/* Biophysics Pashchim Custom Premium Academic Styling */
@import url('https://fonts.googleapis.com/css2?family=Georgia&family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;600;800&display=swap');

:root {
  --primary-navy: #0f172a;
  --secondary-navy: #1e293b;
  --accent-teal: #0d9488;
  --accent-gold: #d97706;
  --bg-light: #f8fafc;
  --bg-white: #ffffff;
  --text-dark: #334155;
  --text-muted: #64748b;
  --border-color: #e2e8f0;
  --sans-font: 'Inter', sans-serif;
  --serif-font: 'Georgia', serif;
  --brand-font: 'Outfit', sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--sans-font);
  color: var(--text-dark);
  background-color: var(--bg-light);
}

body {
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-image: linear-gradient(rgba(248, 250, 252, 0.88), rgba(248, 250, 252, 0.88)), url('images/background.jpg');
  background-attachment: fixed;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* Header & Navigation */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--primary-navy);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  border-bottom: 2px solid var(--accent-teal);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0.75rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo-helix {
  width: 42px;
  height: 42px;
  fill: var(--accent-teal);
  transition: transform 0.8s ease;
}

.logo-link:hover .logo-helix {
  transform: rotate(360deg);
}

.logo-text {
  font-family: var(--brand-font);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--bg-light);
  letter-spacing: -0.025em;
}

.logo-text span {
  color: var(--accent-teal);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  color: #cbd5e1;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.925rem;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  transition: all 0.3s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--bg-white);
  background-color: rgba(255, 255, 255, 0.08);
}

/* Dropdown styling */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--secondary-navy);
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
  border-radius: 8px;
  min-width: 200px;
  padding: 0.5rem 0;
  display: none;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  border: 1px solid rgba(255,255,255,0.08);
}

.nav-item:hover .dropdown-menu {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.dropdown-link {
  display: block;
  padding: 0.6rem 1.2rem;
  color: #94a3b8;
  text-decoration: none;
  font-size: 0.9rem;
  transition: all 0.25s ease;
}

.dropdown-link:hover {
  background-color: rgba(255,255,255,0.05);
  color: var(--bg-white);
}

/* Header Right items */
.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.login-btn {
  background-color: transparent;
  color: var(--bg-white);
  border: 1.5px solid var(--accent-teal);
  padding: 0.5rem 1.25rem;
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.login-btn:hover {
  background-color: var(--accent-teal);
  box-shadow: 0 0 15px rgba(13, 148, 136, 0.4);
}

.social-links {
  display: flex;
  gap: 0.75rem;
}

.social-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background-color: rgba(255,255,255,0.06);
  color: #cbd5e1;
  transition: all 0.3s ease;
  text-decoration: none;
}

.social-icon:hover {
  background-color: var(--accent-teal);
  color: var(--bg-white);
  transform: translateY(-2px);
}

.social-icon svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* Hamburger mobile menu button */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--bg-light);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Main Content Container & SPA Views */
main {
  flex: 1;
}

.spa-view {
  display: none;
  animation: fadeIn 0.5s ease forwards;
}

.spa-view.active-view {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Google Sites Style Hero Section with Light Background illustration */
.hero-section-sites {
  position: relative;
  background-image: linear-gradient(rgba(255, 255, 255, 0.35), rgba(255, 255, 255, 0.35)), url('images/background.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 6rem 2rem;
  width: 100%;
  border-bottom: 2px solid var(--border-color);
}

.hero-card-light {
  background: rgba(255, 255, 255, 0.90);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 20px;
  padding: 1.75rem 2.25rem;
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.08);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
}

.hero-divider-sites {
  height: 2px;
  width: 100px;
  background: linear-gradient(90deg, transparent, var(--accent-teal), transparent);
  margin: 0.25rem auto 0.5rem auto;
}

.hero-title-sites {
  font-family: var(--sans-font);
  font-size: 2.25rem;
  font-weight: 800;
  color: #0f172a;
  margin: 0;
  letter-spacing: -0.015em;
  white-space: nowrap;
}

.hero-theme-sites {
  font-family: var(--sans-font);
  font-size: 1.65rem;
  font-weight: 600;
  color: #15803d; /* exact leaf green color like in Sites screenshot! */
  margin: 0;
  letter-spacing: -0.01em;
}

.hero-meta-sites {
  font-family: var(--sans-font);
  font-size: 1.15rem;
  font-weight: 500;
  color: #475569;
  margin: 0;
}

/* About Page (Home) Team and Institutes */
.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 5rem 2rem;
}

.section-title {
  text-align: center;
  font-family: var(--brand-font);
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 3.5rem;
  color: var(--primary-navy);
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -0.75rem;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background-color: var(--accent-teal);
  border-radius: 2px;
}

.institute-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 2rem;
}

.institute-card {
  background-color: var(--bg-white);
  border-radius: 12px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
  transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  border: 1px solid var(--border-color);
  min-height: 160px;
  text-decoration: none;
  flex: 0 1 calc(25% - 1.25rem);
  min-width: 200px;
  max-width: 240px;
}

.institute-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.03);
  border-color: var(--accent-teal);
}

.institute-logo {
  height: 80px;
  width: auto;
  max-width: 95%;
  object-fit: contain;
  margin-bottom: 1rem;
  transition: all 0.35s ease;
}

.institute-card:hover .institute-logo {
  transform: scale(1.06);
}

.institute-name {
  font-family: var(--sans-font);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--primary-navy);
  text-align: center;
}

.institute-loc {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Contact Info Section */
.contact-block {
  background-image: linear-gradient(rgba(15, 23, 42, 0.92), rgba(15, 23, 42, 0.92)), url('images/background.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--bg-white);
  border-radius: 16px;
  padding: 3.5rem 2rem;
  text-align: center;
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
  position: relative;
  overflow: hidden;
}

.contact-block::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(13, 148, 136, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.contact-block h3 {
  font-family: var(--brand-font);
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.contact-block p {
  color: #cbd5e1;
  max-width: 600px;
  margin: 0 auto 2rem auto;
}

.contact-email {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background-color: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--bg-white);
  font-size: 1.15rem;
  font-weight: 600;
  padding: 0.85rem 2rem;
  border-radius: 30px;
  text-decoration: none;
  transition: all 0.3s ease;
}

.contact-email:hover {
  background-color: var(--accent-teal);
  border-color: var(--accent-teal);
  box-shadow: 0 0 20px rgba(13, 148, 136, 0.4);
  transform: scale(1.03);
}

.contact-email svg {
  width: 20px;
  height: 20px;
}

/* Research Areas Page */
.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
}

.research-card {
  background-color: var(--bg-white);
  border-radius: 16px;
  padding: 2.5rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.04), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
  border: 1px solid var(--border-color);
  transition: all 0.4s ease;
}

.research-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.05);
  border-color: var(--accent-teal);
}

.research-card-icon {
  background-color: rgba(13, 148, 136, 0.08);
  width: 60px;
  height: 60px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-teal);
  margin-bottom: 1.5rem;
  transition: all 0.3s ease;
}

.research-card:hover .research-card-icon {
  background-color: var(--accent-teal);
  color: var(--bg-white);
  transform: rotateY(360deg);
}

.research-card-icon svg {
  width: 32px;
  height: 32px;
}

.research-card-title {
  font-family: var(--brand-font);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary-navy);
  margin-bottom: 1rem;
}

.research-card-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Meetings Layout - Upcoming & Previous */
.meeting-hero {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  color: var(--bg-white);
  padding: 4rem 2rem;
  text-align: center;
  border-radius: 16px;
  margin-bottom: 4rem;
  position: relative;
}

.meeting-hero h2 {
  font-family: var(--brand-font);
  font-size: 2.25rem;
  margin-bottom: 1rem;
}

.meeting-hero p {
  color: #94a3b8;
}

.countdown-box {
  display: inline-flex;
  gap: 1.5rem;
  margin-top: 1.5rem;
  background-color: rgba(255,255,255,0.05);
  padding: 1rem 2rem;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.08);
}

.countdown-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.countdown-num {
  font-family: var(--brand-font);
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-teal);
}

.countdown-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: #94a3b8;
  letter-spacing: 0.05em;
}

.upcoming-container {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  margin-bottom: 5rem;
}

.upcoming-card {
  background-image: linear-gradient(rgba(255, 255, 255, 0.90), rgba(255, 255, 255, 0.90)), url('images/background.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-radius: 16px;
  box-shadow: 0 10px 15px -3px rgba(0,0,0,0.05);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.upcoming-card-header {
  background: linear-gradient(135deg, #0d9488 0%, #0f766e 100%);
  color: var(--bg-white);
  padding: 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.upcoming-badge {
  background-color: var(--accent-gold);
  color: var(--bg-white);
  padding: 0.35rem 1rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  border-radius: 20px;
}

.upcoming-card-body {
  padding: 2.5rem;
}

.upcoming-meta {
  display: flex;
  gap: 2rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.5rem;
}

.upcoming-meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  color: var(--text-dark);
}

.upcoming-meta-item svg {
  width: 18px;
  height: 18px;
  color: var(--accent-teal);
}

.agenda-list {
  list-style: none;
}

.agenda-item {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 1.25rem;
}

.agenda-item::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  width: 20px;
  height: 20px;
  background-color: rgba(13, 148, 136, 0.08);
  color: var(--accent-teal);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: bold;
}

.agenda-time {
  font-weight: 600;
  color: var(--primary-navy);
}

.registration-card {
  background-image: linear-gradient(rgba(255, 255, 255, 0.90), rgba(255, 255, 255, 0.90)), url('images/background.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-radius: 16px;
  padding: 2.5rem;
  box-shadow: 0 10px 15px -3px rgba(0,0,0,0.05);
  border: 1px solid var(--border-color);
  height: fit-content;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.reg-title {
  font-family: var(--brand-font);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-navy);
}

.reg-btn {
  background-color: var(--accent-teal);
  color: var(--bg-white);
  border: none;
  padding: 0.85rem 1.5rem;
  font-weight: 700;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s;
  text-align: center;
  text-decoration: none;
}

.reg-btn:hover {
  background-color: #0f766e;
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(13, 148, 136, 0.3);
}

/* Previous Meetings Timeline */
.timeline {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
}

.timeline::after {
  content: '';
  position: absolute;
  width: 4px;
  background-color: var(--border-color);
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -2px;
}

.timeline-item {
  padding: 10px 40px;
  position: relative;
  background-color: inherit;
  width: 50%;
}

.timeline-item::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  right: -10px;
  background-color: var(--bg-white);
  border: 4px solid var(--accent-teal);
  top: 15px;
  border-radius: 50%;
  z-index: 1;
}

.left {
  left: 0;
}

.right {
  left: 50%;
}

.right::after {
  left: -10px;
}

.timeline-content {
  padding: 2rem;
  background-color: var(--bg-white);
  position: relative;
  border-radius: 12px;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
  border: 1px solid var(--border-color);
}

.timeline-year {
  display: inline-block;
  background-color: var(--accent-teal);
  color: var(--bg-white);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: bold;
  margin-bottom: 0.75rem;
}

.timeline-host {
  font-family: var(--brand-font);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-navy);
  margin-bottom: 0.5rem;
}

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

/* Collaborations Layout */
.collab-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.collab-card {
  background-color: var(--bg-white);
  border-radius: 16px;
  padding: 2rem;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.02);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.collab-card:hover {
  border-color: var(--accent-teal);
  box-shadow: 0 10px 15px -3px rgba(0,0,0,0.05);
  transform: translateY(-3px);
}

.collab-title {
  font-family: var(--brand-font);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--primary-navy);
}

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

/* Glassmorphism Panels */
.content-glass {
  background-image: linear-gradient(rgba(255, 255, 255, 0.88), rgba(255, 255, 255, 0.88)), url('images/background.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 8px 32px rgba(15, 23, 42, 0.04);
}

/* Conference Registration & Abstract Forms */
.student-form-card {
  background-image: linear-gradient(rgba(255, 255, 255, 0.90), rgba(255, 255, 255, 0.90)), url('images/background.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-radius: 16px;
  padding: 2.5rem;
  border: 1px solid var(--border-color);
  box-shadow: 0 10px 15px -3px rgba(0,0,0,0.05);
}

.registration-guidelines-card {
  background-image: linear-gradient(rgba(255, 255, 255, 0.90), rgba(255, 255, 255, 0.90)), url('images/background.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-radius: 16px;
  box-shadow: 0 10px 15px -3px rgba(0,0,0,0.05);
  border: 1px solid var(--border-color);
  overflow: hidden;
  margin-bottom: 3rem;
}

.registration-guidelines-body {
  padding: 2.5rem;
  background: rgba(255,255,255,0.7);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2.5rem;
}

.google-form-container-card {
  background-image: linear-gradient(rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.92)), url('images/background.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-radius: 16px;
  padding: 3rem;
  border: 1px solid var(--border-color);
  box-shadow: 0 15px 30px -5px rgba(0,0,0,0.08);
  max-width: 860px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary-navy);
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  font-family: var(--sans-font);
  font-size: 0.9rem;
  transition: all 0.3s;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-teal);
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

/* Scientific Schedule Vertical Timeline */
.agenda-timeline-vertical {
  position: relative;
  margin: 2rem 0;
  padding-left: 2rem;
  border-left: 3px solid rgba(13, 148, 136, 0.25);
}

.timeline-slot {
  position: relative;
  margin-bottom: 2rem;
  transition: all 0.3s ease;
}

.timeline-slot::before {
  content: '';
  position: absolute;
  left: -2.35rem;
  top: 0.25rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--bg-white);
  border: 3px solid var(--accent-teal);
  box-shadow: 0 0 0 4px rgba(13, 148, 136, 0.1);
  transition: all 0.3s ease;
}

.timeline-slot:hover::before {
  background-color: var(--accent-teal);
  transform: scale(1.2);
}

.slot-time {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-teal);
  text-transform: uppercase;
  margin-bottom: 0.35rem;
  letter-spacing: 0.05em;
}

.slot-details {
  background: var(--bg-white);
  padding: 1.25rem 1.5rem;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  box-shadow: 0 2px 4px rgba(0,0,0,0.01);
  transition: all 0.3s ease;
}

.timeline-slot:hover .slot-details {
  border-color: var(--accent-teal);
  box-shadow: 0 4px 12px rgba(13, 148, 136, 0.06);
  transform: translateX(4px);
}

.slot-title {
  font-family: var(--brand-font);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary-navy);
  margin-bottom: 0.35rem;
}

.slot-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.break-slot .slot-details {
  background: var(--bg-light);
  border-style: dashed;
  border-color: #cbd5e1;
}

.break-slot .slot-title {
  color: var(--text-dark);
}

.break-slot::before {
  border-color: #94a3b8;
  box-shadow: none;
}

/* Footer Section */
footer {
  background-color: var(--primary-navy);
  color: #94a3b8;
  padding: 4rem 2rem 2rem 2rem;
  border-top: 4px solid var(--accent-teal);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  color: var(--bg-white);
  font-family: var(--brand-font);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  position: relative;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 0;
  width: 35px;
  height: 3px;
  background-color: var(--accent-teal);
  border-radius: 2px;
}

.footer-text {
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: #94a3b8;
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s;
}

.footer-links a:hover {
  color: var(--accent-teal);
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-copyright {
  font-size: 0.85rem;
}

/* Response Message alerts */
.alert-toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: var(--accent-teal);
  color: var(--bg-white);
  padding: 1rem 2rem;
  border-radius: 8px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.15);
  font-weight: 600;
  z-index: 2500;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.alert-toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* Premium Conference Programme Table */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 2rem 0;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
}

.programme-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.925rem;
}

.programme-table th {
  background-color: var(--secondary-navy);
  color: #f8fafc;
  font-family: var(--sans-font);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 1.15rem 1.5rem;
  border-bottom: 2px solid rgba(255, 255, 255, 0.05);
}

.programme-table td {
  padding: 1.15rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-dark);
  background-color: rgba(255, 255, 255, 0.5);
  transition: all 0.3s ease;
  vertical-align: middle;
}

.programme-table tr:hover td {
  background-color: rgba(13, 148, 136, 0.05);
}

.programme-table tr:last-child td {
  border-bottom: none;
}

.time-col {
  font-weight: 700;
  color: var(--accent-teal);
  white-space: nowrap;
  font-family: var(--sans-font);
}

.title-col {
  font-weight: 500;
}

/* Color-Coded Conference Session Badges */
.badge {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  border-radius: 20px;
  font-size: 0.725rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  text-align: center;
  border: 1px solid transparent;
}

.badge-intro {
  background-color: rgba(71, 85, 105, 0.08);
  border-color: rgba(71, 85, 105, 0.2);
  color: #475569;
}

.badge-faculty {
  background-color: rgba(13, 148, 136, 0.08);
  border-color: rgba(13, 148, 136, 0.25);
  color: #0d9488;
}

.badge-student {
  background-color: rgba(217, 119, 6, 0.08);
  border-color: rgba(217, 119, 6, 0.25);
  color: #d97706;
}

/* Break Row Custom Styling */
.break-row td {
  background-color: rgba(13, 148, 136, 0.04) !important;
}

.break-title {
  font-weight: 700;
  color: var(--accent-teal);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
}

/* Mobile Responsive Adjustments */
@media(max-width: 1024px) {
  .upcoming-container {
    grid-template-columns: 1fr;
  }
  .news-container {
    grid-template-columns: 1fr;
  }
  .student-grid {
    grid-template-columns: 1fr;
  }
}

@media(max-width: 768px) {
  .nav-menu {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  .institute-card {
    flex: 1 1 calc(50% - 1rem);
    min-width: 140px;
  }
  .timeline::after {
    left: 31px;
  }
  .timeline-item {
    width: 100%;
    padding-left: 70px;
    padding-right: 25px;
  }
  .timeline-item::after {
    left: 21px;
    right: auto;
  }
  .right {
    left: 0%;
  }
  .registration-guidelines-body {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 1.5rem;
  }
  .google-form-container-card {
    padding: 1.5rem 1rem;
  }
  .hero-section-sites {
    padding: 4rem 1rem;
  }
  .hero-card-light {
    padding: 1.5rem 1.25rem;
    width: 95%;
  }
  .hero-title-sites {
    font-size: 1.85rem;
    white-space: normal;
  }
  .hero-theme-sites {
    font-size: 1.25rem;
    line-height: 1.4;
  }
  .hero-meta-sites {
    font-size: 0.95rem;
  }
}