/* ============================================
   Blog List Styles
   Uses main.css design system
   ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--md-sys-color-primary);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.25rem;
}

/* Blog Header */
.blog-header {
    text-align: left;
    padding: 2rem 0;
    margin-bottom: 2rem;
}

.blog-header h1 {
    font-family: "Bitcount", sans-serif;
    font-size: 3rem;
    color: var(--md-sys-color-on-primary);
    margin-bottom: 0.5rem;
}

/* Filters */
.filters {
    display: none;
    margin-bottom: 2rem;
    display: flex;
    justify-content: center;
}

.tag-filters {
    display: none;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    justify-content: center;
}

.filter-label {
    font-family: "Lexend", sans-serif;
    font-weight: 500;
    font-size: 1.125rem;
    color: var(--md-sys-color-on-primary);
    margin-right: 0.5rem;
}

.tag-filter {
    padding: 0.6rem 1.2rem;
    font-family: "Lexend", sans-serif;
    font-weight: 500;
    background-color: var(--md-sys-color-primary-fixed);
    color: var(--md-sys-color-on-primary-fixed);
    border: none;
    border-radius: 2rem;
    cursor: pointer;
    transition: all 0.2s var(--std-easing);
    box-shadow: 0 2px 0 var(--md-sys-color-primary-fixed-dim);
}

.tag-filter:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 0 var(--md-sys-color-primary-fixed-dim);
}

.tag-filter:active {
    transform: translateY(2px);
    box-shadow: 0 0 0 var(--md-sys-color-primary-fixed-dim);
}

.tag-filter.active {
    background-color: var(--md-sys-color-tertiary);
    color: var(--md-sys-color-on-tertiary);
    box-shadow: 0 2px 0 var(--md-sys-color-tertiary-fixed-dim);
}

.tag-filter.active:hover {
    box-shadow: 0 4px 0 var(--md-sys-color-tertiary-fixed-dim);
}

/* Blog Grid */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.blog-card {
    background-color: var(--md-sys-color-primary);
    overflow: hidden;
    box-shadow: 0 0 0 var(--md-sys-color-on-primary);
    transition:
        transform 0.1s var(--std-easing),
        box-shadow 0.1s var(--std-easing);
}

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 0 var(--md-sys-color-on-primary);
}

.blog-card:active {
    transform: translateY(0);
    box-shadow: 0 0 0 var(--md-sys-color-on-primary);
}

.card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.card-image {
    width: 100%;
    height: 220px;
    background-size: cover;
    background-position: center;
    background-color: var(--md-sys-color-surface-dim);
}

.card-content {
    padding: 1rem;
}

.card-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.author-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--md-sys-color-primary);
}

.meta-info {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.author {
    font-family: "Lexend", sans-serif;
    font-weight: 600;
    color: var(--md-sys-color-on-primary);
}

.date {
    font-family: "Noto Sans", sans-serif;
    font-size: 0.8rem;
    color: var(--md-sys-color-on-primary);
}

.read-time {
    font-family: "Noto Sans", sans-serif;
    font-size: 0.8rem;
    color: var(--md-sys-color-on-primary);
    white-space: nowrap;
}

.card-title {
    font-family: "Lexend", sans-serif;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--md-sys-color-on-primary);
    line-height: 1.3;
}

.card-excerpt {
    font-family: "Merriweather", serif;
    color: var(--md-sys-color-on-primary);
    margin-bottom: 1rem;
    line-height: 1.6;
    font-size: 0.95rem;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    padding: 0.5rem 0.6rem;
    color: var(--md-sys-color-on-primary);
    border: 1px solid var(--md-sys-color-on-primary);
    border-radius: 0.3rem;
    font-family: "Lexend", sans-serif;
    font-size: 0.75rem;
    font-weight: 500;
}

/* States */
.loading,
.error-state,
.empty-state {
    text-align: center;
    padding: 3rem;
    font-family: "Lexend", sans-serif;
    color: var(--md-sys-color-on-primary);
    font-size: 1.125rem;
}

.error-state {
    background-color: var(--md-sys-color-error-container);
    border-radius: 1rem;
    color: var(--md-sys-color-on-error-container);
}

/* Responsive Design */
@media (max-width: 768px) {
    .blog-grid {
        grid-template-columns: 1fr;
    }

    .blog-header h1 {
        font-size: 3rem;
    }

    .card-title {
        font-size: 1.25rem;
    }

    .tag-filters {
        font-size: 0.875rem;
    }
}

@media (max-width: 480px) {
    .blog-header {
        padding: 1.5rem 0;
    }

    .blog-header h1 {
        font-size: 2.5rem;
    }

    .card-content {
        padding: 1rem;
    }

    .container {
        padding: 1rem;
    }
}