/**
 * Slayly Zen - Ultra-Premium Light Theme Design System
 * Psychology: Trust (Indigo), Productivity (Ice-White), Success (Emerald)
 * Version: 1.1.0
 */

:root {
    /* Core Zen Palette */
    --zen-bg: #020617;
    --zen-surface: #0f172a;
    --zen-surface-soft: rgba(255, 255, 255, 0.05);
    --zen-surface-tint: rgba(99, 102, 241, 0.15);
    
    /* Brand Accents */
    --zen-primary: #818cf8; /* Indigo 400 */
    --zen-primary-hover: #6366f1; /* Indigo 500 */
    --zen-primary-glow: rgba(99, 102, 241, 0.25);
    
    --zen-secondary: #38bdf8; /* Sky 400 */
    --zen-secondary-hover: #0ea5e9;
    
    --zen-accent: #a78bfa; /* Violet 400 */
    --zen-accent-glow: rgba(139, 92, 246, 0.25);
    
    /* Text Stack */
    --zen-text: #f8fafc;
    --zen-text-muted: #94a3b8;
    --zen-text-dim: #64748b;
    
    /* Border & Glass */
    --zen-border: rgba(255, 255, 255, 0.1);
    --zen-border-light: rgba(255, 255, 255, 0.05);
    --zen-glass-bg: rgba(2, 6, 23, 0.75);
    --zen-glass-border: rgba(255, 255, 255, 0.1);
    
    /* Shadows - Refined for depth */
    --zen-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
    --zen-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --zen-shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
    --zen-shadow-lg: 0 20px 40px -10px rgba(0, 0, 0, 0.7);
    --zen-shadow-premium: 0 30px 60px -12px rgba(0, 0, 0, 0.8);
    
    /* Gradients */
    --zen-gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --zen-gradient-intelligence: linear-gradient(135deg, #0ea5e9 0%, #6366f1 100%);
    --zen-gradient-soft: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
}

/* Base Body Styling */
body.zen-light {
    background-color: var(--zen-bg) !important;
    color: var(--zen-text) !important;
    font-feature-settings: "cv02", "cv03", "cv04", "cv11";
}

/* --- Premium Component Classes --- */

.zen-card {
    background: var(--zen-surface);
    border: 1px solid var(--zen-border);
    border-radius: 20px;
    box-shadow: var(--zen-shadow);
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

.zen-card:hover {
    box-shadow: var(--zen-shadow-lg);
    transform: translateY(-4px);
    border-color: var(--zen-primary);
}

.zen-glass {
    background: var(--zen-glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--zen-glass-border);
    box-shadow: var(--zen-shadow-md);
}

/* Typography Enhancements */
.zen-heading {
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--zen-text);
    line-height: 1.1;
}

.zen-gradient-text {
    background: var(--zen-gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Buttons */
.zen-btn-primary {
    background: var(--zen-gradient-primary) !important;
    color: white !important;
    border: none !important;
    border-radius: 14px;
    padding: 12px 24px;
    font-weight: 600;
    box-shadow: 0 10px 20px -5px var(--zen-primary-glow);
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.zen-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 25px -5px rgba(99, 102, 241, 0.3);
    filter: brightness(1.05);
}

/* Utility Gradients & Icons */
.zen-icon-box {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--zen-surface-tint);
    border: 1px solid var(--zen-border-light);
    color: var(--zen-primary);
    transition: all 0.3s ease;
}

.zen-card:hover .zen-icon-box {
    background: var(--zen-gradient-primary);
    color: white;
    border-color: transparent;
    transform: scale(1.05);
}

/* Animations */
@keyframes zenFadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.zen-animate-up {
    animation: zenFadeUp 0.6s cubic-bezier(0.23, 1, 0.32, 1) forwards;
}

/* Grid & Layout Utilities */
.zen-grid-pattern {
    background-image: radial-gradient(var(--zen-border) 1px, transparent 1px);
    background-size: 24px 24px;
}