/* Design System */
:root {
    --primary: #0B2B4A;
    --accent: #0FA3A3;
    --neutral-bg: #F7F9FB;
    --white: #FFFFFF;
    --text-dark: #1A1A1A;
    --text-light: #666666;
    --border-color: #E8EEF5;
    --shadow-sm: 0 1px 3px rgba(11, 43, 74, 0.08);
    --shadow-md: 0 4px 12px rgba(11, 43, 74, 0.12);
    --shadow-lg: 0 8px 24px rgba(11, 43, 74, 0.15);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--white);
    color: var(--text-dark);
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Merriweather', serif;
    font-weight: 700;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* Header & Navigation */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--white);
    box-shadow: var(--shadow-sm);
}

.navbar {
    height: 70px;
    display: flex;
    align-items: center;
}

.nav-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 2px;
}

.nav-menu {
    display: none;
    list-style: none;
}

@media (min-width: 769px) {
    .nav-menu {
        display: flex;
        gap: 2rem;
        align-items: center;
    }

    .nav-menu a {
        text-decoration: none;
        color: var(--text-dark);
        font-size: 0.95rem;
        font-weight: 500;
        transition: color 0.3s ease;
    }

    .nav-menu a:hover {
        color: var(--accent);
    }
}

.menu-btn {
    display: flex;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    gap: 5px;
    padding: 8px;
}

@media (min-width: 769px) {
    .menu-btn {
        display: none;
    }
}

.menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--primary);
    transition: all 0.3s ease;
}

.menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.nav-menu.active {
    display: flex !important;
    flex-direction: column;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 1rem;
    box-shadow: var(--shadow-md);
    gap: 0.5rem;
}

.nav-menu.active a {
    padding: 0.75rem;
    display: block;
    color: var(--text-dark);
    text-decoration: none;
}

/* Hero Section */
.hero {
    /*background: linear-gradient(135deg, var(--primary) 0%, #0D3A5C 100%);*/
    color: var(--white);
    padding: 4rem 1.25rem;
    text-align: center;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(1.8rem, 5vw, 2.8rem);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-tagline {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    font-weight: 500;
}

.hero-meta {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    margin: 2rem 0;
    font-size: 0.95rem;
}

@media (min-width: 600px) {
    .hero-meta {
        grid-template-columns: 1fr 1fr;
    }
}

.meta-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.meta-item i {
    font-size: 1.2rem;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin: 2rem 0;
}

.deadlines {
    font-size: 0.9rem;
    opacity: 0.85;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.deadline-label {
    font-weight: 600;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn-primary {
    background: var(--accent);
    color: var(--white);
}

.btn-primary:hover {
    background: #0E8B8B;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary);
}

.btn-sm {
    padding: 0.6rem 1.2rem;
    font-size: 0.85rem;
}

.link-btn {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 2px solid var(--accent);
    transition: all 0.3s ease;
}

.link-btn:hover {
    color: #0E8B8B;
    border-bottom-color: #0E8B8B;
}

/* Sections */
section {
    padding: 0.5rem 0;
}

section h2 {
    font-size: clamp(1.6rem, 4vw, 2.2rem);
    margin-bottom: 2rem;
    color: var(--primary);
    text-align: center;
}

.about {
    background: var(--neutral-bg);
}

.about p {
    max-width: 900px;
    margin: 0 auto;
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-light);
    text-align: center;
}

.department {
    background: var(--white);
}

.department p {
    max-width: 900px;
    margin: 0 auto 2rem;
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-light);
    text-align: center;
}

.accreditation {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    max-width: 500px;
    margin: 0 auto;
}

.badge {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--accent);
    color: var(--white);
    padding: 0.75rem 1.25rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.badge i {
    font-size: 1.1rem;
}

/* CFP Section */
.cfp {
    background: var(--neutral-bg);
}

.cfp > .container > p {
    max-width: 900px;
    margin: 0 auto 2.5rem;
    text-align: center;
    color: var(--text-light);
    line-height: 1.8;
}

.cfp-details {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .cfp-details {
        grid-template-columns: 1fr 1fr;
    }
}

.cfp-box {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.cfp-box h3 {
    color: var(--primary);
    margin-bottom: 1rem;
}

.cfp-box ul {
    list-style: none;
    padding-left: 0;
}

.cfp-box li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-light);
}

.cfp-box li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
}

.cfp-box p {
    margin: 0.75rem 0;
    color: var(--text-light);
}

.cfp-box a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
}

.highlight-box {
    background: linear-gradient(135deg, rgba(15, 163, 163, 0.1) 0%, rgba(15, 163, 163, 0.05) 100%);
    border-left: 4px solid var(--accent);
    padding: 1.5rem;
    border-radius: 6px;
    max-width: 900px;
    margin: 0 auto;
}

.highlight-box p {
    color: var(--primary);
    font-weight: 500;
}

/* Important Dates */
.important-dates {
    background: var(--white);
}

.dates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.date-card {
    background: linear-gradient(135deg, var(--neutral-bg) 0%, var(--white) 100%);
    padding: 2rem 1.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all 0.3s ease;
}

.date-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
}

.date-icon {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 1rem;
}

.date-card h3 {
    color: var(--primary);
    font-size: 1rem;
    margin-bottom: 0.75rem;
}

.date-value {
    font-size: 1.3rem;
    color: var(--accent);
    font-weight: 700;
}

/* Schedule Section */
.schedule {
    background: var(--neutral-bg);
}

.schedule-tabs {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    background: var(--white);
    border: 2px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-dark);
    transition: all 0.3s ease;
}

.tab-btn.active {
    background: var(--accent);
    color: var(--white);
    border-color: var(--accent);
}

.tab-btn:hover {
    border-color: var(--accent);
}

.tab-content {
    display: none;
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow-md);
}

.tab-content.active {
    display: block;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.day-title {
    background: var(--primary);
    color: var(--white);
    padding: 1rem;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.timeline {
    position: relative;
    padding: 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 35px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    padding-left: 100px;
    margin-bottom: 2rem;
}

.time-marker {
    position: absolute;
    left: 0;
    width: 70px;
    text-align: right;
    font-weight: 700;
    color: var(--primary);
    font-size: 0.95rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 24px;
    top: 6px;
    width: 22px;
    height: 22px;
    background: var(--accent);
    border-radius: 50%;
    border: 4px solid var(--white);
    box-shadow: var(--shadow-sm);
}

.event {
    background: var(--neutral-bg);
    padding: 1rem;
    border-radius: 6px;
    border-left: 3px solid var(--accent);
}

.event h4 {
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.affiliation {
    font-size: 0.85rem;
    color: var(--text-light);
    font-weight: 500;
}

.download-schedule {
    text-align: center;
    margin-top: 2rem;
}

/* Speakers Section */
.speakers {
    background: var(--white);
}

.speakers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.speaker-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    text-align: center;
    padding: 1rem;
}

.speaker-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.speaker-image {
    width: 100%;
    height: 180px;
    background: var(--neutral-bg);
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.speaker-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.speaker-card h3 {
    color: var(--primary);
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.affiliation {
    color: var(--text-light);
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.country {
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 1rem;
}

.btn-view-profile {
    background: transparent;
    border: 2px solid var(--accent);
    color: var(--accent);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.85rem;
    transition: all 0.3s ease;
}

.btn-view-profile:hover {
    background: var(--accent);
    color: var(--white);
}

/* Registration Section */
.registration {
    background: var(--neutral-bg);
}

.registration-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

@media (min-width: 1024px) {
    .registration-content {
        grid-template-columns: 1fr 400px;
    }
}

.fees-table {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

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

thead {
    background: var(--primary);
    color: var(--white);
}

th, td {
    padding: 1rem;
    text-align: left;
}

tbody tr {
    border-bottom: 1px solid var(--border-color);
}

tbody tr:hover {
    background: var(--neutral-bg);
}

tbody tr:last-child {
    border-bottom: none;
}

td:last-child {
    text-align: right;
    font-weight: 600;
    color: var(--accent);
}

.payment-info {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    height: fit-content;
}

.payment-info h3 {
    color: var(--primary);
    margin-bottom: 1rem;
}

.payment-box {
    background: var(--neutral-bg);
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1rem;
    border-left: 3px solid var(--accent);
}

.payment-note {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 0.5rem;
}

.qr-section {
    text-align: center;
    margin: 1.5rem 0;
}

.qr-code {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
}

.accommodation-note {
    background: linear-gradient(135deg, rgba(15, 163, 163, 0.1) 0%, rgba(15, 163, 163, 0.05) 100%);
    padding: 0.75rem;
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--primary);
}

.accommodation-note i {
    color: var(--accent);
    margin-right: 0.5rem;
}

.register-form-section {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.register-form-section h3 {
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.register-form-section > p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

/* Forms */
.registration-form, .contact-form {
    display: grid;
    gap: 1.5rem;
}

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

.form-group label {
    margin-bottom: 0.5rem;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem;
    border: 1.5px solid var(--border-color);
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(15, 163, 163, 0.1);
}

.form-note {
    text-align: center;
    color: var(--text-light);
    font-size: 0.9rem;
    margin-top: 1rem;
}

.contact-form-wrapper {
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.contact-form textarea {
    resize: vertical;
    min-height: 120px;
}

/* Committee Section */
.committee {
    background: var(--white);
}

.primary-contacts {
    margin-bottom: 2rem;
}

.primary-contacts h3 {
    color: var(--primary);
    margin-bottom: 1.5rem;
    text-align: center;
}

.contacts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.contact-card {
    background: var(--neutral-bg);
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all 0.3s ease;
}

.contact-card:hover {
    box-shadow: var(--shadow-md);
}

.contact-card h4 {
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.role {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.phone {
    font-weight: 600;
    color: var(--accent);
}

.phone a {
    color: var(--accent);
    text-decoration: none;
}

.email-contact {
    text-align: center;
    background: var(--neutral-bg);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.email-contact h3 {
    color: var(--primary);
    margin-bottom: 1rem;
}

.email-contact a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
}

/* Contact Section */
.contact {
    background: var(--neutral-bg);
}

/* Footer */
.footer {
    background: var(--primary);
    color: var(--white);
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.9rem;
    display: block;
    padding: 0.5rem 0;
    transition: color 0.3s ease;
}

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

.footer-section p {
    font-size: 0.9rem;
    line-height: 1.8;
    opacity: 0.9;
}

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.85rem;
    opacity: 0.8;
}

/* Responsive */
@media (max-width: 768px) {
    section {
        padding: 2rem 0;
    }

    .hero {
        padding: 2.5rem 1.25rem;
    }

    .hero-meta {
        grid-template-columns: 1fr;
    }

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

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

    table {
        font-size: 0.85rem;
    }

    th, td {
        padding: 0.75rem 0.5rem;
    }

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

    .payment-info {
        order: -1;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    section h2 {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }

    .hero-title {
        font-size: 1.4rem;
    }

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

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

    .cfp-details {
        grid-template-columns: 1fr;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
    }

    .schedule-tabs {
        gap: 0.5rem;
    }

    .tab-btn {
        padding: 0.6rem 1rem;
        font-size: 0.8rem;
    }
}

/* About — overrides (paste after your existing section rules) */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 2.25rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2.5rem 0;
}

.about-media {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: linear-gradient(180deg, rgba(11,43,74,0.03), transparent);
}

.about-media img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  min-height: 260px;
  transform-origin: center;
  transition: transform 300ms ease;
}

@media (hover: hover) and (min-width: 769px) {
  .about-media:hover img {
    transform: scale(1.03);
  }
}

.about-card {
  background: var(--white);
  border-radius: 12px;
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.about-card h2 {
  color: var(--primary);
  margin-bottom: 0.5rem;
  font-size: 1.6rem;
  letter-spacing: -0.2px;
}

.about-card .lead {
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.about-card p {
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 0.9rem;
}

/* highlights — reuse badge-like appearance */
.highlights {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 0.5rem 1rem;
  list-style: none;
  margin: 0.75rem 0 1rem;
  padding: 0;
  color: var(--text-dark);
}

.highlights li {
  background: linear-gradient(90deg, rgba(15,163,163,0.03), transparent);
  padding: 0.55rem 0.75rem;
  border-radius: 8px;
  border-left: 3px solid rgba(15,163,163,0.16);
  font-size: 0.95rem;
}

.about-cta {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.75rem;
  flex-wrap: wrap;
}

/* Responsive adjustments */
@media (max-width: 980px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
    padding: 1.5rem 0;
  }

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

  .about-media img {
    min-height: 200px;
  }
}

@media (max-width: 480px) {
  .highlights {
    grid-template-columns: 1fr;
  }

  .about-card {
    padding: 1.25rem;
  }

  .about-card h2 { font-size: 1.3rem; }
}



/* Two-column About Department Section matching About College design */

.dept-two-col {
  background: var(--neutral-bg);
  padding: 2.5rem 0;
}

/* Card style same as About College */
.dept-card-2col {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 1.75rem;
  background: var(--white);
  border-radius: 12px;
  padding: 1.75rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  max-width: 1100px;
  margin: 0 auto;
}

/* Text same size & font as About College */
.dept-card-2col p {
  color: var(--text-light);
  line-height: 1.8;
  font-size: 1rem;
  margin-bottom: 1rem;
  font-family: 'Inter', sans-serif;
  text-align: justify;
}

/* Image box (similar style to about image) */
.dept-img {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 10px; /* reduces overall visible size */
}

.dept-img img {
  width: 90%;        /* ⭐ reduced size (you can change 90% → 85% / 80%) */
  height: auto;
  object-fit: contain;
  display: block;
  border-radius: 12px;
}

/* Responsive for smaller screens */
@media (max-width: 768px) {
  .dept-card-2col {
    grid-template-columns: 1fr;
    padding: 1.35rem;
  }

  .dept-img img {
    width: 85%;      /* slightly smaller on mobile */
    margin: 0 auto;
  }
}




/* ============================
   About the Conference Section
   ============================ */

.about-conference {
  background: var(--neutral-bg);
  padding: 2.5rem 0;
}

.conf-card {
  background: var(--white);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);

  display: grid;
  grid-template-columns: 1fr 350px;
  gap: 2rem;
  align-items: start;

  max-width: 1100px;
  margin: 0 auto;
}

.conf-text h2 {
  color: var(--primary);
  margin-bottom: 1rem;
  font-size: clamp(1.6rem, 4vw, 2.1rem);
}

.conf-text .intro {
  color: var(--text-light);
  line-height: 1.8;
  font-size: 1rem;
  margin-bottom: 1.5rem;
  text-align: justify;
}

.conf-text .subheading {
  color: var(--primary);
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
  font-weight: 700;
}

.conf-list {
  list-style: none;
  padding-left: 0;
  display: grid;
  gap: 0.75rem;
}

.conf-list li {
  color: var(--text-light);
  line-height: 1.65;
  position: relative;
  padding-left: 1.4rem;
  font-size: 1rem;
}

.conf-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
  font-weight: 700;
}
.conf-image {
  width: 100%;
  display: flex;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.conf-image img {
  max-width: 100%;
  height: auto;         /* ensures full image is visible */
  object-fit: contain;  /* shows entire image without cropping */
  border-radius: 12px;  /* optional */
}


/* Responsive */
@media (max-width: 900px) {
  .conf-card {
    grid-template-columns: 1fr;
    padding: 1.5rem;
  }

  .conf-image img {
    max-height: 260px;
  }
}








/* ====== Modern CFP Section (based on screenshot) ====== */

.cfp-modern {
  background: var(--neutral-bg);
  padding: 3rem 0;
}

.cfp-title {
  text-align: center;
  color: var(--primary);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  margin-bottom: 0.5rem;
}

.cfp-subtitle {
  text-align: center;
  color: var(--text-light);
  margin-bottom: 2rem;
  font-size: 1rem;
}

/* Two-column layout */
.cfp-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

.cfp-left h3,
.cfp-right h3 {
  color: var(--primary);
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.cfp-objectives {
  list-style: none;
  padding-left: 0;
  display: grid;
  gap: 1rem;
}

.cfp-objectives li {
  color: var(--text-light);
  line-height: 1.6;
  position: relative;
  padding-left: 1.5rem;
  font-size: 1rem;
}

.cfp-objectives li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
  font-weight: 600;
}

/* Topic Pill Buttons */
.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.7rem;
}

.topic-pill {
  background: rgba(15, 163, 163, 0.12);
  border: 1px solid rgba(15, 163, 163, 0.22);
  padding: 0.5rem 0.9rem;
  border-radius: 8px;
  font-size: 0.95rem;
  color: var(--primary);
  font-weight: 500;
  text-align: center;
}

/* Submission Box */
.cfp-submission-box {
  background: var(--white);
  padding: 1.7rem;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  max-width: 1100px;
  margin: 0 auto;
}

.cfp-sub-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.cfp-sub-row h4 {
  margin-bottom: 0.4rem;
  color: var(--primary);
}

.cfp-sub-row p {
  color: var(--text-light);
  line-height: 1.6;
}

/* Responsive */
@media (max-width: 768px) {
  .cfp-grid {
    grid-template-columns: 1fr;
  }
}





/* Speakers — Full photo visible, clean responsive layout */
.speakers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.speaker-card {
  background: var(--white);
  border-radius: 12px;
  padding: 1rem;
  text-align: center;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: .3s ease;
}

.speaker-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

/* Full image visible — NO CROPPING */
.speaker-image {
  width: 100%;
  aspect-ratio: 4/5;        /* Perfect portrait ratio */
  background: var(--neutral-bg);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px;             /* small padding to avoid edge clipping */
}

.speaker-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;      /* FULL IMAGE VISIBLE */
  border-radius: 10px;
}

.speaker-card h3 {
  margin-top: 0.6rem;
  color: var(--primary);
}

.affiliation {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 0.4rem;
}

.country {
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.6rem;
}



/* Styled schedule (three-column cards) */
.styled-schedule { background: var(--neutral-bg); padding: 2.5rem 0; }

.schedule-banner {
  max-width: 1100px;
  margin: 0 auto 1rem;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.schedule-banner img { width:100%; display:block; object-fit:cover; height:140px; }

/* heading */
.schedule-heading {
  text-align: center;
  color: var(--primary);
  margin: 0.6rem 0 1.2rem;
  font-size: clamp(1.5rem, 3.2vw, 2rem);
}

/* card grid */
.schedule-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  max-width: 1100px;
  margin: 0 auto;
}

/* individual card */
.schedule-card {
  background: var(--white);
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

/* header strip */
.card-head {
  background: var(--primary);
  color: #fff;
  padding: 0.75rem 1rem;
  font-weight: 700;
  border-top-left-radius: 10px;
  border-top-right-radius: 10px;
  font-size: 1rem;
}

/* body */
.card-body {
  padding: 1rem;
}

/* each event row */
.event-row {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  padding: 0.55rem 0;
  border-bottom: 1px solid rgba(11,43,74,0.03);
}

/* time column */
.event-time {
  flex: 0 0 110px;
  color: var(--accent);
  font-weight: 700;
  font-size: 0.92rem;
  position: relative;
  padding-left: 0.4rem;
}

/* small vertical accent line to the left of title */
.event-desc {
  flex: 1;
  position: relative;
  padding-left: 0.8rem;
}
.event-desc::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 3px;
  background: linear-gradient(180deg, var(--accent), rgba(15,163,163,0.6));
  border-radius: 2px;
}

/* event title and meta */
.event-title { color: var(--text-dark); font-weight: 600; margin-bottom: 4px; font-size: 0.98rem; }
.event-meta { color: var(--text-light); font-size: 0.88rem; }

/* tidy last item spacing */
.card-body .event-row:last-child { border-bottom: none; padding-bottom: 0; }

/* responsive */
@media (max-width: 980px) {
  .schedule-cards { grid-template-columns: repeat(2, 1fr); }
  .event-time { flex-basis: 95px; font-size: 0.88rem; }
}

@media (max-width: 640px) {
  .schedule-banner img { height:120px; }
  .schedule-cards { grid-template-columns: 1fr; }
  .event-row { gap: 0.5rem; }
  .event-time { flex-basis: 100px; font-size: 0.86rem; }
  .card-body { padding: 0.9rem; }
}



/* Organising Committee — rounded photo cards, responsive grid */
.committee-grid-section { background: var(--neutral-bg); padding: 2rem 0; }

.committee-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  max-width: 1100px;
  margin: 0 auto;
  align-items: start;
}

.committee-card {
  background: var(--white);
  border-radius: 12px;
  padding: 0.9rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: transform .25s ease, box-shadow .25s ease;
}

.committee-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.committee-photo {
  width: 96px;
  height: 96px;
  margin: 0 auto 0.6rem;
  border-radius: 50%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 4px solid rgba(11,43,74,0.06);
  background: linear-gradient(180deg, rgba(11,43,74,0.03), rgba(255,255,255,0.02));
}

.committee-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* text */
.committee-info .name {
  font-weight: 700;
  color: var(--primary);
  font-size: 0.98rem;
  margin-bottom: 0.2rem;
}

.committee-info .role {
  font-size: 0.85rem;
  color: var(--text-light);
}

/* small screens: tighter spacing */
@media (max-width: 480px) {
  .committee-photo { width: 80px; height: 80px; }
  .committee-card { padding: 0.7rem; }
  .committee-grid { gap: 0.75rem; }
}








.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    overflow: hidden;
    padding: 0 1.25rem;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(5, 15, 30, 0.55);
    backdrop-filter: blur(2px);
    z-index: -1;
}

.hero-content {
    position: relative;
    z-index: 5;
}




.footer-logo {
    width: 90px;        /* adjust size as needed */
    margin-bottom: 10px;
    display: block;
}