:root {
    --primary-color: #6C63FF;
    --secondary-color: #FF6584;
    --bg-color: #0f172a;
    --surface-color: #1e293b;
    --surface-color-light: #334155;
    --text-color: #f8fafc;
    --text-muted: #94a3b8;
    --accent-glow: rgba(108, 99, 255, 0.5);
    
    --font-family: 'Poppins', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 1px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--primary-color);
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--primary-color);
    transition: var(--transition);
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 5% 2rem;
    position: relative;
    background: radial-gradient(circle at center, rgba(108, 99, 255, 0.15) 0%, transparent 50%);
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 50%, rgba(255, 101, 132, 0.05) 0%, transparent 50%);
    z-index: -1;
    pointer-events: none;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    animation: fadeInUp 1s ease-out;
}

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

.hero h1 {
    font-size: clamp(3rem, 5vw, 4.5rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.highlight {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 1.5rem;
    color: var(--text-muted);
    font-weight: 300;
    margin-bottom: 2rem;
}

.location {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--surface-color);
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    color: var(--text-muted);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.location svg {
    color: var(--secondary-color);
}

/* Split Sections */
.split-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    padding: 6rem 5% 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.split-section.first-section {
    padding-top: 8rem; /* Space for navbar */
    min-height: 100vh;
}

.split-section.reverse {
    grid-template-columns: 1fr 1fr;
}

@media (max-width: 992px) {
    .split-section {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .split-section.reverse .split-image {
        order: -1;
    }
    
    .location {
        margin: 0 auto;
    }
}

.split-content {
    animation: fadeInUp 1s ease-out;
}

.split-content h1, .split-content h2 {
    font-size: clamp(2.5rem, 4vw, 4rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.split-content .description {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.split-image {
    animation: fadeInUp 1s ease-out 0.2s backwards;
    position: relative;
}

.split-image img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.schedule-times {
    display: flex;
    gap: 2rem;
    margin: 2rem 0;
}

@media (max-width: 992px) {
    .schedule-times {
        justify-content: center;
    }
}

.time-block h3 {
    font-size: 1.2rem;
    color: var(--text-color);
}

.time-block .time {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary-color);
}

/* Calendar Section */
.calendar-section {
    padding: 4rem 5%;
    background: var(--surface-color-light);
    margin-top: 2rem;
}

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

.calendar-header {
    text-align: center;
    margin-bottom: 3rem;
}

.calendar-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.calendar-header p {
    color: var(--text-muted);
}

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

.event-card {
    display: flex;
    gap: 1.5rem;
    background: var(--surface-color);
    padding: 1.5rem;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.event-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(108, 99, 255, 0.2);
    border-color: rgba(108, 99, 255, 0.3);
}

.event-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(108, 99, 255, 0.1);
    padding: 1rem;
    border-radius: 12px;
    min-width: 80px;
    text-align: center;
}

.event-date .month {
    font-size: 0.9rem;
    text-transform: uppercase;
    font-weight: 600;
    color: var(--primary-color);
}

.event-date .day {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-color);
    line-height: 1;
}

.event-details h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.event-details p {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin: 0;
}

/* Tabs Section */
.info-section {
    padding: 5rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.tabs-container {
    background: var(--surface-color);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.tabs-header {
    display: flex;
    background: rgba(15, 23, 42, 0.5);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    overflow-x: auto;
}

.tab-btn {
    flex: 1;
    padding: 1.5rem 2rem;
    background: none;
    border: none;
    color: var(--text-muted);
    font-family: var(--font-family);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--text-color);
    background: rgba(255, 255, 255, 0.02);
}

.tab-btn.active {
    color: var(--text-color);
    background: rgba(108, 99, 255, 0.1);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.tabs-content {
    padding: 4rem;
    position: relative;
    min-height: 400px;
}

.tab-pane {
    display: none;
    animation: fadeIn 0.5s ease-out;
}

.tab-pane.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.pane-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.pane-text p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    max-width: 800px;
}

/* Tab 1: Cards */
.schedule-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--surface-color-light);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(108, 99, 255, 0.2);
    border-color: rgba(108, 99, 255, 0.3);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.card .time {
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

/* Features List for Tab 2 & 3 */
.features-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.feature-item {
    background: rgba(255, 255, 255, 0.02);
    padding: 1.5rem;
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
}

.feature-item:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateX(5px);
}

.feature-item h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.feature-item p {
    margin-bottom: 0;
    font-size: 1rem;
}

/* Footer */
footer {
    text-align: center;
    padding: 3rem 5%;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: 4rem;
}

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

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .tabs-header {
        flex-direction: column;
    }
    
    .tab-btn {
        text-align: left;
        padding: 1rem 1.5rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    .tab-btn.active::after {
        width: 3px;
        height: 100%;
        left: 0;
        top: 0;
        bottom: auto;
    }
    
    .tabs-content {
        padding: 2rem;
    }
    
    .pane-text h2 {
        font-size: 2rem;
    }
}