/* ============================================
   ICGG - International Conference in Gas Geochemistry
   Tech Blue Theme Stylesheet
   ============================================ */

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --blue-dark: #0d2b4e;
    --blue-primary: #1a5276;
    --blue-medium: #2980b9;
    --blue-light: #3498db;
    --blue-accent: #5dade2;
    --blue-bg: #eaf2f8;
    --blue-bg-light: #f4f9fd;
    --white: #ffffff;
    --gray-light: #f8f9fa;
    --gray-medium: #bdc3c7;
    --gray-dark: #34495e;
    --text-dark: #1c2833;
    --text-gray: #5d6d7e;
    --shadow: 0 4px 20px rgba(13, 43, 78, 0.12);
    --shadow-hover: 0 8px 30px rgba(13, 43, 78, 0.2);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-dark);
    background: var(--blue-bg-light);
    line-height: 1.7;
    font-size: 16px;
}

a {
    text-decoration: none;
    color: var(--blue-medium);
    transition: var(--transition);
}

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

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================
   Header & Navigation
   ============================================ */
.header {
    background: #0b2545;
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.header-inner {
    padding: 15px 0 0;
}

.header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 30px;
}

/* Left: Brand */
.header-brand {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
}

.header-logo-circle {
    width: 88px;
    height: 88px;
   
   
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
    
}

.header-logo-circle img {
    width: 66px;
    height: 66px;
    object-fit: contain;
}

.header-title h1 {
    font-size: 20px;
    font-weight: 600;
    color: #fff;
    line-height: 1.25;
    letter-spacing: 0.5px;
    margin: 0;
}

.header-title p {
    font-size: 13px;
    color: rgba(255,255,255,0.6);
    margin: 4px 0 0;
}

/* Right: Actions + Nav */
.header-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.action-link {
    color: rgba(255,255,255,0.75);
    font-size: 13px;
    transition: 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    text-decoration: none;
}

.action-link:hover,
.action-link.active {
    color: #fff;
}

.action-divider {
    color: rgba(255,255,255,0.3);
    font-size: 13px;
}

.action-icon {
    font-size: 14px;
}

/* Navigation */
.header-nav {
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    gap: 0;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-menu li a {
    display: block;
    padding: 10px 10px 12px;
    color: rgba(255,255,255,0.85);
    font-size: 14px;
    font-weight: 500;
    transition: 0.3s;
    border-bottom: 3px solid transparent;
    text-decoration: none;
}

.nav-menu li a:hover {
    color: #fff;
    border-bottom-color: rgba(255,255,255,0.3);
}

.nav-menu li a.active {
    color: #fff;
    border-bottom-color: #2980b9;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.mobile-toggle span {
    width: 25px;
    height: 3px;
    background: #fff;
    border-radius: 2px;
    transition: 0.3s;
}

/* Responsive */
@media (max-width: 992px) {
    .header-title h1 {
        font-size: 17px;
    }
    .nav-menu li a {
        padding: 10px 12px 12px;
        font-size: 13px;
    }
}

@media (max-width: 768px) {
    .header-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    .header-right {
        width: 100%;
        align-items: flex-start;
    }
    .header-actions {
        display: none;
    }
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #0b2545;
        flex-direction: column;
        padding: 10px 0;
        box-shadow: 0 5px 15px rgba(0,0,0,0.3);
        z-index: 100;
    }
    .nav-menu.active {
        display: flex;
    }
    .header-nav {
        width: 100%;
        justify-content: space-between;
    }
    .mobile-toggle {
        display: flex;
    }
    .nav-menu li a {
        border-bottom: 1px solid rgba(255,255,255,0.08);
        padding: 12px 20px;
    }
    .header-title h1 {
        font-size: 16px;
    }
    .header-logo-circle {
        width: 52px;
        height: 52px;
    }
    .header-logo-circle img {
        width: 36px;
        height: 36px;
    }
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.mobile-toggle span {
    width: 25px;
    height: 3px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

/* ============================================
   Hero Carousel (Homepage)
   ============================================ */
.hero-carousel {
    position: relative;
    width: 100%;
    height: 520px;
    overflow: hidden;
    background: var(--blue-dark);
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.carousel-slide.active {
    opacity: 1;
}

.carousel-slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(13, 43, 78, 0.55) 0%, rgba(26, 82, 118, 0.45) 100%);
    z-index: 1;
}

.carousel-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--white);
    max-width: 800px;
    padding: 0 20px;
}

.carousel-content h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
    line-height: 1.3;
}

.carousel-content p {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.95;
}

.carousel-btn {
    display: inline-block;
    padding: 14px 40px;
    background: var(--blue-light);
    color: var(--white);
    font-size: 16px;
    font-weight: 600;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 2px solid transparent;
}

.carousel-btn:hover {
    background: transparent;
    border-color: var(--white);
    color: var(--white);
    transform: translateY(-2px);
}

/* Carousel controls */
.carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: 50px;
    height: 50px;
    background: rgba(255,255,255,0.15);
    border: none;
    color: var(--white);
    font-size: 24px;
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.carousel-arrow:hover {
    background: rgba(255,255,255,0.3);
}

.carousel-arrow.prev { left: 30px; }
.carousel-arrow.next { right: 30px; }

.carousel-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    gap: 10px;
}

.carousel-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.carousel-dot.active {
    background: var(--white);
    width: 35px;
    border-radius: 6px;
}

/* Countdown */
.countdown-bar {
    background: var(--blue-primary);
    color: var(--white);
    padding: 20px 0;
    text-align: center;
}

.countdown-bar h3 {
    font-size: 18px;
    margin-bottom: 10px;
    font-weight: 400;
}

.countdown-timer {
    display: flex;
    justify-content: center;
    gap: 30px;
}

.countdown-item {
    text-align: center;
}

.countdown-item .number {
    font-size: 36px;
    font-weight: 700;
    display: block;
}

.countdown-item .label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.8;
}/* ============================================
   Article Content (About Page)
   ============================================ */
.article-content {
    max-width: 860px;
    margin: 0 auto;
    background: var(--white);
    border-radius: 14px;
    padding: 45px 55px;
    box-shadow: var(--shadow);
}

.article-content h2 {
    font-size: 28px;
    color: var(--blue-dark);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 3px solid var(--blue-light);
}

.article-content h3 {
    font-size: 20px;
    color: var(--blue-dark);
    margin: 30px 0 15px;
}

.article-content p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.9;
    margin-bottom: 18px;
    text-align: justify;
}

.article-list {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 30px;
}

.article-list li {
    font-size: 14px;
    color: var(--text-gray);
    padding: 8px 0 8px 24px;
    position: relative;
    line-height: 1.5;
}

.article-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 14px;
    width: 8px;
    height: 8px;
    background: var(--blue-primary);
    border-radius: 50%;
}

.article-cta {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 35px;
    padding-top: 25px;
    border-top: 1px solid var(--blue-bg);
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .article-content {
        padding: 25px 20px;
    }
    .article-content h2 {
        font-size: 22px;
    }
    .article-list {
        grid-template-columns: 1fr;
    }
}
/* ============================================
   Timeline (Origin Page)
   ============================================ */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 12px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--blue-light), var(--blue-primary));
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: 35px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -34px;
    top: 6px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--white);
    border: 4px solid var(--blue-primary);
    box-shadow: 0 0 0 4px rgba(52,152,219,0.2);
}

.timeline-content {
    background: var(--white);
    border-radius: 10px;
    padding: 22px 25px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.timeline-content:hover {
    box-shadow: var(--shadow-hover);
    transform: translateX(5px);
}

.timeline-year {
    display: inline-block;
    background: var(--blue-primary);
    color: var(--white);
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 10px;
}

.timeline-content h3 {
    font-size: 18px;
    color: var(--blue-dark);
    margin-bottom: 8px;
}

.timeline-content p {
    color: var(--text-gray);
    line-height: 1.7;
    font-size: 14px;
}

/* ============================================
   Section Common Styles
   ============================================ */
.section {
    padding: 70px 0;
}

.section-alt {
    background: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 32px;
    color: var(--blue-dark);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--blue-light);
    border-radius: 2px;
}

.section-header p {
    color: var(--text-gray);
    font-size: 16px;
    max-width: 700px;
    margin: 20px auto 0;
}

/* ============================================
   About Section (Text + Image + Stats)
   ============================================ */
.about-layout {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 50px;
    align-items: start;
}

.about-text h2 {
    font-size: 32px;
    color: var(--blue-dark);
    margin-bottom: 8px;
}

.about-text h3 {
    font-size: 18px;
    color: var(--blue-primary);
    margin-bottom: 25px;
    font-weight: 600;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--blue-bg);
}

.about-text p {
    color: var(--text-gray);
    margin-bottom: 16px;
    line-height: 1.85;
    font-size: 15px;
}

.about-text p strong {
    color: var(--blue-dark);
    font-weight: 700;
}

.about-lead {
    font-size: 16px !important;
    color: var(--text-dark) !important;
    line-height: 1.9 !important;
    padding-left: 18px;
    border-left: 4px solid var(--blue-light);
    margin-bottom: 22px !important;
    font-style: italic;
}

.about-side {
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: sticky;
    top: 120px;
}

.about-image {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.about-image img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    display: block;
}

.about-image-placeholder {
    width: 100%;
    height: 280px;
    background: linear-gradient(135deg, var(--blue-bg), var(--blue-accent));
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--blue-primary);
    gap: 10px;
}

.about-image-placeholder span {
    font-size: 50px;
}

.about-image-placeholder p {
    font-size: 14px;
    opacity: 0.7;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.about-stat {
    background: linear-gradient(135deg, var(--blue-primary), var(--blue-medium));
    color: var(--white);
    border-radius: 10px;
    padding: 20px 15px;
    text-align: center;
    transition: var(--transition);
}

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

.about-stat .stat-num {
    display: block;
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 5px;
    line-height: 1;
}

.about-stat .stat-desc {
    display: block;
    font-size: 12px;
    opacity: 0.9;
    line-height: 1.4;
}

/* ============================================
   Quick Navigation (Partner Logo Wall)
   ============================================ */
.quick-nav {
    background: var(--blue-bg);
    padding: 40px 0;
}

.quick-nav-title {
    margin-bottom: 25px;
}

.quick-nav-title h2 {
    font-size: 20px;
    color: var(--blue-dark);
    font-weight: 600;
    padding-left: 10px;
    border-left: 4px solid var(--blue-light);
}

.quick-nav-wall {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
}

.quick-nav-logo {
    display: block;
    transition: var(--transition);
    background: var(--white);
    border: 1px solid #d6e4f0;
    border-radius: 4px;
    overflow: hidden;
}

.quick-nav-logo:hover {
    transform: translateY(-3px);
    border-color: var(--blue-light);
    box-shadow: 0 4px 12px rgba(26, 82, 118, 0.15);
}

.quick-nav-logo img {
    width: 100%;
    height: 85px;
    object-fit: contain;
    display: block;
    background: var(--white);
}

/* ============================================
   Page Banner (Inner Pages)
   ============================================ */
.page-banner {
    background: linear-gradient(135deg, var(--blue-dark) 0%, var(--blue-primary) 50%, var(--blue-medium) 100%);
    color: var(--white);
    padding: 60px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(circle at 15% 50%, rgba(255,255,255,0.06) 2px, transparent 2px),
        radial-gradient(circle at 85% 30%, rgba(255,255,255,0.05) 3px, transparent 3px);
    background-size: 150px 150px, 200px 200px;
}

.page-banner .container {
    position: relative;
    z-index: 1;
}

.page-banner h1 {
    font-size: 38px;
    margin-bottom: 10px;
    font-weight: 700;
}

.page-banner .breadcrumb {
    font-size: 14px;
    opacity: 0.85;
}

.page-banner .breadcrumb a {
    color: var(--blue-accent);
}

.page-banner .breadcrumb span {
    margin: 0 8px;
}

/* ============================================
   Conference Agenda
   ============================================ */
.agenda-tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.agenda-tab {
    padding: 12px 30px;
    background: var(--white);
    border: 2px solid var(--blue-medium);
    color: var(--blue-medium);
    font-size: 15px;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
}

.agenda-tab:hover,
.agenda-tab.active {
    background: var(--blue-primary);
    border-color: var(--blue-primary);
    color: var(--white);
}

.agenda-content {
    display: none;
}

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

.agenda-day-header {
    background: var(--blue-primary);
    color: var(--white);
    padding: 15px 25px;
    border-radius: 8px 8px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.agenda-day-header h3 {
    font-size: 20px;
}

.agenda-day-header .date {
    font-size: 14px;
    opacity: 0.9;
}

.agenda-schedule {
    background: var(--white);
    border-radius: 0 0 8px 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.agenda-item {
    display: grid;
    grid-template-columns: 150px 1fr 150px;
    padding: 20px 25px;
    border-bottom: 1px solid var(--blue-bg);
    align-items: center;
    transition: var(--transition);
}

.agenda-item:hover {
    background: var(--blue-bg-light);
}

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

.agenda-time {
    font-weight: 700;
    color: var(--blue-primary);
    font-size: 15px;
}

.agenda-title {
    font-weight: 600;
    color: var(--text-dark);
}

.agenda-title small {
    display: block;
    color: var(--text-gray);
    font-weight: 400;
    margin-top: 3px;
    font-size: 13px;
}

.agenda-location {
    text-align: right;
    font-size: 13px;
    color: var(--text-gray);
}

.agenda-item.break {
    background: var(--blue-bg);
}

.agenda-item.break .agenda-title {
    color: var(--blue-medium);
    font-style: italic;
}

/* ============================================
   Abstracts Page
   ============================================ */
.abstracts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 50px;
}

.abstract-box {
    background: var(--white);
    padding: 35px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.abstract-box h3 {
    font-size: 22px;
    color: var(--blue-dark);
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--blue-bg);
}

.abstract-box ul li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
    color: var(--text-gray);
}

.abstract-box ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--blue-light);
    font-weight: 700;
}

.dates-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.dates-table th {
    background: var(--blue-primary);
    color: var(--white);
    padding: 15px 20px;
    text-align: left;
    font-size: 15px;
}

.dates-table td {
    padding: 15px 20px;
    border-bottom: 1px solid var(--blue-bg);
    color: var(--text-gray);
}

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

.dates-table tr:hover td {
    background: var(--blue-bg-light);
}

.abstract-form {
    background: var(--white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-top: 40px;
}

.abstract-form h3 {
    font-size: 22px;
    color: var(--blue-dark);
    margin-bottom: 25px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-dark);
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1.5px solid var(--gray-medium);
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--blue-light);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.15);
}

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

.btn-submit {
    background: var(--blue-primary);
    color: var(--white);
    padding: 14px 40px;
    border: none;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-submit:hover {
    background: var(--blue-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

/* ============================================
   Scientific Topics
   ============================================ */
.topics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}

.topic-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
}

.topic-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.topic-header {
    background: linear-gradient(135deg, var(--blue-primary), var(--blue-medium));
    color: var(--white);
    padding: 20px 25px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.topic-icon {
    width: 50px;
    height: 50px;
    background: rgba(255,255,255,0.2);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.topic-header h3 {
    font-size: 17px;
    font-weight: 600;
}

.topic-body {
    padding: 20px 25px;
}

.topic-body p {
    color: var(--text-gray);
    font-size: 14px;
    margin-bottom: 10px;
}

.topic-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 15px;
}

.topic-tag {
    background: var(--blue-bg);
    color: var(--blue-primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

/* ============================================
   Accommodation
   ============================================ */
.hotel-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
    margin-bottom: 50px;
}

.hotel-card {
    display: grid;
    grid-template-columns: 280px 1fr;
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.hotel-image {
    background: linear-gradient(135deg, var(--blue-medium), var(--blue-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 50px;
    min-height: 200px;
}

.hotel-info {
    padding: 25px 30px;
}

.hotel-info h3 {
    font-size: 20px;
    color: var(--blue-dark);
    margin-bottom: 8px;
}

.hotel-rating {
    color: #f39c12;
    margin-bottom: 10px;
    font-size: 16px;
}

.hotel-details {
    display: flex;
    gap: 20px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.hotel-detail {
    font-size: 14px;
    color: var(--text-gray);
}

.hotel-detail strong {
    color: var(--blue-primary);
}

.hotel-info p {
    color: var(--text-gray);
    font-size: 14px;
    margin-bottom: 15px;
}

.hotel-price {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.price {
    font-size: 22px;
    font-weight: 700;
    color: var(--blue-primary);
}

.price small {
    font-size: 13px;
    font-weight: 400;
    color: var(--text-gray);
}

.btn-book {
    padding: 10px 25px;
    background: var(--blue-primary);
    color: var(--white);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
}

.btn-book:hover {
    background: var(--blue-dark);
    color: var(--white);
}

.venue-section {
    background: var(--white);
    border-radius: 12px;
    padding: 40px;
    box-shadow: var(--shadow);
    margin-bottom: 40px;
}

.venue-section h3 {
    font-size: 22px;
    color: var(--blue-dark);
    margin-bottom: 20px;
}

.venue-map {
    background: var(--blue-bg);
    height: 250px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blue-primary);
    font-size: 18px;
    margin-bottom: 20px;
    border: 2px dashed var(--blue-accent);
}

.venue-info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.venue-info-item h4 {
    color: var(--blue-primary);
    margin-bottom: 8px;
    font-size: 16px;
}

.venue-info-item p {
    color: var(--text-gray);
    font-size: 14px;
}

/* ============================================
   Committees
   ============================================ */
.committee-section {
    margin-bottom: 50px;
}

.committee-section h3 {
    font-size: 24px;
    color: var(--blue-dark);
    margin-bottom: 25px;
    padding-left: 15px;
    border-left: 4px solid var(--blue-light);
}

/* 人员列表：4列卡片网格 */
.committee-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}

/* 单张卡片：上下结构，居中 */
.committee-member {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    background: #fff;
    border-radius: 14px;
    padding: 28px 20px 22px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    transition: 0.3s;
    border-top: 3px solid #5dade2;
}

.committee-member:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
    border-top-color: #3498db;
}

/* 头像：放大，圆形，居中在上 */
.member-avatar {
    width: 150px;
    height: 150px;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 26px;
    margin-bottom: 15px;
    flex-shrink: 0;
    border: 3px solid #fff;
    box-shadow: 0 4px 12px rgba(52,152,219,0.25);
}
.member-avatar img{ height:150px}
/* 文字信息：居中 */
.member-info {
    width: 100%;
}

.member-info h4 {
    font-size: 15px;
    color: #0b2545;
    margin-bottom: 6px;
    font-weight: 700;
}

.member-info p {
    font-size: 12px;
    color: #666;
    line-height: 1.5;
}

.member-email {
    display: inline-block;
    font-size: 11px;
    color: #2980b9;
    margin-top: 8px;
    word-break: break-all;
}

.member-email:hover {
    color: #0b2545;
    text-decoration: underline;
}

/* 响应式 */
@media (max-width: 992px) {
    .committee-list {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .committee-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    .member-avatar {
        width: 64px;
        height: 64px;
        font-size: 20px;
    }
}



/* ============================================
   Photo Gallery
   ============================================ */
.gallery-filters {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.gallery-filter {
    padding: 8px 24px;
    background: var(--white);
    border: 2px solid var(--blue-medium);
    color: var(--blue-medium);
    font-size: 14px;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
}

.gallery-filter:hover,
.gallery-filter.active {
    background: var(--blue-primary);
    border-color: var(--blue-primary);
    color: var(--white);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
}

.gallery-item {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 1;
    transition: var(--transition);
}

.gallery-item:hover {
    transform: scale(1.03);
}

.gallery-item .gallery-img {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 30px;
}

.gallery-item:nth-child(odd) .gallery-img {
    background: linear-gradient(135deg, var(--blue-primary), var(--blue-medium));
}

.gallery-item:nth-child(even) .gallery-img {
    background: linear-gradient(135deg, var(--blue-medium), var(--blue-accent));
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(13, 43, 78, 0.9));
    color: var(--white);
    padding: 30px 15px 15px;
    transform: translateY(100%);
    transition: var(--transition);
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-overlay h4 {
    font-size: 14px;
    margin-bottom: 3px;
}

.gallery-overlay p {
    font-size: 12px;
    opacity: 0.8;
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    max-width: 80%;
    max-height: 80%;
    text-align: center;
    color: var(--white);
}

.lightbox-content .lightbox-img {
    width: 600px;
    height: 400px;
    background: linear-gradient(135deg, var(--blue-primary), var(--blue-light));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
    margin-bottom: 20px;
}

.lightbox-close {
    position: absolute;
    top: 30px;
    right: 40px;
    color: var(--white);
    font-size: 40px;
    cursor: pointer;
    background: none;
    border: none;
}


/* ============================================
   Past Conferences Grid
   ============================================ */
.past-conf-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 15px;
}
.past-conf-card {
    background: var(--white);
    border-radius: 10px;
    padding: 22px 15px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-top: 3px solid var(--blue-light);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}
.past-conf-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-top-color: var(--blue-dark);
}
.past-conf-card.upcoming {
    border-top-color: #e67e22;
    background: linear-gradient(135deg, #fff8f0, var(--white));
}
.past-year {
    font-size: 26px;
    font-weight: 800;
    color: var(--blue-primary);
    line-height: 1;
}
.past-conf-card.upcoming .past-year {
    color: #e67e22;
}
.past-city {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-dark);
    margin-top: 6px;
}
.past-country {
    font-size: 12px;
    color: var(--text-gray);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}


/* ============================================
   Simple Page Templates (CMS-friendly)
   ============================================ */
.simple-page {
    max-width: 900px;
    margin: 0 auto;
}

.simple-intro {
    text-align: center;
    margin-bottom: 45px;
}

.simple-intro h2 {
    font-size: 32px;
    color: var(--blue-dark);
    margin-bottom: 15px;
}

.simple-intro p {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.8;
    max-width: 700px;
    margin: 0 auto 25px;
}

.btn-primary {
    display: inline-block;
    padding: 12px 35px;
    background: var(--blue-primary);
    color: var(--white);
    font-size: 15px;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition);
}

.btn-primary:hover {
    background: var(--blue-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.simple-block {
    background: var(--white);
    border-radius: 12px;
    padding: 30px 35px;
    margin-bottom: 25px;
    box-shadow: var(--shadow);
}

.simple-block h3 {
    font-size: 20px;
    color: var(--blue-dark);
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--blue-bg);
}

.simple-block p {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 10px;
}

.simple-block p strong {
    color: var(--blue-primary);
}

.simple-ul {
    list-style: none;
    padding: 0;
}

.simple-ul li {
    padding: 10px 0 10px 25px;
    position: relative;
    color: var(--text-gray);
    line-height: 1.7;
    border-bottom: 1px solid var(--blue-bg);
}

.simple-ul li:last-child {
    border-bottom: none;
}

.simple-ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 18px;
    width: 8px;
    height: 8px;
    background: var(--blue-light);
    border-radius: 50%;
}

.simple-ul li strong {
    color: var(--blue-primary);
}

.date-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.simple-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.simple-list-item {
    padding: 20px;
    background: var(--blue-bg-light);
    border-radius: 8px;
    border-left: 4px solid var(--blue-light);
    transition: var(--transition);
}

.simple-list-item:hover {
    border-left-color: var(--blue-primary);
    background: var(--blue-bg);
}

.simple-list-item h3,
.simple-list-item h4 {
    color: var(--blue-dark);
    margin-bottom: 8px;
    font-size: 17px;
}

.simple-list-item p {
    color: var(--text-gray);
    line-height: 1.7;
    font-size: 14px;
    margin: 0;
}

/* ============================================
   Gallery List (Vertical Card Grid)
   ============================================ */
.gallery-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.gallery-list > a {
    display: block;
    text-decoration: none;
    color: inherit;
}

.gallery-list-item {
    display: flex;
    flex-direction: column;
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    height: 100%;
}

.gallery-list > a:hover .gallery-list-item {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.gallery-list-img {
    overflow: hidden;
    aspect-ratio: 16 / 10;
}

.gallery-list-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: var(--transition);
}

.gallery-list > a:hover .gallery-list-img img {
    transform: scale(1.08);
}

.gallery-list-text {
    padding: 18px 20px;
    flex: 1;
    display: flex;
    align-items: center;
}

.gallery-list-text h3 {
    font-size: 16px;
    color: var(--blue-dark);
    margin: 0;
    line-height: 1.5;
    font-weight: 600;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}


/* ============================================
   Section Header (with view-all)
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: 45px;
    position: relative;
}

.section-header h2 {
    font-size: 30px;
    color: var(--blue-dark);
    margin-bottom: 12px;
}

.section-header p {
    font-size: 16px;
    color: var(--text-gray);
    max-width: 700px;
    margin: 0 auto;
}

.section-header .view-all {
    position: absolute;
    right: 0;
    top: 10px;
    font-size: 14px;
    font-weight: 600;
    color: var(--blue-medium);
}

.section-header .view-all:hover {
    color: var(--blue-dark);
}

/* ============================================
   Research Cards
   ============================================ */
.research-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}

.research-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.research-img {
    position: relative;
    height: 160px;
    overflow: hidden;
}

.research-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.research-card:hover .research-img img {
    transform: scale(1.08);
}

.research-icon {
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--blue-primary), var(--blue-medium));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: var(--white);
    box-shadow: 0 4px 12px rgba(26,82,118,0.3);
}

.research-body {
    padding: 20px 20px 22px;
    text-align: center;
}

.research-body h3 {
    font-size: 17px;
    color: var(--blue-dark);
    margin-bottom: 10px;height: 40px;
    line-height: 40px;
    overflow: hidden;
}

.research-body p {
    font-size: 13px;
    color: var(--text-gray);
    line-height: 1.6;
    margin-bottom: 12px;    height: 40px;
    line-height: 20px;
    overflow: hidden;
}

.research-link {
    font-size: 13px;
    font-weight: 600;
    color: var(--blue-medium);
}

.research-link:hover {
    color: var(--blue-dark);
}

/* ============================================
   News & Events Three Column
   ============================================ */
.news-events-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 30px;
}

.col-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--blue-primary);
}

.col-header h3 {
    font-size: 20px;
    color: var(--blue-dark);
}

.view-all {
    font-size: 13px;
    font-weight: 600;
    color: var(--blue-medium);
}

.view-all:hover {
    color: var(--blue-dark);
}

/* News list */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.news-item {
    display: flex;
    gap: 14px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--blue-bg);
}

.news-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.news-thumb {
    width: 70px;
    height: 70px;
    flex-shrink: 0;
    border-radius: 8px;
    overflow: hidden;
}

.news-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-info h4 {
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 6px;
}

.news-info h4 a {
    color: var(--text-dark);
    font-weight: 600;
}

.news-info h4 a:hover {
    color: var(--blue-primary);
}

.news-date {
    font-size: 12px;
    color: var(--text-gray);
}

/* Events list */
.events-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.event-item {
    display: flex;
    gap: 15px;
    align-items: flex-start;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--blue-bg);
}

.event-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.event-date {
    width: 60px;
    flex-shrink: 0;
    text-align: center;
    background: linear-gradient(135deg, var(--blue-primary), var(--blue-medium));
    color: var(--white);
    border-radius: 8px;
    padding: 8px 4px;
}

.event-month {
    display: block;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.event-day {
    display: block;
    font-size: 18px;
    font-weight: 800;
    line-height: 1.2;
}

.event-year {
    display: block;
    font-size: 10px;
    opacity: 0.8;
}

.event-info h4 {
    font-size: 14px;
    margin-bottom: 4px;
}

.event-info h4 a {
    color: var(--text-dark);
    font-weight: 600;
}

.event-info h4 a:hover {
    color: var(--blue-primary);
}

.event-info p {
    font-size: 12px;
    color: var(--text-gray);
    margin: 0;
}

/* Notice boxes */
.notice-col {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.notice-box {
    background: var(--white);
    border-radius: 12px;
    padding: 22px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--blue-primary);
}

.notice-box.secondary {
    border-left-color: #27ae60;
}

.notice-badge {
    font-size: 28px;
    margin-bottom: 10px;
}

.notice-box h4 {
    font-size: 16px;
    color: var(--blue-dark);
    margin-bottom: 8px;
}

.notice-box p {
    font-size: 13px;
    color: var(--text-gray);
    line-height: 1.6;
    margin-bottom: 14px;    height: 80px;
    overflow: hidden;
}

.btn-sm {
    padding: 8px 20px;
    font-size: 13px;
}

.btn-outline {
    display: inline-block;
    padding: 8px 20px;
    background: transparent;
    color: var(--blue-primary);
    border: 2px solid var(--blue-primary);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    transition: var(--transition);
}

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

/* ============================================
   Methods & Resources Grid
   ============================================ */
.methods-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.method-item {
    background: var(--white);
    border-radius: 12px;
    padding: 28px 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
}

.method-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.method-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 14px;
    background: linear-gradient(135deg, var(--blue-bg), var(--blue-accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--blue-primary);
    font-weight: 700;
}

.method-item h4 {
    font-size: 15px;
    color: var(--blue-dark);
    margin-bottom: 4px;
}

.method-item small {
    font-size: 11px;
    color: var(--text-gray);
    line-height: 1.4;
}

/* ============================================
   People Showcase
   ============================================ */
.people-scroll {
    overflow-x: auto;
    padding-bottom: 15px;
    -webkit-overflow-scrolling: touch;
}

.people-scroll::-webkit-scrollbar {
    height: 6px;
}

.people-scroll::-webkit-scrollbar-track {
    background: var(--blue-bg);
    border-radius: 3px;
}

.people-scroll::-webkit-scrollbar-thumb {
    background: var(--blue-light);
    border-radius: 3px;
}

.people-track {
    display: flex;
    gap: 22px;
    min-width: max-content;
}

.person-card {
    width: 220px;
    background: var(--white);
    border-radius: 12px;
    padding: 25px 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    flex-shrink: 0;
}

.person-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.person-avatar {
    width: 140px;
    height: 140px;
    margin: 0 auto 15px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--blue-bg);
}

.person-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.person-card h4 {
    font-size: 15px;
    color: var(--blue-dark);
    margin-bottom: 5px;
}

.person-affil {
    font-size: 12px;
    color: var(--blue-medium);
    font-weight: 600;
    margin-bottom: 8px;
}

.person-field {
    font-size: 12px;
    color: var(--text-gray);
    line-height: 1.5;
    margin: 0;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: #0b2545;
    color: #fff;
    padding: 45px 0 0;
}

.footer-main {
    display: grid;
    grid-template-columns: 1.5fr 1.5fr 1fr;
    gap: 50px;
    padding-bottom: 15px;
    align-items: start;
}

/* Column 1: Brand */
.footer-brand {
    display: flex;
    align-items: flex-start;
    gap: 18px;
}

.footer-logo-circle {
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
}

.footer-logo-circle img {
    width: 80px;
    height:80px;
    object-fit: contain;
}

.footer-brand-text h3 {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 8px;
    color: #fff;
}

.footer-brand-text p {
    font-size: 13px;
    color: rgba(255,255,255,0.6);
    margin: 0;
}

/* Column 2: Quick Links */
.footer-links h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 18px;
    color: #fff;
}

.footer-links-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 30px;
}

.footer-links-cols ul li a {
    color: rgba(255,255,255,0.7);
    font-size: 14px;
    transition: 0.3s;
}

.footer-links-cols ul li a:hover {
    color: #5dade2;
    padding-left: 4px;
}

/* Column 3: Contact */
.footer-contact h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 18px;
    color: #fff;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: rgba(255,255,255,0.75);
    margin-bottom: 12px;
    line-height: 1.5;
}

.contact-icon {
    font-size: 16px;
    flex-shrink: 0;
}

.footer-social {
    display: flex;
    gap: 10px;
    margin-top: 18px;
}

.social-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 15px;
    transition: 0.3s;
    text-decoration: none;
}

.social-btn:hover {
    background: #3498db;
    transform: translateY(-2px);
    color: #fff;
}

/* Footer bottom */
.footer-bottom {
    background: #081a30;
    padding: 15px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 12px;
    color: rgba(255,255,255,0.5);
    margin: 0;
}

/* Responsive */
@media (max-width: 992px) {
    .footer-main {
        grid-template-columns: 1fr 1fr;
    }
    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .footer-main {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .footer-links-cols {
        grid-template-columns: 1fr 1fr;
    }
}


/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 992px) {
    .about-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .about-side {
        position: static;
    }
    .about-content,
    .abstracts-grid {
        grid-template-columns: 1fr;
    }

    .quick-nav-wall {
        grid-template-columns: repeat(3, 1fr);
    }
    .brand-text h1 {
        font-size: 20px;
    }

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

    .hotel-card {
        grid-template-columns: 1fr;
    }

    .hotel-image {
        min-height: 150px;
    }

  
    
.footer-col {
    padding-top: 5px;
}

.footer-col h4 {
    font-size: 15px;
    margin-bottom: 18px;
    color: var(--white);
    font-weight: 600;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    color: rgba(255,255,255,0.7);
    font-size: 13px;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--blue-accent);
    padding-left: 4px;
}

.footer-contact p {
    font-size: 13px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 10px;
    line-height: 1.6;
}

.footer-newsletter p {
    font-size: 13px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 12px;
}

.footer-newsletter input {
    width: 100%;
    padding: 10px 14px;
    border: none;
    border-radius: 6px 0 0 6px;
    font-size: 13px;
    outline: none;
}

.footer-newsletter button {
    padding: 10px 18px;
    background: var(--blue-light);
    color: var(--white);
    border: none;
    border-radius: 0 6px 6px 0;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.footer-newsletter button:hover {
    background: var(--blue-accent);
}

.footer-newsletter-form {
    display: flex;
}

.footer-logo {
        justify-content: center;
    }
    .footer-badge {
        justify-content: center;
    }

    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .past-conf-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .venue-info-grid {
        grid-template-columns: 1fr;
    }
    .research-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .news-events-grid {
        grid-template-columns: 1fr;
    }
    .methods-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-main {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #2b2b2b;
        flex-direction: column;
        padding: 10px 0;
        box-shadow: 0 5px 15px rgba(0,0,0,0.3);
        z-index: 100;
    }
    .header-nav nav {
        position: relative;
    }
    .nav-menu li a {
        border-right: none;
        border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .brand-text h1 {
        font-size: 16px;
    }
    .brand-logo {
        height: 45px;
    }
    .about-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .about-side {
        position: static;
    }
    .about-image img,
    .about-image-placeholder {
        height: 220px;
    }
    .research-grid {
        grid-template-columns: 1fr;
    }
    .methods-grid {
        grid-template-columns: repeat(2, 1fr);
    }
   
    .section-header .view-all {
        position: static;
        display: inline-block;
        margin-top: 10px;
    }
    .about-lead {
        font-size: 15px !important;
    }

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

    .mobile-toggle {
        display: flex;
    }

    .carousel-content h2 {
        font-size: 28px;
    }

    .carousel-content p {
        font-size: 16px;
    }

    .hero-carousel {
        height: 400px;
    }

    .quick-nav-wall {
        grid-template-columns: repeat(2, 1fr);
    }

    .agenda-item {
        grid-template-columns: 1fr;
        gap: 5px;
    }

    .agenda-location {
        text-align: left;
    }

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

    .committee-member {
        grid-template-columns: 50px 1fr;
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .past-conf-grid {
        grid-template-columns: repeat(3, 1fr);
    }


    .gallery-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 18px;
    }
    .gallery-list-text {
        padding: 14px 16px;
    }
    .gallery-list-text h3 {
        font-size: 15px;
    }
    .simple-block {
        padding: 22px 20px;
    }
    .date-list li {
        flex-direction: column;
        align-items: flex-start;
    }
    .footer-main {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .countdown-timer {
        gap: 15px;
    }

    .countdown-item .number {
        font-size: 28px;
    }

    .page-banner h1 {
        font-size: 28px;
    }

}

@media (max-width: 480px) {
    .about-layout {
        gap: 20px;
    }
    .about-side {
        position: static;
    }
    .about-image img,
    .about-image-placeholder {
        height: 180px;
    }
    .about-stats {
        gap: 8px;
    }
    .about-stat {
        padding: 15px 10px;
    }
    .about-stat .stat-num {
        font-size: 22px;
    }
    .brand-text h1 {
        font-size: 14px;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }
    .past-conf-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .gallery-list {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    .methods-grid {
        grid-template-columns: 1fr;
    }
    .person-card {
        width: 180px;
    }
    .past-year {
        font-size: 20px;
    }

    .carousel-arrow {
        width: 40px;
        height: 40px;
        font-size: 18px;
    }

    .carousel-arrow.prev { left: 10px; }
    .carousel-arrow.next { right: 10px; }
}