/* Features Section CSS Template */
/* Sử dụng CSS variables từ Section Manager */

.section-features {
    /* Layout */
    padding-top: var(--features-padding-top, 4rem);
    padding-bottom: var(--features-padding-bottom, 4rem);
    margin-top: var(--features-margin-top, 0);
    margin-bottom: var(--features-margin-bottom, 0);
    
    /* Background */
    background-color: var(--bg-primary, #ffffff);
    position: relative;
}

/* Features Container */
.features-container {
    max-width: var(--features-content-width, 1200px);
    margin: 0 auto;
    padding: 0 var(--spacing-md, 1.5rem);
}

/* Features Header */
.features-header {
    text-align: center;
    margin-bottom: var(--spacing-xl, 3rem);
}

.features-main-title {
    font-size: var(--features-title-font-size, 2.5rem);
    font-weight: 700;
    color: var(--features-title-color, #1f2937);
    margin: 0 0 var(--spacing-md, 1.5rem);
    line-height: 1.2;
}

.features-subtitle {
    font-size: var(--features-description-font-size, 1.125rem);
    color: var(--features-description-color, #6b7280);
    margin: 0;
    line-height: 1.6;
    max-width: 800px;
    margin: 0 auto;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(var(--features-grid-columns, 3), 1fr);
    gap: var(--features-card-margin, 2rem);
}

/* Feature Card */
.feature-card {
    background: var(--features-card-background, #ffffff);
    padding: var(--features-card-padding, 2rem);
    border-radius: var(--spacing-md, 1.5rem);
    box-shadow: var(--features-card-shadow, 0 1px 3px 0 rgba(0, 0, 0, 0.1));
    border: var(--features-card-border, 1px solid #e5e7eb);
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* Feature Icon */
.feature-icon {
    width: var(--features-icon-size, 3rem);
    height: var(--features-icon-size, 3rem);
    margin: 0 auto var(--spacing-md, 1.5rem);
    color: var(--features-icon-color, #6366f1);
    opacity: 0.9;
    transition: all 0.3s ease;
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    opacity: 1;
}

/* Feature Content */
.feature-content {
    flex: 1;
}

/* Feature Title */
.feature-title {
    font-size: var(--features-title-font-size, 1.25rem);
    font-weight: 700;
    color: var(--features-title-color, #1f2937);
    margin: 0 0 var(--spacing-sm, 1rem);
    line-height: 1.3;
}

/* Feature Description */
.feature-description {
    font-size: var(--features-description-font-size, 1rem);
    color: var(--features-description-color, #6b7280);
    margin: 0;
    line-height: 1.6;
}

/* Feature Link */
.feature-link {
    display: inline-flex;
    align-items: center;
    color: var(--features-icon-color, #6366f1);
    text-decoration: none;
    font-weight: 600;
    margin-top: var(--spacing-md, 1.5rem);
    transition: all 0.3s ease;
}

.feature-link:hover {
    color: var(--features-icon-color, #6366f1);
    transform: translateX(5px);
}

.feature-link::after {
    content: '→';
    margin-left: var(--spacing-xs, 0.5rem);
    transition: transform 0.3s ease;
}

.feature-link:hover::after {
    transform: translateX(3px);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(min(var(--features-grid-columns, 3), 2), 1fr);
        gap: calc(var(--features-card-margin, 2rem) * 0.8);
    }
    
    .feature-card {
        padding: calc(var(--features-card-padding, 2rem) * 0.9);
    }
    
    .features-main-title {
        font-size: calc(var(--features-title-font-size, 2.5rem) * 0.9);
    }
}

@media (max-width: 768px) {
    .section-features {
        padding-top: calc(var(--features-padding-top, 4rem) * 0.75);
        padding-bottom: calc(var(--features-padding-bottom, 4rem) * 0.75);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: calc(var(--features-card-margin, 2rem) * 0.6);
    }
    
    .features-header {
        margin-bottom: var(--spacing-lg, 2rem);
    }
    
    .features-main-title {
        font-size: calc(var(--features-title-font-size, 2.5rem) * 0.7);
    }
    
    .features-subtitle {
        font-size: calc(var(--features-description-font-size, 1.125rem) * 0.9);
    }
    
    .feature-title {
        font-size: calc(var(--features-title-font-size, 1.25rem) * 0.9);
    }
    
    .feature-description {
        font-size: calc(var(--features-description-font-size, 1rem) * 0.9);
    }
    
    .feature-icon {
        width: calc(var(--features-icon-size, 3rem) * 0.8);
        height: calc(var(--features-icon-size, 3rem) * 0.8);
    }
}

@media (max-width: 480px) {
    .section-features {
        padding-top: calc(var(--features-padding-top, 4rem) * 0.5);
        padding-bottom: calc(var(--features-padding-bottom, 4rem) * 0.5);
    }
    
    .feature-card {
        padding: calc(var(--features-card-padding, 2rem) * 0.7);
    }
    
    .features-main-title {
        font-size: calc(var(--features-title-font-size, 2.5rem) * 0.6);
    }
    
    .features-subtitle {
        font-size: calc(var(--features-description-font-size, 1.125rem) * 0.8);
    }
    
    .feature-title {
        font-size: calc(var(--features-title-font-size, 1.25rem) * 0.8);
    }
    
    .feature-description {
        font-size: calc(var(--features-description-font-size, 1rem) * 0.8);
    }
}

/* Animation Support */
.feature-card.animate-fadeIn {
    animation: fadeIn 0.8s ease-out;
}

.feature-card.animate-slideUp {
    animation: slideUp 0.8s ease-out;
}

.feature-card.animate-zoomIn {
    animation: zoomIn 0.8s ease-out;
}

/* Staggered Animation */
.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; }
.feature-card:nth-child(5) { animation-delay: 0.5s; }
.feature-card:nth-child(6) { animation-delay: 0.6s; }

/* Animation Keyframes */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes zoomIn {
    from { 
        opacity: 0;
        transform: scale(0.9);
    }
    to { 
        opacity: 1;
        transform: scale(1);
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .feature-card {
        border-width: 2px;
    }
    
    .feature-title {
        font-weight: 900;
    }
    
    .feature-link {
        text-decoration: underline;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .feature-card {
        transition: none;
    }
    
    .feature-card:hover {
        transform: none;
    }
    
    .feature-icon {
        transition: none;
    }
    
    .feature-card:hover .feature-icon {
        transform: none;
    }
    
    .feature-link {
        transition: none;
    }
    
    .feature-link:hover {
        transform: none;
    }
    
    .feature-link::after {
        transition: none;
    }
    
    .feature-link:hover::after {
        transform: none;
    }
    
    .feature-card.animate-fadeIn,
    .feature-card.animate-slideUp,
    .feature-card.animate-zoomIn {
        animation: none;
    }
}

/* Print Styles */
@media print {
    .section-features {
        background: white !important;
        padding: var(--spacing-md, 1.5rem) 0;
    }
    
    .feature-card {
        box-shadow: none;
        border: 1px solid #ccc;
        break-inside: avoid;
        page-break-inside: avoid;
    }
    
    .feature-title {
        color: black !important;
    }
    
    .feature-description {
        color: #666 !important;
    }
    
    .feature-link {
        color: #333 !important;
        text-decoration: underline;
    }
}