/* 
 * Podcast Premium Pro - Enhanced Styles with Glass Morphism - v1.0.0
 * Modern design with dark theme support and glass effects
 * Dependencies: TailwindCSS
 * Version: 1.0.0
 * Release: Foundation
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --app-version: "1.0.0";
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --hero-gradient: linear-gradient(135deg, #1e3a8a 0%, #3730a3 50%, #581c87 100%);
    --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
}

* {
    font-family: 'Inter', sans-serif;
}

.gradient-bg {
    background: var(--hero-gradient);
}

.primary-gradient {
    background: var(--primary-gradient);
}

/* Glass Morphism Effects */
.glass-effect {
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--glass-shadow);
}

.glass-card {
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 16px;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
}

.glass-pricing {
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
}

.hero-pattern {
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
}

.feature-card {
    transition: all 0.3s ease;
    border: 1px solid rgba(229, 231, 235, 0.5);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-shadow);
}

.pricing-card {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--card-shadow);
}

.pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
}

.btn-primary {
    background: var(--primary-gradient);
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.4);
}

.loading-spinner {
    border: 3px solid #f3f3f3;
    border-top: 3px solid #3498db;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Dark theme glass effects */
.dark .glass-effect {
    background: rgba(17, 24, 39, 0.2);
    border-color: rgba(75, 85, 99, 0.3);
}

.dark .glass-card {
    background: rgba(17, 24, 39, 0.15);
    border-color: rgba(75, 85, 99, 0.25);
}

.dark .glass-pricing {
    background: rgba(17, 24, 39, 0.12);
    border-color: rgba(75, 85, 99, 0.2);
}

.dark .feature-card {
    background: rgba(17, 24, 39, 0.8);
    border-color: rgba(75, 85, 99, 0.3);
}

.dark .pricing-card {
    background: rgba(17, 24, 39, 0.9);
    border-color: rgba(75, 85, 99, 0.3);
}

/* Version indicator */
.version-tag::after {
    content: " v" var(--app-version);
    font-size: 0.75rem;
    opacity: 0.7;
}