/* Modern Dark Theme Variables */
:root {
    --bg-color: #0a0a0e;
    --primary-color: #6366f1; /* Indigo-500 */
    --secondary-color: #a855f7; /* Purple-500 */
    --accent-color: #ec4899; /* Pink-500 */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    overflow-x: hidden;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-color);
}
::-webkit-scrollbar-thumb {
    background: #333;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* Background Gradients */
.bg-gradient-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}
.glow-blob {
    position: absolute;
    filter: blur(80px);
    opacity: 0.4;
    animation: blob-float 10s infinite alternate cubic-bezier(0.4, 0, 0.2, 1);
}
.glow-1 {
    top: -10%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary-color), transparent 70%);
}
.glow-2 {
    bottom: -10%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--secondary-color), transparent 70%);
    animation-delay: -5s;
}
.glow-3 {
    top: 40%;
    left: 40%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--accent-color), transparent 70%);
    animation-delay: -2s;
}

@keyframes blob-float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(30px, 50px) scale(1.1); }
}

/* Glassmorphism Utilities */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.glass-panel:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

/* Typography Effects */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: gradient-shift 5s ease infinite;
}

@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Navbar */
.nav-glass {
    background: rgba(10, 10, 14, 0.8);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
}

/* Preloader */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-color);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}
.loader {
    width: 48px;
    height: 48px;
    border: 3px solid #FFF;
    border-radius: 50%;
    display: inline-block;
    position: relative;
    box-sizing: border-box;
    animation: rotation 1s linear infinite;
}
.loader::after {
    content: '';  
    box-sizing: border-box;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 3px solid transparent;
    border-bottom-color: var(--primary-color);
}
@keyframes rotation {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Utility Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}
.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }

/* Custom Video Container */
.video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 */
    height: 0;
    overflow: hidden;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
}
.video-wrapper video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}