/* 
 * Potkasts Public Features
 * Features section, stats, and promotional content
 */

/* ===== FEATURES SECTION ===== */

.features-section {
    padding: 4rem 0;
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border-muted);
    border-bottom: 1px solid var(--color-border-muted);
}

.features-section h2 {
    font-size: var(--font-size-h2);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: 3rem;
    text-align: center;
}

.feature-card {
    background: var(--color-bg-glass);
    border: 1px solid var(--color-border-primary);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(20px);
    box-shadow: 0 10px 40px var(--color-shadow-light);
    height: 100%;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-brand-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px var(--color-shadow-primary);
    border-color: var(--color-brand-primary);
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--gradient-brand-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    box-shadow: 0 10px 30px var(--color-shadow-primary);
}

.feature-card h3 {
    font-size: var(--font-size-h4);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    flex: 1;
}

/* ===== STATS SECTION ===== */

.stats-section {
    padding: 3rem 0;
    background: var(--color-bg-primary);
}

.stat-item {
    padding: 1.5rem 1rem;
    text-align: center;
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-4px);
}

.stat-number {
    font-size: var(--font-size-h1);
    font-weight: var(--font-weight-extrabold);
    color: var(--color-brand-primary);
    margin-bottom: 0.5rem;
    line-height: 1;
    background: var(--gradient-brand-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ===== TESTIMONIALS SECTION ===== */

.testimonials-section {
    padding: 4rem 0;
    background: var(--color-bg-tertiary);
}

.testimonials-section h2 {
    font-size: var(--font-size-h2);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: 3rem;
    text-align: center;
}

.testimonial-card {
    background: var(--color-bg-glass);
    border: 1px solid var(--color-border-primary);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(20px);
    box-shadow: 0 10px 40px var(--color-shadow-light);
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 60px var(--color-shadow-primary);
}

.testimonial-content {
    flex: 1;
    font-style: italic;
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: 1.5rem;
    position: relative;
}

.testimonial-content::before {
    content: '"';
    font-size: 3rem;
    color: var(--color-brand-primary);
    position: absolute;
    top: -1rem;
    left: -1rem;
    font-family: serif;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.testimonial-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-brand-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: var(--font-weight-bold);
    font-size: 1.25rem;
}

.testimonial-info h4 {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: 0.25rem;
}

.testimonial-info p {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ===== CTA SECTION ===== */

.cta-section {
    padding: 4rem 0;
    background: var(--gradient-bg-primary);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 20%, rgba(124, 58, 237, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(59, 130, 246, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.cta-section h2 {
    font-size: var(--font-size-h2);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
    line-height: var(--line-height-relaxed);
}

.cta-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

/* ===== FAQ SECTION ===== */

.faq-section {
    padding: 4rem 0;
    background: var(--color-bg-secondary);
}

.faq-section h2 {
    font-size: var(--font-size-h2);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: 3rem;
    text-align: center;
}

.faq-item {
    background: var(--color-bg-glass);
    border: 1px solid var(--color-border-primary);
    border-radius: 12px;
    margin-bottom: 1rem;
    backdrop-filter: blur(20px);
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: var(--color-brand-primary);
}

.faq-question {
    width: 100%;
    padding: 1.5rem;
    background: none;
    border: none;
    text-align: left;
    color: var(--color-text-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: var(--color-brand-purple-alpha);
}

.faq-question i {
    transition: transform 0.3s ease;
    color: var(--color-brand-primary);
}

.faq-question[aria-expanded="true"] i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-answer-content {
    padding: 0 1.5rem 1.5rem;
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

.faq-answer.expanded {
    max-height: 300px;
}

/* ===== RESPONSIVE DESIGN ===== */

@media (max-width: 768px) {
    .features-section {
        padding: 2rem 0;
    }
    
    .features-section h2 {
        font-size: var(--font-size-h3);
        margin-bottom: 2rem;
    }
    
    .feature-card {
        padding: 1.5rem;
    }
    
    .feature-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }
    
    .stats-section {
        padding: 2rem 0;
    }
    
    .stat-number {
        font-size: var(--font-size-h2);
    }
    
    .cta-section {
        padding: 2rem 0;
    }
    
    .cta-section h2 {
        font-size: var(--font-size-h3);
    }
    
    .cta-section p {
        font-size: var(--font-size-base);
    }
    
    .cta-actions {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .testimonials-section {
        padding: 2rem 0;
    }
    
    .testimonial-card {
        padding: 1.5rem;
    }
    
    .faq-section {
        padding: 2rem 0;
    }
    
    .faq-question {
        padding: 1rem;
        font-size: var(--font-size-sm);
    }
    
    .faq-answer-content {
        padding: 0 1rem 1rem;
    }
}

@media (max-width: 480px) {
    .feature-card {
        padding: 1rem;
    }
    
    .feature-icon {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }
    
    .stat-item {
        padding: 1rem 0.5rem;
    }
    
    .stat-number {
        font-size: var(--font-size-h3);
    }
    
    .testimonial-content::before {
        font-size: 2rem;
        top: -0.5rem;
        left: -0.5rem;
    }
    
    .testimonial-avatar {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}

/* ===== ANIMATIONS ===== */

.animate-counter {
    animation: countUp 2s ease-out;
}

@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-feature {
    animation: slideInUp 0.6s ease-out;
}

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

/* Staggered animations for features */
.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }

/* ===== DARK MODE ENHANCEMENTS ===== */

.feature-card,
.testimonial-card,
.faq-item {
    box-shadow: 
        0 10px 40px var(--color-shadow-light),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.feature-card:hover,
.testimonial-card:hover {
    box-shadow: 
        0 20px 60px var(--color-shadow-primary),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

/* ===== ACCESSIBILITY IMPROVEMENTS ===== */

.faq-question:focus {
    outline: 2px solid var(--color-focus-ring);
    outline-offset: -2px;
}

.feature-card:focus-within,
.testimonial-card:focus-within {
    outline: 2px solid var(--color-focus-ring);
    outline-offset: 2px;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .feature-card,
    .testimonial-card,
    .stat-item,
    .faq-answer {
        transition: none;
    }
    
    .feature-card:hover,
    .testimonial-card:hover,
    .stat-item:hover {
        transform: none;
    }
}