/* ==========================================
   Dark Glassmorphism Pro Effects
   Frosted glass, neon accents, particles
   ========================================== */

/* ==========================================
   Frosted Glass Cards
   ========================================== */
.glass-card-dark {
    background: rgba(17, 25, 40, 0.75);
    /* Darker, more opaque base */
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.08);
    /* More subtle border */
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    /* Highlight top border */
    border-radius: var(--radius-2xl);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.36);
    /* Deep, clear shadow */
    transition: all var(--transition-base);
}

.glass-card-dark:hover {
    background: rgba(17, 25, 40, 0.85);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.45);
    transform: translateY(-4px) scale(1.01);
    /* Subtle scale up */
}

.glass-card-subtle {
    background: var(--glass-subtle);
    backdrop-filter: var(--blur-sm) saturate(120%);
    -webkit-backdrop-filter: var(--blur-sm) saturate(120%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
}

.glass-card-strong {
    background: var(--glass-strong);
    backdrop-filter: var(--blur-lg) saturate(180%);
    -webkit-backdrop-filter: var(--blur-lg) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-2xl);
}

/* ==========================================
   Neon Borders & Accents
   ========================================== */
.neon-border-cyan {
    border: 1px solid rgba(6, 182, 212, 0.5);
    box-shadow: 0 0 15px rgba(6, 182, 212, 0.3), inset 0 0 10px rgba(6, 182, 212, 0.1);
}

.neon-border-purple {
    border: 1px solid var(--neon-purple);
    box-shadow: var(--glow-purple), inset var(--glow-purple);
}

.neon-border-blue {
    border: 1px solid var(--neon-blue);
    box-shadow: var(--glow-blue), inset var(--glow-blue);
}

.neon-border-pink {
    border: 1px solid var(--neon-pink);
    box-shadow: var(--glow-pink), inset var(--glow-pink);
}

/* Neon bottom border accent */
.neon-accent-bottom {
    position: relative;
}

.neon-accent-bottom::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
    box-shadow: 0 0 10px var(--neon-cyan);
}

/* ==========================================
   Neon Glow Text
   ========================================== */
.neon-text-cyan {
    color: var(--neon-cyan);
    text-shadow: 0 0 20px rgba(6, 182, 212, 0.6);
}

.neon-text-purple {
    color: var(--neon-purple);
    text-shadow: var(--glow-purple);
}

.neon-text-blue {
    color: var(--neon-blue);
    text-shadow: var(--glow-blue);
}

/* ==========================================
   Glass Buttons
   ========================================== */
.glass-button {
    background: var(--glass-standard);
    backdrop-filter: var(--blur-md);
    -webkit-backdrop-filter: var(--blur-md);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 12px 32px;
    border-radius: var(--radius-full);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--glass-shadow);
}

.glass-button:hover {
    background: var(--glass-strong);
    box-shadow: var(--glass-shadow-lg);
    transform: translateY(-2px);
}

.glass-button-neon {
    background: var(--glass-standard);
    backdrop-filter: var(--blur-md);
    -webkit-backdrop-filter: var(--blur-md);
    border: 1px solid var(--neon-cyan);
    color: var(--neon-cyan);
    box-shadow: var(--glow-cyan);
}

.glass-button-neon:hover {
    background: var(--glass-strong);
    box-shadow: var(--glow-cyan), 0 0 60px rgba(6, 182, 212, 0.4);
}

/* ==========================================
   Grain Texture Overlay
   ========================================== */
.grain-texture {
    position: relative;
}

.grain-texture::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
    z-index: 1;
}

/* ==========================================
   Particle Background
   ========================================== */
.particle-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: var(--z-particles);
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--neon-cyan);
    border-radius: 50%;
    box-shadow: 0 0 4px var(--neon-cyan);
    opacity: 0.6;
    animation: float-particle 20s linear infinite;
}

.particle:nth-child(2) {
    background: var(--neon-purple);
    box-shadow: 0 0 4px var(--neon-purple);
    animation-duration: 25s;
    animation-delay: 2s;
}

.particle:nth-child(3) {
    background: var(--neon-blue);
    box-shadow: 0 0 4px var(--neon-blue);
    animation-duration: 18s;
    animation-delay: 4s;
}

.particle:nth-child(4) {
    opacity: 0.4;
    animation-duration: 22s;
    animation-delay: 6s;
}

.particle:nth-child(5) {
    background: var(--neon-pink);
    box-shadow: 0 0 4px var(--neon-pink);
    opacity: 0.5;
    animation-duration: 30s;
    animation-delay: 8s;
}

@keyframes float-particle {
    0% {
        transform: translate(0, 100vh) scale(0);
        opacity: 0;
    }

    10% {
        opacity: 0.6;
    }

    90% {
        opacity: 0.6;
    }

    100% {
        transform: translate(100vw, -100vh) scale(1);
        opacity: 0;
    }
}

/* ==========================================
   Depth Shadows
   ========================================== */
.depth-shadow-sm {
    box-shadow: var(--depth-shadow-sm);
}

.depth-shadow-md {
    box-shadow: var(--depth-shadow-md);
}

.depth-shadow-lg {
    box-shadow: var(--depth-shadow-lg);
}

/* ==========================================
   Glow on Hover
   ========================================== */
.glow-hover-cyan:hover {
    box-shadow: var(--glow-cyan);
}

.glow-hover-purple:hover {
    box-shadow: var(--glow-purple);
}

.glow-hover-blue:hover {
    box-shadow: var(--glow-blue);
}

/* ==========================================
   Frosted Glass Navbar
   ========================================== */
.glass-nav {
    background: var(--navbar-bg);
    backdrop-filter: var(--blur-md) saturate(150%);
    -webkit-backdrop-filter: var(--blur-md) saturate(150%);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

/* ==========================================
   Dark Gradient Overlays
   ========================================== */
.dark-gradient-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
            rgba(6, 182, 212, 0.05) 0%,
            rgba(139, 92, 246, 0.05) 50%,
            rgba(236, 72, 153, 0.05) 100%);
    pointer-events: none;
}

.radial-glow {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 30%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

/* ==========================================
   Subtle Scroll Animations
   ========================================== */
@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fade-in-up 0.6s ease-out;
}

/* ==========================================
   Responsive & Accessibility
   ========================================== */
@media (prefers-reduced-motion: reduce) {

    .particle,
    .fade-in-up {
        animation: none;
    }

    .glass-card-dark:hover,
    .glass-button:hover {
        transform: none;
    }
}

/* Reduced transparency for better readability */
@media (prefers-contrast: high) {

    .glass-card-dark,
    .glass-button {
        background: var(--dark-elevated);
        backdrop-filter: none;
        border: 2px solid var(--neon-cyan);
    }
}

/* ==========================================
   New Dark Theme Enhancements
   ========================================== */

/* Make Hero Transparent in Dark Mode */
[data-theme="dark"] .hero,
[data-theme="dark"] .hero-background {
    background: transparent !important;
}

/* 1. Aurora Borealis Background */
[data-theme="dark"] .aurora-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background:
        radial-gradient(circle at 50% 50%, rgba(6, 182, 212, 0.05), transparent 60%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.05), transparent 50%),
        radial-gradient(circle at 20% 80%, rgba(236, 72, 153, 0.05), transparent 50%);
    filter: blur(80px);
    animation: aurora-move 20s infinite alternate;
    pointer-events: none;
}

@keyframes aurora-move {
    0% {
        background-position: 0% 0%;
        transform: scale(1);
    }

    100% {
        background-position: 100% 100%;
        transform: scale(1.1);
    }
}

/* 2. Spotlight Focus Effect */
[data-theme="dark"] .glass-card-dark,
[data-theme="dark"] .feature-card,
[data-theme="dark"] .blog-card,
[data-theme="dark"] .developer-card {
    position: relative;
    overflow: hidden;
}

[data-theme="dark"] .glass-card-dark::before,
[data-theme="dark"] .feature-card::before,
[data-theme="dark"] .blog-card::before,
[data-theme="dark"] .developer-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(800px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
            rgba(255, 255, 255, 0.06),
            transparent 40%);
    z-index: 1;
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

[data-theme="dark"] .glass-card-dark:hover::before,
[data-theme="dark"] .feature-card:hover::before,
[data-theme="dark"] .blog-card:hover::before,
[data-theme="dark"] .developer-card:hover::before {
    opacity: 1;
}

/* 3. Neon Pulse Borders */
[data-theme="dark"] .btn-primary {
    animation: neon-pulse 3s infinite;
}

@keyframes neon-pulse {
    0% {
        box-shadow: 0 0 5px rgba(26, 115, 232, 0.5);
    }

    50% {
        box-shadow: 0 0 20px rgba(26, 115, 232, 0.8), 0 0 10px rgba(26, 115, 232, 0.4);
    }

    100% {
        box-shadow: 0 0 5px rgba(26, 115, 232, 0.5);
    }
}

/* 4. Glitch Text Effect */
[data-theme="dark"] .glitch-text {
    position: relative;
    color: var(--color-white);
}

[data-theme="dark"] .glitch-text::before,
[data-theme="dark"] .glitch-text::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.8;
}

[data-theme="dark"] .glitch-text::before {
    color: #0ff;
    z-index: -1;
    clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
    transform: translate(-2px, -2px);
    animation: glitch-anim-1 2.5s infinite linear alternate-reverse;
}

[data-theme="dark"] .glitch-text::after {
    color: #f0f;
    z-index: -2;
    clip-path: polygon(0 60%, 100% 60%, 100% 100%, 0 100%);
    transform: translate(2px, 2px);
    animation: glitch-anim-2 2s infinite linear alternate-reverse;
}

@keyframes glitch-anim-1 {
    0% {
        clip-path: polygon(0 20%, 100% 20%, 100% 30%, 0 30%);
        transform: translate(-2px, 1px);
    }

    20% {
        clip-path: polygon(0 60%, 100% 60%, 100% 65%, 0 65%);
        transform: translate(2px, -1px);
    }

    40% {
        clip-path: polygon(0 40%, 100% 40%, 100% 50%, 0 50%);
        transform: translate(-2px, 2px);
    }

    60% {
        clip-path: polygon(0 80%, 100% 80%, 100% 90%, 0 90%);
        transform: translate(2px, -2px);
    }

    80% {
        clip-path: polygon(0 10%, 100% 10%, 100% 20%, 0 20%);
        transform: translate(-1px, 1px);
    }

    100% {
        clip-path: polygon(0 50%, 100% 50%, 100% 60%, 0 60%);
        transform: translate(1px, -1px);
    }
}

@keyframes glitch-anim-2 {
    0% {
        clip-path: polygon(0 10%, 100% 10%, 100% 20%, 0 20%);
        transform: translate(2px, 1px);
    }

    20% {
        clip-path: polygon(0 70%, 100% 70%, 100% 80%, 0 80%);
        transform: translate(-2px, -1px);
    }

    40% {
        clip-path: polygon(0 30%, 100% 30%, 100% 40%, 0 40%);
        transform: translate(2px, 2px);
    }

    60% {
        clip-path: polygon(0 90%, 100% 90%, 100% 100%, 0 100%);
        transform: translate(-2px, -2px);
    }

    80% {
        clip-path: polygon(0 50%, 100% 50%, 100% 60%, 0 60%);
        transform: translate(1px, 1px);
    }

    100% {
        clip-path: polygon(0 20%, 100% 20%, 100% 30%, 0 30%);
        transform: translate(-1px, -1px);
    }
}