/**
 * Blog Page Styles — Terminal/Hacker Theme
 * Font: JetBrains Mono | Colors: #22C55E primary, #0A0A0A bg
 */

/* ==========================================================================
   Blog Header
   ========================================================================== */

.blog-header {
    padding: 8rem 0 4rem;
    background: #0A0A0A;
    color: #D4D4D8;
    text-align: center;
    border-bottom: 1px solid rgba(34, 197, 94, 0.15);
    font-family: 'JetBrains Mono', monospace;
}

.blog-header__title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    color: #D4D4D8;
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: -0.02em;
}

.blog-header__title::before {
    content: '> ';
    color: #22C55E;
    font-weight: 400;
}

.blog-header__subtitle {
    font-size: 1rem;
    max-width: 700px;
    margin: 0 auto;
    color: #71717A;
    line-height: 1.7;
    font-family: 'JetBrains Mono', monospace;
}

/* ==========================================================================
   Blog Filters
   ========================================================================== */

.blog-filters {
    padding: 2rem 0;
    background: #0F0F0F;
    border-bottom: 1px solid rgba(34, 197, 94, 0.1);
}

.blog-filters__buttons {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
}

.blog-filters__button {
    padding: 0.5rem 1.125rem;
    border: 1px solid rgba(113, 113, 122, 0.3);
    background: #141414;
    color: #71717A;
    border-radius: 2px;
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    font-family: 'JetBrains Mono', monospace;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.blog-filters__button:hover {
    border-color: rgba(34, 197, 94, 0.4);
    background: rgba(34, 197, 94, 0.06);
    color: #22C55E;
}

.blog-filters__button.active {
    border-color: #22C55E;
    background: rgba(34, 197, 94, 0.1);
    color: #22C55E;
}

.blog-filters__button:focus {
    outline: 1px solid rgba(34, 197, 94, 0.5);
    outline-offset: 2px;
}

/* ==========================================================================
   Blog Listing
   ========================================================================== */

.blog-listing {
    padding: 4rem 0 6rem;
    min-height: 60vh;
    background: #0A0A0A;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-bottom: 4rem;
}

/* ==========================================================================
   Blog Card
   ========================================================================== */

.blog-card {
    background: #0F0F0F;
    border: 1px solid rgba(34, 197, 94, 0.12);
    border-radius: 2px;
    overflow: hidden;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
    font-family: 'JetBrains Mono', monospace;
}

.blog-card:hover {
    border-color: rgba(34, 197, 94, 0.35);
    box-shadow: 0 0 20px rgba(34, 197, 94, 0.06);
}

.blog-card__link {
    padding: 1.75rem;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
}

.blog-card__badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(245, 158, 11, 0.1);
    color: #F59E0B;
    border: 1px solid rgba(245, 158, 11, 0.25);
    padding: 0.2rem 0.6rem;
    border-radius: 2px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-family: 'JetBrains Mono', monospace;
}

.blog-card__category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 2px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    align-self: flex-start;
    font-family: 'JetBrains Mono', monospace;
    border: 1px solid transparent;
}

.blog-card__category--updates {
    background: rgba(6, 182, 212, 0.08);
    color: #06B6D4;
    border-color: rgba(6, 182, 212, 0.2);
}

.blog-card__category--research {
    background: rgba(245, 158, 11, 0.08);
    color: #F59E0B;
    border-color: rgba(245, 158, 11, 0.2);
}

.blog-card__category--products {
    background: rgba(34, 197, 94, 0.08);
    color: #22C55E;
    border-color: rgba(34, 197, 94, 0.2);
}

.blog-card__title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.875rem;
    line-height: 1.4;
    color: #D4D4D8;
    font-family: 'JetBrains Mono', monospace;
}

.blog-card__excerpt {
    font-size: 0.875rem;
    line-height: 1.7;
    color: #71717A;
    margin-bottom: 1.5rem;
    flex-grow: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    font-family: 'JetBrains Mono', monospace;
}

.blog-card__meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: #71717A;
    margin-top: auto;
    font-family: 'JetBrains Mono', monospace;
}

.blog-card__date {
    font-weight: 500;
    color: #71717A;
}

.blog-card__separator {
    opacity: 0.4;
    color: #22C55E;
}

.blog-card__read-time {
    font-weight: 500;
}

/* ==========================================================================
   Blog Loading & Empty States
   ========================================================================== */

.blog-loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 2rem;
    font-family: 'JetBrains Mono', monospace;
    color: #71717A;
}

.spinner {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 2px solid rgba(34, 197, 94, 0.15);
    border-left-color: #22C55E;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 1rem;
}

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

.blog-empty,
.blog-error {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 2rem;
    font-size: 0.9375rem;
    color: #71717A;
    font-family: 'JetBrains Mono', monospace;
}

.blog-error {
    color: #EF4444;
}

.blog-error::before {
    content: '[ERR] ';
    font-weight: 700;
}

/* ==========================================================================
   Pagination
   ========================================================================== */

.blog-pagination {
    display: flex;
    justify-content: center;
}

.pagination {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.pagination__button {
    min-width: 40px;
    height: 40px;
    padding: 0.375rem 0.875rem;
    border: 1px solid rgba(113, 113, 122, 0.3);
    background: #141414;
    color: #71717A;
    border-radius: 2px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: 'JetBrains Mono', monospace;
}

.pagination__button:hover {
    border-color: rgba(34, 197, 94, 0.4);
    background: rgba(34, 197, 94, 0.06);
    color: #22C55E;
}

.pagination__button--active {
    border-color: #22C55E;
    background: rgba(34, 197, 94, 0.1);
    color: #22C55E;
}

.pagination__button:focus {
    outline: 1px solid rgba(34, 197, 94, 0.5);
    outline-offset: 2px;
}

.pagination__ellipsis {
    padding: 0 0.375rem;
    color: #71717A;
    font-weight: 600;
    font-family: 'JetBrains Mono', monospace;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 768px) {
    .blog-header {
        padding: 6rem 0 3rem;
    }

    .blog-header__title {
        font-size: 2rem;
    }

    .blog-header__subtitle {
        font-size: 0.9375rem;
    }

    .blog-filters {
        padding: 1.5rem 0;
    }

    .blog-filters__buttons {
        gap: 0.5rem;
    }

    .blog-filters__button {
        padding: 0.5rem 1rem;
        font-size: 0.75rem;
    }

    .blog-listing {
        padding: 3rem 0 4rem;
    }

    .blog-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
        margin-bottom: 3rem;
    }

    .blog-card__link {
        padding: 1.25rem;
    }

    .blog-card__title {
        font-size: 1rem;
    }

    .pagination {
        gap: 0.25rem;
    }

    .pagination__button {
        min-width: 36px;
        height: 36px;
        padding: 0.375rem;
        font-size: 0.8125rem;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1440px) {
    .blog-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}