/* 
 * Neil's Academy - Premium Frontend Styles
 * Aesthetic: Dark Mode, Glassmorphism, Luxury Jewelry Vibe
 */

:root {
    /* Luxury Dark Mode Palette */
    --na-bg-base: #050814; /* Deep space/sapphire black */
    --na-bg-surface: rgba(20, 25, 45, 0.4);
    --na-accent-gold: #D4AF37; /* Metallic Gold */
    --na-accent-gold-glow: rgba(212, 175, 55, 0.3);
    --na-accent-sapphire: #0F52BA;
    --na-text-main: #F8FAFC;
    --na-text-muted: #94A3B8;
    
    /* Glassmorphism Variables */
    --na-glass-bg: rgba(255, 255, 255, 0.03);
    --na-glass-border: rgba(255, 255, 255, 0.08);
    --na-glass-blur: blur(16px);
    
    /* Typography */
    --na-font-sans: 'Outfit', 'Inter', system-ui, sans-serif;
    --na-font-serif: 'Playfair Display', serif; /* For luxury headers */
}

/* Global resets for Neil's Academy Pages */
.na-wrapper {
    background-color: var(--na-bg-base);
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(15, 82, 186, 0.15), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(212, 175, 55, 0.08), transparent 25%);
    color: var(--na-text-main);
    font-family: var(--na-font-sans);
    line-height: 1.6;
    min-height: 100vh;
    padding: 2rem;
}

.na-wrapper h1, .na-wrapper h2, .na-wrapper h3 {
    font-family: var(--na-font-serif);
    color: var(--na-text-main);
    font-weight: 600;
    letter-spacing: -0.02em;
}

.na-wrapper h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    background: linear-gradient(135deg, #FFF 0%, var(--na-accent-gold) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}

/* Glassmorphism Cards (Used for Modules, Lessons, Pricing) */
.na-glass-card {
    background: var(--na-glass-bg);
    backdrop-filter: var(--na-glass-blur);
    -webkit-backdrop-filter: var(--na-glass-blur);
    border: 1px solid var(--na-glass-border);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.na-glass-card::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 50%; height: 100%;
    background: linear-gradient(to right, transparent, rgba(255,255,255,0.05), transparent);
    transform: skewX(-20deg);
    transition: 0.5s;
}

.na-glass-card:hover {
    transform: translateY(-5px);
    border-color: rgba(212, 175, 55, 0.3);
    box-shadow: 0 15px 45px rgba(0, 0, 0, 0.4), 0 0 20px var(--na-accent-gold-glow);
}

.na-glass-card:hover::before {
    left: 200%;
}

/* Premium Buttons */
.na-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.na-btn-primary {
    background: linear-gradient(135deg, #BF953F, #FCF6BA, #B38728, #FBF5B7, #AA771C);
    background-size: 200% 200%;
    color: #000;
    font-weight: 700;
    box-shadow: 0 4px 15px var(--na-accent-gold-glow);
    animation: goldShimmer 4s ease infinite;
}

.na-btn-primary:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.5);
}

.na-btn-outline {
    background: transparent;
    color: var(--na-accent-gold);
    border: 1px solid var(--na-accent-gold);
}

.na-btn-outline:hover {
    background: rgba(212, 175, 55, 0.1);
}

/* Lesson Grid */
.na-lesson-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

/* Keyframes */
@keyframes goldShimmer {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}