/* Ultra Modern Dark Theme Variables */
:root {
    /* Core Colors - Dark Theme */
    --bg-primary: #000000;
    --bg-secondary: rgba(10, 10, 15, 0.8);
    --bg-card: rgba(20, 20, 30, 0.3);
    --bg-glass: rgba(255, 255, 255, 0.03);
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-tertiary: rgba(255, 255, 255, 0.5);
    --text-accent: #00d4ff;
    
    /* Accent Colors */
    --accent-primary: #00d4ff;
    --accent-secondary: #6366f1;
    --accent-gradient: linear-gradient(135deg, #00d4ff 0%, #6366f1 50%, #8b5cf6 100%);
    
    /* Borders & Effects */
    --border-glass: rgba(255, 255, 255, 0.1);
    --border-glow: rgba(0, 212, 255, 0.3);
    --shadow-glow: 0 0 30px rgba(0, 212, 255, 0.2);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, rgba(99, 102, 241, 0.1) 100%);
    --gradient-secondary: linear-gradient(135deg, rgba(0, 0, 0, 0.8) 0%, rgba(20, 20, 30, 0.9) 100%);
    --gradient-card: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    
    /* Animation Variables */
    --animation-speed: 0.3s;
    --animation-ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Glass Morphism Base */
.glass {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
}

.glass-card {
    background: var(--gradient-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    transition: all var(--animation-speed) var(--animation-ease);
}

.glass-card:hover {
    border-color: var(--border-glow);
    box-shadow: var(--shadow-glow);
    transform: translateY(-8px);
}

/* Glow Effects */
.glow-border {
    position: relative;
    overflow: hidden;
}

.glow-border::before {
    content: '';
    position: absolute;
    inset: 0;
    padding: 2px;
    background: var(--accent-gradient);
    border-radius: inherit;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: xor;
    animation: glow-rotate 3s linear infinite;
}

@keyframes glow-rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Animated Borders */
.animated-border {
    border: 2px solid transparent;
    background: linear-gradient(var(--bg-card), var(--bg-card)) padding-box,
                var(--accent-gradient) border-box;
    animation: border-flow 2s ease-in-out infinite alternate;
}

@keyframes border-flow {
    0% { border-image-source: linear-gradient(0deg, #00d4ff, #6366f1); }
    50% { border-image-source: linear-gradient(180deg, #6366f1, #8b5cf6); }
    100% { border-image-source: linear-gradient(360deg, #8b5cf6, #00d4ff); }
}

/* Responsive Grid System */
.responsive-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
}

.responsive-grid-2 {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 400px), 1fr));
}

/* Mobile Responsive Adjustments */
@media (max-width: 768px) {
    .responsive-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .responsive-grid > * {
        min-height: auto;
        padding: 1rem;
    }
    
    .glass-card {
        border-radius: 12px;
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .responsive-grid {
        grid-template-columns: 1fr;
    }
}