/* ===================================
   Blog Page Specific Styles
   =================================== */

/* Visually Hidden (for screen readers) */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Categories */
.blog-categories {
    background: var(--color-white);
    padding: var(--space-lg) 0;
    border-bottom: 1px solid var(--color-border-light);
}

.category-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    justify-content: center;
}

.category-tab {
    padding: 0.625rem 1.25rem;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-light);
    cursor: pointer;
    transition: var(--transition-base);
}

.category-tab:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.category-tab:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.category-tab.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

/* Blog Posts Section */
.blog-posts {
    background: var(--color-cream);
    padding: var(--space-2xl) 0;
}

.blog-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

/* Blog Post Card */
.blog-post {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: var(--transition-base);
}

.blog-post:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* Featured Post */
.blog-post-featured {
    grid-column: 1 / -1;
}

.blog-post-featured .post-content {
    padding: var(--space-xl);
}

.blog-post-featured h2 {
    font-size: 2rem;
    margin-bottom: var(--space-md);
}

.blog-post-featured .post-excerpt {
    font-size: 1.125rem;
    margin-bottom: var(--space-md);
}

.blog-post-featured p {
    margin-bottom: var(--space-sm);
}

.blog-post-featured h3 {
    font-size: 1.25rem;
    margin: var(--space-lg) 0 var(--space-sm);
}

/* Post Image */
.post-image {
    position: relative;
    overflow: hidden;
}

.blog-post-featured .post-image {
    height: 400px;
}

.blog-post:not(.blog-post-featured) .post-image {
    height: 220px;
}

.post-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

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

.post-category {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    padding: 0.375rem 1rem;
    background: var(--color-white);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    border-radius: var(--radius-full);
}

/* Post Content */
.post-content {
    padding: var(--space-lg);
}

.post-meta {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-sm);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.post-content h2 {
    font-size: 1.375rem;
    margin-bottom: var(--space-sm);
    line-height: 1.3;
}

.post-excerpt {
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
}

.read-more-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-accent);
}

.read-more-link:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.read-more-link svg {
    width: 18px;
    height: 18px;
    transition: var(--transition-base);
}

.read-more-link:hover svg {
    transform: translateX(4px);
}

/* Expand/Collapse for blog posts */
.post-full {
    display: none;
    margin-top: var(--space-md);
    animation: postFadeIn 0.4s ease-out;
}

.post-full > h3 {
    font-size: 1.125rem;
    margin: var(--space-lg) 0 var(--space-sm);
    color: var(--color-primary);
}

.post-full > h3:first-child {
    margin-top: var(--space-sm);
}

.post-full > p {
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
    line-height: 1.8;
    max-width: none;
}

@keyframes postFadeIn {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.blog-post.expanded .post-full {
    display: block;
}

.read-more-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: var(--space-md);
    padding: 0.625rem 1.125rem;
    background: var(--color-sand);
    color: var(--color-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
    align-self: flex-start;
}

.read-more-btn:hover,
.read-more-btn:focus-visible {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    outline: none;
}

.read-more-btn svg {
    width: 16px;
    height: 16px;
    transition: var(--transition-base);
}

.blog-post.expanded .read-more-btn svg {
    transform: rotate(180deg);
}

/* Post Footer */
.post-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-md);
    margin-top: var(--space-lg);
    border-top: 1px solid var(--color-border-light);
}

.post-author {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.post-share {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.post-share span {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.post-share a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-sand);
    border-radius: var(--radius-full);
    transition: var(--transition-base);
}

.post-share a:hover {
    background: var(--color-primary);
}

.post-share a:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.post-share svg {
    width: 16px;
    height: 16px;
    fill: var(--color-text);
    transition: var(--transition-base);
}

.post-share a:hover svg {
    fill: var(--color-white);
}

/* Newsletter Box */
.newsletter-box {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-lg);
    justify-content: space-between;
    align-items: center;
    padding: var(--space-lg);
    background: var(--color-primary);
    border-radius: var(--radius-xl);
    margin-top: var(--space-2xl);
    color: var(--color-white);
}

@media (min-width: 768px) {
    .newsletter-box {
        padding: var(--space-xl);
    }
}

.newsletter-content h3 {
    color: var(--color-white);
    margin-bottom: var(--space-xs);
}

.newsletter-content p {
    opacity: 0.9;
    margin: 0;
}

.newsletter-form {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    flex: 1;
    width: 100%;
    max-width: 400px;
}

.newsletter-form input {
    flex: 1;
    min-width: 0;
    padding: 0.875rem 1rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: 16px; /* prevent iOS zoom on focus */
    appearance: none;
    -webkit-appearance: none;
}

.newsletter-form input:-webkit-autofill,
.newsletter-form input:-webkit-autofill:hover,
.newsletter-form input:-webkit-autofill:focus {
    -webkit-box-shadow: 0 0 0 30px rgba(0, 53, 128, 0.95) inset !important;
    -webkit-text-fill-color: var(--color-white) !important;
    caret-color: var(--color-white);
}

.newsletter-form input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--color-accent);
    background: rgba(255, 255, 255, 0.15);
}

.newsletter-form .btn {
    flex-shrink: 0;
}

.newsletter-success {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.newsletter-success svg {
    width: 24px;
    height: 24px;
    stroke: var(--color-accent-light);
}

@media (min-width: 768px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .blog-post-featured {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }
    
    .blog-post-featured .post-image {
        height: 100%;
    }
}

@media (min-width: 1024px) {
    .blog-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .blog-post-featured {
        grid-column: span 3;
    }
}

/* Knopfreihe statt Newsletter-Formular (bis ein Newsletter-Konzept steht) */
.newsletter-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.btn-symbol {
    flex-shrink: 0;
}