:root {
    --bg-color: #05050f;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.08);
    --primary: #9d00ff;
    --secondary: #00d2ff;
    --text-main: #ffffff;
    --text-muted: #a0a0b0;
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    overflow-x: hidden;
}

#particles-js {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    padding: 0 20px;
}

.logo-container {
    margin-bottom: 30px;
}

.logo {
    width: 150px;
    height: auto;
    filter: drop-shadow(0 0 15px var(--primary));
    animation: float 4s ease-in-out infinite;
}

.small-logo {
    width: 80px;
    margin-bottom: 15px;
}

@keyframes float {
    0% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
    100% { transform: translateY(0); }
}

.glitch {
    font-size: 5rem;
    font-weight: 800;
    position: relative;
    color: white;
    text-transform: uppercase;
    text-shadow: 0 0 20px rgba(157, 0, 255, 0.5);
    margin-bottom: 20px;
}

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

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    font-size: 2rem;
    color: var(--secondary);
    animation: bounce 2s infinite;
    cursor: pointer;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-20px); }
    60% { transform: translateY(-10px); }
}

/* Navigation */
.category-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(5, 5, 15, 0.8);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--card-border);
    padding: 20px 0;
}

.category-nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    padding: 0 20px;
}

.category-nav li {
    padding: 10px 25px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    color: var(--text-muted);
}

.category-nav li:hover, .category-nav li.active {
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    color: white;
    border-color: transparent;
    box-shadow: 0 0 15px rgba(157, 0, 255, 0.4);
    transform: translateY(-2px);
}

/* Events Container */
.events-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 50px 20px;
}

.category-section {
    margin-bottom: 100px;
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.category-section.visible {
    opacity: 1;
    transform: translateY(0);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--card-border);
}

.category-image {
    width: 120px;
    height: 120px;
    border-radius: 20px;
    object-fit: cover;
    box-shadow: 0 0 25px rgba(157, 0, 255, 0.3);
    border: 2px solid var(--card-border);
}

.category-header h2 {
    font-size: 2.5rem;
    background: linear-gradient(to right, #fff, var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

/* Cards */
.event-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 30px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    box-shadow: var(--glass-shadow);
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.event-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.event-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5), 0 0 20px rgba(157, 0, 255, 0.2);
}

.event-card:hover::before {
    transform: scaleX(1);
}

.event-card .icon {
    font-size: 2rem;
    color: var(--secondary);
    background: rgba(0, 210, 255, 0.1);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 15px;
    margin-bottom: 10px;
}

.event-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: #fff;
}

.event-card p {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.6;
    flex-grow: 1;
}

/* Footer */
footer {
    text-align: center;
    padding: 50px 20px;
    background: rgba(0, 0, 0, 0.5);
    border-top: 1px solid var(--card-border);
    margin-top: 50px;
}

/* Responsive */
@media (max-width: 768px) {
    .glitch { font-size: 3rem; }
    .subtitle { font-size: 1.1rem; }
    .category-header { flex-direction: column; text-align: center; }
    .category-header h2 { font-size: 1.8rem; }
}