/* ==========================================================================
   IJCRS 2027 Modern Academic Conference Theme
   Color Scheme: University of Manitoba Navy (#00274c) & Academic Gold (#d97706)
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
  --primary-950: #001224;
  --primary-900: #001a35;
  --primary-800: #00274c; /* UManitoba Navy */
  --primary-700: #0a3866;
  --primary-600: #124c85;
  --primary-50:  #f0f6fc;
  
  --gold-600:    #b45309;
  --gold-500:    #d97706; /* Academic Gold */
  --gold-400:    #f59e0b;
  --gold-100:    #fef3c7;
  --gold-50:     #fffbeb;

  --accent:      #0284c7;
  --accent-blue: #0284c7;
  --success:     #059669;

  --text-dark:   #0f172a;
  --text-body:   #334155;
  --text-muted:  #64748b;
  --text-light:  #94a3b8;

  --bg-white:    #ffffff;
  --bg-slate:    #f8fafc;
  --bg-slate-100:#f1f5f9;
  
  --border-light:#e2e8f0;
  --border-subtle:#cbd5e1;
  
  --shadow-sm:   0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-card: 0 4px 12px -2px rgba(0, 0, 0, 0.06), 0 2px 6px -1px rgba(0, 0, 0, 0.04);
  --shadow-hover:0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
  --shadow-glow: 0 0 25px rgba(217, 119, 6, 0.2);

  --radius-sm:   6px;
  --radius-md:   12px;
  --radius-lg:   18px;
  --radius-pill: 9999px;

  --font-heading:'Outfit', -apple-system, sans-serif;
  --font-body:   'Plus Jakarta Sans', -apple-system, sans-serif;
  --max-w:       1360px;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-body);
  color: var(--text-body);
  background-color: var(--bg-white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  width: 100%;
  max-width: 100vw;
  overflow-x: clip;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 100vw;
  overflow-x: clip;
  position: relative;
}

a {
  color: var(--primary-700);
  text-decoration: none;
  transition: all 0.2s ease;
}

a:hover {
  color: var(--gold-500);
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.site-header .container,
.institutional-bar .container {
  max-width: 1400px;
  padding: 0 20px;
}

/* ==========================================================================
   TOP INSTITUTIONAL LOGO BAR
   ========================================================================== */
.institutional-bar {
  background: #ffffff;
  border-bottom: 1px solid var(--border-light);
  padding: 8px 0;
}

.institutional-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.inst-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.inst-logos {
  display: flex;
  align-items: center;
  gap: 20px;
}

.inst-logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.inst-logo-img {
  height: 38px;
  max-width: 170px;
  width: auto;
  object-fit: contain;
  transition: opacity 0.2s ease;
}

.inst-logo-img:hover {
  opacity: 0.85;
}

.inst-divider {
  width: 1px;
  height: 28px;
  background-color: var(--border-light);
}

.inst-right {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.84rem;
  color: var(--text-muted);
}

.inst-badge {
  background: var(--gold-50);
  color: var(--gold-600);
  border: 1px solid #fde68a;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ==========================================================================
   MAIN STICKY NAVBAR
   ========================================================================== */
.site-header {
  background: var(--primary-900);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.18);
  border-bottom: 3px solid var(--gold-500);
  width: 100%;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 68px;
  width: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-irss-img {
  height: 36px;
  width: 36px;
  object-fit: contain;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-main {
  font-family: var(--font-heading);
  font-size: 1.22rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: 0.4px;
  line-height: 1.1;
}

.brand-main span {
  color: var(--gold-400);
}

.brand-sub {
  font-size: 0.66rem;
  font-weight: 600;
  color: #94a3b8;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* Nav Menu */
.main-nav {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 1px;
  align-items: center;
}

.nav-item {
  position: relative;
}

.nav-link {
  color: #e2e8f0;
  font-size: 0.77rem;
  font-weight: 600;
  padding: 6px 6px;
  border-radius: var(--radius-sm);
  display: inline-block;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.12);
}

.nav-link.active {
  color: var(--gold-400);
  background: rgba(217, 119, 6, 0.15);
  font-weight: 700;
}

/* CTA in nav */
.btn-nav-cta {
  background: linear-gradient(135deg, var(--gold-500) 0%, var(--gold-600) 100%);
  color: #ffffff !important;
  font-size: 0.77rem;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  margin-left: 6px;
  box-shadow: 0 2px 8px rgba(217, 119, 6, 0.35);
  transition: all 0.2s ease;
  white-space: nowrap;
  flex-shrink: 0;
}

.btn-nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(217, 119, 6, 0.5);
  color: #ffffff;
}

.mobile-menu-toggle {
  display: none;
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.3);
  color: #ffffff;
  font-size: 1.5rem;
  line-height: 1;
  min-width: 44px;
  min-height: 44px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  -webkit-tap-highlight-color: rgba(217, 119, 6, 0.2);
  touch-action: manipulation;
  user-select: none;
  transition: all 0.2s ease;
}

.mobile-menu-toggle:hover,
.mobile-menu-toggle:focus {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--gold-400);
  color: var(--gold-400);
  outline: none;
}

/* Table Responsive Container */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
  background: radial-gradient(circle at 85% 20%, rgba(217, 119, 6, 0.15) 0%, transparent 50%),
              linear-gradient(135deg, var(--primary-950) 0%, var(--primary-900) 50%, var(--primary-800) 100%);
  color: #ffffff;
  padding: 60px 0 55px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 36px;
  align-items: center;
}

.hero-pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(217, 119, 6, 0.2);
  border: 1px solid rgba(245, 158, 11, 0.5);
  color: var(--gold-100);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 18px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.hero-pill-badge::before {
  content: "";
  width: 7px;
  height: 7px;
  background: var(--gold-400);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--gold-400);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 2.7rem;
  font-weight: 800;
  line-height: 1.15;
  color: #ffffff;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.hero-title span {
  background: linear-gradient(135deg, #ffffff 0%, var(--gold-100) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: #cbd5e1;
  margin-bottom: 24px;
  line-height: 1.6;
}

/* Springer Badge in Hero */
.hero-springer-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  padding: 8px 16px;
  border-radius: var(--radius-md);
  margin-bottom: 26px;
}

.hero-springer-badge img {
  height: 28px;
  object-fit: contain;
}

.hero-springer-badge span {
  font-size: 0.88rem;
  color: #e2e8f0;
  font-weight: 600;
}

.hero-springer-badge strong {
  color: var(--gold-100);
}

.hero-meta-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 28px;
}

.hero-meta-item {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
  padding: 10px 14px;
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
}

.hero-meta-item .meta-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--gold-400);
  font-weight: 700;
  margin-bottom: 2px;
}

.hero-meta-item .meta-val {
  font-size: 0.92rem;
  font-weight: 700;
  color: #ffffff;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  font-size: 0.92rem;
  font-weight: 700;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all 0.25s ease;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gold-500) 0%, var(--gold-600) 100%);
  color: #ffffff;
  border: 2px solid var(--gold-500);
  box-shadow: 0 4px 14px rgba(217, 119, 6, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--gold-400) 0%, var(--gold-500) 100%);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(217, 119, 6, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: #ffffff;
  color: var(--primary-900);
  transform: translateY(-2px);
}

/* Hero Right: Showcase Card */
.hero-showcase {
  background: #ffffff;
  color: var(--text-dark);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  position: relative;
  overflow: hidden;
  border: 2px solid rgba(255, 255, 255, 0.2);
}

.showcase-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-light);
}

.showcase-title {
  font-size: 0.88rem;
  font-weight: 800;
  color: var(--primary-800);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.showcase-badge {
  background: #ecfdf5;
  color: #047857;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-pill);
}

.showcase-map-wrap {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #ffffff;
  border: 1px solid var(--border-light);
  margin-bottom: 14px;
}

.showcase-map-img {
  width: 100%;
  height: auto;
  aspect-ratio: 1280 / 1107;
  object-fit: contain;
  display: block;
}

.map-location-tag {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(0, 39, 76, 0.94);
  backdrop-filter: blur(4px);
  color: #ffffff;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.76rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
  border: 1px solid rgba(255, 255, 255, 0.25);
  z-index: 2;
}

.map-pin-pulse {
  position: absolute;
  left: 42.0%;
  top: 77.8%;
  transform: translate(-50%, -50%);
  width: 12px;
  height: 12px;
  background: #dc2626;
  border: 2px solid #ffffff;
  border-radius: 50%;
  box-shadow: 0 0 0 rgba(220, 38, 38, 0.6);
  animation: mapPulse 2s infinite;
  pointer-events: none;
  z-index: 1;
}

@keyframes mapPulse {
  0% {
    box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.75);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(220, 38, 38, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(220, 38, 38, 0);
  }
}

.map-source-note {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: -6px;
  margin-bottom: 12px;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 4px;
}

.map-source-note a {
  color: var(--primary-700);
  text-decoration: underline;
}

.map-source-note a:hover {
  color: var(--gold-600);
}

.showcase-footer-logos {
  display: flex;
  align-items: center;
  justify-content: space-around;
  padding-top: 12px;
  border-top: 1px solid var(--border-light);
  gap: 10px;
}

.showcase-footer-logos img {
  height: 26px;
  max-width: 80px;
  object-fit: contain;
  filter: grayscale(15%);
  transition: all 0.2s ease;
}

.showcase-footer-logos img:hover {
  filter: grayscale(0%);
  transform: scale(1.08);
}

/* ==========================================================================
   ANNOUNCEMENT TICKER STRIP
   ========================================================================== */
.ticker-strip {
  background: var(--bg-slate-100);
  border-bottom: 1px solid var(--border-light);
  padding: 12px 0;
  font-size: 0.9rem;
}

.ticker-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.ticker-pill {
  background: var(--primary-800);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 3px 9px;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  margin-right: 8px;
}

/* ==========================================================================
   PAGE BANNER (FOR INNER PAGES)
   ========================================================================== */
.page-banner {
  background: linear-gradient(135deg, var(--primary-950) 0%, var(--primary-800) 100%);
  color: #ffffff;
  padding: 42px 0 38px;
  border-bottom: 3px solid var(--gold-500);
  margin-bottom: 40px;
}

.breadcrumb {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 10px;
}

.breadcrumb a {
  color: #e2e8f0;
}

.breadcrumb a:hover {
  color: var(--gold-400);
}

.page-banner-title {
  font-family: var(--font-heading);
  font-size: 2.3rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 8px;
}

.page-banner-desc {
  font-size: 1.02rem;
  color: #cbd5e1;
  max-width: 800px;
}

/* ==========================================================================
   SECTIONS & TYPOGRAPHY
   ========================================================================== */
main {
  flex: 1;
}

.section {
  padding: 55px 0;
}

.section-alt {
  background-color: var(--bg-slate);
}

.section-header {
  margin-bottom: 34px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary-800);
  position: relative;
  display: inline-block;
  padding-bottom: 10px;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 4px;
  background: var(--gold-500);
  border-radius: 2px;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1rem;
  margin-top: 8px;
}

/* Grids */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

/* Cards */
.card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 26px;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.card-highlight {
  border-top: 4px solid var(--gold-500);
}

.card-navy {
  border-top: 4px solid var(--primary-800);
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-800);
  margin-bottom: 12px;
}

/* SPRINGER PROCEEDINGS BOX */
.springer-box {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 24px;
  margin: 32px 0 0;
  box-shadow: var(--shadow-card);
  border-left: 5px solid #dc2626;
}

.springer-box-img {
  height: 55px;
  max-width: 140px;
  object-fit: contain;
}

.springer-box-text {
  flex: 1;
}

.springer-box-title {
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--primary-800);
  margin-bottom: 4px;
}

.springer-box-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
}

/* SPONSORS & HOSTS SHOWCASE */
.sponsors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.sponsor-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 26px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  box-shadow: var(--shadow-card);
  transition: all 0.2s ease;
}

.sponsor-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border-subtle);
}

.sponsor-logo-holder {
  height: 65px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  width: 100%;
}

.sponsor-logo-holder img {
  max-height: 55px;
  max-width: 180px;
  object-fit: contain;
}

.sponsor-type {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--gold-600);
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.sponsor-label {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--primary-800);
}

/* TIMELINE & IMPORTANT DATES */
.timeline-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.timeline-item {
  display: flex;
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease;
}

.timeline-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.timeline-date {
  background: var(--primary-800);
  color: #ffffff;
  padding: 16px 22px;
  min-width: 160px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.timeline-date.featured {
  background: linear-gradient(135deg, var(--gold-500) 0%, var(--gold-600) 100%);
}

.timeline-date .day {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: #ffffff;
}

.timeline-date .year {
  font-size: 0.8rem;
  color: #e2e8f0;
  font-weight: 600;
}

.timeline-content {
  padding: 16px 22px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex: 1;
}

.timeline-title {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--primary-800);
  margin-bottom: 4px;
}

.timeline-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* TOPIC BADGES */
.topic-group {
  margin-bottom: 32px;
}

.topic-group-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--primary-800);
  margin-bottom: 14px;
  font-weight: 700;
  border-bottom: 2px solid var(--border-light);
  padding-bottom: 6px;
}

.topic-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
  list-style: none;
}

.topic-item {
  background: #ffffff;
  border: 1px solid var(--border-light);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}

.topic-item::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--gold-500);
  border-radius: 50%;
  flex-shrink: 0;
}

.topic-item:hover {
  border-color: var(--gold-400);
  background: var(--gold-50);
  transform: translateX(3px);
}

/* TABLES */
.custom-table {
  width: 100%;
  border-collapse: collapse;
  background: #ffffff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.custom-table th {
  background: var(--primary-800);
  color: #ffffff;
  text-align: left;
  padding: 15px 18px;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.custom-table td {
  padding: 15px 18px;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.92rem;
}

.custom-table tr:hover {
  background-color: var(--bg-slate);
}

/* COMMITTEES */
.committee-category {
  margin-bottom: 38px;
}

.committee-category-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  color: var(--primary-800);
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--border-light);
}

.committee-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

.committee-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
}

.committee-card .name {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--primary-800);
}

.committee-card .institution {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.committee-card .role {
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--gold-600);
  margin-top: 8px;
}

/* CALLOUTS */
.callout-box {
  background: var(--primary-50);
  border-left: 4px solid var(--primary-700);
  padding: 18px 22px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 24px 0;
  font-size: 0.95rem;
}

.callout-warning {
  background: var(--gold-50);
  border-left-color: var(--gold-500);
}

/* ==========================================================================
   SPEAKERS SECTION & CARDS
   ========================================================================== */
.speaker-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 28px;
  margin-top: 20px;
}

.speaker-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.speaker-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--gold-400);
}

.speaker-header-banner {
  height: 6px;
  background: linear-gradient(90deg, var(--primary-800), var(--gold-500));
}

.speaker-inner {
  padding: 24px;
  display: flex;
  gap: 22px;
  align-items: flex-start;
}

@media (max-width: 540px) {
  .speaker-inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

.speaker-photo-wrap {
  width: 140px;
  height: 175px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 2px solid var(--border-light);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
  background: var(--bg-slate);
}

.speaker-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}

.speaker-info {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.speaker-badge-wrap {
  margin-bottom: 8px;
}

.speaker-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: var(--gold-100);
  color: var(--gold-700);
  padding: 4px 10px;
  border-radius: 9999px;
  border: 1px solid var(--gold-200);
}

.speaker-name {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary-800);
  margin-bottom: 4px;
}

.speaker-institution {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-body);
  margin-bottom: 2px;
}

.speaker-country {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 14px;
}

@media (max-width: 540px) {
  .speaker-country {
    justify-content: center;
  }
}

.speaker-status-box {
  background: var(--bg-slate);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.86rem;
  border: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.speaker-status-item {
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

@media (max-width: 540px) {
  .speaker-status-item {
    flex-direction: column;
    gap: 2px;
  }
}

.status-label {
  font-weight: 700;
  color: var(--primary-800);
}

.status-val {
  color: var(--text-muted);
  font-style: italic;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  background: var(--primary-950);
  color: #cbd5e1;
  padding: 55px 0 28px;
  margin-top: auto;
  border-top: 4px solid var(--gold-500);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 36px;
  margin-bottom: 40px;
}

.footer-col-title {
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

.footer-text {
  font-size: 0.88rem;
  line-height: 1.65;
  margin-bottom: 14px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: #cbd5e1;
  font-size: 0.88rem;
  transition: all 0.2s ease;
}

.footer-links a:hover {
  color: var(--gold-400);
  padding-left: 4px;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.82rem;
  color: #94a3b8;
}

.footer-bottom a {
  color: #e2e8f0;
}

/* ==========================================================================
   VIDEO EMBED CARD (CINEMATIC)
   ========================================================================== */
.video-showcase-section {
  margin-top: 55px;
  margin-bottom: 20px;
}

.video-cinema-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 12px 35px -5px rgba(0, 39, 76, 0.12), 0 4px 10px -2px rgba(0, 0, 0, 0.05);
  max-width: 1040px;
  margin: 0 auto;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.video-cinema-card:hover {
  box-shadow: 0 20px 45px -8px rgba(0, 39, 76, 0.18), 0 8px 16px -4px rgba(0, 0, 0, 0.08);
}

.video-cinema-wrap {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 Widescreen */
  height: 0;
  background: #000000;
}

.video-cinema-wrap iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-cinema-content {
  padding: 30px 34px 34px;
  background: #ffffff;
}

.video-meta-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border-light);
  margin-bottom: 20px;
}

.video-title-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.video-headline {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary-800);
  margin: 0;
}

.video-tag {
  background: var(--gold-100);
  color: var(--gold-600);
  font-size: 0.76rem;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.video-lead-text {
  font-size: 1.02rem;
  color: var(--text-body);
  line-height: 1.65;
  margin-bottom: 24px;
}

.city-highlights-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.city-highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--bg-slate);
  padding: 16px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  transition: all 0.2s ease;
}

.city-highlight-item:hover {
  background: #ffffff;
  border-color: var(--gold-400);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.highlight-icon {
  font-size: 1.5rem;
  line-height: 1;
  flex-shrink: 0;
  padding-top: 2px;
}

.highlight-title {
  font-family: var(--font-heading);
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--primary-800);
  margin-bottom: 4px;
}

.highlight-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0;
}

/* Fallback support for older container class */
.video-container-card {
  max-width: 1040px;
  margin: 0 auto;
}
.video-responsive-wrap {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  height: 0;
}
.video-responsive-wrap iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */

/* 1. Laptops & Compact Desktops (1141px - 1280px) */
@media (max-width: 1280px) {
  .site-header .container,
  .institutional-bar .container {
    padding: 0 10px;
  }
  .brand-sub {
    display: none;
  }
  .brand {
    gap: 6px;
  }
  .brand-irss-img {
    height: 32px;
    width: 32px;
  }
  .brand-main {
    font-size: 1.15rem;
  }
  .nav-links {
    gap: 0;
  }
  .nav-link {
    padding: 5px 4.5px;
    font-size: 0.72rem;
  }
  .btn-nav-cta {
    padding: 5px 9px;
    font-size: 0.72rem;
    margin-left: 4px;
  }
}

/* 2. Tablets, 1024px Screens & Mobile Viewports (<= 1140px) */
@media (max-width: 1140px) {
  .institutional-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .mobile-menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    width: 100%;
    background: var(--primary-900);
    flex-direction: column;
    padding: 16px 20px 24px;
    border-bottom: 3px solid var(--gold-500);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.6);
    z-index: 99999;
    max-height: calc(100vh - 70px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .main-nav.show {
    display: flex !important;
  }
  .nav-links {
    flex-direction: column;
    width: 100%;
    gap: 4px;
  }
  .nav-item {
    width: 100%;
  }
  .nav-link {
    display: block;
    width: 100%;
    padding: 12px 16px;
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
    -webkit-tap-highlight-color: rgba(217, 119, 6, 0.2);
    touch-action: manipulation;
  }
  .nav-link:hover,
  .nav-link:focus,
  .nav-link.active {
    background: rgba(255, 255, 255, 0.08);
  }
  .btn-nav-cta {
    margin-left: 0;
    margin-top: 14px;
    width: 100%;
    text-align: center;
    padding: 12px 16px;
    font-size: 0.95rem;
    display: block;
    -webkit-tap-highlight-color: rgba(217, 119, 6, 0.2);
    touch-action: manipulation;
  }
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-title {
    font-size: 2.3rem;
  }
  .hero-meta-cards {
    grid-template-columns: 1fr;
  }
  .grid-4, .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 4. Small Tablets & Phones (<= 640px) */
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .springer-box {
    flex-direction: column;
    text-align: center;
  }
  .timeline-item {
    flex-direction: column;
  }
  .timeline-date {
    min-width: unset;
    padding: 12px;
  }
}