/* 
 * ULTRA-LUX DESIGN SYSTEM 2026
 * iBooKey Premium Aesthetics
 */

:root {
    --lux-gold: #C5A059;
    --lux-gold-deep: #a68443;
    --lux-navy: #02040a;
    --lux-charcoal: #1a1a1c;
    --lux-off-white: #fdfcf9;
    --lux-glass: rgba(255, 255, 255, 0.7);
    --lux-glass-dark: rgba(2, 4, 10, 0.85);
    --lux-border: rgba(197, 160, 89, 0.2);
    --lux-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
    --lux-transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 1. Global Refinement */
body {
    background-color: var(--lux-off-white);
    color: var(--lux-charcoal);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* 2. Premium Typography */
h1,
h2,
h3,
.lux-heading {
    font-family: 'Playfair Display', serif;
    font-weight: 500;
    letter-spacing: -0.02em;
    color: var(--lux-navy);
}

.editorial-accent {
    font-family: 'Cormorant Garamond', serif;
    font-style: italic;
    color: var(--lux-gold);
}

/* 3. Glassmorphic Header Enhancement */
.site-header {
    background: var(--lux-glass) !important;
    backdrop-filter: blur(25px) saturate(180%) !important;
    -webkit-backdrop-filter: blur(25px) saturate(180%) !important;
    border-bottom: 1px solid var(--lux-border) !important;
    height: 90px !important;
}

/* 4. Ultra-Lux Card States */
.card-premium,
.bento-card,
.methodology-card {
    border: 1px solid rgba(0, 0, 0, 0.03) !important;
    background: #ffffff !important;
    transition: var(--lux-transition) !important;
    position: relative;
    overflow: hidden;
}

.card-premium:hover {
    transform: translateY(-15px) !important;
    box-shadow: 0 40px 80px rgba(197, 160, 89, 0.12) !important;
    border-color: var(--lux-border) !important;
}

/* 5. Animated Gradients & Glows */
.lux-glow {
    position: absolute;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(197, 160, 89, 0.1) 0%, transparent 70%);
    filter: blur(40px);
    pointer-events: none;
    z-index: -1;
}

/* 6. Section Transitions */
.section-bridge {
    position: relative;
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.section-bridge::before {
    content: '';
    position: absolute;
    width: 1px;
    height: 100%;
    background: linear-gradient(to bottom, transparent, var(--lux-gold), transparent);
    opacity: 0.3;
}

/* 7. Podcast Section Enhancement */
.podcast-cover-art {
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.2) !important;
    border: 10px solid #fff;
    transition: var(--lux-transition);
}

.podcast-cover-art:hover {
    transform: scale(1.02) rotate(-1deg);
}

/* 8. Premium Button States */
.btn-premium {
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-premium::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
    z-index: -1;
}

.btn-premium:hover::before {
    width: 300%;
    height: 300%;
}

/* 9. Scroll Progress Enhancements */
#scroll-progress-bar {
    background: linear-gradient(90deg, var(--lux-gold), var(--lux-gold-deep)) !important;
}

/* 10. Horizontal Marquee Refinement */
.marquee-content span {
    font-family: 'Public Sans', sans-serif;
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 5px;
    opacity: 0.4;
    transition: var(--lux-transition);
    text-transform: uppercase;
}

.marquee-content span:hover {
    opacity: 1;
    color: var(--lux-gold);
    transform: scale(1.1);
}

/* Cinematic Spotlight */
.spotlight-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at var(--x, 50%) var(--y, 50%), transparent 10%, rgba(0, 0, 0, 0.02) 40%, rgba(0, 0, 0, 0.05) 100%);
    pointer-events: none;
    z-index: 9998;
}

.lux-grain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('https://www.transparenttextures.com/patterns/stardust.png');
    opacity: 0.03;
    pointer-events: none;
    z-index: 9999;
}

/* Signature Styling */
.signature-elegant {
    font-family: 'Reenie Beanie', cursive !important;
    font-size: 3rem !important;
    color: var(--lux-navy) !important;
    opacity: 0.9 !important;
}