/* ============================================================
   Category / tag / search listing pages
   Header band + category tabs + lead article + article list + popular aside.
   Linked globally in ApplicationRoots/App.razor.
   ============================================================ */

.cat-container {
    max-width: 84rem;
    margin: 0 auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

@media (min-width: 1024px) {
    .cat-container {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
}

/* ---------- Header band ---------- */
.cat-head {
    border-bottom: 1px solid var(--tg-border);
    background-color: #f2f4f8;
}

.cat-head__inner {
    padding-top: 1.75rem;
    padding-bottom: 1.75rem;
}

.cat-head__title {
    margin: 1rem 0 0;
    font-family: 'Montserrat', sans-serif;
    font-size: 1.875rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--tg-text);
}

.cat-head__desc {
    max-width: 42rem;
    margin: 0.5rem 0 0;
    line-height: 1.6;
    color: var(--tg-text-muted);
}

.cat-head__count {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-top: 0.75rem;
    font-size: 0.875rem;
    color: var(--tg-text-muted);
}

.cat-head__count .material-symbols-outlined {
    font-size: 1rem;
    color: var(--tg-primary);
}

/* ---------- Category tabs ---------- */
.cat-tabs {
    border-bottom: 1px solid var(--tg-border);
    background-color: var(--tg-bg-elev);
}

.cat-tabs__inner {
    display: flex;
    gap: 0.25rem;
    overflow-x: auto;
    scrollbar-width: thin;
}

.cat-tabs .cat-tab {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.85rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--tg-text-muted);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: color 0.2s ease, border-color 0.2s ease;
}

.cat-tabs .cat-tab:hover {
    color: var(--tg-text);
}

.cat-tabs .cat-tab--active {
    color: var(--tg-primary);
    font-weight: 600;
    border-bottom-color: var(--tg-primary);
}

/* ---------- Body ---------- */
.cat-body {
    padding-top: 2rem;
    padding-bottom: 3rem;
}

/* ---------- Two-column layout (list + popular aside) ---------- */
.cat-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 2rem;
}

.cat-main {
    min-width: 0;
}

@media (min-width: 1024px) {
    .cat-layout--aside {
        grid-template-columns: minmax(0, 1fr) 20rem;
        gap: 2.5rem;
    }

    .cat-aside {
        position: sticky;
        top: 5.5rem;
        align-self: start;
    }
}

/* ---------- Lead (featured) article ---------- */
.cat-lead {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    overflow: hidden;
    margin-bottom: 2rem;
    background-color: var(--tg-bg-elev);
    border: 1px solid var(--tg-border);
    border-radius: 1rem;
    color: inherit;
    text-decoration: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.cat-lead:hover {
    border-color: rgba(37, 99, 235, 0.4);
    box-shadow: 0 12px 24px -8px rgba(15, 23, 42, 0.15);
}

.cat-lead__media {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.cat-lead__image {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.cat-lead:hover .cat-lead__image {
    transform: scale(1.05);
}

.cat-lead__body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.75rem;
    padding: 1.5rem;
}

.cat-lead__badge {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    gap: 0.35rem;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--tg-accent-fg);
    background-color: var(--tg-accent);
    border-radius: 9999px;
}

.cat-lead__title {
    margin: 0;
    font-family: 'Montserrat', sans-serif;
    font-size: 1.375rem;
    font-weight: 700;
    line-height: 1.25;
    color: var(--tg-text);
    transition: color 0.2s ease;
}

.cat-lead:hover .cat-lead__title {
    color: var(--tg-primary);
}

.cat-lead__excerpt {
    margin: 0;
    line-height: 1.6;
    color: var(--tg-text-muted);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.cat-lead__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.25rem 0.5rem;
    padding-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--tg-text-muted);
}

.cat-lead__author {
    font-weight: 500;
    color: var(--tg-text);
}

.cat-lead__views {
    display: inline-flex;
    align-items: center;
    gap: 0.2rem;
}

.cat-lead__views .material-symbols-outlined {
    font-size: 0.875rem;
}

/* ---------- Toolbar (heading + sort) ---------- */
.cat-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}

.cat-toolbar__title {
    margin: 0;
    font-family: 'Montserrat', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--tg-text);
}

.cat-sort {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--tg-text-muted);
}

.cat-sort .material-symbols-outlined {
    font-size: 1.125rem;
}

.cat-sort__select {
    padding: 0.45rem 2.25rem 0.45rem 0.85rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--tg-text);
    background-color: var(--tg-bg-elev);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='none' stroke='%236b7280' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5.5 8l4.5 4.5L14.5 8'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    -webkit-appearance: none;
    appearance: none;
    border: 1px solid var(--tg-border);
    border-radius: var(--tg-radius-lg);
    cursor: pointer;
    outline: none;
    transition: border-color 0.2s ease;
}

.cat-sort__select:hover,
.cat-sort__select:focus {
    border-color: var(--tg-primary);
}

/* ---------- Empty ---------- */
.cat-empty {
    padding: 2.5rem 1.5rem;
    margin: 0;
    text-align: center;
    font-size: 0.9rem;
    color: var(--tg-text-muted);
    background-color: var(--tg-bg-elev);
    border: 1px dashed var(--tg-border);
    border-radius: var(--tg-radius-xl);
}

@media (min-width: 768px) {
    .cat-head__inner {
        padding-top: 2.25rem;
        padding-bottom: 2.25rem;
    }

    .cat-head__title {
        font-size: 2.25rem;
    }

    .cat-lead {
        grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    }

    .cat-lead__media {
        aspect-ratio: auto;
        height: 100%;
        min-height: 15rem;
    }

    .cat-lead__body {
        padding: 1.5rem 1.75rem;
    }

    .cat-body {
        padding-top: 2.25rem;
    }
}