/* Image Placeholders - CSS-based replacements for missing images */

/* Base placeholder styling */
.image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    border: 2px solid var(--neon-cyan);
    box-shadow: var(--glow-cyan);
    position: relative;
    overflow: hidden;
    color: var(--white);
    font-family: var(--font-heading);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: var(--glow-cyan);
}

.image-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 25% 25%, rgba(0, 255, 255, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(255, 0, 255, 0.3) 0%, transparent 50%),
        linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: placeholderShimmer 3s ease-in-out infinite alternate;
}

.image-placeholder::after {
    content: attr(data-title);
    position: relative;
    z-index: 1;
    font-size: 1.5rem;
    text-align: center;
}

@keyframes placeholderShimmer {
    0% { opacity: 0.5; transform: scale(1); }
    100% { opacity: 1; transform: scale(1.02); }
}

/* Specific placeholder styles */
.cyberpunk-arcade-placeholder {
    background: 
        linear-gradient(135deg, #0a0a0f 0%, #1a1a2e 25%, #16213e 50%, #0f3460 75%, #533483 100%),
        radial-gradient(circle at 30% 30%, rgba(0, 255, 255, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 70% 70%, rgba(255, 0, 255, 0.2) 0%, transparent 50%);
    border-color: var(--neon-cyan);
    box-shadow: var(--glow-cyan);
}

.gaming-setup-placeholder {
    background: 
        linear-gradient(135deg, #0f0f23 0%, #1e1e3f 25%, #2d1b69 50%, #3b1f94 75%, #4c1d95 100%),
        radial-gradient(circle at 40% 60%, rgba(255, 0, 255, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 60% 40%, rgba(0, 255, 0, 0.2) 0%, transparent 50%);
    border-color: var(--neon-pink);
    box-shadow: var(--glow-pink);
}

.vr-gaming-placeholder {
    background: 
        linear-gradient(135deg, #0d1421 0%, #1a2332 25%, #2d4a22 50%, #3d5a2a 75%, #4d6a32 100%),
        radial-gradient(circle at 50% 30%, rgba(0, 255, 0, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 50% 70%, rgba(255, 255, 0, 0.2) 0%, transparent 50%);
    border-color: var(--neon-green);
    box-shadow: var(--glow-green);
}

.neon-arcade-placeholder {
    background: 
        linear-gradient(135deg, #1a1a0a 0%, #2e2e1a 25%, #3e3e16 50%, #4e4e0f 75%, #5e5e08 100%),
        radial-gradient(circle at 25% 75%, rgba(255, 255, 0, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 75% 25%, rgba(255, 0, 255, 0.2) 0%, transparent 50%);
    border-color: var(--neon-yellow);
    box-shadow: var(--glow-yellow);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .image-placeholder::after {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .image-placeholder::after {
        font-size: 1rem;
        letter-spacing: 1px;
    }
}

/* Animation for enhanced visual appeal */
.image-placeholder {
    animation: placeholderPulse 4s ease-in-out infinite;
}

@keyframes placeholderPulse {
    0%, 100% { 
        transform: scale(1);
        filter: brightness(1);
    }
    50% { 
        transform: scale(1.01);
        filter: brightness(1.1);
    }
}