/* ========== FUNCIONALIDADES - CLEAN PREMIUM (APPLE STYLE) ========== */

:root {
    /* Modo Claro */
    --feat-bg: #ffffff;
    --feat-surface: #f9f9fb;
    --feat-border: rgba(60, 60, 67, 0.08);
    --feat-text-primary: #1d1c21;
    --feat-text-secondary: #6c6a70;
    --feat-text-tertiary: #8e8c93;
    --feat-accent-blue: #0071e3;
    --feat-accent-green: #28cd41;
    --feat-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.02);
    --feat-shadow-md: 0 8px 24px rgba(0, 0, 0, 0.04);
    --feat-radius-lg: 24px;
    --feat-radius-md: 16px;
    --feat-radius-sm: 12px;
    --feat-font: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', sans-serif;
    --feat-font-display: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', sans-serif;
    --icon-bg: rgba(0, 113, 227, 0.1);
    --tag-bg: #ffffff;
    --gradient-start: #f0f7ff;
    --gradient-end: #ffffff;
    --badge-shadow: rgba(0, 113, 227, 0.3);
}

/* Modo Oscuro */
[data-theme="dark"] {
    --feat-bg: #000000;
    --feat-surface: #1c1c1e;
    --feat-border: rgba(84, 84, 88, 0.3);
    --feat-text-primary: #ffffff;
    --feat-text-secondary: #8e8c93;
    --feat-text-tertiary: #636366;
    --feat-accent-blue: #0a84ff;
    --feat-accent-green: #30d158;
    --feat-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --feat-shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
    --icon-bg: rgba(10, 132, 255, 0.15);
    --tag-bg: #1c1c1e;
    --gradient-start: #1c1c1e;
    --gradient-end: #000000;
    --badge-shadow: rgba(10, 132, 255, 0.3);
}

.features-premium {
    background-color: var(--feat-bg);
    padding: 80px 0;
    font-family: var(--feat-font);
    color: var(--feat-text-primary);
    line-height: 1.4;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.features-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
}

/* --- Tipografía --- */
.features-premium h1,
.features-premium h2,
.features-premium h3 {
    font-family: var(--feat-font-display);
    font-weight: 500;
    letter-spacing: -0.02em;
}

.features-premium p {
    color: var(--feat-text-secondary);
    transition: color 0.3s ease;
}

/* --- Encabezado --- */
.features-header {
    text-align: center;
    margin-bottom: 56px;
}

.features-subtitle {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--feat-text-secondary);
    margin-bottom: 16px;
    transition: color 0.3s ease;
}

.features-subtitle i {
    margin-right: 6px;
    opacity: 0.7;
}

.features-title {
    font-size: clamp(2.2rem, 5vw, 3.2rem);
    font-weight: 600;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
    color: var(--feat-text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
    transition: color 0.3s ease;
}

.version-badge {
    background: var(--feat-surface);
    color: var(--feat-text-primary);
    padding: 6px 18px;
    border-radius: 40px;
    font-size: 1.1rem;
    font-weight: 500;
    border: 1px solid var(--feat-border);
    box-shadow: var(--feat-shadow-sm);
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}

.features-description {
    font-size: 1.2rem;
    color: var(--feat-text-secondary);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.5;
    font-weight: 400;
    transition: color 0.3s ease;
}

/* --- Grid de funcionalidades --- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 56px;
}

.feature-card {
    background: var(--feat-surface);
    border: 1px solid var(--feat-border);
    border-radius: var(--feat-radius-md);
    padding: 28px;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--feat-shadow-md);
    border-color: var(--feat-accent-blue);
}

[data-theme="dark"] .feature-card:hover {
    border-color: rgba(10, 132, 255, 0.4);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: var(--icon-bg);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--feat-accent-blue);
    font-size: 1.8rem;
    margin-bottom: 20px;
    transition: background 0.3s ease, color 0.3s ease;
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--feat-text-primary);
    line-height: 1.3;
    transition: color 0.3s ease;
}

.feature-description {
    font-size: 0.95rem;
    color: var(--feat-text-secondary);
    margin-bottom: 20px;
    line-height: 1.5;
    flex: 1;
    transition: color 0.3s ease;
}

.feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
}

.tag {
    background: var(--tag-bg);
    border: 1px solid var(--feat-border);
    border-radius: 50px;
    padding: 4px 12px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--feat-text-tertiary);
    transition: all 0.2s ease;
}

.feature-card:hover .tag {
    border-color: var(--feat-accent-blue);
    color: var(--feat-accent-blue);
}

[data-theme="dark"] .feature-card:hover .tag {
    border-color: var(--feat-accent-blue);
    color: var(--feat-accent-blue);
}

/* --- Stats --- */
.features-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-bottom: 56px;
    flex-wrap: wrap;
    padding: 24px;
    background: var(--feat-surface);
    border: 1px solid var(--feat-border);
    border-radius: var(--feat-radius-lg);
    transition: background 0.3s ease, border-color 0.3s ease;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.stat-value {
    font-size: 2.2rem;
    font-weight: 600;
    color: var(--feat-accent-blue);
    line-height: 1.2;
    transition: color 0.3s ease;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--feat-text-tertiary);
    transition: color 0.3s ease;
}

/* --- CTA --- */
.features-cta {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border: 1px solid var(--feat-border);
    border-radius: var(--feat-radius-lg);
    padding: 32px 36px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 28px;
    box-shadow: var(--feat-shadow-sm);
    transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.cta-content {
    display: flex;
    align-items: center;
    gap: 20px;
}

.cta-content i {
    font-size: 2.5rem;
    color: var(--feat-accent-blue);
    opacity: 0.9;
    transition: color 0.3s ease;
}

.cta-content h3 {
    font-size: 1.3rem;
    font-weight: 500;
    margin-bottom: 4px;
    color: var(--feat-text-primary);
    transition: color 0.3s ease;
}

.cta-content p {
    font-size: 0.95rem;
    color: var(--feat-text-secondary);
    margin: 0;
    transition: color 0.3s ease;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--feat-accent-blue);
    color: white;
    padding: 16px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.2s ease;
    white-space: nowrap;
    border: 1px solid transparent;
}

.cta-button:hover {
    background: var(--feat-accent-blue);
    filter: brightness(1.1);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px var(--badge-shadow);
}

.cta-button i {
    transition: transform 0.2s ease;
}

.cta-button:hover i {
    transform: translateX(4px);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .features-premium {
        padding: 60px 0;
    }
    
    .features-container {
        padding: 0 24px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .features-stats {
        gap: 24px;
        padding: 20px;
    }
    
    .features-cta {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .cta-content {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .cta-button {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .features-header {
        margin-bottom: 40px;
    }
    
    .features-title {
        flex-direction: column;
        gap: 12px;
    }
    
    .feature-card {
        padding: 24px;
    }
    
    .features-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .stat-item {
        width: 100%;
    }
}