/* News Page Styles — Astera Energy & Power (Green & Gold) */

/* News Hero */
.news-hero {
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.news-hero .cta-bg {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--secondary-green) 100%);
}

.news-hero .section-badge {
    background: rgba(212, 175, 55, 0.2);
    color: var(--gold-light);
    border: 1px solid rgba(212, 175, 55, 0.3);
}

.news-hero h1 {
    color: white;
    font-size: clamp(2.5rem, 5vw, 3.5rem);
}

.news-hero p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Category Filter */
.news-categories {
    background: var(--surface);
    padding: 1.5rem 0;
    position: sticky;
    top: 70px;
    z-index: 100;
    border-bottom: 1px solid var(--border);
}

.category-filter {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--border);
    border-radius: 100px;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
    font-family: var(--font-sans);
}

.filter-btn:hover {
    border-color: var(--primary-green);
    color: var(--primary-green);
}

.filter-btn.active {
    background: var(--primary-green);
    border-color: var(--primary-green);
    color: white;
}

/* News Section */
.news-section {
    padding: 60px 0;
    background: var(--surface-variant);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    align-items: start;
}

@media (max-width: 900px) {
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 560px) {
    .news-grid {
        grid-template-columns: 1fr;
    }
}

/* News Card */
.news-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.news-card.featured {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--secondary-green) 100%);
    color: white;
    padding: 3rem;
}

.news-card:not(.featured):hover {
    transform: translateY(-0.25rem);
    box-shadow: var(--shadow-lg);
}

.news-content {
    width: 100%;
}

.featured .news-content h2 {
    color: white;
    font-size: 1.75rem;
}

.featured .news-content p {
    color: rgba(255, 255, 255, 0.85);
}

.featured .article-link {
    color: var(--gold-light);
}

/* News Tags */
.news-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 4px;
    margin-bottom: 0.75rem;
}

.press-tag {
    background: rgba(27, 77, 62, 0.12);
    color: var(--primary-green);
}

.company-tag {
    background: rgba(212, 175, 55, 0.15);
    color: var(--accent-gold);
}

.industry-tag {
    background: rgba(45, 106, 79, 0.12);
    color: var(--secondary-green);
}

.featured .news-tag {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.news-date {
    display: block;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.news-card h2 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.news-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.article-link {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    color: var(--accent);
    font-weight: 600;
    font-size: 0.875rem;
    transition: var(--transition-fast);
}

.article-link:hover {
    gap: 0.5rem;
}

/* Pagination */
.news-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.pagination-btn {
    padding: 0.5rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
    font-family: var(--font-sans);
}

.pagination-btn:not(.disabled):hover {
    border-color: var(--primary-green);
    color: var(--primary-green);
}

.pagination-btn.disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.page-info {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Newsletter */
.newsletter-signup {
    padding: 80px 0;
    background: var(--surface);
}

.newsletter-content {
    text-align: center;
    max-width: 560px;
    margin: 0 auto;
}

.newsletter-content h2 {
    margin-bottom: 0.75rem;
}

.newsletter-content p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.newsletter-form {
    display: flex;
    gap: 0.75rem;
    max-width: 440px;
    margin: 0 auto;
}

.newsletter-form input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    background: var(--surface-variant);
    color: var(--text-primary);
    font-family: var(--font-sans);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--accent);
}

@media (max-width: 480px) {
    .newsletter-form {
        flex-direction: column;
    }
}

/* Empty state */
.news-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
    font-size: 1rem;
}

/* Section badge reuse */
.section-badge {
    display: inline-block;
    padding: 0.35rem 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-radius: 100px;
    margin-bottom: 1rem;
}

/* Empty state */
.news-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
    font-size: 1rem;
}