/* Reset and Base Styles */
:root {
    /* Light mode colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f7fafc;
    --bg-tertiary: #edf2f7;
    --text-primary: #333;
    --text-secondary: #4a5568;
    --text-tertiary: #718096;
    --text-accent: #1a365d;
    --accent-primary: #3182ce;
    --accent-secondary: #63b3ed;
    --border-light: #e2e8f0;
    --border-medium: #cbd5e0;
    --shadow-light: rgba(0, 0, 0, 0.1);
    --shadow-medium: rgba(0, 0, 0, 0.15);
    --overlay: rgba(255, 255, 255, 0.95);
    --success: #38a169;
    --success-light: #68d391;
    --card-bg: #ffffff;
    --input-bg: #ffffff;
    --nav-bg: rgba(255, 255, 255, 0.95);
    --footer-bg: #1a365d;
    --hero-gradient-start: #f7fafc;
    --hero-gradient-end: #edf2f7;
}

/* Dark mode colors */
[data-theme="dark"] {
    --bg-primary: #1a202c;
    --bg-secondary: #2d3748;
    --bg-tertiary: #4a5568;
    --text-primary: #f7fafc;
    --text-secondary: #e2e8f0;
    --text-tertiary: #cbd5e0;
    --text-accent: #90cdf4;
    --accent-primary: #63b3ed;
    --accent-secondary: #90cdf4;
    --border-light: #4a5568;
    --border-medium: #718096;
    --shadow-light: rgba(0, 0, 0, 0.3);
    --shadow-medium: rgba(0, 0, 0, 0.4);
    --overlay: rgba(26, 32, 44, 0.95);
    --success: #68d391;
    --success-light: #9ae6b4;
    --card-bg: #2d3748;
    --input-bg: #4a5568;
    --nav-bg: rgba(26, 32, 44, 0.95);
    --footer-bg: #1a202c;
    --hero-gradient-start: #2d3748;
    --hero-gradient-end: #1a202c;
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-accent);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 2px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    min-width: 180px;
    text-align: center;
    margin: 0;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    box-shadow: 0 4px 15px rgba(49, 130, 206, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(49, 130, 206, 0.4);
}

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

.btn-secondary:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: #4a5568;
    border: 2px solid #e2e8f0;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-outline:hover {
    background: #f7fafc;
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    transform: translateY(-2px);
}

.btn-outline i {
    font-size: 0.9rem;
}

/* Navigation */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    height: 45px;
    width: 45px;
    border-radius: 8px;
    background: transparent;
}

.brand-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-accent);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-item {
    position: relative;
}

.nav-link {
    text-decoration: none;
    color: #4a5568;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
    padding: 0.5rem 0;
    display: block;
}

.nav-link:hover {
    color: var(--accent-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-primary);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* Dropdown Menu Styles */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    min-width: 220px;
    z-index: 1001;
    border: 1px solid #e2e8f0;
    list-style: none;
    padding: 0.5rem 0;
    margin: 0;
}

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

.dropdown-link {
    display: block;
    padding: 0.75rem 1.5rem;
    color: #4a5568;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    background: none;
}

.dropdown-link:hover {
    background: linear-gradient(135deg, #f8fafc, #edf2f7);
    color: var(--accent-primary);
    padding-left: 2rem;
}

.dropdown-link i {
    margin-right: 0.5rem;
    color: var(--accent-primary);
    font-size: 0.8rem;
}

/* Dropdown arrow indicator */
.nav-item:has(.dropdown-menu)>.nav-link::before {
    content: '';
    position: absolute;
    right: -12px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid #4a5568;
    transition: all 0.3s ease;
}

.nav-item:hover>.nav-link::before {
    border-top-color: var(--accent-primary);
    transform: translateY(-50%) rotate(180deg);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--accent-primary);
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(rgba(26, 32, 44, 0.8), rgba(26, 32, 44, 0.8)), url('photo/ancient_text.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    align-items: center;
    color: white;
}

.hero-content {
    display: flex;
    justify-content: center;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

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

.hero-title {
    font-size: 3.0rem;
    color: #ffffff;
    margin-bottom: 1rem;
    line-height: 1.1;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
    white-space: nowrap;
    font-display: block;
}

.first-letter-big {
    font-size: 2.75rem;
}

.hero-titlesub {
    font-size: 2rem;
    color: #f1f5f9;
    margin-bottom: 1.5rem;
    font-weight: 400;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
}

.hero-subtitle {
    font-size: 2rem;
    color: #f1f5f9;
    margin-bottom: 1.5rem;
    font-weight: bold;
    /* italic */
    /* font-style: italic; */
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
}

.hero-description {
    font-size: 1.2rem;
    color: #f8fafc;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
}

.hero-organizer {
    font-size: 1rem;
    color: #bfdbfe;
    margin-bottom: 2rem;
    font-weight: 500;
    font-style: italic;
    padding: 0.75rem 1rem;
    background: rgba(0, 0, 0, 0.4);
    border-left: 4px solid #bfdbfe;
    border-radius: 0 8px 8px 0;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.hero-info {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    justify-content: center;
    flex-wrap: wrap;
    font-size: 1.7rem;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #f1f5f9;
    font-weight: 500;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
}

.info-item i {
    color: #bfdbfe;
    font-size: 1.2rem;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    margin-top: 2rem;
}

/* Sections */
.section {
    padding: 80px 0;
}

.bg-light {
    background-color: #f7fafc;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 4rem;
}

.about-text p {
    font-size: 1.1rem;
    color: #4a5568;
    margin-bottom: 1.5rem;
    line-height: 1.8;
    text-align: justify;
}

/* 100 Years Image Float Style */
.years-image-float {
    height: 10rem;
    margin: 0 auto 1rem auto;
    display: block;
    transition: transform 0.3s ease;
}

.years-image-float:hover {
    transform: scale(1.05);
}

/* Clear float after the paragraph */
.clear-float {
    clear: both;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
}

.stat-item h3 {
    font-size: 2.5rem;
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
}

.stat-item p {
    color: #718096;
    font-weight: 500;
}

/* About Department and Institute Sections */
.about-department,
.about-institute {
    margin-bottom: 4rem;
}

.about-subtitle {
    font-size: 1.8rem;
    color: var(--text-accent);
    margin-bottom: 2rem;
    text-align: center;
}

.department-content,
.institute-content {
    max-width: 100%;
}

.department-content p,
.institute-content p {
    font-size: 1.1rem;
    color: #4a5568;
    margin-bottom: 1.5rem;
    line-height: 1.8;
    text-align: justify;
}

/* Institute Content Styling */
.institute-content {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    margin-top: 1.5rem;
}

.institute-text {
    flex: 1;
    width: 50%;
}

.institute-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    width: 50%;
}

.institute-img {
    width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease;
}

/* Institute Content Styling - Text Wrapping Around Centered Image */
.institute-content-wrapped {
    position: relative;
    text-align: justify;
}

.institute-image-center {
    float: none;
    display: block;
    width: 65%;
    margin: 0 auto 2rem auto;
    text-align: center;
}

.institute-img-wrapped {
    width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease;
}

.institute-img-wrapped:hover {
    transform: scale(1.02);
}

.institute-text-wrapped {
    width: 100%;
    margin-top: 1rem;
}

.institute-text-wrapped p {
    font-size: 1.1rem;
    color: #4a5568;
    line-height: 1.8;
    text-align: justify;
    margin: 0;
}

/* Alternative layout for smaller screens */
@media (max-width: 1200px) {
    .institute-image-center {
        width: 60%;
    }
}

@media (max-width: 768px) {
    .institute-image-center {
        width: 90%;
        margin-bottom: 1.5rem;
    }

    .institute-text-wrapped p {
        font-size: 1rem;
        text-align: left;
    }
}

/* Institute Header Row Layout */
.institute-header-row {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2rem;
    padding-right: 2rem;
}

.institute-image-left {
    flex: 0 0 55%;
    width: 55%;
}

.institute-title-right {
    flex: 0 0 45%;
    width: 45%;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}

.institute-img-row {
    width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease;
}

.institute-img-row:hover {
    transform: scale(1.02);
}

.institute-title-right .about-subtitle {
    margin: 0;
    text-align: center;
    line-height: 1.2;
}

/* Department Header Row Layout */
.department-header-row {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2rem;
    padding-right: 2rem;
}

.department-title-left {
    flex: 0 0 50%;
    width: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}

.department-image-right {
    flex: 0 0 50%;
    width: 50%;
}

.department-img-row {
    width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease;
}

.department-img-row:hover {
    transform: scale(1.02);
}

.department-title-left .about-subtitle {
    margin: 0;
    text-align: center;
    line-height: 1.2;
}

/* Responsive adjustments for department header */
@media (max-width: 1200px) {
    .department-header-row {
        flex-direction: column;
        text-align: center;
    }

    .department-title-left,
    .department-image-right {
        flex: none;
        width: 100%;
    }

    .department-title-left {
        min-height: auto;
        margin-bottom: 1rem;
    }
}

@media (max-width: 768px) {
    .department-header-row {
        gap: 1rem;
    }

    .department-title-left .about-subtitle {
        font-size: 1.5rem;
    }
}


.committee-subsection-title {
    font-size: 1.4rem;
    color: var(--text-accent);
    margin-bottom: 1.5rem;
    text-align: center;
    font-weight: 600;
    border-bottom: 2px solid var(--accent-primary);
    padding-bottom: 0.5rem;
    display: inline-block;
    width: 100%;
}

.committee-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.committee-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    margin: 5px;
    display: flex;
    flex-direction: column;
}

.committee-card:hover {
    transform: translateY(-5px);
}

.committee-photo {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 1rem auto;
    background: linear-gradient(135deg, #e2e8f0, #cbd5e0);
}

.committee-card h4 {
    color: var(--text-accent);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.role {
    color: var(--accent-primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.affiliation {
    color: #718096;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    flex-grow: 1;
}

/* New topic section styles */
.topic-section {
    margin-top: auto;
    padding-top: 1rem;
    border-top: 2px solid #e2e8f0;
}

.topic-label {
    color: var(--accent-primary);
    font-weight: 600;
    font-size: 0.9rem;
    display: block;
    margin-bottom: 0.5rem;
}

.topic-text {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-style: italic;
    line-height: 1.4;
    margin: 0;
    padding: 0.5rem;
    background: #f8fafc;
    border-radius: 8px;
    border-left: 3px solid var(--accent-primary);
}

.advisory-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
}

.advisory-item {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    color: #4a5568;
    margin: 5px;
}

/* Registration Section */
.pricing-container {
    margin-bottom: 2rem;
    /* Reduced from 4rem */
}

.pricing-note {
    text-align: center;
    color: #4a5568;
    font-style: italic;
    margin-bottom: 2rem;
    /* Reduced from 3rem */
    font-size: 0.9rem;
    background: #f7fafc;
    padding: 0.6rem;
    border-radius: 6px;
    border-left: 3px solid var(--accent-primary);
}

/* Participation Sections - Side by Side */
.participation-sections {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.participation-title {
    font-size: 1.3rem;
    color: var(--text-accent);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: linear-gradient(135deg, #f7fafc, #edf2f7);
    border-radius: 10px;
    border: 2px solid #e2e8f0;
}

.participation-title i {
    font-size: 1.2rem;
    color: var(--accent-primary);
}

.pricing-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Registration Form Container - Centered */
.registration-form-container {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
    /* Reduced from 3rem */
}

.registration-form {
    background: white;
    padding: 2rem;
    /* Reduced from 3rem */
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
    width: 100%;
    max-width: 700px;
    /* Reduced from 800px */
}

.registration-form h3 {
    text-align: center;
    color: var(--text-accent);
    margin-bottom: 1.5rem;
    /* Reduced from 2rem */
    font-size: 1.6rem;
    /* Reduced from 1.8rem */
}

/* Form Row Layout */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.2rem;
    /* Reduced from 1.5rem */
}

.form-group {
    margin-bottom: 0;
}

.selected-price {
    background: #f7fafc;
    padding: 1rem;
    /* Reduced from 1.5rem */
    border-radius: 8px;
    margin: 1.5rem 0;
    /* Reduced from 2rem 0 */
    text-align: center;
    border: 2px solid #e2e8f0;
}

.selected-price p {
    font-weight: 600;
    color: var(--text-accent);
    font-size: 1.1rem;
    margin: 0;
}

.registration-form .btn {
    width: 100%;
    padding: 12px;
    /* Reduced from 15px */
    font-size: 1rem;
    /* Reduced from 1.1rem */
    margin-top: 0.8rem;
    /* Reduced from 1rem */
}

/* Submission Section */
.submission-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.guidelines-list {
    list-style: none;
    margin-bottom: 2rem;
}

.sponsor-logo {
    width: auto;
    height: 5rem;
    object-fit: cover;
    background: #f7fafc;
    border-radius: 15px;
    transition: transform 0.3s ease;
}

.sponsor-logo:hover {
    transform: scale(1.02);
}

.sponsorship-info {
    text-align: center;
    background: white;
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.offline-card::before {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
}


.online-card::before {
    background: linear-gradient(135deg, #38a169, #68d391);
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.offline-card:hover {
    border-color: var(--accent-primary);
}

.online-card:hover {
    border-color: #38a169;
}

.pricing-card h5 {
    color: var(--text-accent);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    line-height: 1.3;
}

.price-amount {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    padding: 0.5rem 0;
}

.offline-card .price-amount {
    color: var(--accent-primary);
    background: linear-gradient(135deg, #ebf8ff, #bee3f8);
    border-radius: 8px;
}

.online-card .price-amount {
    color: #38a169;
    background: linear-gradient(135deg, #f0fff4, #c6f6d5);
    border-radius: 8px;
}

.price-description {
    color: #718096;
    font-size: 0.9rem;
    line-height: 1.4;
    margin: 0;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #4a5568;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.1);
}

/* Accordion Styles */
.accordion-container {
    margin: 0 auto 3rem;
}

.accordion-item {
    background: white;
    border-radius: 12px;
    margin-bottom: 1rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.accordion-header {
    padding: 1.2rem 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, #f8fafc, #edf2f7);
    border-bottom: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.accordion-header:hover {
    background: linear-gradient(135deg, #edf2f7, #e2e8f0);
}

.accordion-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-accent);
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
}

.accordion-title i {
    color: var(--accent-primary);
    font-size: 1rem;
}

.accordion-icon {
    color: var(--accent-primary);
    font-size: 0.9rem;
    transition: transform 0.3s ease;
}

.accordion-icon.rotated {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.accordion-content.active {
    max-height: 100%;
    /* Significantly increased from 800px to accommodate long content */
}

/* Compact Pricing Styles */
.pricing-grid-compact {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    padding: 1.5rem;
}

.registration-benefits h6 {
    color: var(--text-accent);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-align: center;
}

.benefits-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.benefits-list li {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: #4a5568;
    font-size: 0.85rem;
    font-weight: 500;
    padding: 0.4rem 0;
}

.benefits-hover-container:hover .registration-benefits {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.benefits-hover-container .registration-benefits::before {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 8px solid var(--accent-primary);
}

/* Ensure hover area includes the benefits box */
.benefits-hover-container:hover .registration-benefits,
.benefits-hover-container .registration-benefits:hover {
    opacity: 1;
    visibility: visible;
}

/* Create a hover bridge to prevent flickering */
.benefits-hover-container::after {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 0;
    right: 0;
    height: 10px;
    background: transparent;
    z-index: 999;
}

/* Dark mode styles for hover benefits */
[data-theme="dark"] .benefits-hover-trigger {
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
    border-color: var(--border-light);
    color: var(--accent-primary);
}

[data-theme="dark"] .benefits-hover-trigger:hover {
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    border-color: var(--accent-primary);
}

[data-theme="dark"] .benefits-hover-container .registration-benefits {
    background: var(--card-bg);
    border-color: var(--accent-primary);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .benefits-hover-container .registration-benefits::before {
    border-bottom-color: var(--accent-primary);
}

/* Dark mode specific styles */
[data-theme="dark"] .header {
    background: var(--nav-bg);
}

[data-theme="dark"] .nav-link {
    color: var(--text-secondary);
}

[data-theme="dark"] .nav-link:hover {
    color: var(--accent-primary);
}

[data-theme="dark"] .brand-text {
    color: var(--text-accent);
}

[data-theme="dark"] .hero {
    background: linear-gradient(rgba(26, 32, 44, 0.8), rgba(26, 32, 44, 0.8)), url('photo/ancient_text.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

[data-theme="dark"] .hero-title {
    color: var(--text-accent);
}

[data-theme="dark"] .hero-subtitle {
    color: var(--text-accent);
}

[data-theme="dark"] .hero-description {
    color: var(--text-tertiary);
}

[data-theme="dark"] .hero-organizer {
    color: var(--accent-primary);
    background: rgba(99, 179, 237, 0.1);
}

[data-theme="dark"] .info-item {
    color: var(--text-secondary);
}

[data-theme="dark"] .bg-light {
    background-color: var(--bg-secondary);
}

[data-theme="dark"] .section-title {
    color: var(--text-accent);
}

[data-theme="dark"] .about-text p,
[data-theme="dark"] .department-content p,
[data-theme="dark"] .institute-text-wrapped p {
    color: var(--text-secondary);
}

[data-theme="dark"] .stat-item {
    background: var(--card-bg);
    color: var(--text-primary);
}

[data-theme="dark"] .stat-item h3 {
    color: var(--accent-primary);
}

[data-theme="dark"] .stat-item p {
    color: var(--text-tertiary);
}

[data-theme="dark"] .theme-card {
    background: var(--card-bg);
    border: 1px solid var(--border-light);
}

[data-theme="dark"] .theme-card h3 {
    color: var(--text-accent);
}

[data-theme="dark"] .theme-card p {
    color: var(--text-tertiary);
}

[data-theme="dark"] .committee-card {
    background: var(--card-bg);
}

[data-theme="dark"] .committee-card h4 {
    color: var(--text-accent);
}

[data-theme="dark"] .affiliation {
    color: var(--text-tertiary);
}

/* Dark mode styles for topic section */
[data-theme="dark"] .topic-section {
    border-top-color: var(--border-light);
}

[data-theme="dark"] .topic-label {
    color: var(--accent-primary);
}

[data-theme="dark"] .topic-text {
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    border-left-color: var(--accent-primary);
}

[data-theme="dark"] .advisory-item {
    background: var(--card-bg);
    color: var(--text-secondary);
}

[data-theme="dark"] .pricing-note {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

[data-theme="dark"] .accordion-item {
    background: var(--card-bg);
}

[data-theme="dark"] .accordion-header {
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
    border-bottom: 1px solid var(--border-light);
}

[data-theme="dark"] .accordion-header:hover {
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
}

[data-theme="dark"] .accordion-title {
    color: var(--text-accent);
}

[data-theme="dark"] .pricing-card-compact {
    background: var(--bg-tertiary);
}

[data-theme="dark"] .pricing-card-compact h5 {
    color: var(--text-accent);
}

[data-theme="dark"] .registration-benefits {
    border: 1px solid var(--border-light);
}

[data-theme="dark"] .registration-benefits h6 {
    color: var(--text-accent);
}

[data-theme="dark"] .benefits-list li {
    color: var(--text-secondary);
}

[data-theme="dark"] .registration-button-section {
    background: var(--card-bg);
    border: 2px solid var(--border-light);
}

[data-theme="dark"] .registration-button-section h3 {
    color: var(--text-accent);
}

[data-theme="dark"] .registration-button-section p {
    color: var(--text-tertiary);
}

[data-theme="dark"] .guidelines-list li {
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-light);
}

[data-theme="dark"] .important-dates {
    background: var(--card-bg);
}

[data-theme="dark"] .important-dates h4 {
    color: var(--text-accent);
}

[data-theme="dark"] .date-item {
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-light);
}

[data-theme="dark"] .sponsor-card {
    background: var(--card-bg);
}

[data-theme="dark"] .sponsor-logo {
    background: var(--bg-secondary);
}

[data-theme="dark"] .sponsorship-info {
    background: var(--card-bg);
}

[data-theme="dark"] .sponsorship-info h3 {
    color: var(--text-accent);
}

[data-theme="dark"] .sponsorship-info p {
    color: var(--text-tertiary);
}

[data-theme="dark"] .contact-item h4 {
    color: var(--text-accent);
}

[data-theme="dark"] .contact-item p {
    color: var(--text-tertiary);
}

[data-theme="dark"] .form-group label {
    color: var(--text-secondary);
}

[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group select,
[data-theme="dark"] .form-group textarea {
    background: var(--input-bg);
    border: 2px solid var(--border-light);
    color: var(--text-primary);
}

[data-theme="dark"] .form-group input:focus,
[data-theme="dark"] .form-group select:focus,
[data-theme="dark"] .form-group textarea:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 179, 237, 0.2);
}

[data-theme="dark"] .footer {
    background: var(--footer-bg);
}

/* Theme Toggle Button */
.nav-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.theme-toggle {
    background: none;
    border: 2px solid var(--border-medium);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.theme-toggle:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    transform: scale(1.05);
}

.theme-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(99, 179, 237, 0.2);
}

[data-theme="dark"] .theme-toggle {
    border-color: var(--border-light);
    color: var(--text-secondary);
}

[data-theme="dark"] .theme-toggle:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

/* Sponsorship Tiers Styles */
.sponsorship-tiers {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin: 3rem 0;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
    text-align: left;
}

/* Center the last item (5th item) by spanning both columns */
.sponsorship-tier:nth-child(5) {
    grid-column: 1 / -1;
    margin: 0 auto;
}

.sponsorship-tier {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border: 2px solid transparent;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.sponsorship-tier::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--tier-color-1), var(--tier-color-2));
}

.sponsorship-tier:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.15);
}

/* Tier-specific colors */
.diamond-tier {
    --tier-color-1: #b9f2ff;
    --tier-color-2: #00d4ff;
    border-color: #00d4ff;
}

.platinum-tier {
    --tier-color-1: #a0b2c6;
    --tier-color-2: #a0b2c6;
    border-color: #c0c0c0;
}

.gold-tier {
    --tier-color-1: #ffd700;
    --tier-color-2: #ffb300;
    border-color: #ffb300;
}

.silver-tier {
    --tier-color-1: #c0c0c0;
    --tier-color-2: #a8a8a8;
    border-color: #a8a8a8;
}

.bronze-tier {
    --tier-color-1: #CD7F32;
    --tier-color-2: #CD7E32;
    border-color: #CD7E32;
    margin: auto;
}

.tier-header {
    text-align: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #eee;
}

.tier-header h4 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.tier-header h4 i {
    font-size: 1.8rem;
}

.diamond-tier .tier-header h4 {
    color: #00d4ff;
}

.platinum-tier .tier-header h4 {
    color: #a0b2c6;
}

.gold-tier .tier-header h4 {
    color: #ffb300;
}

.silver-tier .tier-header h4 {
    color: #888;
}

.bronze-tier .tier-header h4 {
    color: #CD7E32;
}

.tier-amount {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-color);
    background: linear-gradient(135deg, var(--tier-color-1), var(--tier-color-2));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-align: center;
}

.tier-benefits {
    list-style: none;
    padding: 0;
    margin: 0;
}

.tier-benefits li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
    font-size: 0.95rem;
    line-height: 1.5;
}

.tier-benefits li i {
    color: #28a745;
    font-size: 1rem;
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.tier-benefits li:last-child {
    margin-bottom: 0;
}

/* Responsive adjustments for sponsorship tiers */
@media (max-width: 1024px) {
    .sponsorship-tiers {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .sponsorship-tiers {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin: 2rem 0;
    }

    .sponsorship-tier {
        padding: 1.5rem;
    }

    .tier-header h4 {
        font-size: 1.3rem;
    }

    .tier-amount {
        font-size: 1.1rem;
    }

    .tier-benefits li {
        font-size: 0.9rem;
    }
}

/* Dark mode adjustments for sponsorship tiers */
[data-theme="dark"] .sponsorship-tier {
    background: var(--card-bg);
    border-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .tier-header {
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .tier-amount {
    color: var(--text-color);
}

/* Enhanced hover effects for each tier */
.diamond-tier:hover {
    border-color: #00d4ff;
    box-shadow: 0 12px 35px rgba(0, 212, 255, 0.2);
}

.platinum-tier:hover {
    border-color: #a0b2c6;
    box-shadow: 0 12px 35px rgba(160, 178, 198, 0.2);
}

.gold-tier:hover {
    border-color: #ffb300;
    box-shadow: 0 12px 35px rgba(255, 179, 0, 0.2);
}

.silver-tier:hover {
    border-color: #a8a8a8;
    box-shadow: 0 12px 35px rgba(168, 168, 168, 0.2);
}

.bronze-tier:hover {
    border-color: #CD7E32;
    box-shadow: 0 12px 35px rgba(205, 126, 50, 0.2);
}

/* Abstract Submission Section */
.abstract-submission-info {
    background: white;
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-bottom: 4rem;
    border: 2px solid #e2e8f0;
    transition: all 0.3s ease;
}

.abstract-submission-info:hover {
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

.submission-content {
    text-align: center;
}

.submission-content p {
    font-size: 1.1rem;
    color: #4a5568;
    line-height: 1.8;
    margin-bottom: 2.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.submission-links {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.submission-links .btn {
    min-width: 200px;
    padding: 15px 24px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    transition: all 0.3s ease;
}

.submission-links .btn-secondary {
    background: var(--accent-primary);
    color: white;
    border: 2px solid var(--accent-primary);
    box-shadow: 0 4px 15px rgba(49, 130, 206, 0.3);
}

.submission-links .btn-secondary:hover {
    background: var(--accent-secondary);
    border-color: var(--accent-secondary);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(49, 130, 206, 0.4);
}

.submission-contact {
    background: linear-gradient(135deg, #f8fafc, #edf2f7);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
}

.submission-contact .contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    justify-content: center;
    text-align: left;
}

.submission-contact .contact-item i {
    font-size: 1.5rem;
    color: var(--accent-primary);
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.submission-contact .contact-item h4 {
    color: var(--text-accent);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
    font-weight: 600;
}

.submission-contact .contact-item p {
    margin: 0.25rem 0;
    line-height: 1.6;
}

.submission-contact .contact-item p strong {
    color: var(--accent-primary);
    font-weight: 700;
    font-size: 1.1rem;
}

.submission-contact .contact-item p em {
    color: #718096;
    font-size: 0.95rem;
    font-style: italic;
}

/* Themes Section Styling */
.themes-section {
    margin-top: 3rem;
}

.themes-subtitle {
    font-size: 2rem;
    color: var(--text-accent);
    text-align: center;
    margin-bottom: 2.5rem;
    position: relative;
}

.themes-subtitle::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 2px;
}

/* Mobile responsiveness for abstract submission */
@media (max-width: 768px) {
    .abstract-submission-info {
        padding: 2rem;
        margin-bottom: 3rem;
    }

    .submission-content p {
        font-size: 1rem;
        margin-bottom: 2rem;
    }

    .submission-links {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
        margin-bottom: 2rem;
    }

    .submission-links .btn {
        min-width: 250px;
        padding: 12px 20px;
        font-size: 0.95rem;
    }

    .submission-contact {
        padding: 1.5rem;
    }

    .submission-contact .contact-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 0.75rem;
    }

    .submission-contact .contact-item i {
        font-size: 1.3rem;
        margin-top: 0;
    }

    .submission-contact .contact-item h4 {
        font-size: 1.1rem;
        margin-bottom: 0.25rem;
    }

    .themes-subtitle {
        font-size: 1.7rem;
        margin-bottom: 2rem;
    }
}

/* Dark mode styles for abstract submission */
[data-theme="dark"] .abstract-submission-info {
    background: var(--card-bg);
    border-color: var(--border-light);
}

[data-theme="dark"] .submission-content p {
    color: var(--text-secondary);
}

[data-theme="dark"] .submission-contact {
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
    border-color: var(--border-light);
}

[data-theme="dark"] .submission-contact .contact-item h4 {
    color: var(--text-accent);
}

[data-theme="dark"] .submission-contact .contact-item p {
    color: var(--text-secondary);
}

[data-theme="dark"] .submission-contact .contact-item p strong {
    color: var(--accent-primary);
}

[data-theme="dark"] .submission-contact .contact-item p em {
    color: var(--text-tertiary);
}

[data-theme="dark"] .themes-subtitle {
    color: var(--text-accent);
}


@media (max-width: 1200px) {
    .institute-content {
        flex-direction: column;
    }

    .institute-text,
    .institute-image {
        width: 100%;
    }

    .institute-image {
        margin-top: 2rem;
    }

    .institute-img {
        max-width: 700px;
    }
}

/* Responsive adjustments for institute header */
@media (max-width: 1200px) {
    .institute-header-row {
        flex-direction: column;
        text-align: center;
    }

    .institute-image-left,
    .institute-title-right {
        flex: none;
        width: 100%;
    }

    .institute-title-right {
        min-height: auto;
        margin-top: 1rem;
    }
}

@media (max-width: 768px) {
    .institute-header-row {
        gap: 1rem;
    }

    .institute-title-right .about-subtitle {
        font-size: 1.5rem;
    }
}

/* Themes Section */
.themes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.theme-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.theme-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.theme-icon {
    font-size: 3rem;
    color: var(--accent-primary);
    margin-bottom: 1rem;
}

.theme-card h3 {
    color: var(--text-accent);
    margin-bottom: 1rem;
}

.theme-card p {
    color: #718096;
    line-height: 1.6;
}

/* Committee Section */
.committee-section {
    margin-bottom: 4rem;
}

.committee-subtitle {
    font-size: 1.8rem;
    color: var(--text-accent);
    margin-bottom: 2rem;
    text-align: center;
}

/* Committee Subsection Styling */
.committee-subsection {
    margin-bottom: 3rem;
}

.subsection-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: 1rem;
    margin-top: 0;
    padding: 0.75rem 1rem;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border-left: 4px solid var(--accent-primary);
    border-radius: 0 8px 8px 0;
    position: relative;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px var(--shadow-light);
    margin: 5px;
}

.subsection-title:hover {
    transform: translateX(4px);
    box-shadow: 0 4px 8px var(--shadow-medium);
    color: var(--text-accent);
}

.subsection-title::before {
    content: '';
    position: absolute;
    left: -4px;
    top: 0;
    height: 100%;
    width: 4px;
    background: linear-gradient(180deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    border-radius: 2px;
}

/* Dark mode adjustments for subsection titles */
[data-theme="dark"] .subsection-title {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    border-left-color: var(--accent-secondary);
    color: var(--accent-secondary);
}

[data-theme="dark"] .subsection-title:hover {
    color: var(--text-primary);
}

[data-theme="dark"] .subsection-title::before {
    background: linear-gradient(180deg, var(--accent-secondary) 0%, var(--accent-primary) 100%);
}

.guidelines-list li {
    padding: 0.75rem 0;
    border-bottom: 1px solid #e2e8f0;
    color: #4a5568;
    position: relative;
    padding-left: 1.5rem;
}

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

.important-dates {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.important-dates h4 {
    color: var(--text-accent);
    margin-bottom: 1rem;
}

.date-item {
    padding: 1rem 0;
    border-bottom: 1px solid #e2e8f0;
    color: #4a5568;
}

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

/* Sponsors Section */
.sponsors-content {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.technical-partner-section,
.sponsors-section {
    margin-bottom: 2rem;
    text-align: center;
}

.sponsor-category-title {
    font-size: 1.8rem;
    color: var(--text-accent);
    margin-bottom: 2rem;
    text-align: center;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--accent-primary);
    margin-top: 0.25rem;
}

.contact-item h4 {
    color: var(--text-accent);
    margin-bottom: 0.5rem;
}

.contact-item p {
    color: #718096;
    line-height: 1.6;
}

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

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: #63b3ed;
}

.footer-section p {
    color: #cbd5e0;
    line-height: 1.6;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #cbd5e0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #63b3ed;
}

.technical-partner-grid {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    justify-content: center;
    flex-wrap: wrap;
    font-size: 1.2rem;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: #2d3748;
    color: #cbd5e0;
    border-radius: 50%;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #2d3748;
    color: #cbd5e0;
}

/* Pricing Cards */
.pricing-card {
    background: white;
    padding: 3rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    border: 2px solid var(--accent-primary);
    position: relative;
}

.technical-partner-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.sponsors-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    margin-bottom: 3rem;
    justify-items: center;
    align-items: center;
}

/* For screens smaller than tablets, allow fewer columns */
@media (max-width: 768px) {
    .sponsors-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 1024px) and (min-width: 769px) {
    .sponsors-grid {
        grid-template-columns: 1fr;
    }
}

.pricing-card-compact {
    background: #f8fafc;
    padding: 1.2rem;
    border-radius: 8px;
    text-align: center;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.offline-card {
    border-left: 4px solid var(--accent-primary);
}

.online-card {
    border-left: 4px solid #38a169;
}

.pricing-card-compact:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.pricing-card-compact h5 {
    color: var(--text-accent);
    margin-bottom: 0.8rem;
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.3;
}

.price-amount-compact {
    font-size: 1.4rem;
    font-weight: 700;
    padding: 0.4rem 0;
    border-radius: 6px;
    margin: 0;
}

.offline-card .price-amount-compact {
    color: var(--accent-primary);
    background: rgba(49, 130, 206, 0.1);
}

.online-card .price-amount-compact {
    color: #38a169;
    background: rgba(56, 161, 105, 0.1);
}

/* Mobile responsiveness for sponsors */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
        overflow: scroll;
        /* max height = device hight */
        max-height: calc(100vh - 70px);
    }

    .nav-menu.active {
        left: 0;
    }

    /* Mobile dropdown styles */
    .nav-item {
        width: 100%;
        margin-bottom: 0.5rem;
    }

    .nav-item .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        background: #f8fafc;
        border-radius: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
        padding: 0;
        margin: 0;
    }

    .nav-item.active .dropdown-menu {
        max-height: 300px;
        padding: 0.5rem 0;
    }

    .nav-item .dropdown-link {
        padding: 0.75rem 2rem;
        font-size: 0.9rem;
        border-bottom: 1px solid #e2e8f0;
    }

    .nav-item .dropdown-link:hover {
        background: #edf2f7;
        padding-left: 2.5rem;
    }

    /* Hide dropdown arrows on mobile */
    .nav-item:has(.dropdown-menu)>.nav-link::before {
        display: none;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-buttons {
        justify-content: center;
        gap: 1rem;
    }

    .btn {
        min-width: 200px;
        margin: 0.5rem 0;
    }

    .about-content,
    .submission-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero-info {
        display: flex;
        gap: 2rem;
        margin-bottom: 2rem;
        justify-content: center;
        flex-wrap: wrap;
        font-size: 1.2rem;
    }

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

    .section-title {
        font-size: 2rem;
    }

    /* Registration Mobile Styles */
    .participation-sections {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .registration-form {
        padding: 2rem;
        margin: 0 1rem;
    }

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

/* Responsive accordion styles */
@media (max-width: 768px) {
    .accordion-header {
        padding: 1rem;
    }

    .accordion-title {
        font-size: 1rem;
    }

    .pricing-grid-compact {
        grid-template-columns: 1fr;
        padding: 1rem;
    }

    .registration-form {
        padding: 1.5rem;
        margin: 0 1rem;
    }

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

/* Registration Button Section */
.registration-button-container {
    display: flex;
    justify-content: center;
    margin-top: 3rem;
}

.registration-button-section {
    text-align: center;
    max-width: 600px;
    width: 100%;
}

.registration-button-section h3 {
    color: var(--text-accent);
    font-size: 1.8rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.registration-button-section p {
    color: #718096;
    font-size: 1.1rem;
    margin-bottom: 2rem;
    line-height: 1.6;
}

/* Registration Benefits Section */
.registration-benefits {
    margin-top: 1.5rem;
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
}

/* Registration Benefits Hover Functionality - CONSOLIDATED */
.benefits-hover-container {
    position: relative;
    display: flex;
    justify-content: center;
    margin-top: 1rem;
}

.benefits-hover-trigger {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, #f7fafc, #edf2f7);
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    color: var(--accent-primary);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.benefits-hover-trigger:hover {
    background: linear-gradient(135deg, #edf2f7, #e2e8f0);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(49, 130, 206, 0.15);
}

.benefits-hover-trigger i {
    font-size: 1rem;
    color: var(--accent-primary);
}

.benefits-hover-container .registration-benefits {
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    background: white;
    border: 2px solid var(--accent-primary);
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    padding: 1.5rem;
    min-width: 400px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    margin-top: 0;
}

/* Mobile adjustments for hover benefits */
@media (max-width: 768px) {
    .benefits-hover-container .registration-benefits {
        min-width: 320px;
        left: 50%;
        right: auto;
        transform: translateX(-50%);
        padding: 1.2rem;
    }

    .benefits-hover-trigger {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }

    .benefits-list {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .benefits-list li {
        font-size: 0.8rem;
        padding: 0.3rem 0;
    }
}

.important-dates {
    margin-bottom: 2rem;
}

.important-dates .dates-table {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.important-dates .date-row {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: #f7fafc;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.important-dates .date-row:nth-child(odd) {
    background: #edf2f7;
}

.important-dates .date-label {
    font-weight: 600;
    color: var(--text-accent);
}

.important-dates .date-value {
    color: #4a5568;
    font-weight: 500;
}

/* Dark mode styles for important dates */
[data-theme="dark"] .important-dates .dates-table {
    background: var(--bg-secondary);
}

[data-theme="dark"] .important-dates .date-row {
    background: var(--bg-tertiary);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .important-dates .date-label {
    color: var(--text-accent);
}

[data-theme="dark"] .important-dates .date-value {
    color: #cbd5e0;
}

/* important dates responsiveness */

@media (max-width: 768px) {
    .important-dates .dates-table {
        grid-template-columns: 1fr;
    }

    .important-dates .date-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .important-dates .date-label {
        margin-bottom: 0.5rem;
        font-size: 0.9rem;
    }

    .important-dates .date-value {
        font-size: 0.85rem;
    }
}

.travel-method {
    margin-bottom: 2rem;
}

.travel-method h4 {
    font-size: 1.5rem;
    color: var(--text-accent);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.travel-method h4 i {
    color: var(--accent-primary);
    font-size: 1.2rem;
}

.travel-method p {
    color: #4a5568;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.travel-method .airport-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.travel-method .airport-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #e2e8f0;
    color: var(--text-accent);
}

.travel-method .airport-list li:last-child {
    border-bottom: none;
}

.travel-method .airport-list li::before {
    content: '✓';
    color: var(--accent-primary);
    margin-right: 0.5rem;
}

.travel-method .airport-list li {
    display: flex;
    align-items: center;
}

.travel-method .airport-list li i {
    color: var(--accent-primary);
    margin-right: 0.5rem;
}

/* Contact Section Styles */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--card-background);
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 0.25rem;
    min-width: 24px;
}

.contact-item h4 {
    margin: 0 0 0.5rem 0;
    color: var(--text-color);
    font-weight: 600;
    font-size: 1.2rem;
}

.contact-item p {
    margin: 0;
    color: var(--text-light);
    line-height: 1.5;
}

.contact-item p+p {
    margin-top: 0.25rem;
}

/* Hotel Information Section */
.hotel-info-section {
    margin-top: 3rem;
}

.hotel-info-section .section-subtitle {
    font-size: 1.5rem;
    color: var(--text-accent);
    margin-bottom: 1.5rem;
    font-weight: 600;
    text-align: center;
}

.hotel-table {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 900px;
    margin: 0 auto;
}

.hotel-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: #f7fafc;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border-left: 4px solid var(--accent-primary);
    transition: all 0.3s ease;
}

.hotel-row:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.12);
}

.hotel-row:nth-child(even) {
    background: #edf2f7;
}

.hotel-info {
    flex: 1;
    font-weight: 600;
    color: var(--text-accent);
    line-height: 1.5;
}

.hotel-info br {
    margin-bottom: 0.5rem;
}

.hotel-link {
    flex: 0 0 auto;
}

.location-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--accent-primary);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.location-button:hover {
    background: var(--accent-secondary);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    color: white;
    text-decoration: none;
}

.location-button::after {
    content: '📍';
    font-size: 1rem;
}

/* Dark mode styles for hotel table */
[data-theme="dark"] .hotel-row {
    background: var(--bg-tertiary);
    border-left-color: var(--accent-primary);
}

[data-theme="dark"] .hotel-row:nth-child(even) {
    background: var(--bg-secondary);
}

[data-theme="dark"] .hotel-info {
    color: var(--text-primary);
}

[data-theme="dark"] .location-button {
    background: var(--accent-primary);
}

[data-theme="dark"] .location-button:hover {
    background: var(--accent-secondary);
}

/* Responsive design for hotel table */
@media (max-width: 768px) {
    .hotel-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
        padding: 1.25rem;
    }

    .hotel-info {
        text-align: left;
        margin-bottom: 0.5rem;
    }

    .location-button {
        align-self: stretch;
        justify-content: center;
        padding: 1rem;
        font-size: 1rem;
    }
}

/* Places Section */
.places-section {
    padding: 80px 0;
    background: var(--bg-primary);
}

.places-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
    margin-top: 2rem;
}

/* Place Item Card */
.place-item {
    display: flex;
    flex-direction: column;
}

.place-card {
    background: var(--card-bg);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid var(--border-light);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.place-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

/* Image Container */
.image-container {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.place-link {
    display: block;
    height: 100%;
    text-decoration: none;
    position: relative;
}

.place-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.3s ease;
}

.place-card:hover .place-image {
    transform: scale(1.05);
}

/* Fallback background for images */
.place-image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #e2e8f0, #cbd5e0);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #718096;
    font-size: 1.2rem;
    font-weight: 600;
    text-align: center;
}

/* Image Overlay */
.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.place-card:hover .image-overlay {
    opacity: 1;
}

.play-icon {
    font-size: 3rem;
    color: white;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

/* Image Title */
.image-title {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: 2rem 1.5rem 1.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    letter-spacing: 2px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

/* Place Content */
.place-content {
    padding: 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.place-name {
    font-size: 1.8rem;
    color: var(--text-accent);
    margin-bottom: 1rem;
    font-weight: 600;
}

.place-info {
    display: flex;
    gap: 2rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.place-info span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
}

.place-info i {
    color: var(--accent-primary);
    font-size: 1rem;
}

.place-description {
    color: var(--text-secondary);
    line-height: 1.7;
    text-align: justify;
    flex: 1;
}

/* Active nav link styling */
.nav-link.active {
    color: var(--accent-primary);
    font-weight: 600;
}

.nav-link.active::after {
    width: 100%;
}

/* Dark mode adjustments */
[data-theme="dark"] .places-hero {
    background: linear-gradient(135deg, var(--hero-gradient-start), var(--hero-gradient-end));
}

[data-theme="dark"] .places-hero .hero-title {
    color: var(--text-accent);
}

[data-theme="dark"] .places-hero .hero-description {
    color: var(--text-secondary);
}

[data-theme="dark"] .place-card {
    background: var(--card-bg);
    border-color: var(--border-light);
}

[data-theme="dark"] .place-name {
    color: var(--text-accent);
}

[data-theme="dark"] .place-info span {
    color: var(--text-secondary);
}

[data-theme="dark"] .place-description {
    color: var(--text-secondary);
}


/* Responsive Design */
@media (max-width: 1200px) {
    .places-container {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
        gap: 2.5rem;
    }
}

@media (max-width: 768px) {
    .places-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 0 1rem;
    }

    .image-container {
        height: 200px;
    }

    .image-title {
        font-size: 1.3rem;
        padding: 1.5rem 1rem 1rem;
        letter-spacing: 1px;
    }

    .place-content {
        padding: 1.5rem;
    }

    .place-name {
        font-size: 1.6rem;
        margin-bottom: 0.8rem;
    }

    .place-info {
        flex-direction: column;
        gap: 0.5rem;
        margin-bottom: 1rem;
    }

    .place-info span {
        font-size: 0.9rem;
    }

    .place-description {
        font-size: 0.95rem;
        line-height: 1.6;
    }

    .play-icon {
        font-size: 2.5rem;
    }

    /* Ensure proper spacing on mobile */
    .section {
        padding: 60px 0;
    }
}

@media (max-width: 480px) {

    .places-container {
        padding: 0 0.5rem;
        gap: 1.5rem;
    }

    .place-content {
        padding: 1.25rem;
    }

    .place-name {
        font-size: 1.4rem;
    }

    .image-container {
        height: 180px;
    }

    .image-title {
        font-size: 1.1rem;
        padding: 1rem 0.8rem 0.8rem;
    }

    .place-info span {
        font-size: 0.85rem;
    }

    .place-description {
        font-size: 0.9rem;
    }
}

/* Enhanced Mobile Layout Fixes */
@media (max-width: 640px) {
    .places-container {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 0 1rem;
        margin-top: 1.5rem;
    }

    .place-card {
        margin: 0;
        border-radius: 15px;
    }

    .place-info {
        gap: 0.8rem;
        margin-bottom: 1.2rem;
    }

    .place-info span {
        justify-content: flex-start;
        text-align: left;
    }
}

/* Landscape phone adjustments */
@media (max-width: 896px) and (orientation: landscape) {
    .places-hero {
        padding: 80px 20px 30px;
    }

    .places-hero .hero-title {
        font-size: 2.2rem;
    }

    .image-container {
        height: 160px;
    }
}

/* Small mobile devices */
@media (max-width: 360px) {
    .places-hero {
        padding: 85px 10px 25px;
    }

    .places-hero .hero-title {
        font-size: 1.8rem;
    }

    .places-container {
        padding: 0 0.5rem;
        gap: 1.2rem;
    }

    .place-content {
        padding: 1rem;
    }

    .place-name {
        font-size: 1.3rem;
    }

    .image-container {
        height: 160px;
    }

    .image-title {
        font-size: 1rem;
        padding: 0.8rem 0.6rem 0.6rem;
    }
}

/* Chief Guest Profile Styles */
.chief-guest-profile {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
    border: 2px solid #e2e8f0;
    transition: all 0.3s ease;
    max-width: 1000px;
    margin: 0 auto;
}

.chief-guest-profile:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.chief-guest-header {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid #e2e8f0;
}

.chief-guest-header .committee-photo {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--accent-primary);
    box-shadow: 0 8px 25px rgba(49, 130, 206, 0.3);
    flex-shrink: 0;
}

.chief-guest-info h3 {
    font-size: 2.2rem;
    color: var(--text-accent);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.chief-guest-info .affiliation {
    font-size: 1.1rem;
    color: var(--accent-primary);
    font-weight: 600;
    margin: 0;
}

.chief-guest-bio {
    color: #4a5568;
    line-height: 1.8;
}

.chief-guest-bio p {
    font-size: 1.05rem;
    margin-bottom: 1.5rem;
    text-align: justify;
}

.chief-guest-bio p:last-child {
    margin-bottom: 0;
}

/* Dark mode styles for Chief Guest */
[data-theme="dark"] .chief-guest-profile {
    background: var(--card-bg);
    border-color: var(--border-light);
}

[data-theme="dark"] .chief-guest-header {
    border-bottom-color: var(--border-light);
}

[data-theme="dark"] .chief-guest-info h3 {
    color: var(--text-accent);
}

[data-theme="dark"] .chief-guest-info .affiliation {
    color: var(--accent-primary);
}

[data-theme="dark"] .chief-guest-bio {
    color: var(--text-secondary);
}

[data-theme="dark"] .chief-guest-bio p {
    color: var(--text-secondary);
}

/* Responsive styles for Chief Guest */
@media (max-width: 768px) {
    .chief-guest-profile {
        padding: 2rem;
    }

    .chief-guest-header {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }

    .chief-guest-header .committee-photo {
        width: 120px;
        height: 120px;
    }

    .chief-guest-info h3 {
        font-size: 1.8rem;
    }

    .chief-guest-info .affiliation {
        font-size: 1rem;
    }

    .chief-guest-bio p {
        font-size: 1rem;
        text-align: left;
    }
}

@media (max-width: 480px) {
    .chief-guest-profile {
        padding: 1.5rem;
        margin: 0 1rem;
    }

    .chief-guest-header .committee-photo {
        width: 100px;
        height: 100px;
    }

    .chief-guest-info h3 {
        font-size: 1.6rem;
    }

    .chief-guest-bio p {
        font-size: 0.95rem;
    }
}