/* Brand Section */
.brand {
    padding: var(--spacing-5xl) 0;
    background-color: var(--color-bg-secondary);
}

.brand .container {
    max-width: 1000px;
}

/* Brand Introduction */
.brand__intro {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.brand__intro p {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin: var(--spacing-lg) 0 0;
}

/* Brand Assets Grid */
.brand__assets {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-4xl);
}

/* Asset Card */
.asset-card {
    background-color: var(--color-bg-primary);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    transition: all var(--duration-base) var(--ease-out);
    position: relative;
    overflow: hidden;
}

.asset-card:hover {
    border-color: var(--color-border-dark);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* Asset Preview */
.asset-card__preview {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--spacing-lg);
    background-color: var(--color-bg-secondary);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--radius-base);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

/* OK Hand Icon Placeholder */
.asset-card__preview::before {
    content: '👌';
    font-size: 48px;
    filter: grayscale(100%);
    opacity: 0.8;
}

/* For actual SVG/PNG assets */
.asset-card__preview img {
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
}

/* Asset Info */
.asset-card__title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.asset-card__description {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-lg);
}

/* Asset Downloads */
.asset-card__downloads {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: transparent;
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    text-decoration: none;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    transition: all var(--duration-base) var(--ease-out);
    cursor: pointer;
}

.download-btn:hover {
    background-color: var(--color-text-primary);
    color: var(--color-bg-primary);
    border-color: var(--color-text-primary);
    transform: translateY(-1px);
}

.download-btn:focus {
    outline: 2px solid var(--color-text-primary);
    outline-offset: 2px;
}

/* Download icon */
.download-btn::before {
    content: '↓';
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
}

/* Brand Guidelines */
.brand__guidelines {
    margin-top: var(--spacing-4xl);
}

.guidelines-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

/* Guideline Item */
.guideline-item {
    background-color: var(--color-bg-primary);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--radius-base);
    padding: var(--spacing-lg);
    transition: all var(--duration-base) var(--ease-out);
}

.guideline-item:hover {
    border-color: var(--color-border-dark);
    box-shadow: var(--shadow-sm);
}

.guideline-item__title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* Guideline icons */
.guideline-item__title::before {
    content: '';
    width: 16px;
    height: 16px;
    background-color: var(--color-text-primary);
    border-radius: 50%;
    flex-shrink: 0;
}

.guideline-item--do .guideline-item__title::before {
    background-color: var(--color-success, #22c55e);
}

.guideline-item--dont .guideline-item__title::before {
    background-color: var(--color-error, #ef4444);
}

.guideline-item__content {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

.guideline-item__content ul {
    margin: var(--spacing-sm) 0 0;
    padding-left: var(--spacing-md);
}

.guideline-item__content li {
    margin-bottom: var(--spacing-xs);
}

/* Color Palette */
.color-palette {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.color-item {
    text-align: center;
}

.color-item__swatch {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-base);
    border: var(--border-width) solid var(--color-border);
    margin: 0 auto var(--spacing-sm);
    position: relative;
    cursor: pointer;
    transition: transform var(--duration-base) var(--ease-out);
}

.color-item__swatch:hover {
    transform: scale(1.05);
}

.color-item__swatch--black {
    background-color: #000000;
}

.color-item__swatch--white {
    background-color: #ffffff;
}

.color-item__swatch--gray {
    background-color: #666666;
}

.color-item__name {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.color-item__hex {
    font-family: var(--font-family-mono);
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: color var(--duration-base) var(--ease-out);
}

.color-item__hex:hover {
    color: var(--color-text-primary);
}

/* Responsive Design */
@media (max-width: 768px) {
    .brand {
        padding: var(--spacing-4xl) 0;
    }
    
    .brand__assets {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .asset-card {
        padding: var(--spacing-xl);
    }
    
    .asset-card__preview {
        width: 100px;
        height: 100px;
    }
    
    .asset-card__preview::before {
        font-size: 36px;
    }
    
    .guidelines-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .color-palette {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }
    
    .color-item__swatch {
        width: 60px;
        height: 60px;
    }
}

@media (max-width: 480px) {
    .asset-card {
        padding: var(--spacing-lg);
    }
    
    .asset-card__downloads {
        flex-direction: column;
        align-items: center;
    }
    
    .download-btn {
        width: 100%;
        justify-content: center;
    }
    
    .color-palette {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    .asset-card,
    .guideline-item {
        border-width: var(--border-width-thick);
    }
    
    .download-btn {
        border-width: var(--border-width-thick);
    }
    
    .color-item__swatch {
        border-width: var(--border-width-thick);
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .asset-card,
    .guideline-item,
    .download-btn,
    .color-item__swatch {
        transition: none;
    }
    
    .asset-card:hover,
    .download-btn:hover,
    .color-item__swatch:hover {
        transform: none;
    }
}

/* Print styles */
@media print {
    .brand {
        padding: var(--spacing-lg) 0;
    }
    
    .asset-card,
    .guideline-item {
        break-inside: avoid;
        box-shadow: none;
        transform: none;
    }
    
    .download-btn {
        display: none;
    }
    
    .color-item__swatch {
        border: 2px solid #000;
    }
}

/* Animation for brand items appearing */
.asset-card,
.guideline-item {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease-out forwards;
}

.asset-card:nth-child(1) { animation-delay: 0.1s; }
.asset-card:nth-child(2) { animation-delay: 0.2s; }
.asset-card:nth-child(3) { animation-delay: 0.3s; }

.guideline-item:nth-child(1) { animation-delay: 0.1s; }
.guideline-item:nth-child(2) { animation-delay: 0.2s; }
.guideline-item:nth-child(3) { animation-delay: 0.3s; }
.guideline-item:nth-child(4) { animation-delay: 0.4s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    .asset-card,
    .guideline-item {
        animation: none;
        opacity: 1;
        transform: none;
    }
}