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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
}

.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;
}

h1 {
    font-size: 3rem;
    font-weight: 700;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
    color: #555;
}

/* Header and Navigation */
.header {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo h1 {
    color: white;
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.nav-logo p {
    color: #bdc3c7;
    font-size: 0.9rem;
    margin: 0;
}

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

.nav-menu a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a:hover {
    color: #c0392b;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #c0392b;
    transition: width 0.3s ease;
}

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

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: white;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(rgba(44, 62, 80, 0.7), rgba(52, 73, 94, 0.7)), url('images/san_juan.jpg');
    background-size: cover;
    background-position: center;
    color: white;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: white;
}

.no-break {
    white-space: nowrap;
}

.hero h2 {
    font-size: 1.8rem;
    font-weight: 400;
    margin-bottom: 1rem;
    color: #ecf0f1;
    white-space: nowrap;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: #bdc3c7;
    margin-bottom: 2rem;
}

.hero-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.1rem;
}

.detail-item i {
    color: #c0392b;
    font-size: 1.2rem;
    width: 20px;
}

.detail-item-clickable {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
    cursor: pointer;
    border-radius: 8px;
    padding: 0.5rem;
    margin: -0.5rem;
}

.detail-item-clickable:hover {
    background-color: rgba(192, 57, 43, 0.1);
    transform: translateY(-2px);
}

.detail-item-clickable:hover i {
    color: #a93226;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, #c0392b 0%, #e74c3c 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(192, 57, 43, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(192, 57, 43, 0.6);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.brain-visual {
    width: 300px;
    height: 300px;
    position: relative;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.neuron-network {
    width: 350px;
    height: 350px;
    position: relative;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 240 240"><defs><radialGradient id="nodeGradient" cx="50%" cy="50%" r="50%"><stop offset="0%" style="stop-color:rgba(255,255,255,1);stop-opacity:1" /><stop offset="100%" style="stop-color:rgba(255,255,255,1);stop-opacity:1" /></radialGradient><radialGradient id="hubGradient" cx="50%" cy="50%" r="50%"><stop offset="0%" style="stop-color:rgba(255,255,255,1);stop-opacity:1" /><stop offset="100%" style="stop-color:rgba(255,255,255,1);stop-opacity:1" /></radialGradient></defs><circle cx="95" cy="45" r="5" fill="url(%23hubGradient)"/><circle cx="55" cy="85" r="3" fill="url(%23nodeGradient)"/><circle cx="175" cy="70" r="3" fill="url(%23nodeGradient)"/><circle cx="35" cy="130" r="4" fill="url(%23nodeGradient)"/><circle cx="135" cy="115" r="6" fill="url(%23hubGradient)"/><circle cx="210" cy="105" r="3" fill="url(%23nodeGradient)"/><circle cx="75" cy="175" r="3" fill="url(%23nodeGradient)"/><circle cx="165" cy="155" r="4" fill="url(%23nodeGradient)"/><circle cx="110" cy="200" r="3" fill="url(%23nodeGradient)"/><circle cx="80" cy="35" r="2" fill="url(%23nodeGradient)"/><circle cx="155" cy="40" r="2" fill="url(%23nodeGradient)"/><circle cx="25" cy="95" r="2" fill="url(%23nodeGradient)"/><circle cx="195" cy="85" r="2" fill="url(%23nodeGradient)"/><circle cx="45" cy="160" r="2" fill="url(%23nodeGradient)"/><circle cx="185" cy="140" r="2" fill="url(%23nodeGradient)"/><circle cx="85" cy="65" r="2" fill="url(%23nodeGradient)"/><circle cx="145" cy="75" r="2" fill="url(%23nodeGradient)"/><circle cx="65" cy="105" r="2" fill="url(%23nodeGradient)"/><circle cx="160" cy="120" r="2" fill="url(%23nodeGradient)"/><circle cx="105" cy="145" r="2" fill="url(%23nodeGradient)"/><circle cx="150" cy="135" r="2" fill="url(%23nodeGradient)"/><circle cx="30" cy="60" r="2" fill="url(%23nodeGradient)"/><circle cx="180" cy="180" r="3" fill="url(%23nodeGradient)"/><circle cx="50" cy="200" r="2" fill="url(%23nodeGradient)"/><line x1="95" y1="45" x2="55" y2="85" stroke="rgba(255,255,255,0.6)" stroke-width="1.5"/><line x1="95" y1="45" x2="145" y2="75" stroke="rgba(255,255,255,0.5)" stroke-width="1"/><line x1="95" y1="45" x2="135" y2="115" stroke="rgba(255,255,255,0.7)" stroke-width="2"/><line x1="135" y1="115" x2="35" y2="130" stroke="rgba(255,255,255,0.5)" stroke-width="1"/><line x1="135" y1="115" x2="175" y2="70" stroke="rgba(255,255,255,0.6)" stroke-width="1.5"/><line x1="135" y1="115" x2="165" y2="155" stroke="rgba(255,255,255,0.6)" stroke-width="1.5"/><line x1="135" y1="115" x2="210" y2="105" stroke="rgba(255,255,255,0.4)" stroke-width="1"/><line x1="135" y1="115" x2="105" y2="145" stroke="rgba(255,255,255,0.5)" stroke-width="1"/><line x1="55" y1="85" x2="35" y2="130" stroke="rgba(255,255,255,0.4)" stroke-width="1"/><line x1="55" y1="85" x2="85" y2="65" stroke="rgba(255,255,255,0.3)" stroke-width="0.5"/><line x1="175" y1="70" x2="210" y2="105" stroke="rgba(255,255,255,0.4)" stroke-width="1"/><line x1="175" y1="70" x2="195" y2="85" stroke="rgba(255,255,255,0.3)" stroke-width="0.5"/><line x1="165" y1="155" x2="180" y2="180" stroke="rgba(255,255,255,0.4)" stroke-width="1"/><line x1="75" y1="175" x2="110" y2="200" stroke="rgba(255,255,255,0.3)" stroke-width="0.8"/><line x1="75" y1="175" x2="45" y2="160" stroke="rgba(255,255,255,0.3)" stroke-width="0.5"/><line x1="80" y1="35" x2="95" y2="45" stroke="rgba(255,255,255,0.3)" stroke-width="0.5"/><line x1="155" y1="40" x2="175" y2="70" stroke="rgba(255,255,255,0.3)" stroke-width="0.5"/><line x1="25" y1="95" x2="55" y2="85" stroke="rgba(255,255,255,0.3)" stroke-width="0.5"/><line x1="30" y1="60" x2="55" y2="85" stroke="rgba(255,255,255,0.2)" stroke-width="0.5"/><line x1="185" y1="140" x2="165" y2="155" stroke="rgba(255,255,255,0.3)" stroke-width="0.5"/><line x1="85" y1="65" x2="145" y2="75" stroke="rgba(255,255,255,0.2)" stroke-width="0.5"/><line x1="65" y1="105" x2="35" y2="130" stroke="rgba(255,255,255,0.2)" stroke-width="0.5"/><line x1="160" y1="120" x2="175" y2="70" stroke="rgba(255,255,255,0.2)" stroke-width="0.5"/><line x1="105" y1="145" x2="75" y2="175" stroke="rgba(255,255,255,0.3)" stroke-width="0.5"/><line x1="150" y1="135" x2="165" y2="155" stroke="rgba(255,255,255,0.2)" stroke-width="0.5"/><line x1="65" y1="105" x2="105" y2="145" stroke="rgba(255,255,255,0.15)" stroke-width="0.3"/><line x1="150" y1="135" x2="185" y2="140" stroke="rgba(255,255,255,0.15)" stroke-width="0.3"/><line x1="50" y1="200" x2="110" y2="200" stroke="rgba(255,255,255,0.2)" stroke-width="0.3"/><line x1="180" y1="180" x2="110" y2="200" stroke="rgba(255,255,255,0.2)" stroke-width="0.5"/></svg>') center/contain no-repeat;
    animation: networkPulse 12s ease-in-out infinite;
}

@keyframes networkPulse {

    0%,
    100% {
        opacity: 0.55;
        transform: scale(0.98) rotate(-2deg);
    }

    50% {
        opacity: 0.85;
        transform: scale(1.05) rotate(2deg);
    }
}

/* Section Styles */
section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: #2c3e50;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, #c0392b 0%, #e74c3c 100%);
    border-radius: 2px;
}

/* About Section */
.about {
    background: #f8f9fa;
}

.about-content {
    max-width: 1000px;
    margin: 0 auto;
}

.about-image {
    text-align: center;
    max-width: 800px;
    width: 100%;
    margin: 0 auto 3rem auto;
}

.drosophila-image {
    width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease;
    object-fit: cover;
    display: block;
    opacity: 1;
    visibility: visible;
}

.drosophila-image:hover {
    transform: scale(1.02);
}

.image-placeholder {
    background: linear-gradient(135deg, #c0392b 0%, #e74c3c 100%);
    color: white;
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    max-width: 600px;
    margin: 0 auto;
}

.image-placeholder i {
    font-size: 4rem;
    margin-bottom: 1rem;
    display: block;
}

.image-placeholder p {
    font-size: 1.2rem;
    margin: 0;
    font-weight: 600;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    text-align: left;
    line-height: 1.8;
    color: #2c3e50;
}

.about-text p:last-child {
    margin-bottom: 0;
}

/* Program Section */
.program-timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.program-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(135deg, #64b5f6 0%, #1976d2 100%);
    transform: translateX(-50%);
}

.timeline-item {
    display: flex;
    align-items: center;
    margin-bottom: 3rem;
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-date {
    background: linear-gradient(135deg, #64b5f6 0%, #1976d2 100%);
    color: white;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    min-width: 120px;
    text-align: center;
    position: relative;
    z-index: 2;
}

.timeline-content {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    margin: 0 2rem;
    flex: 1;
    position: relative;
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 50%;
    width: 0;
    height: 0;
    border: 10px solid transparent;
    transform: translateY(-50%);
}

.timeline-item:nth-child(odd) .timeline-content::before {
    right: 100%;
    border-left-color: white;
}

.timeline-item:nth-child(even) .timeline-content::before {
    left: 100%;
    border-right-color: white;
}

.timeline-content h3 {
    color: #1e3c72;
    margin-bottom: 1rem;
}

.timeline-content ul {
    list-style: none;
    padding-left: 0;
}

.timeline-content li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.timeline-content li::before {
    content: '•';
    color: #64b5f6;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* Speakers Section */
.speakers {
    background: white;
}

.speakers-list {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 15px;
    padding: 3rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.speakers-list ul {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.speakers-list li {
    padding: 1rem 0;
    border-bottom: 1px solid #ecf0f1;
    font-size: 1.1rem;
    color: #2c3e50;
    position: relative;
    padding-left: 2rem;
}

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

.speakers-list li::before {
    content: '•';
    color: #c0392b;
    font-weight: bold;
    font-size: 1.5rem;
    position: absolute;
    left: 0;
    top: 0.8rem;
}

.speakers-list li:hover {
    color: #c0392b;
    transition: color 0.3s ease;
}

/* Organizers Section */
.organizers {
    background: white;
}

.organizers-list {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 15px;
    padding: 3rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.organizers-list ul {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.organizers-list li {
    padding: 1rem 0;
    border-bottom: 1px solid #ecf0f1;
    font-size: 1.1rem;
    color: #2c3e50;
    position: relative;
    padding-left: 2rem;
}

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

.organizers-list li::before {
    content: '•';
    color: #c0392b;
    font-weight: bold;
    font-size: 1.5rem;
    position: absolute;
    left: 0;
    top: 0.8rem;
}

.organizers-list li:hover {
    color: #c0392b;
    transition: color 0.3s ease;
}

/* Registration Section */
.registration {
    background: #f8f9fa;
}

.registration-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.registration .container {
    max-width: 1000px;
}

.registration-info h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

.registration-info ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: 2rem;
}

.registration-info li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.registration-info li::before {
    content: '✓';
    color: #c0392b;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.fee-structure {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    margin-bottom: 1rem;
}

.fee-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid #eee;
}

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

.fee-category {
    font-weight: 600;
    color: #2c3e50;
}

.fee-amount {
    font-size: 1.2rem;
    font-weight: 700;
    color: #c0392b;
}

.fee-note {
    font-size: 0.9rem;
    color: #666;
    font-style: italic;
}

.registration-form {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.registration-form h3 {
    margin-bottom: 1.5rem;
    color: #2c3e50;
}

/* Location Section */
.location {
    background: white;
}

.location-details {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.location-map {
    max-width: 1000px;
    margin: 0 auto;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.location-map iframe {
    width: 100%;
    height: 450px;
    border: 0;
    display: block;
    margin: 0;
    padding: 0;
}

.venue-content {
    max-width: 1200px;
    margin: 0 auto;
}

.venue-top {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 3rem;
}

.venue-details h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.venue-details h4 {
    color: #2c3e50;
    margin: 2rem 0 1rem 0;
    font-size: 1.1rem;
}

.venue-details p {
    margin-bottom: 1rem;
}

.contact-info ul {
    list-style: none;
    padding-left: 0;
}

.contact-info li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #eee;
}

.venue-map {
    width: 100%;
    min-height: 400px;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.map-container {
    width: 100%;
    height: 100%;
    min-height: 400px;
}

.map-placeholder {
    background: white;
    border-radius: 15px;
    padding: 3rem;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    width: 100%;
}

.map-placeholder i {
    font-size: 4rem;
    color: #c0392b;
    margin-bottom: 1rem;
}

.map-placeholder p {
    color: #666;
    font-style: italic;
}

/* Footer */
.footer {
    background: #2c3e50;
    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 h3 {
    color: #c0392b;
    margin-bottom: 1rem;
}

.footer-section p {
    color: white;
}

.footer-section ul {
    list-style: none;
    padding-left: 0;
}

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

.footer-section a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #c0392b;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    display: inline-block;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease;
}

.social-links a:hover {
    background: #c0392b;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
}

.footer-bottom p {
    color: white;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .nav-menu {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .hero {
        padding-top: 120px !important;
        align-items: flex-start !important;
        min-height: calc(100vh - 80px) !important;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
        margin-top: 1.5rem !important;
        padding-top: 0 !important;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero h2 {
        font-size: 1.4rem;
    }

    .registration-content,
    .venue-top {
        grid-template-columns: 1fr;
        gap: 2rem;
        margin-bottom: 2rem;
    }

    .hero-buttons {
        justify-content: center;
    }

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

    .speaker-item {
        flex-direction: column;
        text-align: center;
    }

    .speaker-image {
        margin-right: 0;
        margin-bottom: 1rem;
    }
}

@media (max-width: 768px) {
    .venue-top {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .venue-image {
        order: -1;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        padding-top: 140px !important;
        min-height: calc(100vh - 60px) !important;
        align-items: flex-start !important;
    }

    .hero-content {
        margin-top: 1rem !important;
        padding-top: 0 !important;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero h2 {
        font-size: 1.2rem;
    }

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

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}

/* Sponsors Section */
.sponsors {
    background: #f8f9fa;
}

.sponsors-content {
    max-width: 1000px;
    margin: 0 auto;
}

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

.sponsor-item {
    text-align: center;
    padding: 2rem;
    background: #f8f9fa;
    border-radius: 15px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 2px solid transparent;
}

.sponsor-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
    border-color: #c0392b;
}

.sponsor-logo {
    width: auto;
    height: 120px;
    max-width: 200px;
    margin: 0 auto 1rem;
    border-radius: 15px;
    background: linear-gradient(135deg, #c0392b 0%, #e74c3c 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 15px;
}

.sponsor-logo i {
    font-size: 2.5rem;
    color: white;
}

.sponsor-image {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 10px;
}

.sponsor-logo.image-logo {
    background: white;
    border: 2px solid #e9ecef;
}



.sponsor-item h3 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.sponsor-item p {
    color: #7f8c8d;
    font-size: 0.9rem;
    margin: 0;
}

.sponsor-info {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.sponsor-info h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

.sponsor-info p {
    color: #555;
    margin-bottom: 1rem;
}

.sponsor-info ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: 1.5rem;
    text-align: left;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.sponsor-info li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.sponsor-info li::before {
    content: '✓';
    color: #c0392b;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.sponsor-info strong {
    color: #c0392b;
}

/* Hotel & Travel Section */
.hotel-travel {
    background: white;
}

.venue-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.venue-photo {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.venue-photo:hover {
    transform: scale(1.02);
}

.hotel-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.hotel-info h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

.hotel-info p {
    margin-bottom: 1.5rem;
}

.hotel-info ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: 2rem;
}

.hotel-info li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.hotel-info li::before {
    content: '✓';
    color: #c0392b;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.hotel-map {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hotel-map .map-placeholder {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 3rem;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    width: 100%;
}

.hotel-map .map-placeholder i {
    font-size: 4rem;
    color: #c0392b;
    margin-bottom: 1rem;
}

.hotel-map .map-placeholder p {
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.hotel-map .map-placeholder p:last-child {
    color: #7f8c8d;
    font-size: 0.9rem;
    margin-bottom: 0;
}

.openreview-notice {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 1.5rem;
    border-radius: 12px;
    border-left: 4px solid #c0392b;
    margin-bottom: 2rem;
    box-shadow: 0 2px 10px rgba(192, 57, 43, 0.1);
}

.openreview-notice p {
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.openreview-notice ul {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.openreview-notice li {
    margin-bottom: 0.5rem;
    color: #34495e;
}

.openreview-button {
    text-align: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 12px;
    border: 2px dashed #c0392b;
}

.openreview-button .btn {
    font-size: 1.1rem;
    padding: 15px 30px;
    margin-bottom: 1rem;
}

.button-note {
    font-size: 0.85rem;
    color: #6c757d;
    font-style: italic;
    margin: 0;
}

/* Password Protection */
.password-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.password-container {
    background: white;
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    text-align: center;
    max-width: 400px;
    width: 90%;
}

.password-content h2 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.password-content p {
    color: #34495e;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.password-form {
    margin-bottom: 1.5rem;
}

.password-form input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e1e8ed;
    border-radius: 8px;
    font-size: 1rem;
    margin-bottom: 1rem;
    transition: border-color 0.3s ease;
}

.password-form input:focus {
    outline: none;
    border-color: #c0392b;
}

.password-form .btn {
    width: 100%;
    padding: 12px 30px;
    font-size: 1rem;
}

.password-note {
    font-size: 0.85rem;
    color: #7f8c8d;
    font-style: italic;
    margin: 0;
}

.main-content {
    display: block;
}

/* Hide password overlay when content is shown */
.password-overlay.hidden {
    display: none;
}