/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8fafc;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header and Navigation */
.header {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

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

.nav-logo h1 {
    color: white;
    font-size: 1.8rem;
    font-weight: 700;
}

.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;
}

.nav-menu a:hover {
    color: #f0f0f0;
}

/* Hero Section */
.hero {
    background: url('hero.png') no-repeat center center;
    background-size: cover;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    padding-top: 80px;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.2s both;
}

.exclusive-event {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.1);
    padding: 1rem 2rem;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: fadeInUp 1s ease 0.3s both;
}

.cta-button {
    display: inline-block;
    background: white;
    color: #667eea;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    animation: fadeInUp 1s ease 0.4s both;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

/* Mobile Hero Background */
@media (max-width: 768px) {
    .hero {
        background: url('hero-mobile.png') no-repeat center center;
        background-size: cover;
    }
}

/* Events Section */
.events-section {
    padding: 5rem 0;
    background: white;
}

.events-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #333;
}

.events-section > .container > p {
    text-align: center;
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 3rem;
}

.airtable-container {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    margin: 2rem 0;
    max-width: 100%;
}

.airtable-embed {
    border-radius: 15px;
    border: none !important;
    width: 100vw !important;
    max-width: 100%;
    min-width: 0;
}

/* Sponsors Section */
.sponsors-section {
    padding: 5rem 0;
    background: #f8fafc;
}

.sponsors-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #333;
}

.sponsors-section > .container > p {
    text-align: center;
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 3rem;
}

.sponsors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.sponsor-card {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.sponsor-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.sponsor-image {
    width: 200px;
    height: 150px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 1rem;
    background: #f0f0f0;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.sponsor-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.sponsor-card p {
    color: #666;
    font-size: 0.95rem;
}

/* Contact Section */
.contact-section {
    padding: 5rem 0;
    background: white;
}

.contact-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #333;
}

.contact-section > .container > p {
    text-align: center;
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 3rem;
}

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

.contact-item {
    text-align: center;
    padding: 2rem;
    background: #f8fafc;
    border-radius: 15px;
    transition: transform 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-3px);
}

.contact-item h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: #667eea;
}

.contact-item p {
    color: #666;
    line-height: 1.6;
}

/* Footer */
.footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 2rem 0;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: block !important;
        cursor: pointer;
        position: relative;
        z-index: 1001;
        background: rgba(255, 255, 255, 0.1);
        border-radius: 5px;
    }
    
    .hamburger .bar {
        display: block;
        width: 30px;
        height: 4px;
        margin: 6px auto;
        transition: all 0.3s ease-in-out;
        background-color: white;
        border-radius: 2px;
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        gap: 0;
        flex-direction: column;
        background-color: rgba(0, 0, 0, 0.9);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
        display: flex;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 1rem 0;
    }
    
    .nav-menu a {
        font-size: 1.1rem;
        padding: 1rem;
        display: block;
    }
    
    .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: 2.5rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .exclusive-event {
        font-size: 1rem;
        padding: 0.8rem 1.5rem;
    }
    
    .events-section h2,
    .sponsors-section h2,
    .contact-section h2 {
        font-size: 2rem;
    }
    
    .sponsors-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
    
    .airtable-container {
        margin: 1rem 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .sponsor-image {
        width: 150px;
        height: 100px;
    }
    
    .hamburger {
        display: block !important;
    }
}

/* Event Details Section */
.event-details-section {
    padding: 5rem 0;
    background: white;
}

.event-details-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.event-presented-by {
    text-align: center;
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 3rem;
    font-weight: 500;
}

.event-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.event-info-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: #f8fafc;
    border-radius: 10px;
    border-left: 4px solid #667eea;
}

.event-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.event-info-item h3 {
    margin-bottom: 0.5rem;
    color: #333;
    font-size: 1.1rem;
}

.event-info-item p {
    color: #666;
    margin: 0;
}

.event-description {
    text-align: center;
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.event-description p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: #555;
    margin-bottom: 1rem;
}

.limited-spots {
    font-weight: 600;
    color: #667eea !important;
    font-size: 1.2rem !important;
}

.event-schedule {
    max-width: 900px;
    margin: 0 auto;
}

.event-schedule h3 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
    color: #333;
}

.schedule-item {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 2rem;
    margin-bottom: 1.5rem;
    padding: 1.5rem;
    background: #f8fafc;
    border-radius: 10px;
    border-left: 4px solid #667eea;
}

.schedule-item .time {
    font-weight: 600;
    color: #667eea;
    font-size: 1rem;
    text-align: right;
    padding-top: 0.25rem;
}

.schedule-item .activity h4 {
    margin-bottom: 0.5rem;
    color: #333;
    font-size: 1.1rem;
}

.schedule-item .activity p {
    color: #666;
    margin-bottom: 0.5rem;
}

.schedule-item .activity ul {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
}

.schedule-item .activity ul li {
    margin-bottom: 0.25rem;
    color: #555;
}

.schedule-item .activity ul ul {
    margin: 0.25rem 0;
    padding-left: 1rem;
}

.schedule-item .activity ul ul li {
    font-size: 0.95rem;
    color: #666;
}

/* Mobile Responsive Styles for Event Details */
@media (max-width: 768px) {
    .event-details-section h2 {
        font-size: 2rem;
        padding: 0 1rem;
    }
    
    .event-presented-by {
        font-size: 1.1rem;
        padding: 0 1rem;
    }
    
    .event-info-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding: 0 1rem;
    }
    
    .event-info-item {
        padding: 1rem;
        gap: 0.75rem;
    }
    
    .event-icon {
        font-size: 1.5rem;
    }
    
    .event-info-item h3 {
        font-size: 1rem;
    }
    
    .event-info-item p {
        font-size: 0.95rem;
    }
    
    .event-description {
        padding: 0 1rem;
    }
    
    .event-description p {
        font-size: 1rem;
    }
    
    .limited-spots {
        font-size: 1.1rem !important;
    }
    
    .event-schedule {
        padding: 0 1rem;
    }
    
    .event-schedule h3 {
        font-size: 1.5rem;
    }
    
    .schedule-item {
        grid-template-columns: 1fr;
        gap: 0.75rem;
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    .schedule-item .time {
        text-align: left;
        font-size: 0.9rem;
        padding-top: 0;
        font-weight: 700;
        color: #667eea;
        border-bottom: 1px solid #e0e0e0;
        padding-bottom: 0.5rem;
    }
    
    .schedule-item .activity h4 {
        font-size: 1rem;
        margin-bottom: 0.25rem;
    }
    
    .schedule-item .activity p {
        font-size: 0.9rem;
        margin-bottom: 0.25rem;
    }
    
    .schedule-item .activity ul {
        margin: 0.25rem 0;
        padding-left: 1rem;
    }
    
    .schedule-item .activity ul li {
        font-size: 0.9rem;
        margin-bottom: 0.2rem;
    }
    
    .schedule-item .activity ul ul {
        margin: 0.2rem 0;
        padding-left: 0.75rem;
    }
    
    .schedule-item .activity ul ul li {
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .event-details-section {
        padding: 3rem 0;
    }
    
    .event-details-section h2 {
        font-size: 1.75rem;
    }
    
    .event-presented-by {
        font-size: 1rem;
    }
    
    .event-info-item {
        padding: 0.75rem;
    }
    
    .event-icon {
        font-size: 1.25rem;
    }
    
    .event-description p {
        font-size: 0.95rem;
    }
    
    .limited-spots {
        font-size: 1rem !important;
    }
    
    .event-schedule h3 {
        font-size: 1.25rem;
    }
    
    .schedule-item {
        padding: 0.75rem;
    }
    
    .schedule-item .time {
        font-size: 0.85rem;
    }
    
    .schedule-item .activity h4 {
        font-size: 0.95rem;
    }
    
    .schedule-item .activity p {
        font-size: 0.85rem;
    }
    
    .schedule-item .activity ul li {
        font-size: 0.85rem;
    }
    
    .schedule-item .activity ul ul li {
        font-size: 0.8rem;
    }
}

/* Hamburger Menu */
.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
    min-width: 44px;
    min-height: 44px;
}