/* =========================================================================
   Side columns, shared by the homepage and the article page: the white
   rail cards, the news feed and the numbered most-read list.
   ========================================================================= */

/* ---------- Rail shell ---------------------------------------------------- */

.rail-box {
    padding: var(--space-3);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 1px 2px rgb(16 21 28 / 0.04);
}

.rail-box + .rail-box {
    margin-block-start: var(--space-4);
}

.rail-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-ui);
    font-size: var(--fs-sm);
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text);
    padding-block-end: var(--space-2);
    margin-block-end: var(--space-2);
    padding-inline-start: var(--space-2);
    border-inline-start: 3px solid var(--accent);
}

.rail-title svg {
    width: 18px;
    height: 18px;
    flex: none;
    fill: none;
    stroke: var(--accent);
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* ---------- Trends and picks ---------------------------------------------- */

.trend-chips,
.pick-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.trend-chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.trend-chips a {
    display: inline-block;
    padding: 4px var(--space-2);
    border: 1px solid var(--border);
    border-radius: 999px;
    font-family: var(--font-ui);
    font-size: var(--fs-xs);
    font-weight: 600;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.trend-chips a:hover {
    background: var(--accent-soft);
    border-color: var(--accent);
    color: var(--accent);
}

.pick-list {
    display: grid;
    gap: var(--space-3);
}

.pick-list > li {
    padding-inline-start: var(--space-3);
    border-inline-start: 2px solid var(--accent);
}

.pick-list a {
    display: block;
    font-size: var(--fs-sm);
    font-weight: 600;
    line-height: var(--lh-snug);
}

.pick-list a:hover {
    color: var(--accent);
}

.pick-cat {
    display: block;
    margin-block-start: 2px;
    font-family: var(--font-ui);
    font-size: var(--fs-xs);
    color: var(--text-muted);
}

/* =========================================================================
   5. Side columns: news feed and most read
   ========================================================================= */

.feed-box {
    display: flex;
    flex-direction: column;
    padding: 0;
    overflow: hidden;
}

.feed-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-3) 0;
}

.feed-head .rail-title {
    margin: 0;
    padding-block-end: 0;
}

.feed {
    list-style: none;
    margin: 0;
    padding: 0 var(--space-3) var(--space-2);
    display: grid;
    max-height: 420px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}

/* Beside the slider the feed is as tall as the screen allows. */
@media (min-width: 1280px) {
    .feed {
        max-height: calc(100vh - var(--header-h, 64px) - 150px);
        min-height: 360px;
    }
}

.feed-day {
    position: sticky;
    inset-block-start: 0;
    z-index: 1;
    padding: var(--space-2) 0;
    background: var(--bg);
    font-family: var(--font-ui);
    font-size: var(--fs-xs);
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.feed > li:not(.feed-day) {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr);
    gap: var(--space-2);
    padding: var(--space-2) var(--space-1);
    border-block-end: 1px solid var(--border);
    border-radius: var(--radius-sm);
    align-items: start;
    transition: background var(--transition);
}

.feed > li:not(.feed-day):hover {
    background: var(--accent-soft);
}

.feed time {
    font-family: var(--font-ui);
    font-size: var(--fs-xs);
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    color: var(--accent);
    padding-block-start: 2px;
}

.feed a {
    font-size: var(--fs-sm);
    font-weight: 600;
    line-height: var(--lh-snug);
    transition: color var(--transition);
}

.feed a:hover {
    color: var(--accent);
}

.feed .is-breaking a {
    color: var(--accent);
}

.feed-all {
    display: block;
    padding: var(--space-3);
    border-block-start: 1px solid var(--border);
    font-family: var(--font-ui);
    font-size: var(--fs-sm);
    font-weight: 600;
    text-align: center;
    color: var(--accent);
}

.feed-all:hover {
    text-decoration: underline;
}

/* ---------- Most read, with period tabs ----------------------------------- */

.rank-tabs {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: 1fr;
    gap: 2px;
    padding: 3px;
    margin-block-end: var(--space-3);
    background: var(--surface-2);
    border-radius: 999px;
}

.rank-tabs button {
    padding: 6px var(--space-2);
    border-radius: 999px;
    font-family: var(--font-ui);
    font-size: var(--fs-xs);
    font-weight: 600;
    color: var(--text-muted);
    transition: background var(--transition), color var(--transition);
}

.rank-tabs button[aria-selected='true'] {
    background: var(--bg);
    color: var(--text);
    box-shadow: 0 1px 3px rgb(16 21 28 / 0.12);
}

.rank-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.rank-list > li + li {
    border-block-start: 1px solid var(--border);
}

.rank-list a {
    display: grid;
    grid-template-columns: 22px auto minmax(0, 1fr);
    gap: var(--space-2);
    align-items: center;
    padding-block: var(--space-3);
}

.rank-number {
    font-family: var(--font-display);
    font-size: var(--fs-md);
    font-weight: 800;
    line-height: 1;
    font-variant-numeric: tabular-nums;
    color: var(--accent);
}

.rank-thumb {
    width: 84px;
    height: 56px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.rank-body {
    display: grid;
    gap: 4px;
    min-width: 0;
    grid-column: 3;
}

.rank-title {
    font-size: var(--fs-sm);
    font-weight: 700;
    line-height: var(--lh-snug);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition);
}

.rank-list a:hover .rank-title {
    color: var(--accent);
}

.rank-list time {
    font-family: var(--font-ui);
    font-size: var(--fs-xs);
    color: var(--text-muted);
}

/* The first one: a picture across the column with the number on it. */
.rank-lead a {
    grid-template-columns: minmax(0, 1fr);
    padding-block-start: 0;
}

.rank-lead .rank-body {
    grid-column: 1;
}

.rank-lead .rank-title {
    font-size: var(--fs-base);
}

.rank-media {
    position: relative;
    display: block;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: var(--radius-sm);
    background: var(--surface-2);
}

.rank-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.rank-media .rank-number {
    position: absolute;
    inset-block-start: var(--space-2);
    inset-inline-start: var(--space-2);
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    font-size: var(--fs-sm);
}


/* ---------- Thumbnail list ------------------------------------------------ */

.thumb-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.thumb-list > li + li {
    border-block-start: 1px solid var(--border);
}

.thumb-list a {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: var(--space-3);
    align-items: start;
    padding-block: var(--space-3);
}

.thumb-list img {
    width: 96px;
    height: 64px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.thumb-list a > span {
    display: grid;
    gap: 4px;
    grid-column: 2;
}

.thumb-list-title {
    font-size: var(--fs-sm);
    font-weight: 700;
    line-height: var(--lh-snug);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition);
}

.thumb-list a:hover .thumb-list-title {
    color: var(--accent);
}

.thumb-list time {
    font-family: var(--font-ui);
    font-size: var(--fs-xs);
    color: var(--text-muted);
}