/* WG21 All Threads page (page-owned).
 * Loaded from thread_list.html only, which also serves the month and day
 * archive views. Thread card rules live in threads.css; shared primitives
 * (.wg21-card, .wg21-section-label, .wg21-month-select) in components.css.
 *
 * No tab bar on this page — the navbar bottom rule is dropped and the
 * double-gold band below (.wg21-thread-list__rule) carries the same chrome
 * as .wg21-tabs on the list overview. */

.wg21-page-thread-list .wg21-content {
    padding-block-start: 0;
    background-color: var(--wg21-surface);
    background-image: var(--wg21-marble);
    background-size: cover;
    background-position: center;
}

.wg21-page-thread-list .wg21-navbar {
    border-bottom: none;
}

.wg21-page-thread-list footer {
    margin-top: 0;
}

/* Double gold rule — geometry matches .wg21-tabs on the list overview. */
.wg21-thread-list__rule {
    --wg21-tabs-rule: var(--wg21-frame-gap);
    --wg21-tabs-rule-band: 9px;
    --wg21-tabs-rule-offset: 15px;
    --wg21-tabs-rule-thin: 3px;
    position: relative;
    background: var(--wg21-surface);
    border-bottom: var(--wg21-tabs-rule) solid var(--wg21-gold);
    margin-inline: calc(-1 * var(--wg21-space-6));
    padding-inline: var(--wg21-space-6);
    margin-block-end: var(--wg21-space-8);
    min-block-size: var(--wg21-space-2);
}
.wg21-thread-list__rule::after {
    content: "";
    position: absolute;
    inset-inline: 0;
    bottom: calc(-1 * var(--wg21-tabs-rule-offset));
    height: var(--wg21-tabs-rule-band);
    background-color: var(--wg21-surface);
    border-block-end: var(--wg21-tabs-rule-thin) solid var(--wg21-gold-border);
    pointer-events: none;
}

/* Two-column body (~70/30), matching the overview layout. */
.wg21-thread-list__layout {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(16rem, 3fr);
    gap: var(--wg21-space-12);
    align-items: start;
    padding-inline: var(--wg21-space-2);
}
.wg21-thread-list__main,
.wg21-thread-list__aside {
    min-inline-size: 0;
}

/* Sidebar scrolls in normal document flow (no sticky / fixed rail). */
.wg21-thread-list__aside {
    display: flex;
    flex-direction: column;
    gap: var(--wg21-space-4);
    top: var(--wg21-space-4);
    position: sticky;
    align-self: start;
    height: auto;
    overflow: visible;
}
.wg21-thread-list__aside .wg21-card {
    border: 1px solid var(--wg21-border);
}

/* Header spans full width above the two-column body. */
.wg21-thread-list__header {
    margin-block-end: var(--wg21-space-8);
    padding-inline: var(--wg21-space-2);
}
.wg21-thread-list__title,
.wg21-thread-list h1.wg21-thread-list__title {
    font-family: var(--wg21-font-serif);
    font-size: 2.5rem !important; /* beat hyperkitty's h1 { !important } */
    font-weight: 400;
    line-height: var(--wg21-lh-tight);
    margin: 0 0 var(--wg21-space-2);
    text-wrap: balance;
}
.wg21-thread-list__title a,
.wg21-thread-list__title a:hover {
    color: var(--wg21-gold);
    text-decoration: none;
}
.wg21-thread-list__title a:hover {
    text-decoration: underline;
    text-underline-offset: 0.15em;
}
.wg21-thread-list__subtitle {
    margin: 0;
    color: var(--wg21-gold);
    font-family: var(--wg21-font-body);
    font-size: var(--wg21-fs-lead);
    text-wrap: pretty;
}
.wg21-thread-list__address {
    font-family: var(--wg21-font-mono);
    font-size: 0.9em;
}

/* Sidebar */
.wg21-thread-list__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--wg21-space-3);
}
.wg21-thread-list__actions .wg21-btn {
    flex: 1 1 min-content;
    min-height: var(--wg21-touch);
    min-width: 12.5rem;
}
/* The month select is compact by default (see components.css); stretch it to
 * the rail like the overview does. */
.wg21-thread-list__aside .wg21-month-select,
.wg21-thread-list__aside .wg21-month-select__btn {
    display: inline-flex;
    width: 100%;
}
.wg21-thread-list__aside .wg21-month-select .dropdown-menu {
    width: 100%;
}

/* Paginator: upstream markup, unstyled this pass. Just give it room. */
.wg21-thread-list .paginator {
    margin-block-start: var(--wg21-space-8);
}

/* Beat _hyperkitty-threadslist.scss hooks retained on #thread-list. */
#thread-list .thread-list-header { margin: 0; padding: 0; }

@media (max-width: 991.98px) {
    .wg21-thread-list__layout {
        grid-template-columns: 1fr;
        gap: var(--wg21-space-8);
        padding-inline: 0;
    }
    .wg21-thread-list__header {
        padding-inline: 0;
    }
}

@media (max-width: 767.98px) {
    .wg21-thread-list__rule {
        margin-inline: calc(-1 * var(--wg21-space-6));
        padding-inline: var(--wg21-space-4);
    }
}

@media (forced-colors: active) {
    .wg21-thread-list__rule { border-bottom: var(--wg21-frame-gold-width) solid CanvasText; }
    .wg21-thread-list__rule::after { border-block-end-color: CanvasText; }
}