:root {
  --navy: #00153f;
  --blue: #00153f;
  --sky: #1091d1;
  --teal: #1091d1;
  --teal-rgb: 16, 145, 209;
  --gold: #00153f;
  --cream: #ffffff;
  --paper: #f8fafc;
  --border: #e2e8f0;
  --muted: #64748b;
  --text: #334155;
  --mono: 'IBM Plex Mono', monospace;
  --serif: 'IBM Plex Serif', serif;
  --sans: 'IBM Plex Sans', sans-serif;
}

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

body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--text);
  font-size: 15px;
  line-height: 1.7;
  overflow-x: hidden;
  width: 100%;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  width: 100%;
}

/* ─── DUAL-ROW NAV ───────────────────────────────────── */
.dual-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}

.nav-top {
  background: #ffffff;
  display: flex;
  align-items: center;
  padding: 0 28px;
  height: 80px;
  border-bottom: 1px solid #e2e8f0;
}

.nav-bottom {
  background: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 20px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.brand-logo {
  height: 54px;
  width: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  flex: 1;
}

.nav-links-secondary {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
}

.nav-links a {
  color: var(--blue);
  text-decoration: none;
  font-size: 16px;
  font-weight: 600;
  padding: 0 16px;
  height: 100%;
  display: flex;
  align-items: center;
  transition: background 0.2s, color 0.2s;
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--teal);
}

.nav-links-secondary a {
  color: #ffffff;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0 20px;
  height: 100%;
  display: flex;
  align-items: center;
  transition: background 0.2s;
  white-space: nowrap;
}

.nav-links-secondary a:hover {
  background: rgba(255, 255, 255, 0.1);
}

.nav-links-secondary a.active {
  background: var(--blue);
}

.nav-auth {
  display: flex;
  gap: 8px;
  align-items: center;
  flex: 0 0 auto;
  justify-content: flex-end;
}

.nav-auth span {
  color: var(--text) !important;
}

.nav-auth .btn-outline {
  color: var(--blue) !important;
  border-color: var(--blue) !important;
}

.nav-hamburger {
  display: none;
  background: none;
  border: none;
  padding: 10px;
  cursor: pointer;
  flex-direction: column;
  gap: 4px;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--blue);
}

@media (max-width: 800px) {
  .dual-nav {
    z-index: 3000;
  }

  .nav-bottom {
    display: none;
  }

  .nav-top .nav-links {
    display: none;
  }

  .nav-hamburger {
    display: flex !important;
    background: rgba(255, 255, 255, 0.15) !important;
    border: 1px solid rgba(255, 255, 255, 0.3) !important;
    border-radius: 6px;
    padding: 8px 10px;
    cursor: pointer;
    flex-direction: column;
    gap: 4px;
  }

  .nav-top {
    justify-content: space-between;
    padding: 0 16px;
    height: 64px;
    background: var(--navy);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .brand-logo {
    height: 40px;
    filter: brightness(0) invert(1) !important;
  }

  .nav-brand {
    margin-right: 0;
    flex: none;
  }

  .nav-auth {
    display: flex;
  }

  .nav-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: #ffffff !important;
  }
}

/* ─── NAV DROPDOWN ───────────────────────────────────── */
.nav-dropdown {
  position: relative;
  height: 100%;
}

.nav-dropdown>a {
  display: flex;
  align-items: center;
  gap: 5px;
  height: 100%;
}

.nav-dropdown>a::after {
  content: '';
  border: 4px solid transparent;
  border-top-color: currentColor;
  margin-top: 3px;
  transition: transform .2s;
}

.nav-dropdown:hover>a::after {
  transform: rotate(180deg);
  margin-top: -3px;
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: #ffffff;
  border: 1px solid var(--border);
  border-top: 2px solid var(--blue);
  min-width: 290px;
  z-index: 1000;
  box-shadow: 0 8px 32px rgba(0, 0, 0, .05);
  border-radius: 0 0 4px 4px;
}

.nav-dropdown:hover .dropdown-menu {
  display: block;
}

.dropdown-menu a {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 18px;
  color: var(--muted);
  text-decoration: none;
  font-size: 16px;
  border-bottom: 1px solid var(--border);
  transition: background .15s, color .15s;
  height: auto;
  border-left: none;
  border-right: none;
}

.dropdown-menu a:last-child {
  border-bottom: none;
}

.dropdown-menu a:hover {
  background: #f1f5f9;
  color: var(--navy);
  border-color: transparent;
}

.dropdown-menu a .dd-icon-svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 1px;
  color: var(--teal);
}

.icon-svg {
  width: 1.2em;
  height: 1.2em;
  vertical-align: middle;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.dropdown-menu a .dd-label {
  font-weight: 500;
  display: block;
}

.dropdown-menu a .dd-sub {
  font-size: 13px;
  color: var(--muted);
  display: block;
  font-family: var(--mono);
  margin-top: 2px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: 3px;
  font-size: 12.5px;
  font-family: var(--sans);
  font-weight: 500;
  cursor: pointer;
  transition: all .2s;
  border: 1px solid transparent;
  text-decoration: none;
}

.btn-outline {
  border-color: var(--border);
  color: var(--navy);
  background: transparent;
}

.btn-outline:hover {
  border-color: var(--navy);
  color: var(--navy);
  background: var(--border);
}

.btn-outline-light {
  border-color: rgba(255, 255, 255, 0.4);
  color: #e0eaf5;
  background: rgba(255, 255, 255, 0.08);
}

.btn-outline-light:hover {
  border-color: rgba(255, 255, 255, 0.8);
  color: #ffffff;
  background: rgba(255, 255, 255, 0.15);
}

.btn-primary {
  background: var(--blue);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--sky);
  color: #1e293b;
}

.btn-gold {
  background: var(--gold);
  color: #ffffff;
}

.btn-gold:hover {
  background: #c5a030;
  color: #ffffff;
}

.btn-teal {
  background: var(--teal);
  color: #ffffff;
}

.btn-teal:hover {
  background: #14b8a6;
  color: #ffffff;
}

.btn-sm {
  padding: 4px 12px;
  font-size: 12px;
}

.btn-danger {
  background: #f87171;
  color: #fff;
}

.btn-danger:hover {
  background: #ef4444;
}

/* ─── SECTIONS (SPA tabs) ────────────────────────────── */
.page-section {
  display: none;
}

.page-section.active {
  display: block;
  position: relative;
  overflow: hidden;
}

/* ─── HERO ───────────────────────────────────────────── */
#home {
  position: relative;
  overflow: hidden;
  background: transparent;
  flex-direction: column;
}

.hero-bg-video {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.15;
  z-index: -1;
  pointer-events: none;
}

#home.active {
  display: flex !important;
}

.hero-split {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  padding: 64px 80px 0;
  gap: 32px;
  width: 100%;
}

.hero-left {
  flex: 1.1;
  min-width: 0;
  max-width: 55%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(200, 168, 75, .15);
  border: 1px solid rgba(200, 168, 75, .4);
  color: var(--gold);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 1.5px;
  padding: 6px 16px;
  border-radius: 2px;
  margin-bottom: 28px;
  width: fit-content;
  text-transform: uppercase;
}

.hero-title {
  font-family: 'IBM Plex Serif', serif;
  font-size: clamp(44px, 3.8vw, 60px);
  font-weight: 300;
  color: var(--navy);
  line-height: 1.15;
  margin-bottom: 24px;
}

.hero-title *,
.hero-title span,
.hero-title strong {
  font-family: 'IBM Plex Serif', serif;
}

.hero-title-sub {
  font-family: 'IBM Plex Serif', serif;
  font-weight: 300;
  color: var(--navy);
}

.nccai-brand {
  font-family: 'IBM Plex Serif', serif;
  color: var(--gold);
  font-weight: 700;
}

.nccai-letter {
  color: var(--gold);
  font-weight: 700;
  font-family: 'IBM Plex Serif', serif;
}

.hero-desc {
  color: #000000;
  font-size: clamp(17px, 1.5vw, 20px);
  line-height: 1.8;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero-actions .btn {
  font-size: 15px !important;
  padding: 13px 30px !important;
  border-radius: 4px !important;
}

.hero-stats {
  display: flex;
  gap: 52px;
  flex-wrap: wrap;
  border-top: 1px solid var(--border);
  padding-top: 32px;
}

.stat-num {
  font-family: var(--mono);
  font-size: 36px;
  color: var(--gold);
  font-weight: 500;
  display: block;
}

.stat-label {
  font-size: 13px;
  color: #000000;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.hero-right {
  flex: 0 0 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-svg {
  width: 100%;
  max-width: 400px;
  height: auto;
}

.hero-wave {
  line-height: 0;
}

.hero-wave svg {
  display: block;
  width: 100%;
}

.home-cards-wrap {
  background: transparent;
  padding: 56px 80px 64px;
}

.home-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  width: 100%;
  margin: 0 0 40px 0;
}

.home-card {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: none;
  border-radius: 6px;
  padding: 24px;
  cursor: pointer;
  transition: box-shadow .2s, transform .2s;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.home-card:hover {
  box-shadow: 0 8px 28px rgba(0, 0, 0, .1);
  transform: translateY(-3px);
}

.home-card-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 6px;
}

.home-card h3 {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
  color: var(--navy);
}

.home-card p {
  font-size: 14.5px;
  color: var(--muted);
  line-height: 1.65;
  flex: 1;
}

.home-card-link {
  font-size: 14px;
  color: var(--blue);
  font-weight: 500;
}

.home-card:hover .home-card-link {
  color: var(--teal);
}

.home-research-strip {
  width: 100%;
  margin: 0 0 32px 0;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: none;
  border-radius: 6px;
  padding: 18px 28px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.strip-label {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--gold);
  white-space: nowrap;
}

.strip-items {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  flex: 1;
}

.strip-item {
  transition: background .15s;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  color: var(--navy);
  font-size: 14px;
  padding: 6px 16px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  gap: 5px;
  border: none;
}

.home-partners {
  width: 100%;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.partner-label {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--muted);
}

.partner-logos-row {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  align-items: flex-end;
}

.partner-logo-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: none;
  border-radius: 6px;
  padding: 16px 20px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 1px;
  color: var(--navy);
  font-weight: 600;
  text-transform: uppercase;
  min-width: 155px;
  transition: box-shadow .2s, transform .2s;
}

.partner-logo-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, .08);
  transform: translateY(-2px);
}

.partner-logo-img {
  width: 135px;
  height: 135px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.partner-logo-icon {
  font-size: 20px;
}

/* ─── RESEARCH AREAS ─────────────────────────────────────── */
.ra-card {
  background: var(--cream);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 24px;
  cursor: pointer;
  transition: box-shadow .2s, transform .2s;
  border-top: 3px solid var(--teal);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ra-card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, .1);
  transform: translateY(-3px);
}

.ra-card-icon {
  font-size: 28px;
}

.ra-card-ch {
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--gold);
}

.ra-card h3 {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 600;
  color: var(--navy);
}

.ra-card p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.65;
  flex: 1;
}

.ra-card-link {
  font-size: 13px;
  color: var(--blue);
  font-weight: 500;
}

.ra-card:hover .ra-card-link {
  color: var(--teal);
}

.ra-page-hero {
  padding: 48px 80px 40px;
  color: var(--navy);
  border-bottom: 1px solid var(--border);
  background: #ffffff;
}

.ra-page-hero-inner {
  max-width: 900px;
}

.ra-back-btn {
  background: #ffffff;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
  padding: 6px 14px;
  border-radius: 3px;
  cursor: pointer;
  margin-bottom: 20px;
  display: inline-block;
  font-family: var(--sans);
  transition: background .2s;
}

.ra-back-btn:hover {
  background: var(--border);
  color: var(--navy);
}

.ra-page-ch {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 8px;
}

.ra-page-title {
  font-family: var(--serif);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 300;
  margin-bottom: 10px;
}

.ra-page-subtitle {
  font-size: 16px;
  color: var(--muted);
  font-style: italic;
}

.ra-content-grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 48px;
}

.ra-intro-box {
  background: #e8f0fb;
  border-left: 4px solid var(--blue);
  padding: 18px 22px;
  border-radius: 0 4px 4px 0;
  margin-bottom: 28px;
  font-size: 15px;
  color: var(--navy);
  line-height: 1.75;
}

.ra-section-h {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--navy);
  margin: 28px 0 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}

.ra-main p {
  font-size: 14.5px;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 8px;
}

.ra-sidebar-card {
  background: var(--cream);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 18px;
  margin-bottom: 16px;
}

.ra-sidebar-card h4 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 12px;
}

.ra-toc {
  list-style: none;
  padding: 0;
}

.ra-toc li {
  font-size: 12px;
  color: var(--muted);
  padding: 4px 0;
  font-family: var(--mono);
  border-bottom: 1px solid #ece7dd;
}

.ra-toc li:last-child {
  border-bottom: none;
}

/* ─── SECTION SHELLS ─────────────────────────────────── */
.section-wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 60px 32px;
}

.section-header {
  margin-bottom: 40px;
}

.section-tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-tag::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--teal);
}

.section-title {
  font-family: var(--serif);
  font-size: 32px;
  font-weight: 300;
  color: var(--navy);
  line-height: 1.2;
}

.section-title strong {
  font-weight: 600;
  color: var(--blue);
}

/* ─── ABOUT ─────────────────────────────────────────── */
#about .section-wrap {
  max-width: 100%;
  padding: 60px 80px;
  margin: 0;
}

#about .section-tag {
  font-size: 14px;
  letter-spacing: 2.5px;
}

#about .section-title {
  font-size: 44px;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.info-card {
  background: var(--cream);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 28px;
  border-top: 3px solid var(--blue);
}

.info-card h3 {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 16px;
}

.info-card p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.info-card ul {
  color: var(--muted);
  font-size: 16px;
  padding-left: 20px;
}

.info-card ul li {
  margin-bottom: 6px;
}

.partner-logos {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.partner-badge {
  background: var(--cream);
  color: var(--navy);
  border: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  padding: 8px 18px;
  border-radius: 4px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  transition: all 0.2s;
}

.partner-badge:hover {
  background: var(--paper);
  border-color: var(--blue);
  color: var(--blue);
  transform: translateY(-1px);
}

/* ─── TEAM ───────────────────────────────────────────── */
#team .section-wrap,
#experiments .section-wrap {
  max-width: 100%;
  padding: 60px 80px;
  margin: 0;
}

#team .section-tag {
  font-size: 14px;
  letter-spacing: 2.5px;
}

#team .section-title,
#experiments .section-title {
  font-size: 44px;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 40px;
}

.team-card {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  position: relative;
}

.team-card.featured {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(245, 245, 255, 0.8));
  border: 2px solid var(--teal);
}

.team-card:hover {
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
  transform: translateY(-8px);
  border-color: var(--teal);
}

.team-img-container {
  width: 100%;
  height: 380px;
  background: var(--navy);
  overflow: hidden;
  position: relative;
}

.team-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.5s ease;
}

.team-card:hover .team-img {
  transform: scale(1.05);
}

.team-body {
  padding: 32px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.team-name {
  font-family: var(--display);
  font-size: 28px;
  font-weight: 700;
  color: var(--navy);
}

.team-role {
  font-family: var(--mono);
  font-size: 15px;
  color: var(--teal);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.team-bio {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.6;
}

.badge-container {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
  padding-top: 16px;
}

.research-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  color: #fff;
  text-decoration: none;
  transition: opacity 0.2s, transform 0.2s;
}

.research-badge:hover {
  opacity: 0.9;
  transform: scale(1.05);
  color: #fff;
}

.badge-scholar {
  background: #4285F4;
}

.badge-scopus {
  background: #FF6600;
}

.badge-rg {
  background: #00CCBB;
}

.badge-linkedin {
  background: #0077B5;
}

.badge-site {
  background: var(--navy);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag {
  background: #e8f0fb;
  color: var(--blue);
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 20px;
  font-family: var(--mono);
}

.tag-teal {
  background: #e0f4f3;
  color: var(--teal);
}

.tag-gold {
  background: #fdf4dc;
  color: #8a6a00;
}

/* ─── PUBLICATIONS ───────────────────────────────────── */
.pub-toolbar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
  align-items: center;
}

.pub-toolbar input,
.pub-toolbar select {
  font-family: var(--sans);
  font-size: 13px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  background: var(--cream);
  border-radius: 3px;
  color: var(--text);
}

.pub-toolbar input {
  flex: 1;
  min-width: 200px;
}

.pub-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pub-item {
  background: var(--cream);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 18px 22px;
  border-left: 3px solid var(--blue);
  transition: border-color .2s;
}

.pub-item:hover {
  border-left-color: var(--teal);
}

.pub-title {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 4px;
}

.pub-meta {
  font-size: 12px;
  color: var(--muted);
  font-family: var(--mono);
  margin-bottom: 8px;
}

.pub-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.pub-type-badge {
  font-size: 10px;
  font-family: var(--mono);
  padding: 2px 8px;
  border-radius: 20px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.badge-journal {
  background: #e8f0fb;
  color: var(--blue);
}

.badge-conference {
  background: #e0f4f3;
  color: var(--teal);
}

.badge-book {
  background: #fdf4dc;
  color: #8a6a00;
}

/* ─── ALGORITHMS ─────────────────────────────────────── */
.algo-layout {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.filter-panel {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 20px;
  position: sticky;
  top: 72px;
  z-index: 10;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}

.filter-panel h4 {
  display: none;
  /* Hide header in horizontal mode */
}



.filter-group {
  margin-bottom: 0;
  flex: 1;
  min-width: 160px;
}

.filter-group label {
  display: block;
  font-size: 10px;
  font-family: var(--mono);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}

.filter-group select,
.filter-group input {
  width: 100%;
  font-family: inherit;
  font-size: 14px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  background: var(--paper);
  border-radius: 6px;
  color: var(--text);
  transition: border-color .2s;
}

.filter-group input:focus,
.filter-group select:focus {
  border-color: var(--blue);
  outline: none;
}

.algo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.algo-card {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  cursor: pointer;
  transition: all .3s cubic-bezier(.4, 0, .2, 1);
  border-top: 4px solid transparent;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.algo-card:hover {
  box-shadow: 0 6px 20px rgba(0, 0, 0, .08);
  transform: translateY(-2px);
  border-top-color: var(--teal);
}

.algo-card.interactive-card {
  border-top-color: var(--gold);
}

.algo-name {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 500;
  color: var(--navy);
  margin-bottom: 8px;
  line-height: 1.2;
}

.algo-domain {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--blue);
  margin-bottom: 12px;
  opacity: 0.8;
}

.algo-desc {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 24px;
  flex: 1;
}

.algo-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: auto;
}

.badge {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 4px;
}

.badge-fpga {
  background: #e8f7ee;
  color: #1a7a40;
}

.badge-interactive {
  background: #fdf4dc;
  color: #8a6a00;
}

/* ─── EXECUTION ──────────────────────────────────────── */
.exec-layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 40px;
  height: calc(100% - 20px);
}

.exec-panel {
  background: var(--cream);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 24px;
  height: fit-content;
  max-height: 100%;
  overflow-y: auto;
  position: sticky;
  top: 0;
}

.exec-panel h3 {
  font-family: var(--serif);
  font-size: 18px;
  color: var(--navy);
  margin-bottom: 16px;
}

.param-group {
  margin-bottom: 18px;
}

.param-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 6px;
}

.param-value {
  font-family: var(--mono);
  font-size: 12px;
  background: var(--navy);
  color: var(--gold);
  padding: 2px 8px;
  border-radius: 2px;
}

input[type=range] {
  width: 100%;
  accent-color: var(--teal);
  cursor: pointer;
}

.exec-result {
  background: #0d1b2e;
  border-radius: 4px;
  padding: 12px 16px;
  font-family: var(--mono);
  font-size: 12px;
  color: #8aafc8;
  border: 1px solid #1f3a54;
  max-height: 130px;
  overflow-y: auto;
  margin-bottom: 10px;
}

.exec-result .result-line {
  margin-bottom: 4px;
}

.exec-result .result-val {
  color: var(--gold);
}

.exec-result .result-header {
  color: var(--teal);
  font-weight: 500;
  margin-bottom: 12px;
}

.plot-container {
  background: #0d1b2e;
  border-radius: 4px;
  padding: 0;
  margin-top: 16px;
  border: 1px solid #1f3a54;
  overflow: hidden;
}

canvas {
  max-width: 100%;
  border-radius: 2px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 20px;
}

.status-idle {
  background: #2a3a4a;
  color: #8aafc8;
}

.status-running {
  background: #1a3a20;
  color: #5acc7a;
}

.status-done {
  background: #1a3020;
  color: #4cbb77;
}

.status-error {
  background: #3a1a1a;
  color: #e07070;
}

.progress-bar {
  height: 3px;
  background: #1f3a54;
  border-radius: 2px;
  margin: 12px 0;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--teal), var(--sky));
  border-radius: 2px;
  transition: width .3s ease;
  width: 0%;
}

/* ─── WORKSHOPS ──────────────────────────────────────── */
.workshop-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
  gap: 32px;
  align-items: start;
  margin-top: 20px;
}

.workshop-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  border-top: 5px solid var(--teal);
  transition: all .3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}

.workshop-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.08);
}

.admin-add-card:hover {
  background: rgba(var(--teal-rgb), 0.05) !important;
  border-color: var(--teal) !important;
}

.admin-add-card:hover svg {
  transform: scale(1.1);
  transition: transform 0.3s ease;
}

.workshop-card-header {
  background: #ffffff;
  padding: 24px 28px;
  color: var(--navy);
  cursor: pointer;
  user-select: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  position: relative;
}

.workshop-date {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--teal);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 10px;
  opacity: 0.8;
}

.workshop-title {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--navy);
  line-height: 1.3;
}

.workshop-body {
  max-height: 0;
  overflow: hidden;
  padding: 0 28px;
  transition: all .4s cubic-bezier(0.4, 0, 0.2, 1);
}

.workshop-venue {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

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

.workshop-actions {
  display: flex;
  gap: 8px;
}

/* ─── ADMIN / DASHBOARD (PREMIUM REDESIGN) ───────────── */
.admin-full-wrap {
  max-width: 1600px;
  margin: 0 auto;
  padding: 40px 40px 100px;
}

.admin-header-main {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 30px;
}

.admin-header-content h1 {
  font-family: var(--serif);
  font-size: 42px;
  color: var(--navy);
  margin: 0;
}

.admin-header-content p {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
  margin-top: 8px;
  letter-spacing: 0.5px;
}

.admin-stats-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.admin-card-glass {
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 16px;
  padding: 30px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.admin-card-glass:hover {
  transform: translateY(-5px);
  border-color: var(--teal);
}

.admin-section-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 16px;
  margin-bottom: 40px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
}

.admin-section-header {
  padding: 24px 30px;
  background: var(--navy);
  color: #fff;
}

.admin-section-header h3 {
  font-family: var(--serif);
  font-size: 20px;
  margin: 0;
  color: var(--gold);
}

.admin-section-header p {
  font-size: 12px;
  opacity: 0.7;
  margin-top: 4px;
}

.admin-table-scroll {
  overflow-x: auto;
}

.premium-table {
  width: 100%;
  border-collapse: collapse;
}

.premium-table thead th {
  background: #f8f9fa;
  padding: 18px 24px;
  text-align: left;
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
}

.premium-table tbody td {
  padding: 20px 24px;
  font-size: 14px;
  color: var(--text);
  border-bottom: 1px solid #f1f1f1;
  vertical-align: middle;
}

.premium-table tbody tr:hover {
  background: #fcfcfc;
}

.admin-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* ─── PROFILE PAGE ───────────────────────────────────── */
.profile-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 32px;
}

.profile-header {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-bottom: 50px;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--border);
}

.profile-avatar-wrap {
  position: relative;
  width: 140px;
  height: 140px;
}

.profile-avatar-wrap img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid #fff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.avatar-edit-btn {
  position: absolute;
  bottom: 5px;
  right: 5px;
  background: var(--teal);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  transition: transform 0.2s;
}

.avatar-edit-btn:hover {
  transform: scale(1.1);
}

.profile-title-info h1 {
  font-family: var(--serif);
  font-size: 36px;
  color: var(--navy);
  margin: 0;
}

.profile-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 32px;
}

@media (max-width: 900px) {
  .profile-grid {
    grid-template-columns: 1fr;
  }

  .profile-header {
    flex-direction: column;
    text-align: center;
  }
}

/* ─── MODAL ──────────────────────────────────────────── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000000;
  background: rgba(0, 0, 0, .6);
  backdrop-filter: blur(3px);
  align-items: center;
  justify-content: center;
}

.modal-overlay.open {
  display: flex;
}

.modal {
  background: var(--paper);
  border-radius: 6px;
  max-width: 720px;
  width: 95%;
  max-height: 88vh;
  overflow-y: auto;
  border: 1px solid var(--border);
  box-shadow: 0 24px 80px rgba(0, 0, 0, .3);
}

.modal-header {
  background: var(--navy);
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid var(--gold);
  border-radius: 5px 5px 0 0;
}

.modal-header h3 {
  font-family: var(--serif);
  font-size: 18px;
  color: #fff;
}

.modal-close {
  background: none;
  border: none;
  color: #7aadcc;
  font-size: 20px;
  cursor: pointer;
}

.modal-close:hover {
  color: #fff;
}

.modal-body {
  padding: 24px;
}

.modal-body p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 14px;
}

.modal-body h4 {
  font-family: var(--serif);
  font-size: 15px;
  color: var(--navy);
  margin-bottom: 8px;
}

.math-block {
  background: #0d1b2e;
  color: #8aafc8;
  font-family: var(--mono);
  font-size: 13px;
  padding: 16px;
  border-radius: 3px;
  margin: 12px 0;
  border-left: 3px solid var(--teal);
  overflow-x: auto;
}

/* ─── UPLOAD FORM ────────────────────────────────────── */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group.full {
  grid-column: 1/-1;
}

.form-group label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
}

.form-group input,
.form-group select,
.form-group textarea {
  font-family: var(--sans);
  font-size: 13px;
  padding: 9px 13px;
  border: 1px solid var(--border);
  background: var(--cream);
  border-radius: 3px;
  color: var(--text);
  transition: border-color .2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--sky);
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.form-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 20px;
}

.upload-zone {
  border: 2px dashed var(--border);
  border-radius: 4px;
  padding: 32px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  cursor: pointer;
  transition: border-color .2s;
  grid-column: 1/-1;
}

.upload-zone:hover {
  border-color: var(--sky);
  color: var(--blue);
}

/* ─── AUTH MODAL ─────────────────────────────────────── */
.auth-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.auth-tab {
  flex: 1;
  padding: 12px;
  text-align: center;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color .2s, border-color .2s;
}

.auth-tab.active {
  color: var(--blue);
  border-color: var(--blue);
}

/* ─── ROLE MATRIX TABLE ──────────────────────────────── */
.matrix-wrap {
  overflow-x: auto;
}

.matrix-table th,
.matrix-table td {
  text-align: center;
  padding: 10px 14px;
  font-size: 12px;
}

.matrix-table th:first-child,
.matrix-table td:first-child {
  text-align: left;
  padding-left: 16px;
}

.perm-full {
  color: var(--teal);
  font-weight: 600;
}

.perm-own {
  color: var(--gold);
  font-weight: 600;
}

.perm-none {
  color: #ccc;
}

/* ─── TOAST ──────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 3000;
  background: var(--navy);
  color: #fff;
  padding: 12px 20px;
  border-radius: 4px;
  font-size: 13px;
  border-left: 3px solid var(--teal);
  box-shadow: 0 8px 24px rgba(0, 0, 0, .2);
  display: none;
  animation: slideUp .3s ease;
}

/* ─── ADMIN UI OVERLAYS ──────────────────────────────── */
.admin-del-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 28px;
  height: 28px;
  background: rgba(239, 68, 68, 0.9);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: bold;
  z-index: 50;
  transition: transform 0.2s, background 0.2s;
}

.admin-del-btn:hover {
  background: #ef4444;
  transform: scale(1.1);
}

.admin-add-card {
  transition: all 0.3s ease;
  background: rgba(255, 255, 255, 0.4) !important;
}

.admin-add-card:hover {
  background: rgba(14, 124, 123, 0.1) !important;
  border-color: var(--teal) !important;
  transform: translateY(-5px);
}

@keyframes slideUp {
  from {
    transform: translateY(20px);
    opacity: 0;
  }

  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* ─── FOOTER ─────────────────────────────────────────── */
footer {
  background: transparent;
  backdrop-filter: blur(12px);
  border-top: none;
  padding: 48px 32px;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
  font-family: var(--mono);
  position: relative;
  z-index: 10;
}

footer strong {
  color: var(--navy);
}

/* ─── RESPONSIVE ─────────────────────────────────────── */
/* ─── HAMBURGER BUTTON ───────────────────────────────── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  margin-left: auto;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: transform .3s, opacity .3s;
}

.nav-hamburger.active span:nth-child(1),
.nav-hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-hamburger.active span:nth-child(2),
.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
}

.nav-hamburger.active span:nth-child(3),
.nav-hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile drawer */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: var(--navy);
  z-index: 2000;
  overflow-y: auto;
  padding: 100px 0 60px;
  flex-direction: column;
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  color: #e2e8f0;
  text-decoration: none;
  font-size: 19px;
  font-weight: 500;
  padding: 20px 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all .2s ease;
}

.mobile-menu a:hover,
.mobile-menu a.active {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  padding-left: 40px;
}

.mobile-menu .mobile-section-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold);
  padding: 20px 28px 8px;
  border-bottom: none;
  pointer-events: none;
}

.mobile-menu .mobile-sub {
  padding-left: 52px;
  font-size: 14px;
  color: #7aadcc;
  border-bottom-color: #122840;
}

.mobile-menu .mobile-auth {
  display: flex;
  gap: 12px;
  padding: 24px 28px;
  border-bottom: none;
  background: none;
}

.mobile-menu .mobile-auth .btn {
  flex: 1;
  justify-content: center;
  font-size: 14px;
  padding: 11px;
}

/* ─── RESPONSIVE ──────────────────────────────────────── */
@media (max-width: 900px) {

  /* Nav */
  .topbar {
    display: none;
  }
  }

  .nav-logo-title {
    font-size: 16px;
  }

  .nav-logo-sub {
    display: none;
  }

  /* Hero */
  .hero-split {
    flex-direction: column;
    padding: 40px 24px 0;
    gap: 32px;
  }

  .hero-left {
    max-width: 100%;
  }

  .hero-right {
    display: none;
  }

  .hero-title {
    font-size: clamp(30px, 7vw, 46px);
  }

  .hero-desc {
    font-size: 16px;
  }

  .hero-actions .btn {
    font-size: 14px !important;
    padding: 11px 22px !important;
  }

  .hero-stats {
    gap: 28px;
  }

  .stat-num {
    font-size: 28px;
  }

  /* Cards below hero */
  .home-cards-wrap {
    padding: 36px 20px 48px;
  }

  .home-cards {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 28px;
  }

  .home-card {
    padding: 18px;
  }

  .home-research-strip {
    padding: 16px 20px;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .home-partners {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  /* Section wraps */
  .section-wrap {
    padding: 40px 20px;
  }

  .admin-wrap {
    padding: 40px 20px;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .workshop-grid {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .exec-layout {
    grid-template-columns: 1fr;
  }

  .algo-layout {
    grid-template-columns: 1fr;
  }

  .filter-panel,
  .exec-panel {
    position: static;
  }

  .metric-row {
    grid-template-columns: 1fr 1fr;
  }

  /* Area pages */
  .area-hero {
    padding: 36px 20px 32px;
  }

  .area-body {
    padding: 36px 20px;
  }

  .area-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  /* Workshop */
  .workshop-body.open {
    max-height: 1400px;
    padding: 20px;
  }
}

@media (max-width: 520px) {
  .home-cards {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: clamp(26px, 8vw, 38px);
  }

  .metric-row {
    grid-template-columns: 1fr 1fr;
  }

  .team-grid {
    grid-template-columns: 1fr;
  }

  .algo-grid {
    grid-template-columns: 1fr;
  }

  .workshop-grid {
    gap: 12px;
  }

  /* ── Workshop Carousel ─────────────────────────── */
  .ws-carousel {
    position: relative;
    margin-bottom: 16px;
    border-radius: 6px;
    overflow: hidden;
    background: #000;
    aspect-ratio: 16/9;
  }

  .ws-carousel-track {
    display: flex;
    width: 100%;
    height: 100%;
    transition: transform .5s cubic-bezier(.4, 0, .2, 1);
  }

  .ws-carousel-slide {
    min-width: 100%;
    height: 100%;
    position: relative;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .ws-carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    position: relative;
    z-index: 0;
    pointer-events: none;
  }

  .ws-carousel-slide .slide-placeholder {
    width: 100%;
    height: 100%;
    background: #0d1b2e;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
  }

  .ws-slide-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, .65));
    color: #fff;
    font-size: 13px;
    padding: 24px 16px 10px;
  }

  .ws-carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, .5);
    border: 2px solid rgba(255, 255, 255, .3);
    color: #fff;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .2s, border-color .2s, transform .2s;
    z-index: 10;
    backdrop-filter: blur(4px);
    line-height: 1;
  }

  .ws-carousel-btn:hover {
    background: rgba(0, 0, 0, .85);
    border-color: var(--gold);
    color: var(--gold);
    transform: translateY(-50%) scale(1.1);
  }

  .ws-carousel-btn.prev {
    left: 14px;
  }

  .ws-carousel-btn.next {
    right: 14px;
  }

  .ws-carousel-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 10px 0 4px;
  }

  .ws-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: #1f3a54;
    cursor: pointer;
    transition: background .2s, transform .2s;
  }

  .ws-dot.active {
    background: var(--gold);
    transform: scale(1.3);
  }

  .ws-dot:hover {
    background: #8aafc8;
  }

  .pub-toolbar {
    flex-direction: column;
  }

  .pub-toolbar input,
  .pub-toolbar select {
    width: 100%;
  }

  .admin-banner {
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
  }

  .exec-layout {
    grid-template-columns: 1fr;
  }

  .partner-logos-row {
    flex-direction: column;
  }

  .hero-stats {
    gap: 20px;
  }

  .stat-num {
    font-size: 24px;
  }
}

/* ─── REDESIGNED AREA PAGES ──────────────────────────── */
#research {
  background: transparent !important;
}

.ra-view {
  background: transparent !important;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

#content {
  background: transparent !important;
  margin-top: 180px;
}

@media (max-width: 992px) {
  #content {
    margin-top: 100px;
  }
}

.area-hero {
  background: transparent;
  padding: 52px 80px 48px;
  position: relative;
  overflow: hidden;
}

.area-bg-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.15;
  z-index: -1;
  pointer-events: none;
}

.area-hero::before {
  display: none;
}

.area-hero-inner {
  display: flex;
  align-items: center;
  gap: 64px;
  max-width: 100%;
  margin: 0;
  position: relative;
  z-index: 1;
}

.area-hero-text {
  flex: 1;
}

.area-hero-visual {
  flex: 0 0 340px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.area-breadcrumb {
  font-family: var(--mono);
  font-size: 11px;
  color: #6a90b0;
  letter-spacing: 1px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.area-breadcrumb a {
  color: var(--blue);
  cursor: pointer;
  text-decoration: none;
}

.area-breadcrumb a:hover {
  color: var(--navy);
}

.area-hero h1 {
  font-family: var(--serif);
  font-size: clamp(36px, 3.5vw, 58px);
  font-weight: 300;
  color: var(--navy);
  line-height: 1.2;
  margin-bottom: 20px;
}

.area-hero h1 strong {
  font-weight: 600;
  color: var(--blue);
}

.area-hero-desc {
  font-size: 18px;
  color: var(--muted);
  max-width: 720px;
  line-height: 1.8;
}

.area-body {
  background: transparent;
}

.area-body-inner {
  max-width: 100%;
  margin: 0;
  padding: 52px 80px;
}

.area-grid {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 56px;
}

/* Content section styling — light themed */
.area-content-block {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 8px;
  padding: 32px 36px;
  margin-bottom: 20px;
  border: none;
  position: relative;
  overflow: hidden;
}

.area-content-block::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
}

.area-content-block.accent-teal::before {
  background: var(--teal);
}

.area-content-block.accent-blue::before {
  background: var(--blue);
}

.area-content-block.accent-gold::before {
  background: var(--gold);
}

/* ─── PUBLICATIONS REDESIGN ─────────────────────────── */
.pub-toolbar {
  display: flex;
  gap: 12px;
  background: white;
  padding: 16px 20px;
  border-radius: 8px;
  border: 1px solid var(--border);
  margin-bottom: 32px;
  align-items: center;
  flex-wrap: wrap;
}

.pub-toolbar input,
.pub-toolbar select {
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0 12px;
  font-size: 13px;
  color: var(--navy);
  outline: none;
  background: #fcfcfd;
}

.pub-toolbar input {
  flex: 2;
  min-width: 250px;
}

.pub-toolbar select {
  flex: 1;
  min-width: 140px;
}

.pub-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.pub-item {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px 28px;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.pub-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px -10px rgba(15, 23, 42, 0.08);
  border-color: var(--blue);
}

.pub-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--border);
  transition: background 0.2s;
}

.pub-item:hover::before {
  background: var(--blue);
}

.pub-title {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 12px;
  line-height: 1.4;
}

.pub-meta {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 20px;
  line-height: 1.6;
}

.pub-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: auto;
}

/* Citation Modal Redesign */
.cit-modal-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}

.cit-tab {
  padding: 10px 24px;
  border: none;
  background: none;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  color: var(--muted);
  cursor: pointer;
  position: relative;
  transition: all 0.2s;
  text-transform: uppercase;
}

.cit-tab.active {
  color: var(--blue);
}

.cit-tab.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--blue);
  border-radius: 3px 3px 0 0;
}

.cit-content-box {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.8;
  color: var(--navy);
  min-height: 160px;
  white-space: pre-wrap;
  word-break: break-all;
  position: relative;
  overflow-y: auto;
  max-height: 300px;
}

.area-content-block.accent-purple::before {
  background: #7b4ea0;
}

.area-content-block.accent-red::before {
  background: #c0392b;
}

.area-content-block.accent-green::before {
  background: #27ae60;
}

.area-content-block h2 {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 12px;
}

.area-content-block p {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.8;
}

/* Sidebar */
.area-sidebar-sticky {
  position: sticky;
  top: 84px;
}

.area-topics-card {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 16px;
  border: none;
}

.area-topics-card h4 {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 14px;
}

.area-topic-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 7px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  color: var(--text);
  line-height: 1.5;
}

.area-topic-item:last-child {
  border-bottom: none;
}

.area-topic-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
  flex-shrink: 0;
  margin-top: 6px;
}

.area-meta-card {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 8px;
  padding: 20px;
  border: none;
}

.area-meta-card h4 {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 12px;
}

.area-meta-row {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
}

.area-meta-row:last-child {
  border-bottom: none;
}

.area-meta-row strong {
  color: var(--navy);
}

/* Responsive */
@media (max-width: 900px) {
  .area-hero {
    padding: 36px 20px 32px;
  }

  .area-hero-inner {
    flex-direction: column;
    gap: 24px;
  }

  .area-hero-visual {
    display: none;
  }

  .area-body-inner {
    padding: 36px 20px;
  }

  .area-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .area-sidebar-sticky {
    position: static;
  }
}

/* Carousel */
.ws-carousel-wrap {
  position: relative;
  width: 100%;
  margin-bottom: 12px;
  border-radius: 12px;
  overflow: hidden;
  background: var(--paper);
  border: 1px solid var(--border);
  aspect-ratio: 16/9;
}

.ws-carousel-track {
  display: flex;
  width: 100%;
  height: 100%;
  transition: transform .4s ease;
}

.ws-carousel-slide {
  min-width: 100%;
  height: 100%;
  flex-shrink: 0;
}

.ws-carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.ws-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  padding: 10px 0 4px;
}

.ws-nav-btn {
  background: #ffffff;
  border: 1px solid var(--border);
  color: var(--navy);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .2s;
}

.ws-nav-btn:hover {
  background: var(--paper);
  border-color: var(--navy);
  color: var(--navy);
}

.ws-dots {
  display: flex;
  gap: 6px;
  align-items: center;
}

.ws-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--border);
  cursor: pointer;
  transition: all .2s;
  border: none;
}

.ws-dot.active {
  background: var(--gold);
}

/* ═══════════════════════════════════════════════════════
   ANIMATIONS & TRANSITIONS
   ═══════════════════════════════════════════════════════ */

/* ── Page section fade ─────────────────────────────────── */
.page-section {
  animation: none;
}

.page-section.active {
  animation: sectionFadeIn .35s ease forwards;
}

@keyframes sectionFadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Scroll reveal base ────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .55s ease, transform .55s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity .55s ease, transform .55s ease;
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity .55s ease, transform .55s ease;
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Stagger delays */
.reveal-d1 {
  transition-delay: .08s;
}

.reveal-d2 {
  transition-delay: .16s;
}

.reveal-d3 {
  transition-delay: .24s;
}

.reveal-d4 {
  transition-delay: .32s;
}

.reveal-d5 {
  transition-delay: .40s;
}

.reveal-d6 {
  transition-delay: .48s;
}

/* ── Hero entrance ─────────────────────────────────────── */
.hero-badge {
  animation: fadeDown .5s ease .1s both;
}

.hero-title {
  animation: fadeDown .6s ease .2s both;
}

.hero-desc {
  animation: fadeDown .6s ease .35s both;
}

.hero-actions {
  animation: fadeDown .6s ease .48s both;
}

.hero-stats {
  animation: fadeDown .6s ease .6s both;
}

.hero-right {
  animation: fadeIn .9s ease .3s both;
}

@keyframes fadeDown {
  from {
    opacity: 0;
    transform: translateY(-16px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

/* ── Home cards ────────────────────────────────────────── */
.home-card {
  transition: box-shadow .25s ease, transform .25s ease, border-color .25s ease;
}

/* ── Nav links ─────────────────────────────────────────── */
.nav-links a {
  transition: color .2s ease, border-color .2s ease;
}

/* ── Team cards ────────────────────────────────────────── */
.team-card {
  transition: box-shadow .25s ease, transform .25s ease;
}

/* ── Pub items ─────────────────────────────────────────── */
.pub-item {
  transition: border-left-color .2s ease, box-shadow .2s ease;
}

/* ── Algo cards ────────────────────────────────────────── */
.algo-card {
  transition: box-shadow .25s ease, transform .25s ease, border-top-color .25s ease;
}

/* ── Info cards ────────────────────────────────────────── */
.info-card {
  transition: box-shadow .25s ease;
}

.info-card:hover {
  box-shadow: 0 6px 24px rgba(0, 0, 0, .08);
}

/* ── Area content blocks ───────────────────────────────── */
.area-content-block {
  transition: box-shadow .25s ease;
}

.area-content-block:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, .12);
}

/* ── Stat numbers count-up hint ────────────────────────── */
.stat-num {
  transition: color .3s ease;
}

/* ── Workshop card ─────────────────────────────────────── */
.workshop-card {
  transition: box-shadow .25s ease;
}

.workshop-card:hover {
  box-shadow: 0 8px 32px rgba(0, 0, 0, .1);
}

.workshop-card-header {
  transition: background .2s ease;
}

/* ── Strip items ───────────────────────────────────────── */
.strip-item {
  transition: background .15s ease, transform .15s ease;
}

.strip-item:hover {
  transform: translateY(-2px);
}

/* ── Buttons ───────────────────────────────────────────── */
.btn {
  transition: background .2s ease, border-color .2s ease, color .2s ease,
    transform .15s ease, box-shadow .15s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, .15);
}

.btn:active {
  transform: translateY(0);
}

/* ── Research area pages ───────────────────────────────── */
.ra-view {
  animation: none;
}

/* ── Tag pills ─────────────────────────────────────────── */
.tag {
  transition: background .15s ease, color .15s ease;
}

/* ── Section tag line ──────────────────────────────────── */
.section-tag::before {
  transition: width .4s ease;
}


/* ═══════════════════════════════════════════════════════
   MOBILE FIXES
   ═══════════════════════════════════════════════════════ */
@media (max-width: 768px) {

  /* About grid → single column */
  .about-grid {
    grid-template-columns: 1fr !important;
  }

  /* Three-tier already fixed with auto-fill */

  /* Hero */
  .hero-split {
    flex-direction: column;
    padding: 32px 20px 0;
  }

  .hero-right {
    flex: unset;
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
  }

  .hero-stats {
    gap: 24px;
  }

  /* Section wrap padding */
  .section-wrap {
    padding: 32px 20px;
  }

  /* Research area body */
  .area-body-inner {
    padding: 28px 16px !important;
  }

  .area-grid {
    grid-template-columns: 1fr !important;
  }

  .area-hero-inner {
    flex-direction: column;
  }

  .area-hero-visual {
    display: none;
  }

  .area-hero {
    padding: 28px 16px 24px !important;
  }

  /* Publications toolbar */
  .pub-toolbar {
    flex-direction: column;
  }

  .pub-toolbar input,
  .pub-toolbar select {
    width: 100%;
  }

  /* Algo layout */
  .algo-layout {
    grid-template-columns: 1fr !important;
  }

  .filter-panel {
    display: none;
  }

  /* Exec layout */
  .exec-layout {
    grid-template-columns: 1fr !important;
  }

  /* Admin */
  .admin-banner {
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
  }

  .metric-row {
    grid-template-columns: 1fr 1fr;
  }

  .admin-wrap {
    padding: 20px 16px;
  }

  /* Tables — horizontal scroll */
  .admin-table-wrap {
    overflow-x: auto;
  }

  /* Workshop grid */
  .workshop-grid {
    grid-template-columns: 1fr !important;
  }

  /* Home cards strip */
  .home-cards-wrap {
    padding: 0 16px 40px;
  }

  .strip-items {
    gap: 6px;
  }

  /* Partner logos */
  .partner-logos-row {
    flex-direction: column;
    align-items: flex-start;
  }

  /* Footer */
  footer {
    padding: 24px 16px;
    font-size: 12px;
  }

  /* Modals */
  .modal {
    margin: 16px;
    max-width: calc(100vw - 32px) !important;
  }

  .modal-body {
    padding: 16px;
  }

  /* Form grid */
  .form-grid {
    grid-template-columns: 1fr !important;
  }

  /* Team grid */
  .team-grid {
    grid-template-columns: 1fr !important;
  }

  /* RA content-block padding */
  .area-content-block {
    padding: 20px 18px;
  }

  /* Home card grid */
  .home-cards {
    grid-template-columns: 1fr 1fr !important;
  }
}

@media (max-width: 480px) {
  .home-cards {
    grid-template-columns: 1fr !important;
  }

  .metric-row {
    grid-template-columns: 1fr 1fr;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
}


/* ── Individual research area pages: plain white theme ── */
#ra-chaos .area-hero,
#ra-ann .area-hero,
#ra-pinn .area-hero,
#ra-rns .area-hero,
#ra-he .area-hero,
#ra-fpga .area-hero {
  background: #fff !important;
  border-bottom: 3px solid var(--gold);
}

#ra-chaos .area-hero h1,
#ra-ann .area-hero h1,
#ra-pinn .area-hero h1,
#ra-rns .area-hero h1,
#ra-he .area-hero h1,
#ra-fpga .area-hero h1 {
  color: var(--navy);
}

#ra-chaos .area-hero-desc,
#ra-ann .area-hero-desc,
#ra-pinn .area-hero-desc,
#ra-rns .area-hero-desc,
#ra-he .area-hero-desc,
#ra-fpga .area-hero-desc {
  color: var(--muted);
}

#ra-chaos .area-breadcrumb,
#ra-ann .area-breadcrumb,
#ra-pinn .area-breadcrumb,
#ra-rns .area-breadcrumb,
#ra-he .area-breadcrumb,
#ra-fpga .area-breadcrumb {
  color: var(--muted);
}

#ra-chaos .area-body,
#ra-ann .area-body,
#ra-pinn .area-body,
#ra-rns .area-body,
#ra-he .area-body,
#ra-fpga .area-body {
  background: #fff;
}


@keyframes fadeInCard {
  from {
    opacity: 0;
    transform: translateY(16px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}


/* ── Area page quick-nav buttons ─────────────────────── */
.area-quicknav {
  background: #ffffff;
  border-radius: 8px;
  padding: 20px;
  margin-top: 16px;
  border: 1px solid var(--border);
  border-top: 3px solid var(--teal);
}

.area-quicknav::before {
  content: 'JUMP TO';
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--teal);
  margin-bottom: 12px;
}

.area-quicknav .btn {
  display: block;
  width: 100%;
  text-align: center;
  font-size: 13px;
  padding: 10px 14px;
  margin-bottom: 6px;
}

.area-quicknav .btn:last-child {
  margin-bottom: 0;
}

/* ── Auth nav user display ─────────────────────────────── */
#navAuth {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ── Button loading state ──────────────────────────────── */
.btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* ── Auth error messages ───────────────────────────────── */
#loginError,
#regError {
  font-size: 12px;
  font-family: var(--mono);
  color: #ef4444;
  min-height: 16px;
  transition: opacity .2s;
}

/* ── Projection / mode buttons ───────────────────────── */
.proj-btn {
  flex: 1;
  padding: 5px 8px;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  cursor: pointer;
  transition: all .15s;
  text-align: center;
}

.proj-btn.active {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}

.proj-btn:hover:not(.active) {
  border-color: var(--sky);
  color: var(--navy);
}

/* ── Exec layout improvements ────────────────────────── */
.exec-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 20px;
  align-items: start;
}

.exec-panel {
  position: sticky;
  top: 0;
  max-height: 75vh;
  overflow-y: auto;
  padding-right: 4px;
}

.plot-container {
  background: #0d1b2e;
  border-radius: 4px;
  overflow: hidden;
  line-height: 0;
}

.plot-container canvas {
  display: block;
  width: 100%;
  height: 320px;
}

/* ── Experiment sub-tabs ─────────────────────────────── */
.exp-tab {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 16px 4px;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 400;
  color: var(--muted);
  cursor: pointer;
  transition: all .2s;
  display: flex;
  align-items: center;
}

.exp-tab.active {
  color: var(--blue);
  border-bottom: 2px solid var(--blue);
}

.exp-tab:hover:not(.active) {
  color: var(--navy);
}

/* ── Encryption format tabs ──────────────────────────── */
.enc-fmt-tab {
  flex: 1;
  padding: 6px 8px;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 10px;
  cursor: pointer;
  transition: all .15s;
}

.enc-fmt-tab.active {
  background: rgba(15, 118, 110, 0.1);
  border-color: var(--teal);
  color: var(--teal);
}

/* ── Key derivation rows ─────────────────────────────── */
.enc-deriv-row {
  display: grid;
  grid-template-columns: 58px 1fr auto;
  gap: 6px;
  align-items: center;
  padding: 4px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  font-size: 10px;
}

.enc-deriv-row:last-child {
  border-bottom: none;
}

.enc-deriv-val {
  color: var(--gold);
  font-size: 10px;
  font-weight: 600;
  text-align: right;
  min-width: 100px;
  word-break: break-all;
}

/* ── Forum ───────────────────────────────────────────── */
.forum-domain-tabs {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 24px;
  justify-content: center;
}

.forum-dtab {
  padding: 10px 24px;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 25px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 13px;
  cursor: pointer;
  transition: all .2s;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.02);
}

.forum-dtab.active {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(41, 128, 232, 0.2);
}

.forum-dtab:hover:not(.active) {
  border-color: var(--blue);
  color: var(--blue);
  background: #f0f7ff;
}

.forum-posts-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(420px, 1fr));
  gap: 32px;
  justify-content: center;
}

.forum-post-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  padding: 24px;
  cursor: pointer;
  transition: all .2s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.forum-post-card:hover {
  transform: translateY(-4px);
  border-color: var(--blue);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.06);
}

.forum-post-title {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 5px;
  line-height: 1.4;
}

.forum-post-meta {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.forum-post-body-preview {
  font-size: 13px;
  color: var(--muted);
  margin: 6px 0 8px;
  line-height: 1.6;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.forum-domain-tag {
  font-family: var(--mono);
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 10px;
  background: rgba(29, 78, 216, 0.1);
  color: var(--blue);
  border: 1px solid rgba(29, 78, 216, 0.2);
}

.forum-reply-count {
  display: flex;
  align-items: center;
  gap: 4px;
}

.forum-reply-item {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 12px 14px;
  margin-bottom: 8px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text);
  white-space: pre-wrap;
}

.forum-reply-meta {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  margin-top: 6px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.forum-delete-btn {
  background: none;
  border: none;
  color: #ef4444;
  font-family: var(--mono);
  font-size: 10px;
  cursor: pointer;
  padding: 0;
}

.forum-delete-btn:hover {
  text-decoration: underline;
}

.forum-loading {
  text-align: center;
  padding: 48px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
}

.forum-empty {
  text-align: center;
  padding: 64px 32px;
  font-family: var(--mono);
  color: var(--muted);
}

.forum-empty .forum-empty-icon {
  font-size: 40px;
  margin-bottom: 12px;
}

.forum-pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
}

.forum-page-btn {
  padding: 6px 14px;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 3px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  cursor: pointer;
  transition: all .15s;
}

.forum-page-btn.active,
.forum-page-btn:hover {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
}

.forum-page-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

@media (max-width: 600px) {
  .forum-post-card {
    padding: 14px 16px;
  }

  .forum-post-meta {
    gap: 8px;
  }
}

.btn-discord {
  background: #5865F2;
  color: #fff !important;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 15px rgba(88, 101, 242, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(5px);
}

.btn-discord:hover {
  background: #4752C4;
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 25px rgba(88, 101, 242, 0.5);
}

.btn-discord svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.discord-footer-section {
  padding: 60px 20px;
  text-align: center;
  border-top: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.05);
}

.discord-footer-content {
  max-width: 600px;
  margin: 0 auto;
}

.discord-footer-title {
  font-family: var(--display);
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--navy);
}

.discord-footer-text {
  color: var(--muted);
  margin-bottom: 24px;
  line-height: 1.6;
}

/* ─── AI CHATBOT ─────────────────────────────────────── */
.chat-container {
  display: flex;
  flex-direction: column;
  height: 600px;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  position: relative;
}

.chat-header {
  background: var(--navy);
  color: #fff;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.chat-header .ai-status {
  width: 10px;
  height: 10px;
  background: var(--teal);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--teal);
}

.chat-messages {
  flex: 1;
  padding: 24px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.5), transparent);
}

.message {
  max-width: 80%;
  padding: 12px 18px;
  border-radius: 12px;
  font-size: 14.5px;
  line-height: 1.6;
  position: relative;
  animation: messageFadeIn 0.3s ease both;
}

@keyframes messageFadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.message-user {
  align-self: flex-end;
  background: var(--blue);
  color: #fff;
  border-bottom-right-radius: 2px;
}

.message-ai {
  align-self: flex-start;
  background: #fff;
  color: var(--navy);
  border: 1px solid var(--border);
  border-bottom-left-radius: 2px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.chat-input-area {
  padding: 20px;
  background: #fff;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 12px;
}

.chat-input {
  flex: 1;
  background: var(--cream);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  font-family: var(--sans);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}

.chat-input:focus {
  border-color: var(--blue);
}

.ai-typing {
  font-size: 12px;
  color: var(--muted);
  padding: 8px 24px;
  font-family: var(--mono);
}

.chat-messages::-webkit-scrollbar {
  width: 6px;
}

.chat-messages::-webkit-scrollbar-track {
  background: transparent;
}

.chat-messages::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 10px;
}

/* ─── MOBILE RESPONSIVENESS (COMPREHENSIVE) ───────────── */
@media (max-width: 1024px) {
  .hero-split {
    flex-direction: column;
    padding: 40px 20px;
    text-align: center;
  }

  .hero-left {
    max-width: 100%;
  }

  .hero-badge {
    margin: 0 auto 20px;
  }

  .hero-title {
    font-size: 32px;
    line-height: 1.25;
  }

  #team .section-wrap,
  #experiments .section-wrap,
  #about .section-wrap,
  .section-wrap {
    padding: 30px 16px !important;
  }

  .sb-grid {
    grid-template-columns: 1fr !important;
  }
}

#team .section-wrap,
#experiments .section-wrap,
#about .section-wrap,
.section-wrap {
  padding: 32px 20px !important;
  max-width: 100% !important;
  width: 100% !important;
  margin: 0 !important;
}

.sb-grid {
  grid-template-columns: 1fr !important;
}
}

@media (max-width: 768px) {

  .section-title,
  #about .section-title,
  #team .section-title {
    font-size: 32px;
  }

  .admin-stats-container {
    grid-template-columns: 1fr 1fr;
    gap: 12px !important;
  }

  .admin-full-wrap {
    padding: 20px 12px 60px !important;
  }

  .admin-header-main {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 16px !important;
    padding-bottom: 20px !important;
  }

  .admin-header-content {
    text-align: center !important;
  }

  .admin-header-content h1 {
    font-size: 32px !important;
  }

  .admin-section-header {
    padding: 16px 20px !important;
  }

  /* Admin Tables Scrollable */
  .admin-table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .premium-table {
    min-width: 600px;
  }

  /* Modal Scaling */
  .modal {
    width: 95% !important;
    margin: 10px auto;
    max-height: 90vh;
    overflow-y: auto;
  }

  .form-grid {
    grid-template-columns: 1fr !important;
  }

  /* Sandbox Specifics */
  #sb-editor {
    height: 300px !important;
    font-size: 12px !important;
  }

  #sb-console {
    height: 250px !important;
  }

  .sb-grid {
    gap: 16px !important;
  }
}

@media (max-width: 480px) {
  .admin-stats-container {
    grid-template-columns: 1fr;
    gap: 10px !important;
  }

  .admin-card-glass {
    padding: 16px !important;
  }

  .metric-num {
    font-size: 28px !important;
  }

  .btn-lg {
    width: 100%;
    padding: 12px;
  }

  .hero-h1 {
    font-size: 38px;
  }

  .hero-p {
    font-size: 16px;
  }
}