/* --- Global & Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Rajdhani:wght@300;500;700&display=swap');

:root {
    --neon-pink: #ff2a6d;
    --neon-blue: #05d9e8;
    --neon-purple: #d900ff;
    --dark-bg: #050505;
    --glass-border: rgba(255, 255, 255, 0.1);
}

body {
    font-family: 'Rajdhani', sans-serif;
    background-color: var(--dark-bg);
    color: #e0e0e0;
    margin: 0;
    overflow-x: hidden; /* Prevents side-scroll on mobile */
    -webkit-tap-highlight-color: transparent;
}

/* --- BACKGROUNDS --- */

/* 1. Cyber Grid (Deepest Layer) */
.cyber-grid-bg {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    background: 
        linear-gradient(rgba(5, 217, 232, 0.1) 1px, transparent 1px), 
        linear-gradient(90deg, rgba(255, 42, 109, 0.1) 1px, transparent 1px);
    background-size: 40px 40px;
    transform: perspective(500px) rotateX(60deg) translateY(-100px) translateZ(-200px);
    animation: gridMove 20s linear infinite;
    z-index: -3; /* Furthest back */
    pointer-events: none;
}

.bg-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: radial-gradient(circle at 50% 50%, transparent 0%, #050505 90%);
    z-index: -2;
    pointer-events: none;
}

/* 2. Data Streams / Shooting Lines (Animation Layer) */
.data-stream-layer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    pointer-events: none;
    overflow: hidden;
}

.data-line {
    position: absolute;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--neon-blue), transparent);
    opacity: 0;
    filter: drop-shadow(0 0 5px var(--neon-blue));
    animation: shoot-data 4s infinite linear;
}

.data-line:nth-child(even) {
    background: linear-gradient(90deg, transparent, var(--neon-pink), transparent);
    filter: drop-shadow(0 0 5px var(--neon-pink));
}

@keyframes shoot-data {
    0% { left: -20%; opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { left: 120%; opacity: 0; }
}

@keyframes gridMove {
    0% { transform: perspective(500px) rotateX(60deg) translateY(0) translateZ(-200px); }
    100% { transform: perspective(500px) rotateX(60deg) translateY(40px) translateZ(-200px); }
}

/* 3. Neural Particle Canvas (Controlled by JS) */
#neural-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1; /* Behind content, in front of grid */
    pointer-events: none;
}

/* --- NAVBAR --- */
.navbar {
    background: rgba(5, 5, 5, 0.7);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--glass-border);
    transition: 0.3s;
}
.navbar a {
    color: white; text-decoration: none; font-family: 'Orbitron'; 
    letter-spacing: 1px; font-size: 0.9rem; position: relative; transition: 0.3s;
}
.navbar a:hover { color: var(--neon-blue); text-shadow: 0 0 8px var(--neon-blue); }

/* --- MOBILE MENU OVERLAY --- */
.mobile-menu-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100vh;
    background: rgba(5, 5, 5, 0.95);
    backdrop-filter: blur(10px);
    z-index: 999;
    display: flex; flex-direction: column; justify-content: center; align-items: center;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.77, 0, 0.175, 1);
}
.mobile-menu-overlay.active { transform: translateX(0); }
.mobile-menu-overlay a {
    font-size: 2rem; margin: 20px 0; color: white;
    font-family: 'Orbitron'; text-transform: uppercase;
}

/* --- HERO: Responsive Glitch Title --- */
.hero-section {
    min-height: 100vh; display: flex; flex-direction: column; 
    justify-content: center; align-items: center; text-align: center;
    padding-top: 60px;
}

.glitch-title {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(2.5rem, 8vw, 6rem); 
    font-weight: 900; color: white; position: relative;
    text-transform: uppercase; line-height: 1.1;
    margin-bottom: 20px;
}

/* Glitch Animation Keyframes */
.glitch-title::before, .glitch-title::after {
    content: attr(data-text); position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: #050505;
}
.glitch-title::before {
    left: 2px; text-shadow: -2px 0 var(--neon-pink); clip: rect(24px, 550px, 90px, 0);
    animation: glitch-anim-2 3s infinite linear alternate-reverse;
}
.glitch-title::after {
    left: -2px; text-shadow: -2px 0 var(--neon-blue); clip: rect(85px, 550px, 140px, 0);
    animation: glitch-anim 2.5s infinite linear alternate-reverse;
}
@keyframes glitch-anim {
    0% { clip: rect(10px, 9999px, 31px, 0); } 20% { clip: rect(65px, 9999px, 89px, 0); }
    40% { clip: rect(24px, 9999px, 8px, 0); } 60% { clip: rect(90px, 9999px, 5px, 0); }
    80% { clip: rect(9px, 9999px, 68px, 0); } 100% { clip: rect(4px, 9999px, 90px, 0); }
}
@keyframes glitch-anim-2 {
    0% { clip: rect(65px, 9999px, 100px, 0); } 100% { clip: rect(10px, 9999px, 80px, 0); }
}

/* --- CARDS & GRID --- */
.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    width: 100%;
}

.event-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 10px;
    backdrop-filter: blur(5px);
    transition: transform 0.1s, box-shadow 0.3s;
    transform-style: preserve-3d;
    position: relative; overflow: hidden;
}

.event-card.scroll-active {
    box-shadow: 0 0 20px rgba(5, 217, 232, 0.3);
    border-color: var(--neon-blue);
    transform: scale(1.02);
}

.event-card img { width: 100%; border-radius: 10px; transform: translateZ(20px); }
.event-content { padding: 15px; transform: translateZ(30px); }
.event-content h3 { color: white; font-family: 'Orbitron'; margin-bottom: 5px; }
.event-content p { font-size: 0.9rem; color: #aaa; }

/* --- BUTTONS --- */
.btn-cyber {
    background: transparent; border: 1px solid var(--neon-pink);
    color: var(--neon-pink); padding: 12px 30px;
    font-family: 'Orbitron'; text-transform: uppercase; cursor: pointer;
    position: relative; overflow: hidden; transition: 0.3s; z-index: 1; display: inline-block;
}
.btn-cyber::before {
    content: ''; position: absolute; top: 0; left: 0; width: 0%; height: 100%;
    background: var(--neon-pink); z-index: -1;
    transition: 0.3s cubic-bezier(0.77, 0, 0.175, 1); transform: skewX(-15deg); transform-origin: left;
}
.btn-cyber:hover::before { width: 110%; }
.btn-cyber:hover { color: black; box-shadow: 0 0 20px var(--neon-pink); }

/* --- MOBILE SPECIFIC TWEAKS --- */
@media (max-width: 768px) {
    .navbar .container { padding: 10px 20px; }
    .hero-section { padding-top: 100px; padding-bottom: 50px; }
    
    /* On mobile, keep the grid moving but disable 3D tilt for performance */
    .cyber-grid-bg { 
        animation: gridMove 20s linear infinite; 
        background-position: center; 
    }
    
    .event-content { text-align: left; }
    .btn-cyber { width: 100%; text-align: center; margin-bottom: 10px; }
}

/* --- UTILS --- */
.section-fade-in { opacity: 0; transform: translateY(20px); transition: 0.6s ease-out; }
.section-fade-in.visible { opacity: 1; transform: translateY(0); }