/* Features Page Specific Styles */

.features-hero {
    padding: 120px 0 80px;
    text-align: center;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, rgba(255, 0, 128, 0.1) 100%);
    border-bottom: 1px solid var(--border-color);
}

.features-hero .hero-title {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.features-hero .subtitle {
    font-size: 1.3rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.features-hero .hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Category Navigation */
.category-nav {
    padding: 2rem;
    background: rgba(128, 128, 128, 0.1);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 70px;
    z-index: 100;
}

.category-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.category-btn {
    padding: 0.8rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 25px;
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.category-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.category-btn.active {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-color: transparent;
}

/* Features Content */
.features-content {
    padding: 4rem 0;
}

.category-section {
    margin-bottom: 4rem;
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.3s ease, transform 0.3s ease;
    position: relative;
}

.category-section.hidden {
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
    position: absolute;
    width: 100%;
    height: 0;
    overflow: hidden;
    margin-bottom: 0;
}

.category-title {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.category-title::after {
    content: '';
    flex: 1;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), transparent);
}

/* Modules Grid */
.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.module-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
    backdrop-filter: blur(20px);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.module-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.module-card:hover::before {
    transform: scaleX(1);
}

.module-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.module-card.featured {
    border-color: var(--accent-color);
    background: linear-gradient(135deg, var(--bg-card), rgba(255, 0, 128, 0.05));
}

.module-card.featured::before {
    background: linear-gradient(90deg, var(--accent-color), var(--primary-color));
}

.module-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.module-header h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
}

.module-tag {
    padding: 0.3rem 0.8rem;
    background: rgba(0, 212, 255, 0.2);
    color: var(--primary-color);
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(0, 212, 255, 0.3);
}

.module-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.module-modes {
    margin-bottom: 1.5rem;
}

.mode-item {
    padding: 0.8rem 1rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 10px;
    margin-bottom: 0.5rem;
    border-left: 3px solid var(--primary-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.mode-item:last-child {
    margin-bottom: 0;
}

.module-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.feature-tag {
    padding: 0.3rem 0.8rem;
    background: rgba(0, 255, 136, 0.1);
    color: var(--secondary-color);
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(0, 255, 136, 0.2);
}

.feature-detected {
    padding: 0.3rem 0.8rem;
    background: rgba(255, 140, 0, 0.2);
    color: #ff8c00;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid rgba(255, 140, 0, 0.4);
    letter-spacing: 0.5px;
}

/* Safety Section */
.safety-section {
    margin-top: 4rem;
    padding: 3rem 2rem;
    background: rgba(128, 128, 128, 0.1);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.safety-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.safety-card {
    background: rgba(128, 128, 128, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 2rem;
    backdrop-filter: blur(20px);
}

.safety-card h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.2rem;
    font-weight: 600;
}

.safety-card ul {
    list-style: none;
    padding: 0;
}

.safety-card li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.5rem;
}

.safety-card li::before {
    content: '🛡️';
    position: absolute;
    left: 0;
    font-size: 0.8rem;
}

/* Search functionality removed */

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.module-card {
    animation: fadeInUp 0.6s ease-out;
}

.module-card:nth-child(1) { animation-delay: 0.1s; }
.module-card:nth-child(2) { animation-delay: 0.2s; }
.module-card:nth-child(3) { animation-delay: 0.3s; }
.module-card:nth-child(4) { animation-delay: 0.4s; }
.module-card:nth-child(5) { animation-delay: 0.5s; }
.module-card:nth-child(6) { animation-delay: 0.6s; }

/* Loading Animation */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 200px;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .features-hero .hero-title {
        font-size: 2rem;
    }
    
    .features-hero .subtitle {
        font-size: 1.1rem;
    }
    
    .category-buttons {
        gap: 0.5rem;
    }
    
    .category-btn {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }
    
    .modules-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .module-card {
        padding: 1.5rem;
    }
    
    .category-title {
        font-size: 1.8rem;
    }
    
    .safety-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .features-hero {
        padding: 100px 0 60px;
    }
    
    .features-hero .hero-title {
        font-size: 1.8rem;
    }
    
    .category-nav {
        padding: 1.5rem 0;
    }
    
    .category-buttons {
        justify-content: flex-start;
        overflow-x: auto;
        padding: 0 1rem;
    }
    
    .category-btn {
        white-space: nowrap;
        flex-shrink: 0;
    }
    
    .module-card {
        padding: 1.2rem;
    }
    
    .module-header h3 {
        font-size: 1.2rem;
    }
    
    .category-title {
        font-size: 1.5rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .category-title::after {
        width: 100%;
    }
}