/* ===== CSS Variables ===== */
:root {
    --primary-color: #003366; /* Deep Blue */
    --primary-light: #335c85;
    --secondary-color: #c9a249; /* Brighter Gold/Bronze */
    --secondary-dark: #8c7335;
    --accent-color: #e63946;
    --text-dark: #1d1d1f;
    --text-light: #ffffff;
    --text-muted: #555555; /* Darker muted text for better contrast */
    --bg-light: #f5f5f7;
    --bg-white: #ffffff;
    --bg-dark: #121212;
    --gradient-hero: linear-gradient(135deg, rgba(0, 51, 102, 0.92) 0%, rgba(13, 61, 77, 0.85) 100%);
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.15);
    --transition-fast: 0.2s cubic-bezier(0.165, 0.84, 0.44, 1);
    --transition-normal: 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    --border-radius: 12px;
    --border-radius-lg: 20px;
    --container-width: 1280px; /* Slightly wider container */
    --header-height: 90px;
}

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

html {
    font-size: 17px; /* Increased base font size */
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.7; /* Increased line height */
    color: var(--text-dark);
    background-color: var(--bg-white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    line-height: 1.3;
    color: var(--primary-color);
}

p {
    text-align: justify; /* Justify text */
    margin-bottom: 1.5rem;
}

/* Override justify for centered text utility */
.text-center p {
    text-align: center;
}

/* Override justify for hero section */
.hero-content p {
    text-align: center;
}

/* Override justify for footer */
footer p {
    text-align: left;
    margin-bottom: 0;
}

.footer-content p {
    text-align: left;
}

/* Override justify for contact cards */
.contact-card p {
    text-align: center;
    margin-bottom: 8px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-fast);
}

ul {
    list-style: none;
}

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

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section-padding {
    padding: 100px 0;
}

.bg-light {
    background-color: var(--bg-light);
}

.bg-dark {
    background-color: var(--bg-dark);
    color: var(--text-light);
}

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

.text-light {
    color: var(--text-light);
}

/* ===== Typography Utilities ===== */
.section-header {
    margin-bottom: 60px;
    position: relative;
}

.subtitle {
    display: block;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--secondary-color);
    margin-bottom: 10px;
    font-weight: 600;
}

.section-title {
    font-size: 2.8rem; /* Increased size */
    margin-bottom: 25px;
    position: relative;
    display: inline-block;
}

.line-dec {
    width: 80px; /* Wider line */
    height: 4px; /* Thicker line */
    background-color: var(--secondary-color);
    margin: 0 auto;
    border-radius: 2px;
}

.accent-dec {
    background-color: var(--accent-color);
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 16px 36px; /* Increased padding */
    font-size: 1.1rem; /* Increased font size */
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background-color: var(--secondary-color);
    color: var(--text-light);
    border: 2px solid var(--secondary-color);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(191, 161, 95, 0.4);
}

.btn-outline {
    background-color: transparent;
    color: var(--text-light);
    border: 2px solid var(--text-light);
}

.btn-outline:hover {
    background-color: var(--text-light);
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.3);
}

.btn-outline-dark {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline-dark:hover {
    background-color: var(--primary-color);
    color: var(--text-light);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 51, 102, 0.2);
}

.btn-flash {
    animation: flash-animation 2s infinite;
    text-align: center;
}

@keyframes flash-animation {
    0% { box-shadow: 0 0 0 0 rgba(0, 51, 102, 0.4); }
    70% { box-shadow: 0 0 0 15px rgba(0, 51, 102, 0); }
    100% { box-shadow: 0 0 0 0 rgba(0, 51, 102, 0); }
}

.btn-text {
    background: none;
    border: none;
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.05rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 15px;
}

.btn-text:hover {
    color: var(--secondary-color);
}

/* ===== Navbar ===== */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: transparent;
    z-index: 1000;
    transition: background-color var(--transition-normal), height var(--transition-normal), box-shadow var(--transition-normal);
}

#navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    height: 70px;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--text-light);
    font-family: 'Playfair Display', serif;
}

.logo-img {
    height: 55px;
    width: auto;
}

#navbar.scrolled .logo {
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-link {
    color: var(--text-light);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding-bottom: 5px;
}

#navbar.scrolled .nav-link {
    color: var(--text-dark);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    transition: width var(--transition-fast);
}

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

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--text-light);
    margin: 5px 0;
    transition: all 0.3s ease;
}

#navbar.scrolled .bar {
    background-color: var(--text-dark);
}

/* ===== Dropdown Menu ===== */
.nav-item.dropdown {
    position: relative;
}

.dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.dropdown-toggle i {
    font-size: 0.8rem;
    transition: transform var(--transition-fast);
}

.nav-item.dropdown:hover .dropdown-toggle i {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--bg-white);
    min-width: 200px;
    padding: 15px 0;
    border-radius: 0 0 10px 10px;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-fast);
}

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

.dropdown-menu li {
    padding: 0;
}

.dropdown-menu .nav-link {
    color: var(--text-dark) !important;
    padding: 10px 25px;
    display: block;
    font-size: 0.9rem;
}

.dropdown-menu .nav-link::after {
    display: none;
}

.dropdown-menu .nav-link:hover {
    color: var(--secondary-color) !important;
    /* background-color: var(--bg-light); */
}

/* ===== Hero Section ===== */
.hero-section {
    height: 100vh;
    width: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url('../images/bg.jpg') no-repeat center center/cover;
    background-attachment: fixed;
    overflow: hidden;
}

.hero-logo {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1; /* Match overlay z-index so it sits in/behind it, but we can set it higher if needed */
    opacity: 0.55; /* Adjusted opacity to make it some transparent */
    pointer-events: none; /* Make sure it doesn't block clicks */
}

.hero-logo img {
    height: 50vh; /* Scaled relative to viewport */
    min-height: 300px;
    max-height: 800px;
    width: auto;
    object-fit: contain;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-hero);
    opacity: 0.85;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--text-light);
    max-width: 900px;
}

.hero-content h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: 20px;
    color: rgba(255, 255, 255, 0.9);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.hero-content h1 {
    font-size: 2.95rem;
    font-weight: 700;
    margin-bottom: 30px;
    color: var(--text-light);
    line-height: 1.2;
}

.hero-date {
    font-size: 1.25rem;
    margin-bottom: 40px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.1);
    padding: 10px 20px;
    border-radius: 50px;
    backdrop-filter: blur(5px);
}

.hero-btns {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* ===== About Section ===== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text {
    font-size: 1.05rem;
    color: var(--text-muted);
}

.about-text p {
    margin-bottom: 20px;
}

.about-objectives {
    margin-top: 30px;
    background: var(--bg-light);
    padding: 30px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--secondary-color);
}

.about-objectives h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.about-objectives ul li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 12px;
}

.about-objectives ul li i {
    color: var(--secondary-color);
    margin-top: 5px;
}

.img-wrapper {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.img-wrapper::before {
    content: '';
    position: absolute;
    top: 20px;
    left: -20px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--secondary-color);
    border-radius: var(--border-radius-lg);
    z-index: -1;
}

/* ===== Important Dates ===== */
.timeline {
    display: flex;
    justify-content: space-between;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #e2e8f0;
    z-index: 0;
}

.timeline-item {
    position: relative;
    z-index: 1;
    text-align: center;
    background-color: var(--bg-light);
    padding: 0 10px;
    flex: 1;
}

.timeline-icon {
    width: 100px; /* Increased size */
    height: 100px; /* Increased size */
    background-color: var(--bg-white);
    border: 3px solid var(--secondary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 2.5rem; /* Increased icon size */
    color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal);
}

.timeline-item:hover .timeline-icon {
    transform: scale(1.1);
    background-color: var(--secondary-color);
    color: var(--text-light);
    box-shadow: var(--shadow-lg);
}

.timeline-content h3 {
    font-size: 1.3rem; /* Increased size */
    margin-bottom: 8px;
    color: var(--primary-color);
    font-weight: 700;
}

.timeline-content p {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ===== Tracks Section ===== */
.tracks-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr); /* Force 2 columns */
    gap: 40px; /* Increased gap slightly for better breathing room */
}

.track-card {
    background-color: var(--bg-white);
    padding: 40px 30px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    border-top: 4px solid transparent;
}

.track-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-md);
    border-top-color: var(--secondary-color);
}

.track-icon {
    font-size: 3.5rem; /* Increased size */
    color: var(--secondary-color);
    margin-bottom: 25px;
}

.track-card h3 {
    font-size: 1.5rem; /* Increased size */
    margin-bottom: 25px;
    min-height: 60px;
}

.track-list {
    margin-bottom: 25px;
}

.track-list li {
    margin-bottom: 12px;
    font-size: 1.05rem; /* Increased size */
    color: var(--text-muted);
    padding-left: 20px;
    position: relative;
    text-align: left; /* Keep lists left aligned */
}

.track-list li::before {
    content: '•';
    color: var(--secondary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
    font-size: 1.2rem;
}

.hidden {
    display: none;
}

.track-details ul {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid #eee;
}

.track-details li {
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--text-muted);
    padding-left: 15px;
    position: relative;
}

.track-details li::before {
    content: '-';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
}

.margin-top-50 {
    margin-top: 50px;
}

.pub-box {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 40px;
    border-radius: var(--border-radius);
    text-align: left; /* Changed from center to left for readability */
    border: 1px solid #dee2e6;
}

.pub-box h3 {
    text-align: center; /* Keep title centered */
    margin-bottom: 25px;
    font-size: 1.8rem;
}

.pub-content p {
    margin-bottom: 15px;
    color: var(--text-dark);
}

.pub-list {
    margin: 20px 0 25px 20px;
}

.pub-list li {
    margin-bottom: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.pub-list li i {
    color: var(--secondary-color);
}

.pub-note {
    font-size: 0.95rem;
    color: var(--text-muted);
    font-style: italic;
    background: rgba(0, 0, 0, 0.03);
    padding: 15px;
    border-left: 4px solid var(--primary-light);
    border-radius: 4px;
    margin-top: 25px;
}

/* ===== Keynote Speakers Section ===== */
.keynote-wrapper {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 40px;
    gap: 25px;
}

.keynote-card {
    background-color: var(--bg-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    width: 350px;
    max-width: 350px;
    text-align: center;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.keynote-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.2);
}

.keynote-image {
    width: 100%;
    height: 300px;
    overflow: hidden;
}

.keynote-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    transition: transform var(--transition-normal);
}

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

.keynote-info {
    padding: 30px;
    border-top: 4px solid var(--secondary-color);
}

.keynote-info h3 {
    font-size: 1.6rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.keynote-affiliation {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ===== Committees Section ===== */
.committees-wrapper {
    max-width: 1000px;
    margin: 0 auto;
}

.committee-tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 24px;
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tab-btn.active, .tab-btn:hover {
    background-color: var(--primary-color);
    color: var(--text-light);
}

.committee-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

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

.committee-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
}

.person-card {
    background-color: var(--bg-white);
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: transform var(--transition-fast);
}

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

.person-card h4 {
    font-size: 1rem;
    margin-bottom: 5px;
    color: var(--text-dark);
}

.person-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-align: center;
}

.committee-group {
    text-align: center;
    margin-bottom: 40px;
}

.person-card.highlight {
    display: inline-block;
    min-width: 300px;
    border-left: 5px solid var(--secondary-color);
}

/* ===== Submission Section ===== */
.submission-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.check-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    font-size: 1.05rem;
}

.check-list i {
    color: #10b981; /* Success Green */
    background: #ecfdf5;
    padding: 8px;
    border-radius: 50%;
}

.formatting-requirements {
    margin-top: 40px;
}

.format-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 20px;
}

.format-card {
    background-color: var(--bg-light);
    padding: 20px;
    border-radius: var(--border-radius);
}

.format-card h5 {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    font-size: 1rem;
}

.cta-card {
    background-color: var(--primary-color);
    color: var(--text-light);
    padding: 50px;
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.cta-card i {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.8;
}

.cta-card h3 {
    color: var(--text-light);
    margin-bottom: 15px;
}

.cta-card .btn {
    margin-top: 25px;
    background-color: var(--text-light);
    color: var(--primary-color);
    border: none;
    width: 100%;
}

.cta-card .btn:hover {
    background-color: var(--secondary-color);
    color: var(--text-light);
}

.small-note {
    margin-top: 15px;
    font-size: 0.85rem;
    opacity: 0.8;
}

.small-note a {
    text-decoration: underline;
}

/* ===== Fees Section ===== */
.fees-wrapper {
    max-width: 1000px;
    margin: 0 auto;
}

.fee-tables {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 40px;
}

.fee-table {
    background-color: var(--bg-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    border: 1px solid #e2e8f0;
}

.fee-table:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.fee-table.highlight-table {
    border: 2px solid var(--secondary-color);
    position: relative;
}

.fee-header {
    background-color: var(--primary-color);
    color: var(--text-light);
    padding: 25px 20px;
    text-align: center;
}

.highlight-table .fee-header {
    background: var(--gradient-hero);
}


.nested {
    /* small line under the text only */
    text-decoration: underline;
    text-decoration-color: var(--secondary-dark);
}

.fee-header h3 {
    color: var(--text-light);
    font-size: 1.5rem;
    margin-bottom: 5px;
}

.fee-header p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
    margin-bottom: 0;
    text-align: center;
}

.fee-list {
    padding: 30px 20px;
}

.fee-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px dashed #e2e8f0;
    font-size: 1.1rem;
}

.fee-list li:last-child {
    border-bottom: none;
}

.fee-list li span {
    color: var(--text-muted);
}

.fee-list li strong {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.fee-includes {
    background-color: var(--bg-white);
    padding: 30px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--secondary-color);
    box-shadow: var(--shadow-sm);
}

.fee-includes h4 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.fee-includes h4 i {
    color: var(--secondary-color);
}

.fee-includes p {
    margin-bottom: 0;
    color: var(--text-muted);
}

/* ===== Payment Details ===== */
.payment-details {
    max-width: 1000px;
    margin: 0 auto;
}

.payment-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.payment-card {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    padding: 30px;
    transition: transform var(--transition-fast);
    border-top: 4px solid var(--primary-color);
}

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

.payment-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid #e2e8f0;
}

.payment-card-header h4 {
    color: var(--primary-color);
    font-size: 1.25rem;
    margin: 0;
}

.payment-card-header i {
    font-size: 1.5rem;
    color: var(--secondary-color);
}

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

.payment-list li {
    padding: 10px 0;
    border-bottom: 1px dashed rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
}

.payment-list li:last-child {
    border-bottom: none;
}

.payment-list li strong {
    color: var(--text-dark);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 3px;
}

/* ===== Footer ===== */
.contact-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.contact-card {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 40px 20px;
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: background-color var(--transition-fast);
}

.contact-card:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.contact-icon {
    font-size: 3.5rem; /* Increased size */
    color: var(--secondary-color);
    margin-bottom: 25px;
}

.contact-card h3 {
    color: var(--text-light);
    font-size: 1.4rem; /* Increased size */
    margin-bottom: 15px;
}

.contact-card p {
    color: rgba(255, 255, 255, 0.85); /* Increased contrast */
    margin-bottom: 8px;
    font-size: 1.1rem; /* Increased size */
}

.contact-card .small-text {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 0;
}

.contact-person.mt-3 {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.text-link {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* ===== Footer ===== */
footer {
    background-color: #0a0a0a;
    color: rgba(255, 255, 255, 0.5);
    padding: 40px 0;
    font-size: 0.9rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.footer-logo img {
    height: 40px;
    opacity: 0.8;
}

.footer-links a {
    margin-left: 20px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-links a:hover {
    color: var(--text-light);
}

/* ===== Animations ===== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }
.delay-400 { transition-delay: 0.4s; }

/* Utility Classes */
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }
.full-width { width: 100%; }

.slide-up { transform: translateY(30px); }
.slide-right { transform: translateX(-30px); }
.slide-left { transform: translateX(30px); }
.fade-in { transform: scale(0.95); }


.se2 {
    font-size: 4.0rem;
}

/* ===== Media Queries ===== */
@media (max-width: 992px) {
    .section-title { font-size: 2rem; }
    .hero-content h1 { font-size: 2.8rem; }
    .hero-logo img { height: 350px; }
    
    .about-content, .submission-content {
        grid-template-columns: 1fr;
    }
    
    .timeline::before {
        display: none;
    }
    
    .timeline {
        flex-direction: column;
        gap: 30px;
    }
    
    .timeline-item {
        display: flex;
        align-items: center;
        text-align: left;
        gap: 20px;
        padding: 0;
    }
    
    .timeline-icon {
        margin: 0;
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
        flex-shrink: 0;
    }
}

@media (max-width: 768px) {
    :root { --header-height: 60px; }
    
    .hamburger {
        display: block;
        z-index: 1001;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 0;
        gap: 0;
        flex-direction: column;
        background-color: var(--bg-dark);
        width: 100%;
        height: 100vh;
        text-align: center;
        transition: 0.3s;
        padding-top: 80px;
        z-index: 999;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-item {
        margin: 10px 0;
        width: 100%;
    }
    
    .nav-link {
        font-size: 1rem;
        color: var(--text-light) !important;
        display: inline-block;
        position: relative;
        padding-bottom: 5px;
    }

    .nav-link.active,
    .dropdown-toggle.active {
        color: var(--secondary-color) !important;
    }

    .nav-link::after,
    .dropdown-toggle::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        width: 0;
        height: 3px;
        background-color: var(--secondary-color);
        transition: all var(--transition-fast);
        transform: translateX(-50%);
    }

    .nav-link.active::after,
    .dropdown-toggle.active::after {
        width: 40px;
    }

    /* Mobile Dropdown */
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        background-color: transparent;
        box-shadow: none;
        padding: 0;
        display: none;
        width: 100%;
        text-align: center;
    }

    .nav-item.dropdown.active .dropdown-menu {
        display: block;
    }

    .dropdown-menu .nav-link {
        color: rgba(255, 255, 255, 0.8) !important;
        font-size: 1.05rem;
        padding: 10px 0;
    }

    .dropdown-toggle {
        justify-content: center;
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-content h1 { font-size: 2.2rem; }
    .hero-logo img { height: 300px; }
    .format-tabs, .payment-cards { grid-template-columns: 1fr; }
}

/* Mobile Breakpoints as requested */
@media (max-width: 576px) {
    .container { padding: 0 16px; }
    .section-padding { padding: 60px 0; }
    .hero-content h1 { font-size: 1.8rem; }
    .hero-logo img { height: 250px; }
    .hero-date { font-size: 1rem; padding: 8px 16px; }
    .btn { padding: 12px 24px; font-size: 0.9rem; }

    /* .hero-content h2 { font-size: 1.15rem; padding-top: 55px; line-height: 0.9; } */
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links a {
        margin: 0 10px;
    }

    .se2 {
    font-size: 1.9rem;
    }
}

@media (max-width: 480px) {
    .section-title { font-size: 1.8rem; }
    .hero-btns { flex-direction: column; width: 100%; }
    .hero-btns .btn { width: 100%; text-align: center; }
    .hero-content h2 { font-size: 1.15rem; padding-top: 60px; line-height: 1.15; }
    .hero-logo img { height: 200px; }
    .tracks-grid, .committee-grid, .fee-tables {
        grid-template-columns: 1fr;
    }

        .se2 {
    font-size: 1.8rem;
    }
}

@media (max-width: 410px) {
    .section-title { font-size: 1.8rem; }
    .hero-btns { flex-direction: column; width: 100%; }
    .hero-btns .btn { width: 100%; text-align: center; }
    .hero-content h2 { font-size: 1.15rem; }
    .hero-logo img { height: 150px; }
    .tracks-grid, .committee-grid, .fee-tables {
        grid-template-columns: 1fr;
    }

        .se2 {
    font-size: 1.7rem;
    }
}

@media (max-width: 400px) {
    .logo-text { font-size: 1rem; }
    .section-title { font-size: 1.5rem; }
    .about-text { font-size: 0.95rem; }
    .hero-content h2 { font-size: 1.15rem; padding-top: 60px; line-height: 1.15; }
    .hero-content h1 { font-size: 1.6rem; }
    .hero-logo img { height: 130px; }
}

@media (max-width: 369px) {

    .hero-content h1 { font-size: 1.2rem; }
    .hero-content h2 { font-size: 0.9rem; padding-top: 75px; line-height: 1.15; }
    .hero-logo img { height: 110px; }
}


@media (max-width: 349px) {
    .logo-text { font-size: 1rem; }
    .section-title { font-size: 1.1rem; }
    .about-text { font-size: 0.95rem; }
    .hero-content h1 { font-size: 1.45rem; }
    .hero-content h2 { font-size: 0.9rem; padding-top: 65px; line-height: 1.15; }
    .hero-logo img { height: 100px; }
}

.break-line {
  display: inline;
}

/* At 795px and above: split into two rows */
@media (min-width: 795px) {
  .break-line {
    display: block;
  }
  .hero-content h2 { padding-top: 100px; }
}

/* ===== Countdown Timer ===== */
.countdown-container {
    margin: 20px 0;
}

.countdown {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.15);
    padding: 15px 25px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 55px;
}

.countdown-number {
    font-size: 2rem;
    font-weight: 700;
    font-family: 'Playfair Display', serif;
    color: var(--secondary-color);
    line-height: 1;
    display: block;
    transition: all 0.3s ease;
    position: relative;
}

.countdown-number.flip {
    animation: flipNumber 0.6s ease;
}

@keyframes flipNumber {
    0% {
        transform: rotateX(0deg);
    }
    50% {
        transform: rotateX(90deg);
        opacity: 0.5;
    }
    100% {
        transform: rotateX(0deg);
    }
}

.countdown-label {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.8);
    margin-top: 5px;
}

.countdown-separator {
    font-size: 1.8rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.5);
    font-family: 'Playfair Display', serif;
    align-self: flex-start;
    margin-top: 3px;
}

/* Countdown responsive styles */
@media (max-width: 768px) {
    .countdown {
        padding: 12px 20px;
        gap: 8px;
    }

    .countdown-number {
        font-size: 1.6rem;
    }

    .countdown-separator {
        font-size: 1.5rem;
    }

    .countdown-item {
        min-width: 45px;
    }

    .countdown-label {
        font-size: 0.6rem;
        letter-spacing: 0.5px;
    }
}

@media (max-width: 480px) {
    .countdown {
        padding: 10px 15px;
        gap: 6px;
    }

    .countdown-number {
        font-size: 1.3rem;
    }

    .countdown-separator {
        font-size: 1.2rem;
    }

    .countdown-item {
        min-width: 38px;
    }

    .countdown-label {
        font-size: 0.55rem;
    }
}