/* ==========================================================================
   Baharak — Blog list
   Loaded only by blog/templates/blog/list.html via the extra_head block.
   ========================================================================== */

/* ----- Hero ----- */

.blog-hero {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    padding-block: var(--space-7);
    background:
        radial-gradient(40rem 18rem at 90% -20%, var(--color-primary-100) 0%, transparent 65%),
        radial-gradient(32rem 16rem at 5% 130%, var(--color-secondary-50) 0%, transparent 60%),
        linear-gradient(to left, var(--color-primary-50), var(--color-surface));
    border-block-end: 1px solid var(--color-border);
}

.blog-hero-content {
    position: relative;
    z-index: 1;
    width: min(100% - 2.5rem, var(--container-width));
    margin-inline: auto;
    text-align: center;
}

.blog-hero-title {
    margin-block-end: var(--space-2);
    color: var(--color-primary-700);
}

.blog-hero-title::after {
    content: "";
    display: block;
    width: 3.5rem;
    height: 0.25rem;
    margin: var(--space-3) auto 0;
    background: linear-gradient(to left, var(--color-primary-500), var(--color-secondary-500));
    border-radius: var(--radius-full);
}

.blog-hero-subtitle {
    margin: 0;
    color: var(--text-body);
}

.blog-hero-pattern {
    position: absolute;
    inset: 0;
    z-index: 0;
    background-image: radial-gradient(currentColor 1px, transparent 1.2px);
    background-size: 22px 22px;
    color: var(--color-primary-600);
    opacity: 0.08;
    -webkit-mask-image: linear-gradient(to bottom, #000, transparent 85%);
    mask-image: linear-gradient(to bottom, #000, transparent 85%);
}

/* ----- Page layout ----- */

.blog-container {
    display: grid;
    gap: var(--space-6);
    width: min(100% - 2.5rem, var(--container-width));
    margin-inline: auto;
    padding-block: var(--space-6) var(--space-8);
}

@media (min-width: 64em) {
    .blog-container {
        grid-template-columns: 17rem minmax(0, 1fr);
        align-items: start;
    }
}

/* ----- Sidebar ----- */

.blog-sidebar {
    display: grid;
    gap: var(--space-4);
}

@media (min-width: 64em) {
    .blog-sidebar {
        position: sticky;
        top: calc(var(--header-height) + var(--space-4));
    }
}

.sidebar-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    box-shadow: var(--shadow-sm);
}

.sidebar-title {
    margin-block-end: var(--space-3);
    font-size: var(--text-md);
}

/* ----- Category list ----- */

.category-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.category-item {
    display: block;
    inline-size: 100%;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-full);
    color: var(--text-body);
    font-size: var(--text-sm);
    cursor: pointer;
    border: 1px solid transparent;
    transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease;
}

.category-item:hover {
    background: var(--color-primary-50);
    color: var(--color-primary-700);
}

.category-item.active {
    background: var(--color-primary-600);
    color: var(--text-inverse);
    font-weight: 500;
}

/* دسته‌بندی‌های نمایشی (غیرقابل کلیک) */
.category-list--static .category-item,
.category-list--static .category-item:hover {
    cursor: default;
    background: transparent;
    color: var(--text-body);
}

.category-list--static .category-item {
    border-color: var(--color-border);
}

@media (max-width: 63.99em) {
    .category-list {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-block-end: var(--space-1);
        scrollbar-width: thin;
    }

    .category-item {
        inline-size: auto;
        white-space: nowrap;
        background: var(--color-bg-section);
    }

    .category-item.active {
        background: var(--color-primary-600);
    }
}

/* ----- Search ----- */

.search-box {
    display: flex;
    gap: var(--space-2);
    background: var(--color-bg-page);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    padding: 0.1875rem 0.25rem;
    transition: border-color 160ms ease, box-shadow 160ms ease;
}

.search-box:focus-within {
    border-color: var(--color-primary-600);
    box-shadow: 0 0 0 3px var(--color-primary-100);
}

.search-box input {
    flex: 1;
    min-inline-size: 0;
    border: 0;
    background: transparent;
    padding: var(--space-2) var(--space-3);
    font: inherit;
    font-size: var(--text-sm);
    color: var(--text-strong);
}

.search-box input:focus {
    outline: none;
}

.search-box input::placeholder {
    color: var(--text-body);
}

.search-box button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    inline-size: 2.25rem;
    block-size: 2.25rem;
    flex-shrink: 0;
    border: 0;
    border-radius: var(--radius-full);
    background: var(--color-primary-600);
    color: var(--text-inverse);
    cursor: pointer;
    transition: background-color 160ms ease;
}

.search-box button:hover {
    background: var(--color-primary-700);
}

/* ----- States: loading / empty / error ----- */

.blog-loading,
.blog-empty,
.blog-error {
    display: grid;
    justify-items: center;
    gap: var(--space-3);
    padding: var(--space-7) var(--space-4);
    text-align: center;
    background: var(--color-surface);
    border: 1px dashed var(--color-border-strong);
    border-radius: var(--radius-lg);
    color: var(--text-muted);
}

.blog-loading h3,
.blog-empty h3,
.blog-error h3 {
    margin: 0;
    font-size: var(--text-lg);
    color: var(--text-strong);
}

.blog-loading p,
.blog-empty p,
.blog-error p {
    margin: 0;
    max-width: 30rem;
}

.blog-empty svg,
.blog-error svg {
    color: var(--text-muted);
}

.blog-error h3 {
    color: var(--color-error);
}

.loading-spinner {
    inline-size: 2.5rem;
    block-size: 2.5rem;
    border: 3px solid var(--color-primary-100);
    border-block-start-color: var(--color-primary-600);
    border-radius: var(--radius-full);
    animation: blog-spin 700ms linear infinite;
}

@keyframes blog-spin {
    to { rotate: 360deg; }
}

@media (prefers-reduced-motion: reduce) {
    .loading-spinner {
        animation-duration: 2s;
    }
}

/* ----- Article grid & cards ----- */

.blog-grid {
    display: grid;
    gap: var(--space-5);
    grid-template-columns: 1fr;
}

@media (min-width: 48em) {
    .blog-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 78em) {
    .blog-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

.blog-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 220ms ease, transform 220ms ease, border-color 220ms ease;
}

.blog-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-primary-100);
    box-shadow: var(--shadow-md);
}

.blog-card__media {
    position: relative;
    display: block;
    aspect-ratio: 16 / 9;
    background: linear-gradient(135deg, var(--color-primary-50), var(--color-secondary-50));
    overflow: hidden;
}

.blog-card__media img {
    inline-size: 100%;
    block-size: 100%;
    object-fit: cover;
    transition: transform 320ms ease;
}

.blog-card:hover .blog-card__media img {
    transform: scale(1.04);
}

.blog-card__placeholder {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    color: var(--color-primary-600);
    opacity: 0.5;
}

.blog-card__body {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding: var(--space-4);
    flex: 1;
}

.blog-card__cats {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.blog-card__title {
    margin: 0;
    font-size: var(--text-lg);
    line-height: var(--line-height-tight);
}

.blog-card__title a {
    color: var(--text-strong);
}

.blog-card__title a:hover {
    color: var(--color-primary-600);
}

.blog-card__summary {
    margin: 0;
    font-size: var(--text-sm);
    color: var(--text-muted);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-3);
    margin-block-start: auto;
    padding-block-start: var(--space-3);
    border-block-start: 1px solid var(--color-border);
    font-size: var(--text-xs);
    color: var(--text-muted);
}

.blog-card__meta span {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
}

.blog-card__read {
    margin-inline-start: auto;
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    color: var(--color-primary-600);
    font-weight: 500;
}

.blog-card:hover .blog-card__read {
    color: var(--color-primary-700);
}

.blog-card__read svg {
    transition: translate 160ms ease;
}

.blog-card:hover .blog-card__read svg {
    translate: -3px 0;
}

/* ----- Pagination ----- */

.blog-pagination {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: var(--space-2);
    margin-block-start: var(--space-6);
}

.blog-pagination:empty {
    display: none;
}

.page-btn {
    min-inline-size: 2.5rem;
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    background: var(--color-surface);
    color: var(--text-body);
    font: inherit;
    font-size: var(--text-sm);
    cursor: pointer;
    transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease;
}

.page-btn:hover:not(:disabled) {
    border-color: var(--color-primary-600);
    color: var(--color-primary-700);
    background: var(--color-primary-50);
}

.page-btn[aria-current="page"] {
    background: var(--color-primary-600);
    border-color: var(--color-primary-600);
    color: var(--text-inverse);
    font-weight: 500;
}

.page-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.page-ellipsis {
    padding-inline: var(--space-1);
    color: var(--text-body);
}