }
  .news-item { grid-template-columns: 80px 1fr; gap: 16px; }

  /* Member photos: LARGER on mobile */
  .member-photo { width: 110px; height: 110px; }
  .member-avatar { width: 110px; height: 110px; }
  .member-card { padding: 28px 20px; }

  /* Home page pub preview */
  .pub-item { grid-template-columns: 56px 1fr; gap: 12px; }
  .pub-journal { grid-column: 2; text-align: left; font-size: 0.7rem; }
  .pub-title { font-size: 0.88rem; }

  /* ── PUBLICATION TABLE → CARD LAYOUT ── */
  .patent-table { display: block; margin-top: 24px; }
  .patent-table thead { display: none; }  /* hide column headers */
  .patent-table tbody { display: flex; flex-direction: column; gap: 12px; }
  .patent-table tr {
    display: flex; flex-direction: column;
    background: var(--deep);
    border: 1px solid var(--border-light);
    border-radius: 6px;
    padding: 20px;
    border-bottom: none;
  }
  .patent-table tbody tr:nth-child(even) { background: rgba(13, 31, 60, 0.8); }
  .patent-table td {
    display: block; padding: 0; border: none;
    width: 100% !important; min-width: 0 !important;
    font-size: 0.9rem;
  }
  /* Title — prominent */
  .patent-table td:first-child {
    font-size: 0.95rem; font-weight: 500;
    line-height: 1.5; margin-bottom: 10px;
    color: var(--text-primary);
  }
  /* Journal — italic label */
  .patent-table td:nth-child(2) {
    font-size: 0.8rem; font-style: italic;
    color: var(--muted); margin-bottom: 8px;
  }
  .patent-table td:nth-child(2)::before {
    content: ''; /* no label prefix needed, italic distinguishes it */
  }
  /* Year — teal badge inline */
  .patent-table td:nth-child(3) {
    display: inline-block;
    font-size: 0.72rem; padding: 2px 10px;
    background: rgba(46,196,182,0.12);
    border: 1px solid rgba(46,196,182,0.25);
    border-radius: 3px;
    margin-bottom: 10px;
    width: auto !important;
  }
  /* PDF button — full width */
  .patent-table td:last-child {
    text-align: left; margin-top: 4px;
    width: auto !important;
  }
  .patent-table td:last-child .btn-outline,
  .patent-table td:last-child .btn-small {
    padding: 10px 24px;  /* bigger touch target */
    font-size: 0.72rem;
  }

  /* Footer */
  .footer-inner { flex-direction: column; gap: 16px; text-align: center; }
  .footer-links { justify-content: center; flex-wrap: wrap; gap: 16px; }
  .footer-copy { font-size: 0.62rem; line-height: 1.6; }

  /* Research card spacing */
  .research-card { padding: 28px 24px; }
  .card-num { font-size: 2.8rem; }

  /* Buttons: bigger touch targets */
  .btn-primary, .btn-outline { padding: 16px 28px; font-size: 0.78rem; }
  .hero-ctas { gap: 12px; }
}

/* ── PHONE PORTRAIT ── */
@media (max-width: 480px) {
  section { padding: 48px 16px; }
  .page-hero { padding: 110px 16px 48px; }
  .hero { padding: 90px 16px 48px; }
  .divider { margin: 0 16px; }

  .members-grid { grid-template-columns: 1fr; gap: 14px; }
  .gallery-grid { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: 1fr; }
  .stat-item {
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 16px;
  }
  .stat-item:last-child { border-bottom: none; }
  .stat-number { font-size: 2.2rem; }

  /* Member photos even larger on small phones */
  .member-photo { width: 120px; height: 120px; }
  .member-avatar { width: 120px; height: 120px; font-size: 2.4rem; }
  .member-card { padding: 32px 24px; }
  .member-name { font-size: 1.15rem; }

  /* Pub tabs: wrap and fill */
  .pub-tabs { flex-wrap: wrap; gap: 4px; border-bottom: none; }
  .pub-tab {
    padding: 10px 14px; font-size: 0.65rem;
    border: 1px solid var(--border-light);
    border-radius: 4px; flex: 1 1 auto;
    text-align: center;
  }
  .pub-tab.active {
    border-color: var(--teal);
    background: rgba(46,196,182,0.08);
  }

  /* Publication cards: tighter */
  .patent-table tr { padding: 16px; }
  .patent-table td:first-child { font-size: 0.88rem; }

  /* Nav panel: full width */
  .nav-links { width: 100%; }

  /* Hero text */
  .hero h1 { font-size: clamp(2rem, 8vw, 3rem); }
  .hero h2 { font-size: 1rem; margin-bottom: 20px; }
  .hero p { font-size: 0.92rem; margin-bottom: 28px; }

  /* Contact */
  .contact-item { gap: 12px; }
  .map-embed { height: 220px; }

  /* Section titles */
  .section-title { margin-bottom: 16px; }
  .section-label { font-size: 0.68rem; }
  .member-category { font-size: 0.68rem; margin: 40px 0 16px; }
}