/* =========================================================
   KUMARAGURU INSTITUTIONS — PUBLIC RESEARCH DISCOVERY PORTAL
   2026 DESIGN SYSTEM STYLESHEET
   
   COLOR PALETTE SPECIFICATION:
   --ki-navy:       #113C56 (Primary institutional navy)
   --ki-blue:       #316C8D (Secondary accent blue)
   --ki-blue-soft:  #EAF3F7 (Soft highlight surface)
   --ki-cyan:       #75B3C8 (Cyan network accent)
   --ki-green:      #83CF94 (Mint/green accent)
   --ki-green-soft: #EAF8EC (Soft green badge background)
   --ki-ink:        #18242D (Dark typography)
   --ki-body:       #52636D (Body typography)
   --ki-muted:      #75838C (Muted labels)
   --ki-border:     rgba(21,62,84,.12) (Subtle borders)
   --ki-surface:    rgba(255,255,255,.84) (Glass surfaces)
   --ki-background: #F5F9FB (Canvas background)
========================================================= */

:root {
  --ki-navy: #113C56;
  --ki-blue: #316C8D;
  --ki-blue-soft: #EAF3F7;
  --ki-cyan: #75B3C8;
  --ki-green: #83CF94;
  --ki-green-soft: #EAF8EC;
  --ki-ink: #18242D;
  --ki-body: #52636D;
  --ki-muted: #75838C;
  --ki-border: rgba(21,62,84,.12);
  --ki-surface: rgba(255,255,255,.82);
  --ki-background: #F5F9FB;

  /* Glass card surfaces */
  --glass-bg:     rgba(255,255,255,0.72);
  --glass-border: rgba(49,108,141,0.14);
  --glass-blur:   blur(14px);
  --glass-shadow: 0 8px 32px rgba(17,60,86,0.10);

  /* Backward Compatibility Aliases */
  --primary-color: var(--ki-navy);
  --secondary-color: var(--ki-blue);
  --card-bg: var(--ki-blue-soft);
  --page-bg: var(--ki-background);
  --surface-white: #ffffff;
  --text-main: var(--ki-ink);
  --emerald-accent: #059669;
  --primary-shadow: rgba(17, 60, 86, 0.10);
  --line: var(--ki-border);
  --line-strong: rgba(21,62,84,.22);

  /* Typography & Layout Tokens */
  --display: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --nav-h: 80px;
  --container-width: 100%;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--ki-background);
}

body {
  background-color: var(--ki-background);
  color: var(--ki-ink);
  font-family: var(--body);
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Screen Reader Only Accessible Utility */
.sr-only {
  position: absolute !important; width: 1px !important; height: 1px !important;
  padding: 0 !important; margin: -1px !important; overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important; white-space: nowrap !important; border: 0 !important;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .cursor-glow { display: none !important; }
}

/* ================= SIMPLE & ELEGANT AMBIENT BACKGROUND ================= */
.ambient-bg {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.ambient-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
  will-change: transform;
}

.glow-1 {
  top: -80px;
  right: 8%;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(117, 179, 200, 0.20) 0%, rgba(117, 179, 200, 0.02) 60%, transparent 80%);
  animation: gentleFloat1 18s ease-in-out infinite alternate;
}

.glow-2 {
  top: 38%;
  left: -80px;
  width: 580px;
  height: 580px;
  background: radial-gradient(circle, rgba(49, 108, 141, 0.14) 0%, rgba(49, 108, 141, 0.02) 60%, transparent 80%);
  animation: gentleFloat2 22s ease-in-out infinite alternate;
}

.glow-3 {
  bottom: -80px;
  right: 25%;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(131, 207, 148, 0.16) 0%, rgba(131, 207, 148, 0.02) 60%, transparent 80%);
  animation: gentleFloat3 20s ease-in-out infinite alternate;
}

@keyframes gentleFloat1 {
  0%   { transform: translate(0, 0); }
  100% { transform: translate(-40px, 45px); }
}

@keyframes gentleFloat2 {
  0%   { transform: translate(0, 0); }
  100% { transform: translate(45px, -35px); }
}

@keyframes gentleFloat3 {
  0%   { transform: translate(0, 0); }
  100% { transform: translate(-30px, -25px); }
}

/* Container Layout — Positioned cleanly above ambient background */
.container, section, .hero-2026 {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 100% !important;
  margin: 0 auto;
  padding-left: clamp(18px, 3.5vw, 56px) !important;
  padding-right: clamp(18px, 3.5vw, 56px) !important;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font-family: inherit; }

::selection {
  background: var(--ki-navy);
  color: #ffffff;
}

/* Film Grain Texture */
.grain {
  position: fixed; inset: 0; z-index: 2; pointer-events: none; opacity: .025; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Ambient Cursor Glow */
.cursor-glow {
  position: fixed; width: 100px; height: 100px; border-radius: 50%;
  pointer-events: none; z-index: 2;
  background: radial-gradient(circle, rgba(49, 108, 141, 0.06) 0%, rgba(117, 179, 200, 0.03) 50%, transparent 70%);
  transform: translate(-50%, -50%);
  will-change: transform;
  transition: opacity .3s ease;
}
@media (hover: none) { .cursor-glow { display: none; } }

/* ================= STICKY INSTITUTIONAL NAVBAR ================= */
nav#siteNav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 3.5%; height: var(--nav-h);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  background: rgba(255, 255, 255, 0.85);
  border-bottom: 1px solid var(--ki-border);
  transition: background .3s ease, padding .3s ease, border-color .3s ease, box-shadow .3s ease;
}

nav#siteNav.scrolled {
  background: rgba(255, 255, 255, 0.96);
  border-bottom-color: rgba(21, 62, 84, 0.18);
  box-shadow: 0 8px 30px rgba(17, 60, 86, 0.08);
  padding-top: 10px; padding-bottom: 10px;
}

.brand {
  font-family: var(--display); font-size: 18px; font-weight: 800; letter-spacing: -0.3px;
  display: flex; align-items: center; gap: 12px; color: var(--ki-navy);
}

.brand-logo-wrap {
  display: flex; align-items: center; justify-content: center;
  background: #ffffff; border-radius: 10px; padding: 5px 12px;
  box-shadow: 0 2px 10px rgba(17, 60, 86, 0.08);
  border: 1px solid var(--ki-border);
}
.brand-logo { height: 34px; width: auto; object-fit: contain; }

.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav-links a {
  color: var(--ki-body); font-size: 13.5px; font-weight: 600; letter-spacing: 0.2px;
  position: relative; padding: 6px 0; transition: color .2s ease;
}
.nav-links a::after {
  content: ''; position: absolute; left: 0; bottom: 0; height: 2px; width: 0;
  background: var(--ki-navy); transition: width .25s ease;
}
.nav-links a:hover, .nav-links a.active { color: var(--ki-navy); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

.nav-search-btn {
  background: var(--ki-surface); border: 1px solid var(--ki-border); color: var(--ki-navy);
  padding: 8px 14px; border-radius: 20px; cursor: pointer; display: flex; align-items: center; gap: 8px;
  transition: all .2s ease; font-size: 12.5px; font-weight: 600;
  min-height: 44px; min-width: 44px; justify-content: center;
}

.nav-search-btn:hover {
  background: #ffffff; border-color: var(--ki-blue); box-shadow: 0 4px 12px rgba(17, 60, 86, 0.1);
}
.search-kbd-shortcut {
  font-size: 10px; font-weight: 700; background: var(--ki-blue-soft); color: var(--ki-blue);
  padding: 2px 6px; border-radius: 4px; border: 1px solid rgba(49, 108, 141, 0.2);
}

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--ki-navy); border-radius: 2px; transition: .3s; }

/* Mobile Menu Slide-Down */
@media (max-width: 900px) {
  .nav-links {
    position: absolute; top: var(--nav-h); left: 0; right: 0; background: #ffffff;
    flex-direction: column; padding: 24px; border-bottom: 1px solid var(--ki-border);
    box-shadow: 0 12px 30px rgba(0,0,0,0.1); display: none;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
}

/* ================= HERO SECTION (52% / 48% SPLIT) ================= */
.hero-2026 {
  padding-top: calc(var(--nav-h) + 40px);
  padding-bottom: 40px;
  min-height: 82vh;
  display: flex; flex-direction: column; justify-content: space-between;
}

.hero-grid {
  display: grid;
  grid-template-columns: 52% 48%;
  gap: 32px;
  align-items: center;
}

.hero-left {
  padding-right: 20px;
}

.hero-kicker {
  display: inline-block;
  font-family: var(--display);
  font-size: 11.5px;
  font-weight: 800;
  letter-spacing: 1.8px;
  color: var(--ki-blue);
  text-transform: uppercase;
  background: var(--ki-blue-soft);
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid rgba(49, 108, 141, 0.15);
  margin-bottom: 20px;
}

.hero-headline {
  font-family: var(--display);
  font-size: clamp(2.6rem, 5vw, 5rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -1.5px;
  color: var(--ki-navy);
  margin-bottom: 24px;
}

.hero-headline .highlight {
  color: var(--ki-blue);
  position: relative;
}

.hero-subhead {
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  color: var(--ki-body);
  line-height: 1.65;
  max-width: 620px;
  margin-bottom: 36px;
}

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

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 13px 26px; border-radius: 12px; font-weight: 700; font-size: 14px;
  transition: all .25s cubic-bezier(.22,.61,.36,1); border: none; cursor: pointer;
  text-decoration: none;
}

.btn-primary {
  background: var(--ki-navy); color: #ffffff;
  box-shadow: 0 4px 16px rgba(17, 60, 86, 0.2);
}
.btn-primary:hover {
  background: var(--ki-blue); transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(17, 60, 86, 0.28);
}

.btn-secondary {
  background: #ffffff; color: var(--ki-navy);
  border: 1px solid var(--ki-border);
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.btn-secondary:hover {
  border-color: var(--ki-blue); background: var(--ki-blue-soft);
  transform: translateY(-2px);
}

.hero-link {
  font-weight: 700; font-size: 14px; color: var(--ki-blue);
  padding: 8px 12px; transition: color .2s ease;
}
.hero-link:hover { color: var(--ki-navy); text-decoration: underline; }

/* 3D ORB CONTAINER RIGHT 48% */
.hero-right {
  position: relative;
  display: flex; justify-content: center; align-items: center;
}

.orb-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 11;
  max-height: 480px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #ffffff;
  border: 1px solid var(--ki-border);
  box-shadow: 0 16px 40px rgba(17, 60, 86, 0.08);
}

.hero-backdrop-img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; opacity: 0.15; filter: saturate(1.2) contrast(1.1);
  mix-blend-mode: multiply; pointer-events: none;
}

#hero-orb-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
}

.orb-legend {
  position: absolute; bottom: 16px; left: 20px; right: 20px;
  display: flex; gap: 16px; justify-content: center;
  background: rgba(255, 255, 255, 0.85); backdrop-filter: blur(12px);
  padding: 8px 16px; border-radius: 20px; border: 1px solid var(--ki-border);
  font-size: 11px; font-weight: 700; color: var(--ki-body);
}

.orb-node-type { display: flex; align-items: center; gap: 6px; }
.orb-node-type::before { content: ''; width: 8px; height: 8px; border-radius: 50%; }
.cluster-dot::before { background: var(--ki-navy); }
.dept-dot::before { background: var(--ki-blue); }
.domain-dot::before { background: var(--ki-cyan); }

/* EDITORIAL LIVE STATISTICS STRIP */
.hero-stats-strip {
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(255, 255, 255, 0.9); backdrop-filter: blur(16px);
  border: 1px solid var(--ki-border); border-radius: var(--radius-md);
  padding: 24px 40px; margin-top: 40px;
  box-shadow: 0 10px 30px rgba(17, 60, 86, 0.04);
}

.stat-item { text-align: center; flex: 1; }
.stat-value {
  font-family: var(--display); font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 800; color: var(--ki-navy); line-height: 1.1;
}
.stat-label {
  font-size: 12.5px; font-weight: 600; color: var(--ki-muted); margin-top: 4px;
}
.stat-divider { width: 1px; height: 40px; background: var(--ki-border); }

/* Mobile Hero Breakpoint */
@media (max-width: 992px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-left { padding-right: 0; }
  .hero-stats-strip { grid-template-columns: repeat(2, 1fr); display: grid; gap: 20px; padding: 24px; }
  .stat-divider { display: none; }
}

/* ================= SECTION HEADINGS ================= */
section { padding: 60px 0; }
section.tight { padding: 44px 0; }

.section-head {
  margin-bottom: 36px;
}
.section-head .kicker {
  font-family: var(--display); font-size: 11px; font-weight: 800;
  letter-spacing: 1.5px; text-transform: uppercase; color: var(--ki-blue);
  margin-bottom: 8px;
}
.section-head h2 {
  font-family: var(--display); font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 800; color: var(--ki-navy); letter-spacing: -0.8px;
}
.section-head p {
  font-size: 15px; color: var(--ki-body); max-width: 680px; margin-top: 8px;
}

/* ================= RESEARCH UNIVERSE SECTION ================= */
.universe-section {
  background: var(--ki-blue-soft);
  border-top: 1px solid var(--ki-border);
  border-bottom: 1px solid var(--ki-border);
  padding: 64px 0;
}

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

.drill-breadcrumb {
  display: flex; align-items: center; gap: 8px; font-size: 13.5px; font-weight: 600;
}
.bc-item {
  color: var(--ki-blue); cursor: pointer; transition: color .2s ease;
}
.bc-item:hover { color: var(--ki-navy); text-decoration: underline; }
.bc-item.active { color: var(--ki-ink); font-weight: 700; cursor: default; }

.graph-actions { display: flex; gap: 8px; }
.btn-graph-action {
  background: #ffffff; border: 1px solid var(--ki-border); color: var(--ki-navy);
  padding: 6px 14px; border-radius: 8px; font-weight: 700; font-size: 13px;
  cursor: pointer; transition: all .2s ease;
}
.btn-graph-action:hover {
  background: var(--ki-blue-soft); border-color: var(--ki-blue);
}

.universe-display-panel {
  position: relative; width: 100%; border-radius: var(--radius-lg);
  background: var(--glass-bg); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow); overflow: hidden;
}

.universe-canvas-wrap {
  width: 100%; height: 60vh; min-height: 480px; position: relative;
  background: radial-gradient(circle at center, #ffffff 0%, var(--ki-background) 100%);
}

#universe-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }

/* FALLBACK HIERARCHY CARDS */
.cluster-grid-wrap {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px; padding: 24px;
}

.cluster-zoom-card {
  background: var(--glass-bg); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md); padding: 24px; cursor: pointer;
  transition: all .28s cubic-bezier(.22,.61,.36,1);
  box-shadow: var(--glass-shadow);
}
.cluster-zoom-card:hover {
  transform: translateY(-5px);
  background: rgba(255,255,255,0.90);
  border-color: var(--ki-cyan); box-shadow: 0 16px 40px rgba(17,60,86,0.18);
}
.cluster-zoom-card h3 {
  font-family: var(--display); font-size: 18px; font-weight: 800; color: var(--ki-navy);
  margin: 12px 0 6px 0;
}
.cluster-zoom-card p { font-size: 13px; color: var(--ki-body); line-height: 1.5; }
.cluster-stats-row {
  display: flex; gap: 16px; margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--ki-border);
}
.cs-box { flex: 1; }
.cs-num { font-family: var(--display); font-size: 18px; font-weight: 800; color: var(--ki-navy); }
.cs-lbl { font-size: 11px; color: var(--ki-muted); text-transform: uppercase; font-weight: 700; }

/* ================= CHARTS GRID ================= */
.charts-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
}
@media (max-width: 900px) { .charts-grid { grid-template-columns: 1fr; } }

.chart-card {
  background: var(--glass-bg); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border); border-radius: var(--radius-md);
  padding: 24px; box-shadow: var(--glass-shadow);
}
.chart-card-header {
  display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 20px;
}
.chart-card-header h3 { font-family: var(--display); font-size: 17px; font-weight: 800; color: var(--ki-navy); }
.chart-badge {
  font-size: 11px; font-weight: 700; background: var(--ki-blue-soft); color: var(--ki-blue);
  padding: 4px 10px; border-radius: 12px;
}
.chart-container { position: relative; height: 280px; width: 100%; }

/* ================= EDITORIAL CLUSTER CARDS ================= */
.editorial-clusters-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px;
}

.editorial-cluster-card {
  background: var(--glass-bg); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border); border-radius: var(--radius-md);
  overflow: hidden; cursor: pointer; transition: all .3s cubic-bezier(.22,.61,.36,1);
  display: flex; flex-direction: column; box-shadow: var(--glass-shadow);
}
.editorial-cluster-card:hover {
  transform: translateY(-5px); border-color: var(--ki-blue);
  box-shadow: 0 16px 36px rgba(17, 60, 86, 0.12);
}
.cluster-card-image-wrap {
  position: relative; width: 100%; aspect-ratio: 16 / 9; overflow: hidden; background: var(--ki-blue-soft);
}
.cluster-card-image {
  width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease;
}
.editorial-cluster-card:hover .cluster-card-image { transform: scale(1.04); }

.cluster-badge {
  position: absolute; bottom: 12px; right: 12px; background: rgba(17, 60, 86, 0.85);
  backdrop-filter: blur(8px); color: #ffffff; font-size: 11px; font-weight: 700;
  padding: 4px 10px; border-radius: 12px;
}
.cluster-card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.cluster-code { font-size: 11px; font-weight: 800; letter-spacing: 1px; color: var(--ki-blue); margin-bottom: 6px; }
.cluster-card-body h3 { font-family: var(--display); font-size: 19px; font-weight: 800; color: var(--ki-navy); margin-bottom: 8px; }
.cluster-card-body p { font-size: 13.5px; color: var(--ki-body); line-height: 1.55; flex: 1; }
.cluster-card-footer {
  margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--ki-border);
  display: flex; align-items: center; justify-content: space-between; font-size: 13px; font-weight: 700;
}
.cluster-paper-count { color: var(--ki-muted); }
.cluster-explore-link { color: var(--ki-blue); }

/* ================= DEPARTMENTS HORIZONTAL CARDS ================= */
.dept-horizontal-scroll {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 18px;
}

.dept-activity-card {
  background: var(--glass-bg); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border); border-radius: var(--radius-md);
  padding: 20px; cursor: pointer; transition: all .25s ease; box-shadow: var(--glass-shadow);
}
.dept-activity-card:hover {
  border-color: var(--ki-blue); transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(17, 60, 86, 0.08);
}
.dept-card-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.dept-tag { font-size: 10px; font-weight: 800; letter-spacing: 1px; color: var(--ki-blue); background: var(--ki-blue-soft); padding: 3px 8px; border-radius: 6px; }
.dept-paper-num { font-size: 12px; font-weight: 700; color: var(--ki-navy); }
.dept-activity-card h4 { font-family: var(--display); font-size: 16px; font-weight: 800; color: var(--ki-navy); margin-bottom: 6px; }
.dept-activity-card p { font-size: 12.5px; color: var(--ki-body); }
.dept-card-footer { margin-top: 14px; text-align: right; font-size: 12.5px; font-weight: 700; color: var(--ki-blue); }

/* ================= DOMAINS CHIPS ================= */
.domains-chips-wrap { display: flex; flex-wrap: wrap; gap: 12px; }
.domain-chip {
  background: var(--glass-bg); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border); border-radius: 20px;
  padding: 10px 18px; display: inline-flex; align-items: center; gap: 10px;
  cursor: pointer; transition: all .2s ease; box-shadow: var(--glass-shadow);
}
.domain-chip:hover {
  background: var(--ki-navy); color: #ffffff; border-color: var(--ki-navy);
  transform: translateY(-2px); box-shadow: 0 6px 16px rgba(17, 60, 86, 0.15);
}
.chip-name { font-size: 13.5px; font-weight: 600; }
.chip-count {
  font-size: 11px; font-weight: 800; background: var(--ki-blue-soft); color: var(--ki-blue);
  padding: 2px 7px; border-radius: 10px;
}
.domain-chip:hover .chip-count { background: rgba(255,255,255,0.2); color: #ffffff; }

/* ================= PAPER CARDS ================= */
.paper-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 20px; }

.paper-card {
  background: var(--glass-bg); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border); border-radius: var(--radius-md);
  padding: 24px; cursor: pointer; transition: all .25s ease; display: flex; flex-direction: column;
  box-shadow: var(--glass-shadow);
}
.paper-card:hover {
  border-color: var(--ki-cyan); transform: translateY(-4px);
  background: rgba(255,255,255,0.92);
  box-shadow: 0 16px 40px rgba(17,60,86,0.18);
}
.paper-meta { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.paper-dept { font-size: 12px; font-weight: 700; color: var(--ki-blue); }
.status-badge { font-size: 11px; font-weight: 700; padding: 4px 10px; border-radius: 10px; }
.status-badge.verified { background: var(--ki-green-soft); color: #15803d; }
.paper-card h3 { font-family: var(--display); font-size: 17px; font-weight: 800; color: var(--ki-navy); margin-bottom: 10px; line-height: 1.35; }
.paper-card p { font-size: 13.5px; color: var(--ki-body); line-height: 1.55; flex: 1; margin-bottom: 18px; }
.paper-footer { display: flex; align-items: center; justify-content: space-between; font-size: 12.5px; font-weight: 700; }
.author-tag { color: var(--ki-muted); }
.paper-read-link { color: var(--ki-blue); }

/* NARRATIVE SECTION */
.narrative-section { background: #ffffff; border-top: 1px solid var(--ki-border); padding: 72px 0; }
.narrative-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
@media (max-width: 900px) { .narrative-grid { grid-template-columns: 1fr; } }
.narrative-image-wrap { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--ki-border); aspect-ratio: 16 / 10; }
.narrative-img { width: 100%; height: 100%; object-fit: cover; }
.narrative-content h2 { font-family: var(--display); font-size: 2.2rem; font-weight: 800; color: var(--ki-navy); margin: 10px 0 16px 0; }
.narrative-content p { font-size: 15px; color: var(--ki-body); line-height: 1.65; margin-bottom: 24px; }
.narrative-highlights { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.nh-item { background: var(--glass-bg); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur); padding: 16px; border-radius: 12px; border: 1px solid var(--glass-border); }
.nh-item strong { display: block; font-size: 14px; color: var(--ki-navy); margin-bottom: 4px; }
.nh-item span { font-size: 12.5px; color: var(--ki-muted); line-height: 1.4; display: block; }

/* ================= FOOTER ================= */
footer#siteFooter {
  position: relative;
  z-index: 1;
  background: var(--ki-navy); color: #ffffff; padding: 64px 3.5% 32px 3.5%;
  border-top: 1px solid var(--ki-border); margin-top: 40px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 40px; margin-bottom: 48px; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .footer-grid { grid-template-columns: 1fr; } }

.footer-brand-logo { color: #ffffff; margin-bottom: 16px; }
.footer-col h4 { font-family: var(--display); font-size: 14px; font-weight: 800; letter-spacing: 0.5px; margin-bottom: 20px; color: var(--ki-cyan); }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: #d0e4ee; font-size: 13.5px; transition: color .2s ease; }
.footer-col a:hover { color: #ffffff; }

.footer-social-links a { display: flex; align-items: center; gap: 10px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12); padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center; font-size: 12.5px; color: #a4c4d6; flex-wrap: wrap; gap: 12px;
}

/* ================= SLIDE-OVER DETAILS PANEL (480px) ================= */
.slideover-backdrop {
  position: fixed; inset: 0; z-index: 190; background: rgba(17, 60, 86, 0.4);
  backdrop-filter: blur(4px); opacity: 0; pointer-events: none; transition: opacity .3s ease;
}
.slideover-backdrop.open { opacity: 1; pointer-events: auto; }

.slideover-panel {
  position: fixed; top: 0; right: 0; bottom: 0; width: 480px; max-width: 90vw;
  z-index: 200; background: #ffffff; box-shadow: -10px 0 40px rgba(0,0,0,0.15);
  transform: translateX(100%); transition: transform .35s cubic-bezier(.22,.61,.36,1);
  display: flex; flex-direction: column;
}
.slideover-panel.open { transform: translateX(0); }

.slideover-header {
  padding: 24px 28px; border-bottom: 1px solid var(--ki-border); position: relative;
  background: var(--ki-blue-soft);
}
.slideover-tag { font-size: 10px; font-weight: 800; letter-spacing: 1.5px; color: var(--ki-blue); margin-bottom: 4px; }
.slideover-header h3 { font-family: var(--display); font-size: 20px; font-weight: 800; color: var(--ki-navy); padding-right: 30px; }
.slideover-close {
  position: absolute; top: 20px; right: 20px; background: none; border: none;
  font-size: 26px; cursor: pointer; color: var(--ki-navy); font-weight: 700;
}
.slideover-body { padding: 28px; flex: 1; overflow-y: auto; }

@media (max-width: 600px) {
  .slideover-panel { width: 100vw; max-width: 100vw; top: 15vh; border-radius: 20px 20px 0 0; transform: translateY(100%); }
  .slideover-panel.open { transform: translateY(0); }
}

/* ================= CMD+K SEARCH OVERLAY ================= */
.search-overlay {
  position: fixed; inset: 0; z-index: 250; display: none; align-items: flex-start; justify-content: center;
  padding-top: 10vh;
}
.search-overlay.open { display: flex; }
.search-overlay-backdrop { position: fixed; inset: 0; background: rgba(17, 60, 86, 0.6); backdrop-filter: blur(6px); }
.search-overlay-container {
  position: relative; z-index: 251; width: 640px; max-width: 92vw; background: #ffffff;
  border-radius: var(--radius-md); box-shadow: 0 20px 50px rgba(0,0,0,0.25); border: 1px solid var(--ki-border);
  overflow: hidden; animation: searchPopIn .25s ease-out;
}
@keyframes searchPopIn {
  0% { transform: scale(0.96); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

.search-overlay-head {
  display: flex; align-items: center; gap: 14px; padding: 18px 24px; border-bottom: 1px solid var(--ki-border);
  background: #ffffff;
}
.search-overlay-head input {
  flex: 1; border: none; outline: none; font-size: 16px; font-weight: 600; color: var(--ki-navy); background: transparent;
}
.search-esc-hint { font-size: 11px; font-weight: 700; background: var(--ki-blue-soft); color: var(--ki-blue); padding: 3px 8px; border-radius: 4px; }
.search-overlay-results { max-height: 440px; overflow-y: auto; padding: 16px 24px; }
.search-initial-state { padding: 30px; text-align: center; color: var(--ki-muted); font-size: 14px; }

.search-group-title { font-size: 11px; font-weight: 800; letter-spacing: 1px; color: var(--ki-blue); text-transform: uppercase; margin: 12px 0 8px 0; }
.search-result-item {
  padding: 12px 16px; border-radius: 10px; background: var(--ki-background); margin-bottom: 8px;
  cursor: pointer; transition: background .15s ease;
}
.search-result-item:hover { background: var(--ki-blue-soft); }
.search-result-item strong { display: block; font-size: 14px; color: var(--ki-navy); }
.search-result-item span { font-size: 12px; color: var(--ki-muted); }