/* Custom styles for dGeim website */

/* Smooth scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 4px;
}
.dark ::-webkit-scrollbar-thumb {
    background: #475569;
}

/* Hero canvas */
#hero-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

/* Scroll animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* Gradient text */
.text-gradient {
    background: linear-gradient(135deg, #1d4ed8, #2dd4bf);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Card hover effects */
.card-hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card-hover:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.15);
}
.dark .card-hover:hover {
    box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.4);
}

/* Hero gradient orbs */
.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 8s ease-in-out infinite;
}
.dark .hero-orb {
    opacity: 0.15;
}

/* Glow effect for buttons */
.btn-glow {
    position: relative;
    overflow: hidden;
}
.btn-glow::after {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, #1d4ed8, #2dd4bf, #1d4ed8);
    border-radius: inherit;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
    filter: blur(8px);
}
.btn-glow:hover::after {
    opacity: 0.6;
}

/* Grid pattern background */
.bg-grid {
    background-image:
        linear-gradient(rgba(37, 99, 235, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37, 99, 235, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}
.dark .bg-grid {
    background-image:
        linear-gradient(rgba(37, 99, 235, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37, 99, 235, 0.06) 1px, transparent 1px);
}

/* Screenshot gallery placeholder shimmer */
.shimmer {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}
.dark .shimmer {
    background: linear-gradient(90deg, #1f2937 25%, #374151 50%, #1f2937 75%);
    background-size: 200% 100%;
}
@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Tech logo grid */
.tech-icon {
    transition: transform 0.3s ease, filter 0.3s ease;
}
.tech-icon:hover {
    transform: scale(1.1);
}

/* Page transitions */
main {
    animation: fadeIn 0.4s ease-out;
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Particle connection lines */
.particle-line {
    stroke: currentColor;
    stroke-width: 0.5;
    opacity: 0.15;
}