:root {
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --bg: #ffffff;
  --surface: #f9fafb;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e5e7eb;
  --primary: #0b63d6;
  --primary-dark: #0847a0;
  --gold: #ca8a04;
  --navy-start: #002147;
  --navy-end: #013a63;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --header-height: 64px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

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

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  color: var(--primary-dark);
}

p {
  margin: 0 0 1rem;
}

ul,
ol {
  margin: 0;
  padding-left: 1.25rem;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0 0 0.8rem;
  line-height: 1.25;
}

main {
  padding-top: var(--header-height);
}

section[id],
article[id] {
  scroll-margin-top: calc(var(--header-height) + 18px);
}

#header-spacer {
  display: none;
}

.container {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.container-narrow {
  width: min(980px, calc(100% - 2rem));
}

.section {
  padding: 4.5rem 0;
}

.section-alt,
main > .section:nth-of-type(even) {
  background: var(--surface);
}

.section-header {
  margin-bottom: 2.2rem;
}

.section-header.center {
  text-align: center;
}

.section-tag {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.875rem, 3vw, 2.25rem);
  font-weight: 700;
  color: #111827;
}

.section-title em {
  font-style: normal;
  color: var(--primary);
}

.section-desc {
  color: var(--muted);
  max-width: 800px;
  margin: 0.75rem auto 0;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  background: #ffffff;
  border-bottom: 1px solid var(--border);
}

.site-header.scrolled {
  box-shadow: 0 3px 14px rgba(15, 23, 42, 0.08);
}

.header-bar {
  width: min(1140px, calc(100% - 2rem));
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: clamp(0.65rem, 1.5vw, 1.25rem);
  min-height: 68px;
  padding: 0.5rem 0;
  position: relative;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: clamp(0.55rem, 1.2vw, 0.9rem);
  flex-shrink: 0;
  min-width: 0;
}

.header-logos {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  flex-shrink: 0;
  text-decoration: none;
  line-height: 0;
}

.header-logo {
  display: block;
  width: auto;
  height: 44px;
  object-fit: contain;
}

.header-logo--imaps {
  height: 48px;
  width: 48px;
  border-radius: 50%;
}

.header-logo--inemi {
  height: 52px;
}

.header-title {
  font-family: var(--font-serif, "Cormorant Garamond", Georgia, serif);
  font-size: clamp(1.2rem, 2.4vw, 1.5rem);
  font-weight: 700;
  color: var(--navy-start, #001a33);
  letter-spacing: 0.06em;
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
  line-height: 1;
}

.header-title:hover {
  color: var(--primary);
}

.nav-row {
  flex: 1;
  min-width: 0;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.3rem;
  overflow-x: auto;
  padding: 0;
  scrollbar-width: thin;
  border: none;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  color: #334155;
  font-size: 0.92rem;
  font-weight: 500;
  border-radius: 999px;
  padding: 0.42rem 0.76rem;
  white-space: nowrap;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.nav-link:hover {
  color: var(--primary);
  background: #eff6ff;
}

.nav-link.active {
  color: var(--primary);
  background: #dbeafe;
}

.nav-toggle {
  display: none;
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: #374151;
  margin: 5px auto;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

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

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

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

.hero-banner {
  background: linear-gradient(130deg, var(--navy-start), var(--navy-end));
  color: #ffffff;
  text-align: center;
  padding: 3.6rem 1rem 3.2rem;
}

.hero-banner__title {
  font-size: clamp(1.75rem, 3.2vw, 2.75rem);
  font-weight: 700;
  max-width: 900px;
  margin: 0 auto 0.85rem;
}

.hero-banner__subtitle {
  margin-bottom: 0.7rem;
  font-size: 1.06rem;
}

.hero-banner__tagline {
  color: #dbeafe;
  margin: 0 auto;
  max-width: 860px;
}

.hero-carousel {
  padding: 2rem 0 1.1rem;
}

.carousel {
  position: relative;
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: #ffffff;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.carousel-track {
  display: flex;
}

.carousel-slide {
  width: 100%;
}

.carousel-slide img {
  width: 100%;
  object-fit: cover;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: #111827;
  font-size: 1.2rem;
  cursor: pointer;
}

.carousel-btn--prev {
  left: 1rem;
}

.carousel-btn--next {
  right: 1rem;
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.9rem;
}

.carousel-dots button {
  width: 8px;
  height: 8px;
  border: 0;
  border-radius: 999px;
  background: #cbd5e1;
}

.home-details {
  padding: 1.5rem 0 0.6rem;
}

.content-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 1.2rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  border: 1px solid #dbeafe;
  background: #eff6ff;
  color: #1e3a8a;
  padding: 0.36rem 0.72rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
}

.badge-gold {
  border-color: #fcd34d;
  background: #fffbeb;
  color: #92400e;
}

.hero-institution-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1rem;
  overflow: visible;
}

.hero-university {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem;
  align-items: center;
}

.hero-logo-frame {
  width: 108px;
  height: 108px;
  min-width: 108px;
  min-height: 108px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  box-sizing: border-box;
  overflow: visible;
}

/* IITM seal is edge-to-edge in the file — scale down so the full circle shows */
.hero-logo-frame--iitm {
  padding: 0.65rem;
}

.hero-institution-logo {
  display: block;
  flex-shrink: 0;
  width: 84px;
  height: 84px;
  object-fit: contain;
  object-position: center;
}

.hero-institution-logo--iitm {
  width: 76px;
  height: 76px;
}

.hero-uni-name {
  margin: 0 0 0.2rem;
  font-size: 1.08rem;
  color: #111827;
}

.hero-uni-location,
.hero-partner-deemed,
.hero-partner-accred,
.hero-partner-location {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.hero-divider {
  margin: 0.95rem 0;
}

.hero-divider span {
  display: block;
  border-top: 1px solid var(--border);
}

.hero-organizer {
  margin-bottom: 0.7rem;
  color: #374151;
  font-weight: 600;
}

.hero-partner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
}

.hero-partner-name {
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.hero-meta {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.hero-meta-item {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.8rem;
  display: flex;
  gap: 0.62rem;
  align-items: center;
}

.hero-meta-item svg {
  width: 20px;
  height: 20px;
  color: #2563eb;
  flex: 0 0 auto;
}

.hero-meta-item strong {
  display: block;
  margin-bottom: 0.12rem;
}

.hero-meta-item span {
  color: var(--muted);
  font-size: 0.88rem;
}

.hero-actions {
  margin-top: 1.1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.countdown {
  margin-top: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.countdown-item {
  min-width: 72px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  text-align: center;
  padding: 0.55rem 0.5rem;
}

.countdown-item span {
  display: block;
  font-size: 1.25rem;
  font-weight: 700;
  color: #0f172a;
}

.countdown-item label {
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.countdown-sep {
  color: #475569;
  font-weight: 700;
}

.dates-strip {
  padding: 1.6rem 0 0.8rem;
}

.dates-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
}

.date-card {
  border: 1px solid var(--border);
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 0.9rem;
}

.date-label {
  display: block;
  color: var(--muted);
  font-size: 0.86rem;
  margin-bottom: 0.3rem;
}

.date-value {
  display: block;
  color: #111827;
  font-size: 1rem;
  font-weight: 700;
}

.date-card.highlight {
  border-color: #bfdbfe;
  background: #eff6ff;
}

.poster-section {
  padding: clamp(0.85rem, 2vw, 1.35rem) 0;
}

.poster-container {
  width: min(1120px, calc(100vw - 1.5rem));
  margin: 0 auto;
}

.pdf-viewer {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #ffffff;
  box-shadow: var(--shadow-md);
}

.pdf-viewer__toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1rem;
  padding: 0.75rem 1rem;
  background: linear-gradient(180deg, #ffffff 0%, var(--surface, #f3f1ec) 100%);
  border-bottom: 1px solid var(--border);
}

.pdf-viewer__title {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.45rem 0.75rem;
}

.pdf-viewer__label {
  font-family: var(--font-serif, Georgia, serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--navy-start, #001a33);
}

.pdf-viewer__meta {
  font-size: 0.8rem;
  font-weight: 600;
  color: #64748b;
  letter-spacing: 0.02em;
}

.pdf-viewer__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.pdf-viewer__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--border-strong, var(--border));
  border-radius: var(--radius-sm);
  background: #ffffff;
  color: var(--navy-start, #001a33);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.pdf-viewer__btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-soft, #e8f1fa);
}

.pdf-viewer__btn--primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
}

.pdf-viewer__btn--primary:hover {
  background: var(--primary-dark, #063566);
  border-color: var(--primary-dark, #063566);
  color: #ffffff;
}

.pdf-viewer__stage {
  position: relative;
  background: #1e293b;
}

.pdf-viewer__frame {
  display: block;
  width: 100%;
  height: min(78vh, 820px);
  border: 0;
  background: #1e293b;
}

.pdf-viewer__fallback {
  display: none;
  margin: 0;
  padding: 1.5rem 1.25rem;
  text-align: center;
  color: #e2e8f0;
  font-size: 0.95rem;
  line-height: 1.6;
}

.pdf-viewer__fallback a {
  color: #93c5fd;
  font-weight: 600;
}

@supports not (display: flex) {
  .pdf-viewer__fallback {
    display: block;
  }
}

.about-grid,
.cfp-wrapper,
.contact-wrapper,
.venue-grid,
.registration-grid {
  display: grid;
  gap: 1rem;
}

.about-grid {
  grid-template-columns: 1.2fr 1fr;
}

.lead {
  font-size: 1.08rem;
  color: #111827;
}

.about-content p {
  text-align: justify;
  text-justify: inter-word;
  hyphens: auto;
}

.stats-row {
  margin-top: 1.25rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}

.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  text-align: center;
  padding: 0.7rem 0.4rem;
}

.stat-num {
  display: block;
  font-size: 1.16rem;
  font-weight: 700;
  color: #0f172a;
}

.stat-label {
  color: var(--muted);
  font-size: 0.84rem;
}

.about-cards {
  display: grid;
  gap: 0.8rem;
}

.info-card,
.leader-card,
.track-card,
.chair-card,
.workshop-card,
.highlight-item,
.tour-card,
.reg-table-wrapper,
.reg-includes,
.contact-form,
.advisory-col {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: #ffffff;
  box-shadow: var(--shadow-sm);
}

.info-card {
  padding: 1rem;
}

.info-card-icon {
  font-size: 1.3rem;
  margin-bottom: 0.3rem;
}

.take-home {
  margin: 0;
  color: #374151;
  font-weight: 500;
}

.leadership-highlights {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.leadership-highlight {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  padding: 0.9rem;
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
}

.leadership-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.leadership-grid--single {
  grid-template-columns: minmax(0, 560px);
  justify-content: center;
  margin: 0 auto;
}

.leadership--iitm .leader-card--featured {
  border-color: #93c5fd;
  box-shadow: var(--shadow-md);
}

.leader-card {
  overflow: hidden;
}

.leader-photo-wrap {
  position: relative;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, #f8fafc 0%, #eef2f7 100%);
  padding: 1rem 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 300px;
  min-height: 300px;
}

.leader-photo {
  display: block;
  width: 200px;
  height: 260px;
  object-fit: contain;
  object-position: center bottom;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.leader-rank {
  position: absolute;
  right: 0.65rem;
  bottom: 0.65rem;
  background: rgba(255, 255, 255, 0.9);
  color: #0f172a;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 700;
  padding: 0.2rem 0.58rem;
}

.leader-body {
  padding: 1rem;
}

.leader-role {
  display: inline-flex;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 0.4rem;
}

.leader-message {
  color: #4b5563;
  text-align: justify;
  text-justify: inter-word;
  hyphens: auto;
}

.leader-points {
  margin-top: 0.7rem;
  color: #374151;
}

.leader-points li {
  text-align: justify;
  text-justify: inter-word;
  hyphens: auto;
}

.leadership-note {
  margin-top: 1rem;
  color: var(--muted);
  text-align: center;
}

.tracks-catalog {
  display: grid;
  gap: 0.95rem;
}

.track-card__head {
  padding: 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.track-card__badge {
  font-size: 0.77rem;
  font-weight: 700;
  color: #1d4ed8;
  text-transform: uppercase;
}

.track-card__title {
  margin: 0.35rem 0 0;
  font-size: 1.14rem;
}

.track-card__body {
  padding: 1rem;
}

.track-card__themes-label {
  margin-bottom: 0.45rem;
  font-size: 0.96rem;
}

.track-card__themes li + li {
  margin-top: 0.38rem;
}

.track-card.is-highlight {
  border-color: #93c5fd;
  box-shadow: 0 0 0 2px #dbeafe;
}

.tracks-cta {
  margin-top: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.85rem;
}

.tracks-cta p {
  margin: 0;
  font-weight: 600;
}

.cfp-wrapper {
  grid-template-columns: 1.15fr 0.85fr;
}

.cfp-content,
.cfp-publishers {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: #ffffff;
  padding: 1rem;
}

.cfp-guidelines {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
  display: grid;
  gap: 0.55rem;
}

.cfp-guidelines li {
  display: flex;
  gap: 0.65rem;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  padding: 0.65rem;
}

.cfp-guidelines svg {
  width: 18px;
  height: 18px;
  color: #1d4ed8;
  flex: 0 0 auto;
}

.cfp-guidelines strong {
  display: block;
}

.cfp-guidelines span {
  color: var(--muted);
  font-size: 0.88rem;
}

.cfp-note {
  color: var(--muted);
}

.cmt-acknowledgment {
  margin-top: 1.75rem;
  padding: 1.15rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface, #f3f1ec);
}

.cmt-acknowledgment__heading {
  margin: 0 0 0.55rem;
  font-family: var(--font-serif, Georgia, serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy-start, #001a33);
}

.cmt-acknowledgment p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.65;
  color: #334155;
}

.cmt-acknowledgment__link {
  margin-top: 0.75rem !important;
  font-size: 0.88rem !important;
}

.cmt-acknowledgment__link a {
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
}

.cmt-acknowledgment__link a:hover {
  text-decoration: underline;
}

.publisher-list {
  display: grid;
  gap: 0.55rem;
  margin-bottom: 1rem;
}

.publisher-item {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.62rem 0.7rem;
  background: var(--surface);
}

.publisher-status {
  font-size: 0.82rem;
  color: var(--muted);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tags span,
.events-tags span,
.timeline-content .tracks span {
  border: 1px solid #dbeafe;
  background: #eff6ff;
  color: #1e40af;
  border-radius: 999px;
  padding: 0.28rem 0.62rem;
  font-size: 0.8rem;
}

.highlights-grid,
.workshops-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
}

.highlight-item,
.workshop-card {
  padding: 1rem;
}

.highlight-icon,
.workshop-num {
  font-size: 1.2rem;
  margin-bottom: 0.4rem;
}

.schedule-tabs {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 1rem;
}

.schedule-tab {
  border: 0;
  background: #ffffff;
  color: #334155;
  font-weight: 600;
  padding: 0.6rem 1rem;
  cursor: pointer;
}

.schedule-tab.active {
  color: #ffffff;
  background: var(--primary);
}

.schedule-content {
  display: none;
}

.schedule-content.active {
  display: block;
}

.schedule-timeline {
  display: grid;
  gap: 0.65rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: 170px 1fr;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #ffffff;
  overflow: hidden;
}

.timeline-item .time {
  background: var(--surface);
  font-weight: 700;
  color: #0f172a;
  padding: 0.85rem;
  border-right: 1px solid var(--border);
}

.timeline-content {
  padding: 0.85rem;
}

.timeline-content h4 {
  margin-bottom: 0.2rem;
}

.timeline-content .tracks {
  margin-top: 0.55rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.special-events {
  margin-top: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  padding: 1rem;
}

.events-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.advisory-chair {
  margin-bottom: 1rem;
}

.chair-card {
  display: grid;
  grid-template-columns: 115px 1fr;
  gap: 0.9rem;
  align-items: center;
  padding: 1rem;
}

.chair-card--text {
  display: block;
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
  padding: 1.25rem 1.5rem;
}

.chair-card--text .chair-info h3 {
  margin-bottom: 0.35rem;
}

.chair-card--text .chair-role {
  display: inline-flex;
  margin-top: 0.5rem;
}

.chair-photo-wrap {
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.chair-photo {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.chair-role {
  display: inline-flex;
  margin-top: 0.35rem;
  color: var(--gold);
  font-weight: 700;
}

.advisory-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
}

.advisory-col {
  padding: 1rem;
}

.advisory-col h4 {
  margin-bottom: 0.6rem;
}

.advisory-col li + li {
  margin-top: 0.42rem;
}

.registration-grid {
  grid-template-columns: 1fr 1fr 0.9fr;
}

.reg-table-wrapper,
.reg-includes {
  padding: 1rem;
}

.reg-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.7rem;
  font-size: 0.92rem;
}

.reg-table th,
.reg-table td {
  border: 1px solid var(--border);
  padding: 0.55rem 0.6rem;
  text-align: left;
}

.reg-table thead th {
  background: var(--surface);
  font-weight: 700;
}

.reg-table tbody tr:nth-child(even) {
  background: #fcfcfd;
}

.mt {
  margin-top: 1.05rem;
}

.reg-includes ul {
  margin-bottom: 1rem;
}

.reg-includes li + li {
  margin-top: 0.36rem;
}

.venue-grid {
  grid-template-columns: 1fr 0.9fr;
}

.venue-details {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
  margin: 1rem 0;
}

.venue-detail,
.accommodation,
.tour-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #ffffff;
  padding: 0.85rem;
}

.venue-detail strong {
  display: block;
  margin-bottom: 0.18rem;
}

.venue-detail span {
  color: var(--muted);
  font-size: 0.88rem;
}

.tour-fee {
  display: inline-flex;
  margin-top: 0.5rem;
  color: var(--gold);
  font-weight: 700;
}

.contact-wrapper {
  grid-template-columns: 1fr 1fr;
}

.contact-links {
  display: grid;
  gap: 0.5rem;
  margin-top: 1rem;
}

.contact-link {
  display: flex;
  gap: 0.55rem;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #ffffff;
  padding: 0.62rem 0.7rem;
  color: #1f2937;
}

.contact-link svg {
  width: 17px;
  height: 17px;
  color: var(--primary);
  flex: 0 0 auto;
}

.contact-form {
  padding: 1rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
}

.form-group {
  margin-bottom: 0.8rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.58rem 0.65rem;
  font: inherit;
  color: var(--text);
  background: #ffffff;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #93c5fd;
  box-shadow: 0 0 0 3px #dbeafe;
}

.footer {
  margin-top: 2.5rem;
  background: #0f172a;
  color: #cbd5e1;
  padding: 2.2rem 0 1.2rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr 1fr;
  gap: 1rem;
}

.footer-links,
.footer-brand,
.footer-partners {
  border: 1px solid rgba(148, 163, 184, 0.24);
  border-radius: var(--radius-md);
  padding: 0.9rem;
  background: rgba(15, 23, 42, 0.38);
}

.footer-logo-frame {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(148, 163, 184, 0.38);
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.45rem;
  box-sizing: border-box;
  margin-bottom: 0.7rem;
  overflow: visible;
}

.footer-logo-frame--iitm {
  padding: 0.55rem;
}

.footer-institution-logo {
  display: block;
  width: 62px;
  height: 62px;
  object-fit: contain;
  object-position: center;
}

.footer-institution-logo--iitm {
  width: 56px;
  height: 56px;
}

.footer-links a {
  display: block;
  color: #dbeafe;
  margin-top: 0.42rem;
}

.footer-bottom {
  margin-top: 1rem;
  padding-top: 0.9rem;
  border-top: 1px solid rgba(148, 163, 184, 0.24);
  display: grid;
  gap: 0.85rem;
}

.footer-bottom__legal {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.blessing {
  color: #fbbf24;
  font-weight: 600;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.58rem 0.95rem;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: #ffffff;
}

.btn-outline {
  background: #ffffff;
  color: var(--primary);
  border-color: #93c5fd;
}

.btn-outline:hover {
  background: #eff6ff;
}

.btn-block {
  width: 100%;
}

.btn-lg {
  font-size: 0.98rem;
  padding: 0.7rem 1.05rem;
}

.btn-sm {
  font-size: 0.8rem;
  padding: 0.45rem 0.75rem;
}

[data-aos] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}

[data-aos].visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1100px) {
  .nav-row {
    gap: 0.2rem;
  }

  .nav-link {
    font-size: 0.86rem;
    padding: 0.4rem 0.65rem;
  }

  .header-logo--imaps {
    height: 40px;
    width: 40px;
  }

  .header-logo--inemi {
    height: 44px;
  }
}

@media (max-width: 992px) {
  :root {
    --header-height: 62px;
  }

  .header-bar {
    flex-wrap: wrap;
    width: calc(100% - 2rem);
    gap: 0;
    padding-right: 0;
  }

  .nav-toggle {
    display: inline-block;
    margin-left: auto;
  }

  .nav-row {
    display: none;
    flex: 1 1 100%;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    order: 3;
    width: 100%;
    border-top: 1px solid var(--border);
    padding: 0.65rem 0 0.75rem;
    margin-top: 0.5rem;
    max-height: min(70vh, 420px);
    overflow-y: auto;
    overflow-x: hidden;
    background: #ffffff;
  }

  .nav-row.active {
    display: flex;
  }

  .nav-link {
    border-radius: var(--radius-sm);
    margin: 0 0.7rem;
    padding: 0.6rem 0.75rem;
  }

  .hero-meta,
  .dates-grid,
  .stats-row,
  .highlights-grid,
  .workshops-grid,
  .advisory-grid,
  .footer-top {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .about-grid,
  .cfp-wrapper,
  .venue-grid,
  .contact-wrapper,
  .registration-grid,
  .leadership-grid {
    grid-template-columns: 1fr;
  }

  .leadership-grid--single {
    grid-template-columns: 1fr;
    max-width: 100%;
  }

  .leader-photo-wrap {
    height: 300px;
    min-height: 300px;
    padding: 1.15rem 1rem;
  }

  .leader-photo {
    width: 200px;
    height: 260px;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }

  .timeline-item .time {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }
}

@media (max-width: 640px) {
  :root {
    --header-height: 58px;
  }

  .container,
  .container-narrow {
    width: calc(100% - 1.2rem);
  }

  .header-title {
    font-size: 1.15rem;
  }

  .hero-banner {
    padding-top: 3rem;
    padding-bottom: 2.6rem;
  }

  .content-box,
  .leader-body,
  .track-card__body,
  .track-card__head,
  .chair-card,
  .contact-form,
  .cfp-content,
  .cfp-publishers,
  .reg-table-wrapper,
  .reg-includes {
    padding: 0.85rem;
  }

  .hero-university,
  .hero-partner,
  .chair-card,
  .form-row {
    grid-template-columns: 1fr;
  }

  .hero-logo-frame {
    margin: 0 auto;
  }

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

  .countdown-item {
    min-width: 64px;
  }

  .dates-grid,
  .stats-row,
  .highlights-grid,
  .workshops-grid,
  .advisory-grid,
  .footer-top,
  .leadership-highlights,
  .venue-details {
    grid-template-columns: 1fr;
  }

  .tracks-cta {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .tracks-cta .btn {
    width: 100%;
  }

  .schedule-tabs {
    display: grid;
    width: 100%;
    border-radius: var(--radius-sm);
  }

  .schedule-tab {
    width: 100%;
    text-align: center;
  }

  .poster-container {
    width: calc(100% - 1.2rem);
  }

  .tracks-cta {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .tracks-cta .btn {
    width: 100%;
  }

  .footer-bottom__legal {
    flex-direction: column;
  }
}

/* ─── Three-Day Programme ─── */
.programme-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.55rem 1rem;
  margin: 0 auto 1.5rem;
  max-width: 920px;
}

.programme-legend__item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: #475569;
}

.programme-legend__item i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.programme-legend__item--break i { background: #94a3b8; }
.programme-legend__item--keynote i { background: #a67c00; }
.programme-legend__item--workshop i { background: #0d9488; }
.programme-legend__item--track-a i { background: #0a4d8c; }
.programme-legend__item--track-b i { background: #6b1d2a; }
.programme-legend__item--track-c i { background: #7c3aed; }
.programme-legend__item--network i { background: #c2410c; }

.programme-tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.programme-tab {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.15rem;
  text-align: left;
  padding: 0.95rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: #ffffff;
  color: #334155;
  cursor: pointer;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.programme-tab:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 14px rgba(10, 77, 140, 0.08);
}

.programme-tab.active {
  background: linear-gradient(145deg, var(--navy-start, #001a33), var(--navy-end, #003366));
  border-color: transparent;
  color: #ffffff;
  box-shadow: 0 10px 24px rgba(0, 26, 51, 0.18);
}

.programme-tab__day {
  font-family: var(--font-serif, Georgia, serif);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.2;
}

.programme-tab__date {
  font-size: 0.82rem;
  font-weight: 600;
  opacity: 0.85;
}

.programme-tab__focus {
  font-size: 0.78rem;
  font-weight: 500;
  opacity: 0.75;
  margin-top: 0.2rem;
}

.programme-panel {
  display: none;
}

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

.programme-panel__intro {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.85rem 1.25rem;
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.programme-panel__intro h3 {
  font-family: var(--font-serif, Georgia, serif);
  font-size: clamp(1.35rem, 2.4vw, 1.7rem);
  color: var(--navy-start, #001a33);
  margin: 0 0 0.25rem;
}

.programme-panel__intro p {
  margin: 0;
  color: #64748b;
  font-size: 0.95rem;
  max-width: 42rem;
}

.programme-panel__badge {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  background: var(--gold-soft, #faf5e8);
  color: var(--gold, #a67c00);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.agenda-list {
  display: grid;
  gap: 0.75rem;
}

.agenda-item {
  display: grid;
  grid-template-columns: 150px 1fr;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: #ffffff;
  overflow: hidden;
  border-left: 4px solid #94a3b8;
  transition: box-shadow 0.2s ease;
}

.agenda-item:hover {
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.06);
}

.agenda-item--break { border-left-color: #94a3b8; }
.agenda-item--keynote { border-left-color: #a67c00; }
.agenda-item--workshop { border-left-color: #0d9488; }
.agenda-item--track-a { border-left-color: #0a4d8c; }
.agenda-item--track-b { border-left-color: #6b1d2a; }
.agenda-item--track-c { border-left-color: #7c3aed; }
.agenda-item--network { border-left-color: #c2410c; }

.agenda-item__time {
  display: flex;
  align-items: flex-start;
  padding: 1rem 0.9rem;
  background: var(--surface, #f3f1ec);
  font-size: 0.86rem;
  font-weight: 700;
  color: #0f172a;
  font-variant-numeric: tabular-nums;
  border-right: 1px solid var(--border);
  white-space: nowrap;
}

.agenda-item__body {
  padding: 0.95rem 1.1rem 1.05rem;
  min-width: 0;
}

.agenda-item__type {
  display: inline-block;
  margin-bottom: 0.35rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #64748b;
}

.agenda-item--keynote .agenda-item__type { color: #a67c00; }
.agenda-item--workshop .agenda-item__type { color: #0f766e; }
.agenda-item--track-a .agenda-item__type { color: #0a4d8c; }
.agenda-item--track-b .agenda-item__type { color: #6b1d2a; }
.agenda-item--track-c .agenda-item__type { color: #6d28d9; }
.agenda-item--network .agenda-item__type { color: #c2410c; }

.agenda-item__title {
  margin: 0;
  font-family: var(--font-serif, Georgia, serif);
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--navy-start, #001a33);
  line-height: 1.35;
}

.agenda-item__meta {
  margin: 0.4rem 0 0;
  font-size: 0.9rem;
  color: #475569;
}

.agenda-speakers {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1rem;
  margin-top: 0.55rem;
}

.agenda-speakers span {
  font-size: 0.88rem;
  color: #475569;
}

.agenda-parallel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 0.85rem;
}

.agenda-parallel__card {
  padding: 0.85rem 0.95rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface, #f8f7f4);
}

.agenda-parallel__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 1.4rem;
  padding: 0 0.4rem;
  margin-bottom: 0.4rem;
  border-radius: 999px;
  background: #0d9488;
  color: #ffffff;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.agenda-parallel__card h5 {
  margin: 0 0 0.3rem;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--navy-start, #001a33);
  line-height: 1.3;
}

.agenda-parallel__card h5 em {
  font-style: italic;
  font-weight: 500;
  color: #64748b;
}

.agenda-parallel__card p {
  margin: 0;
  font-size: 0.85rem;
  color: #64748b;
}

.agenda-parallel__by {
  display: block;
  margin-top: 0.45rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: #0f766e;
}

.agenda-topics {
  margin: 0.75rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.5rem;
}

.agenda-topics li {
  position: relative;
  padding: 0.65rem 0.85rem 0.65rem 1.35rem;
  border-radius: var(--radius-sm);
  background: #f5f3ff;
  border: 1px solid #e9e5ff;
  font-size: 0.9rem;
  color: #3730a3;
  line-height: 1.45;
}

.agenda-topics li::before {
  content: "";
  position: absolute;
  left: 0.65rem;
  top: 1rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #7c3aed;
}

.programme-note {
  margin: 1.5rem 0 0;
  text-align: center;
  font-size: 0.88rem;
  color: #64748b;
  font-style: italic;
}

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

  .programme-tab {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0.35rem 0.75rem;
  }

  .programme-tab__focus {
    margin-top: 0;
    width: 100%;
  }

  .agenda-parallel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .agenda-item {
    grid-template-columns: 1fr;
  }

  .agenda-item__time {
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 0.7rem 1rem;
  }
}

@media (min-width: 1440px) {
  .poster-container {
    width: min(1200px, calc(100vw - 2rem));
  }

  .pdf-viewer__frame {
    height: min(82vh, 900px);
  }
}