/**
 * GPS News Aggregator Public Styles
 *
 * @since 1.0.0
 */

/* CSS Custom Properties */
:root {
    --gps-primary-color: #2271b1;
    --gps-text-color: #1d2327;
    --gps-text-muted: #646970;
    --gps-border-color: #dcdcde;
    --gps-background: #f6f7f7;
    --gps-spacing-sm: 8px;
    --gps-spacing-md: 16px;
    --gps-spacing-lg: 24px;
}

/* Base Container */
.gps-news {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    line-height: 1.6;
}

/* List Layout */
.gps-news-list .gps-news-article {
    padding: var(--gps-spacing-md) 0;
    border-bottom: 1px solid var(--gps-border-color);
}

.gps-news-list .gps-news-article:last-child {
    border-bottom: none;
}

/* Grid Layout */
.gps-news-grid {
    display: grid;
    gap: var(--gps-spacing-lg);
}

.gps-news-grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.gps-news-grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.gps-news-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.gps-news-grid .gps-news-article {
    display: flex;
    flex-direction: column;
    padding: var(--gps-spacing-md);
    background: #fff;
    border: 1px solid var(--gps-border-color);
    border-radius: 4px;
}

/* Compact Layout */
.gps-news-compact .gps-news-article {
    padding: var(--gps-spacing-sm) 0;
    border-bottom: 1px solid var(--gps-border-color);
}

.gps-news-compact .gps-news-article:last-child {
    border-bottom: none;
}

.gps-news-compact .gps-news-article__title {
    font-size: 14px;
    margin: 0;
}

.gps-news-compact .gps-news-article__meta {
    font-size: 11px;
}

.gps-news-compact .gps-news-article__excerpt,
.gps-news-compact .gps-news-article__thumbnail {
    display: none;
}

/* Featured Layout */
.gps-news-featured .gps-news-article {
    display: flex;
    gap: var(--gps-spacing-lg);
    padding: var(--gps-spacing-lg);
    background: var(--gps-background);
    border-radius: 8px;
}

.gps-news-featured .gps-news-article__thumbnail {
    flex: 0 0 40%;
}

.gps-news-featured .gps-news-article__thumbnail img {
    width: 100%;
    height: auto;
    border-radius: 4px;
}

.gps-news-featured .gps-news-article__title {
    font-size: 24px;
    line-height: 1.3;
}

/* Article Elements */
.gps-news-article__thumbnail {
    margin-bottom: var(--gps-spacing-md);
}

.gps-news-article__thumbnail img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
    object-fit: cover;
}

.gps-news-article__title,
.gps-news .gps-news-article .gps-news-article__title,
.gps-news h3.gps-news-article__title {
    margin: 0 0 var(--gps-spacing-sm) 0;
    font-size: 18px !important;
    font-weight: 600;
    line-height: 1.4;
}

.gps-news-article__title a,
.gps-news .gps-news-article__title a,
.gps-news h3.gps-news-article__title a {
    color: var(--gps-text-color);
    text-decoration: none;
    font-size: inherit !important;
}

.gps-news-article__title a:hover {
    color: var(--gps-primary-color);
}

.gps-news-article__meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--gps-spacing-sm);
    margin-bottom: var(--gps-spacing-sm);
    font-size: 13px;
    color: var(--gps-text-muted);
}

.gps-news-article__source {
    font-weight: 500;
}

.gps-news-article__category {
    display: inline-block;
    padding: 2px 8px;
    font-size: 11px;
    font-weight: 500;
    color: #fff;
    border-radius: 3px;
    text-transform: uppercase;
}

.gps-news-article__excerpt {
    margin: 0;
    color: var(--gps-text-muted);
    font-size: 14px;
}

/* Category Section */
.gps-news-category-section {
    margin-bottom: var(--gps-spacing-lg);
}

.gps-news-category-title {
    margin: 0 0 var(--gps-spacing-md) 0;
}

.gps-news-category-description {
    margin: 0 0 var(--gps-spacing-md) 0;
    color: var(--gps-text-muted);
}

/* Expand Button */
.gps-news-expand {
    margin-top: var(--gps-spacing-md);
    text-align: center;
}

.gps-expand-button {
    padding: 10px 24px;
    font-size: 14px;
    cursor: pointer;
    background: var(--gps-primary-color);
    color: #fff;
    border: none;
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

.gps-expand-button:hover {
    background: #135e96;
}

.gps-expand-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.gps-expand-count {
    opacity: 0.8;
}

/* Archive */
.gps-news-archive {
    max-width: 900px;
}

.gps-news-archive-filters {
    margin-bottom: var(--gps-spacing-lg);
    padding: var(--gps-spacing-md);
    background: var(--gps-background);
    border-radius: 4px;
}

.gps-archive-filter-form {
    display: flex;
    flex-wrap: wrap;
    gap: var(--gps-spacing-sm);
    align-items: center;
}

.gps-filter-group {
    flex: 1;
    min-width: 150px;
}

.gps-filter-group select,
.gps-filter-group input {
    width: 100%;
    padding: 8px 12px;
    font-size: 14px;
    border: 1px solid var(--gps-border-color);
    border-radius: 4px;
    background: #fff;
}

.gps-search-input {
    min-width: 200px;
}

.gps-filter-submit {
    padding: 8px 16px;
    background: var(--gps-primary-color);
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
}

.gps-filter-submit:hover {
    background: #135e96;
}

/* Pagination */
.gps-news-pagination {
    margin-top: var(--gps-spacing-lg);
    text-align: center;
}

.gps-load-more {
    padding: 12px 32px;
    font-size: 14px;
    cursor: pointer;
    background: #fff;
    color: var(--gps-text-color);
    border: 1px solid var(--gps-border-color);
    border-radius: 4px;
    transition: all 0.2s ease;
}

.gps-load-more:hover {
    background: var(--gps-background);
    border-color: var(--gps-text-muted);
}

.gps-load-more:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* No Results */
.gps-news-no-results {
    padding: var(--gps-spacing-lg);
    text-align: center;
    color: var(--gps-text-muted);
    background: var(--gps-background);
    border-radius: 4px;
}

/* Loading State */
.gps-loading-indicator {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--gps-border-color);
    border-top-color: var(--gps-primary-color);
    border-radius: 50%;
    animation: gps-spin 0.8s linear infinite;
    margin-right: 8px;
    vertical-align: middle;
}

@keyframes gps-spin {
    to {
        transform: rotate(360deg);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .gps-news-grid-2,
    .gps-news-grid-3,
    .gps-news-grid-4 {
        grid-template-columns: 1fr;
    }

    .gps-news-featured .gps-news-article {
        flex-direction: column;
    }

    .gps-news-featured .gps-news-article__thumbnail {
        flex: none;
    }

    .gps-news-featured .gps-news-article__title {
        font-size: 20px;
    }

    .gps-archive-filter-form {
        flex-direction: column;
    }

    .gps-filter-group {
        width: 100%;
    }
}

/* Accessibility */
.gps-news-article__title a:focus,
.gps-expand-button:focus,
.gps-load-more:focus,
.gps-filter-submit:focus {
    outline: 2px solid var(--gps-primary-color);
    outline-offset: 2px;
}

/* Screen reader text */
.screen-reader-text {
    border: 0;
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(50%);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
    word-wrap: normal !important;
}