/* ===================================
   WebZítra Blog — Styles
   Requires: css/style.css (design system)
   =================================== */

/* ---- BLOG HERO ---- */
.blog-hero {
    padding: 140px 0 60px;
    text-align: center;
}

.blog-hero h1 {
    font-size: 2.8rem;
    font-weight: 800;
    line-height: 1.15;
    color: var(--heading);
    margin-bottom: 16px;
    text-wrap: balance;
}

.blog-hero p {
    font-size: 1.15rem;
    color: var(--text-light);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.6;
    text-wrap: pretty;
}

/* ---- NEWSLETTER FORM ---- */
.newsletter-section {
    padding: 48px 0;
}

.newsletter-box {
    max-width: 520px;
    margin: 0 auto;
    text-align: center;
}

.newsletter-box h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--heading);
    margin-bottom: 8px;
}

.newsletter-box p {
    font-size: 0.95rem;
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.5;
    text-wrap: pretty;
}

.newsletter-form {
    display: flex;
    gap: 10px;
    max-width: 460px;
    margin: 0 auto;
}

.newsletter-input {
    flex: 1;
    padding: 14px 18px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    font-size: 0.95rem;
    font-family: 'Inter', sans-serif;
    background: var(--white);
    color: var(--heading);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.newsletter-input::placeholder {
    color: var(--text-light);
}

.newsletter-btn {
    padding: 14px 28px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 0.95rem;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    transition: background var(--transition), transform var(--transition);
    white-space: nowrap;
}

.newsletter-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.newsletter-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.newsletter-success {
    display: none;
    padding: 16px;
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: var(--radius-lg);
    color: #22c55e;
    font-size: 0.95rem;
    font-weight: 500;
    text-align: center;
}

.newsletter-success.visible {
    display: block;
}

.newsletter-error {
    display: none;
    padding: 12px;
    color: #ef4444;
    font-size: 0.88rem;
    text-align: center;
    margin-top: 8px;
}

.newsletter-error.visible {
    display: block;
}

/* ---- BLOG GRID ---- */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    padding-bottom: 80px;
}

/* ---- BLOG CARD ---- */
.blog-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
}

.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(99, 102, 241, 0.12);
    border-color: var(--primary);
}

.blog-card-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary) 0%, #818cf8 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.blog-card:hover .blog-card-image img {
    transform: scale(1.05);
}

/* Placeholder icon when no image */
.blog-card-image .card-icon {
    font-size: 3rem;
    opacity: 0.5;
}

.blog-card-content {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.blog-tag {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    font-size: 0.78rem;
    font-weight: 600;
    border-radius: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.blog-date {
    font-size: 0.85rem;
    color: var(--text-light);
}

.blog-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    line-height: 1.35;
    margin-bottom: 10px;
    color: var(--heading);
}

.blog-excerpt {
    font-size: 0.92rem;
    color: var(--text-light);
    line-height: 1.6;
    flex: 1;
    margin-bottom: 16px;
    text-wrap: pretty;
}

.blog-read-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
    transition: gap var(--transition);
}

.blog-card:hover .blog-read-more {
    gap: 10px;
}

/* ---- BREADCRUMB ---- */
.blog-breadcrumb {
    padding: 100px 0 0;
    font-size: 0.88rem;
    color: var(--text-light);
}

.blog-breadcrumb a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition);
}

.blog-breadcrumb a:hover {
    color: var(--primary-dark);
}

.blog-breadcrumb span {
    margin: 0 8px;
    opacity: 0.5;
}

/* ---- ARTICLE HEADER ---- */
.article-header {
    padding: 32px 0 40px;
    max-width: 720px;
    margin: 0 auto;
}

.article-header h1 {
    font-size: 2.4rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--heading);
    margin-bottom: 20px;
    text-wrap: balance;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.article-meta time {
    font-size: 0.9rem;
    color: var(--text-light);
}

.reading-time {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* ---- ARTICLE CONTENT (Prose) ---- */
.article-content {
    max-width: 720px;
    margin: 0 auto;
    padding-bottom: 48px;
}

.article-content h2 {
    font-size: 1.65rem;
    font-weight: 750;
    line-height: 1.3;
    color: var(--heading);
    margin: 40px 0 16px;
    text-wrap: balance;
}

.article-content h3 {
    font-size: 1.3rem;
    font-weight: 700;
    line-height: 1.35;
    color: var(--heading);
    margin: 32px 0 12px;
    text-wrap: balance;
}

.article-content p {
    font-size: 1.05rem;
    line-height: 1.75;
    color: var(--text);
    margin-bottom: 20px;
    text-wrap: pretty;
}

.article-content ul,
.article-content ol {
    margin: 0 0 24px 24px;
    line-height: 1.75;
    color: var(--text);
    font-size: 1.05rem;
}

.article-content li {
    margin-bottom: 8px;
}

.article-content strong {
    font-weight: 700;
    color: var(--heading);
}

.article-content blockquote {
    margin: 28px 0;
    padding: 20px 24px;
    border-left: 4px solid var(--primary);
    background: rgba(99, 102, 241, 0.05);
    border-radius: 0 var(--radius) var(--radius) 0;
    font-style: italic;
    color: var(--text);
}

.article-content blockquote p {
    margin-bottom: 0;
}

.article-content a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color var(--transition);
}

.article-content a:hover {
    color: var(--primary-dark);
}

/* ---- ARTICLE CTA BOX ---- */
.article-cta {
    max-width: 720px;
    margin: 0 auto 48px;
    padding: 36px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(129, 140, 248, 0.08) 100%);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-xl);
    text-align: center;
}

.article-cta h3 {
    font-size: 1.35rem;
    font-weight: 750;
    color: var(--heading);
    margin-bottom: 12px;
}

.article-cta p {
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: 24px;
    line-height: 1.6;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

.article-cta .btn {
    display: inline-block;
    padding: 14px 32px;
    background: var(--primary);
    color: #fff;
    text-decoration: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1rem;
    transition: background var(--transition), transform var(--transition);
}

.article-cta .btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* ---- SOCIAL SHARE ---- */
.article-share {
    max-width: 720px;
    margin: 0 auto 48px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.article-share span {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-light);
}

.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--white);
    color: var(--text-light);
    text-decoration: none;
    font-size: 1.1rem;
    transition: all var(--transition);
    cursor: pointer;
}

.share-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

/* ---- RELATED ARTICLES ---- */
.article-related {
    max-width: 960px;
    margin: 0 auto;
    padding: 48px 0 80px;
    border-top: 1px solid var(--border);
}

.article-related h2 {
    font-size: 1.5rem;
    font-weight: 750;
    color: var(--heading);
    margin-bottom: 28px;
    text-align: center;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

/* ---- DARK MODE ---- */
[data-theme="dark"] .blog-card {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .blog-card:hover {
    border-color: var(--primary);
    box-shadow: 0 12px 40px rgba(99, 102, 241, 0.15);
}

[data-theme="dark"] .blog-card h3 {
    color: var(--text-dark);
}

[data-theme="dark"] .blog-tag {
    background: rgba(99, 102, 241, 0.15);
}

[data-theme="dark"] .newsletter-input {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.1);
    color: var(--text-dark);
}

[data-theme="dark"] .newsletter-input::placeholder {
    color: var(--text-dark-muted);
}

[data-theme="dark"] .newsletter-input:focus {
    border-color: var(--primary);
}

[data-theme="dark"] .article-content blockquote {
    background: rgba(99, 102, 241, 0.08);
}

[data-theme="dark"] .article-cta {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.12) 0%, rgba(129, 140, 248, 0.08) 100%);
    border-color: rgba(99, 102, 241, 0.25);
}

[data-theme="dark"] .share-btn {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.1);
    color: var(--text-dark-muted);
}

[data-theme="dark"] .share-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

[data-theme="dark"] .article-related {
    border-top-color: rgba(255, 255, 255, 0.08);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
    .blog-hero h1 {
        font-size: 2.2rem;
    }

    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

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

    .article-header h1 {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .blog-hero {
        padding: 120px 0 40px;
    }

    .blog-hero h1 {
        font-size: 1.8rem;
    }

    .blog-hero p {
        font-size: 1rem;
    }

    .blog-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        padding-bottom: 60px;
    }

    .blog-card-image {
        height: 180px;
    }

    .newsletter-form {
        flex-direction: column;
    }

    .newsletter-btn {
        width: 100%;
        text-align: center;
    }

    .article-header {
        padding: 24px 0 32px;
    }

    .article-header h1 {
        font-size: 1.7rem;
    }

    .article-content h2 {
        font-size: 1.4rem;
    }

    .article-content h3 {
        font-size: 1.15rem;
    }

    .article-content p,
    .article-content ul,
    .article-content ol {
        font-size: 1rem;
    }

    .article-cta {
        padding: 28px 20px;
    }

    .related-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .blog-breadcrumb {
        padding: 80px 0 0;
    }
}

@media (max-width: 480px) {
    .blog-hero h1 {
        font-size: 1.5rem;
    }

    .article-header h1 {
        font-size: 1.45rem;
    }

    .article-meta {
        gap: 10px;
    }

    .blog-card-content {
        padding: 18px;
    }
}