/**
 * QUANTUM FUSION THEME - ShadowBoard 2.0
 * Crimson meets electric blue. Geometric minimalism. Alien future aesthetics.
 * Operation: Change Theme
 */

:root {
    /* === QUANTUM FUSION COLOR SYSTEM === */
    
    /* Primary Gradient - Crimson → Electric Purple → Cyan */
    --quantum-crimson: #ff0033;
    --quantum-magenta: #cc0066;
    --quantum-purple: #8800cc;
    --quantum-violet: #6633ff;
    --quantum-blue: #0066ff;
    --quantum-cyan: #00ccff;
    
    /* Background Layers - Deep space black */
    --bg-void: #020204;
    --bg-primary: #050508;
    --bg-secondary: #08080c;
    --bg-tertiary: #0c0c12;
    --bg-elevated: #101018;
    --bg-hover: #14141f;
    
    /* Glows */
    --glow-crimson: rgba(255, 0, 51, 0.6);
    --glow-purple: rgba(136, 0, 204, 0.5);
    --glow-blue: rgba(0, 102, 255, 0.5);
    --glow-cyan: rgba(0, 204, 255, 0.4);
    --glow-fusion: rgba(204, 0, 102, 0.5);
    
    /* Legacy compatibility */
    --accent-primary: var(--quantum-crimson);
    --accent-glow: var(--glow-crimson);
    --accent-secondary: var(--quantum-cyan);
    --accent-orange: var(--quantum-purple);
    
    /* Text */
    --text-primary: #e8e8f0;
    --text-secondary: #9090a8;
    --text-muted: #505068;
    --text-quantum: linear-gradient(90deg, var(--quantum-crimson), var(--quantum-purple), var(--quantum-blue));
    
    /* Borders */
    --border-subtle: rgba(255, 255, 255, 0.05);
    --border-glow: var(--quantum-crimson);
    --border-fusion: linear-gradient(90deg, var(--quantum-crimson), var(--quantum-blue));
    
    /* Velvet gradient - quantum void */
    --velvet-gradient: radial-gradient(ellipse at 30% 20%, #0a0812 0%, #050508 40%, #020204 100%);
}

/* === QUANTUM LOGO STYLES === */

.logo-quantum {
    height: 68px;
    width: auto;
    filter: drop-shadow(0 0 10px var(--glow-fusion));
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.logo-quantum:hover {
    filter: drop-shadow(0 0 20px var(--glow-crimson)) 
            drop-shadow(0 0 40px var(--glow-purple))
            drop-shadow(0 0 60px var(--glow-blue));
    transform: scale(1.05);
}

/* Logo container with quantum effect */
.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-container .site-name {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 4px;
    background: linear-gradient(90deg, var(--quantum-crimson), var(--quantum-purple), var(--quantum-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
    animation: quantum-text-shift 8s linear infinite;
    background-size: 200% 100%;
}

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

.logo-container .tagline {
    font-size: 10px;
    letter-spacing: 3px;
    color: var(--text-muted);
    text-transform: uppercase;
}

/* === QUANTUM FUSION HEADER === */

.header.quantum-fusion {
    background: linear-gradient(180deg, 
        rgba(10, 8, 18, 0.98) 0%, 
        rgba(5, 5, 8, 0.95) 100%
    );
    border-bottom: 1px solid transparent;
    background-clip: padding-box;
    position: relative;
}

.header.quantum-fusion::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent, 
        var(--quantum-crimson) 20%, 
        var(--quantum-purple) 50%, 
        var(--quantum-blue) 80%, 
        transparent
    );
    opacity: 0.8;
}

/* === GEOMETRIC BACKGROUND PATTERNS === */

.quantum-grid {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 0;
    opacity: 0.03;
    background-image: 
        linear-gradient(var(--quantum-purple) 1px, transparent 1px),
        linear-gradient(90deg, var(--quantum-purple) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: grid-pulse 10s ease-in-out infinite;
}

@keyframes grid-pulse {
    0%, 100% { opacity: 0.02; }
    50% { opacity: 0.04; }
}

/* Triangular quantum particles */
.quantum-particles {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.quantum-particles::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background-image: 
        radial-gradient(2px 2px at 15% 25%, var(--quantum-crimson), transparent),
        radial-gradient(2px 2px at 35% 65%, var(--quantum-purple), transparent),
        radial-gradient(1px 1px at 55% 15%, var(--quantum-blue), transparent),
        radial-gradient(2px 2px at 75% 45%, var(--quantum-magenta), transparent),
        radial-gradient(1px 1px at 25% 85%, var(--quantum-cyan), transparent),
        radial-gradient(2px 2px at 85% 75%, var(--quantum-violet), transparent),
        radial-gradient(1px 1px at 45% 35%, var(--quantum-crimson), transparent),
        radial-gradient(1px 1px at 65% 95%, var(--quantum-blue), transparent);
    animation: quantum-drift 30s linear infinite;
    opacity: 0.4;
}

@keyframes quantum-drift {
    0% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(-2%, -3%) rotate(2deg); }
    50% { transform: translate(-1%, -5%) rotate(0deg); }
    75% { transform: translate(1%, -2%) rotate(-1deg); }
    100% { transform: translate(0, 0) rotate(0deg); }
}

/* === QUANTUM BUTTONS === */

.btn-quantum {
    background: linear-gradient(135deg, 
        var(--quantum-crimson) 0%, 
        var(--quantum-purple) 50%, 
        var(--quantum-blue) 100%
    );
    background-size: 200% 200%;
    border: none;
    color: #fff;
    padding: 12px 28px;
    font-weight: 600;
    letter-spacing: 1px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.4s ease;
    text-transform: uppercase;
    font-size: 12px;
    position: relative;
    overflow: hidden;
}

.btn-quantum::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.2), 
        transparent
    );
    transition: left 0.5s ease;
}

.btn-quantum:hover {
    background-position: 100% 100%;
    box-shadow: 
        0 0 20px var(--glow-crimson),
        0 0 40px var(--glow-purple),
        0 0 60px var(--glow-blue);
    transform: translateY(-2px);
}

.btn-quantum:hover::before {
    left: 100%;
}

/* === QUANTUM CARDS === */

.quantum-card {
    background: linear-gradient(135deg, 
        rgba(10, 8, 18, 0.9) 0%, 
        rgba(5, 5, 8, 0.95) 100%
    );
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.quantum-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, 
        var(--quantum-crimson), 
        var(--quantum-purple), 
        var(--quantum-blue)
    );
    opacity: 0;
    transition: opacity 0.4s ease;
}

.quantum-card:hover {
    border-color: rgba(136, 0, 204, 0.3);
    box-shadow: 
        0 10px 40px rgba(0, 0, 0, 0.5),
        0 0 30px rgba(136, 0, 204, 0.1);
    transform: translateY(-2px);
}

.quantum-card:hover::before {
    opacity: 1;
}

/* === QUANTUM INPUTS === */

.input-quantum {
    background: rgba(8, 8, 12, 0.8);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    padding: 12px 16px;
    font-family: inherit;
    font-size: 14px;
    border-radius: 4px;
    transition: all 0.3s ease;
    width: 100%;
}

.input-quantum:focus {
    outline: none;
    border-color: var(--quantum-purple);
    box-shadow: 
        0 0 0 3px rgba(136, 0, 204, 0.1),
        0 0 20px rgba(136, 0, 204, 0.2);
}

.input-quantum::placeholder {
    color: var(--text-muted);
}

/* === QUANTUM TEXT EFFECTS === */

.text-quantum {
    background: linear-gradient(90deg, 
        var(--quantum-crimson), 
        var(--quantum-purple), 
        var(--quantum-blue)
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-glow-quantum {
    text-shadow: 
        0 0 10px var(--glow-crimson),
        0 0 20px var(--glow-purple),
        0 0 30px var(--glow-blue);
}

/* === QUANTUM LINKS === */

a.quantum-link {
    color: var(--quantum-purple);
    text-decoration: none;
    position: relative;
    transition: color 0.3s ease;
}

a.quantum-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: linear-gradient(90deg, var(--quantum-crimson), var(--quantum-blue));
    transition: width 0.3s ease;
}

a.quantum-link:hover {
    color: var(--quantum-cyan);
}

a.quantum-link:hover::after {
    width: 100%;
}

/* === THREAD ROW QUANTUM STYLE === */

.thread-row.quantum {
    background: linear-gradient(90deg, 
        rgba(8, 8, 12, 0.6) 0%, 
        rgba(10, 8, 18, 0.4) 100%
    );
    border-left: 3px solid transparent;
    transition: all 0.3s ease;
    position: relative;
}

.thread-row.quantum::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--quantum-crimson), var(--quantum-purple));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.thread-row.quantum:hover::before {
    opacity: 1;
}

.thread-row.quantum:hover {
    background: linear-gradient(90deg, 
        rgba(136, 0, 204, 0.08) 0%, 
        rgba(10, 8, 18, 0.6) 100%
    );
}

/* === SCROLLBAR QUANTUM === */

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--quantum-crimson), var(--quantum-purple));
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--quantum-purple), var(--quantum-blue));
}

/* === QUANTUM BADGES === */

.badge-quantum {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: linear-gradient(135deg, 
        rgba(136, 0, 204, 0.2) 0%, 
        rgba(0, 102, 255, 0.1) 100%
    );
    border: 1px solid rgba(136, 0, 204, 0.3);
    border-radius: 20px;
    font-size: 11px;
    font-weight: 500;
    color: var(--quantum-cyan);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* === SELECTION === */

::selection {
    background: rgba(136, 0, 204, 0.4);
    color: #fff;
}

/* === MOBILE QUANTUM ADJUSTMENTS === */

@media (max-width: 768px) {
    .logo-quantum {
        height: 35px;
    }
    
    .logo-container .site-name {
        font-size: 18px;
        letter-spacing: 2px;
    }
}