/* AI News Plugin - Frontend Styles */

:root {
    --ai-news-card-bg: #ffffff;
    --ai-news-card-border: #e2e8f0;
    --ai-news-card-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --ai-news-card-shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.15);
    --ai-news-text-primary: #1a202c;
    --ai-news-text-secondary: #718096;
    --ai-news-link-color: #2b6cb0;
    --ai-news-link-hover: #1a4a7a;
    --ai-news-meta-bg: #f7fafc;
    --ai-news-divider: #e2e8f0;
}

/* Dark theme - auto (browser preference) */
@media (prefers-color-scheme: dark) {
    .ai-news-container:not(.ai-news-theme-light):not(.ai-news-theme-dark) {
        --ai-news-card-bg: #2d3748;
        --ai-news-card-border: #4a5568;
        --ai-news-card-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
        --ai-news-card-shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.4);
        --ai-news-text-primary: #e2e8f0;
        --ai-news-text-secondary: #a0aec0;
        --ai-news-link-color: #63b3ed;
        --ai-news-link-hover: #90cdf4;
        --ai-news-meta-bg: #1a202c;
        --ai-news-divider: #4a5568;
    }
}

/* Light theme - forced */
.ai-news-theme-light {
    --ai-news-card-bg: #ffffff;
    --ai-news-card-border: #e2e8f0;
    --ai-news-card-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --ai-news-card-shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.15);
    --ai-news-text-primary: #1a202c;
    --ai-news-text-secondary: #718096;
    --ai-news-link-color: #2b6cb0;
    --ai-news-link-hover: #1a4a7a;
    --ai-news-meta-bg: #f7fafc;
    --ai-news-divider: #e2e8f0;
}

/* Dark theme - forced */
.ai-news-theme-dark {
    --ai-news-card-bg: #2d3748;
    --ai-news-card-border: #4a5568;
    --ai-news-card-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    --ai-news-card-shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.4);
    --ai-news-text-primary: #e2e8f0;
    --ai-news-text-secondary: #a0aec0;
    --ai-news-link-color: #63b3ed;
    --ai-news-link-hover: #90cdf4;
    --ai-news-meta-bg: #1a202c;
    --ai-news-divider: #4a5568;
}

/* Container */
.ai-news-container {
    margin: 1.5em 0;
    font-family: inherit;
}

/* Empty state */
.ai-news-empty {
    text-align: center;
    padding: 2em;
    color: var(--ai-news-text-secondary);
}

/* ==================== Card Layout ==================== */

.ai-news-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5em;
}

.ai-news-card {
    background: var(--ai-news-card-bg);
    border: 1px solid var(--ai-news-card-border);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--ai-news-card-shadow);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
    display: flex;
    flex-direction: column;
}

.ai-news-card:hover {
    box-shadow: var(--ai-news-card-shadow-hover);
    transform: translateY(-2px);
}

.ai-news-card__image {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--ai-news-meta-bg);
}

.ai-news-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.ai-news-card__content {
    padding: 1em 1.25em;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.ai-news-card__title {
    font-size: 1em;
    line-height: 1.4;
    margin: 0 0 0.5em;
    font-weight: 600;
}

.ai-news-card__title a {
    color: var(--ai-news-text-primary);
    text-decoration: none;
}

.ai-news-card__title a:hover {
    color: var(--ai-news-link-color);
}

.ai-news-card__summary {
    font-size: 0.875em;
    line-height: 1.6;
    color: var(--ai-news-text-secondary);
    margin: 0 0 1em;
    flex: 1;
}

.ai-news-card__meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75em;
    color: var(--ai-news-text-secondary);
    padding-top: 0.75em;
    border-top: 1px solid var(--ai-news-divider);
    margin-top: auto;
}

.ai-news-card__source {
    font-weight: 500;
}

/* ==================== List Layout ==================== */

.ai-news-list__items {
    list-style: none;
    margin: 0;
    padding: 0;
}

.ai-news-list__item {
    padding: 1em 0;
    border-bottom: 1px solid var(--ai-news-divider);
}

.ai-news-list__item:last-child {
    border-bottom: none;
}

.ai-news-list__header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1em;
    flex-wrap: wrap;
}

.ai-news-list__title {
    font-size: 1em;
    font-weight: 600;
    color: var(--ai-news-text-primary);
    text-decoration: none;
    line-height: 1.4;
}

.ai-news-list__title:hover {
    color: var(--ai-news-link-color);
}

.ai-news-list__meta {
    font-size: 0.75em;
    color: var(--ai-news-text-secondary);
    white-space: nowrap;
    display: flex;
    gap: 0.5em;
    align-items: center;
}

.ai-news-list__source::after {
    content: '|';
    margin-left: 0.5em;
}

.ai-news-list__summary {
    font-size: 0.875em;
    line-height: 1.6;
    color: var(--ai-news-text-secondary);
    margin: 0.5em 0 0;
}

/* ==================== Responsive ==================== */

@media (max-width: 768px) {
    .ai-news-cards {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 1em;
    }
}

@media (max-width: 480px) {
    .ai-news-cards {
        grid-template-columns: 1fr;
    }

    .ai-news-list__header {
        flex-direction: column;
        gap: 0.25em;
    }
}