/* =====================================================================
   CONTESTS AREA — page stylesheet  (CONSTRUCTIVIST)
   Loaded after style.css; consumes its design tokens (--brand, --sp-*,
   --structure, --border-*, --shadow-hard*, --surface*, --text-*). Square
   corners, thick ink borders, hard offset shadows, solid color blocks.
   Every rule has .dark parity. Palette unchanged: maroon / taupe / rose /
   cream, plus ONE calm reserved accent (teal) for the "Rated" marker.
   ===================================================================== */

:root {
    --contest-accent: #0e7490;            /* rated accent (light) */
    --contest-accent-soft: rgba(14, 116, 144, 0.10);
    --contest-accent-border: rgba(14, 116, 144, 0.35);
}

.dark {
    --contest-accent: #7bd7ff;            /* rated accent (dark) */
    --contest-accent-soft: rgba(123, 215, 255, 0.12);
    --contest-accent-border: rgba(123, 215, 255, 0.40);
}

/* ---------------------------------------------------------------------
   Floating contest timer — a solid maroon block, square, thick ink edge,
   hard offset shadow, tabular digits. Overrides the gold gradient
   treatment from style.css (.floating-widget / .time-left). The JS drag
   logic and .timer-urgent pulse hooks are untouched.
   --------------------------------------------------------------------- */
.floating-widget {
    background-image: none;
    background-color: var(--brand);
    color: #f4f1ea;
    border: var(--border-thick) solid var(--structure);
    border-image: none;
    border-radius: 0;
    box-shadow: var(--shadow-hard);
    width: auto;
    min-width: 176px;
    max-width: calc(100vw - 24px);
    height: auto;
    min-height: 0;
    padding: var(--sp-3) var(--sp-4);
}

.floating-widget .widget-header {
    gap: var(--sp-2);
    font-size: var(--fs-75) !important; /* beats the legacy inline size */
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(244, 241, 234, 0.82);
}

.floating-widget .time-left {
    background: none;
    -webkit-background-clip: initial;
    -webkit-text-fill-color: currentColor;
    color: #f4f1ea !important;
    font-size: var(--fs-150);
    font-weight: var(--fw-display);
    letter-spacing: 0.02em;
    font-variant-numeric: tabular-nums;
}

/* Final-minute urgency: keep the pulse from style.css, swap the loud
   gradient fills for a solid alarm red and a bright ink edge. */
.floating-widget.timer-urgent {
    background-image: none;
    background-color: #8f1d24;
    border: var(--border-thick) solid var(--structure);
    border-image: none;
}

/* In dark mode --structure flips bright; keep the ink edge legible. */
.dark .floating-widget { border-color: var(--structure); }

.dark .floating-widget .widget-header span,
.dark .floating-widget .time-left {
    color: #fff !important;
}

/* ---------------------------------------------------------------------
   Shared page header (title + chips + actions)
   --------------------------------------------------------------------- */
.contest-heading {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--sp-2) var(--sp-3);
    margin-bottom: var(--sp-4);
}

.contest-heading h1 {
    margin: 0;
    font-weight: var(--fw-display);
    letter-spacing: -0.01em;
}

.contest-heading__actions {
    display: inline-flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--sp-2);
    margin-left: auto;
}

/* ---------------------------------------------------------------------
   Chips — quiet pills used for contest style / participation / tags
   --------------------------------------------------------------------- */
.contest-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-1);
    padding: 0.2rem 0.6rem;
    border-radius: 0;
    font-size: var(--fs-75);
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    line-height: 1.5;
    white-space: nowrap;
    border: var(--border-thin) solid transparent;
    vertical-align: middle;
    transition: transform 0.15s ease; /* grow.js hover scale */
}

.contest-chip--brand {
    color: var(--brand);
    background-color: rgba(116, 31, 34, 0.08);
    border-color: rgba(116, 31, 34, 0.28);
}

.contest-chip--muted {
    color: var(--text-muted);
    background-color: var(--surface-2);
    border-color: var(--surface-border);
}

.contest-chip--ok {
    color: var(--status-ac);
    background-color: rgba(25, 135, 84, 0.10);
    border-color: rgba(25, 135, 84, 0.30);
}

.contest-chip--ended {
    color: var(--status-wa);
    background-color: rgba(220, 53, 69, 0.08);
    border-color: rgba(220, 53, 69, 0.28);
}

.contest-chip--ended s {
    color: inherit;
    font-weight: inherit;
}

.contest-chip--rated {
    color: var(--contest-accent);
    background-color: var(--contest-accent-soft);
    border-color: var(--contest-accent-border);
}

.contest-chip--tag {
    text-transform: none;
    letter-spacing: 0.01em;
    color: var(--text-muted);
    background-color: var(--surface-2);
    border-color: var(--surface-border);
}

a.contest-chip {
    text-decoration: none;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

a.contest-chip:hover,
a.contest-chip:focus-visible {
    border-color: var(--brand);
    color: var(--brand);
}

.dark .contest-chip--brand {
    color: #f0a8ad;
    background-color: rgba(240, 168, 173, 0.12);
    border-color: rgba(240, 168, 173, 0.35);
}

.dark .contest-chip--muted,
.dark .contest-chip--tag {
    color: var(--dark-muted);
    background-color: var(--dark-surface-2);
    border-color: var(--dark-border);
}

.dark .contest-chip--ok {
    color: #4fd6b8;
    background-color: rgba(43, 184, 162, 0.14);
    border-color: rgba(43, 184, 162, 0.40);
}

.dark .contest-chip--ended {
    color: #f59aa3;
    background-color: rgba(240, 123, 135, 0.12);
    border-color: rgba(240, 123, 135, 0.40);
}

.dark a.contest-chip:hover,
.dark a.contest-chip:focus-visible {
    border-color: var(--dark-link);
    color: var(--dark-link);
}

/* Force chip text color over the broad `.dark span` rule */
.dark .contest-chip--brand { color: #f0a8ad !important; }
.dark .contest-chip--muted, .dark .contest-chip--tag { color: var(--dark-muted) !important; }
.dark .contest-chip--ok { color: #4fd6b8 !important; }
.dark .contest-chip--ended { color: #f59aa3 !important; }
.dark .contest-chip--rated { color: var(--contest-accent) !important; }

/* ---------------------------------------------------------------------
   Outline-brand button (counterpart to the global .btn-brand)
   --------------------------------------------------------------------- */
.btn-outline-brand {
    color: var(--brand);
    background-color: transparent;
    border: var(--border-thick) solid var(--brand);
}

.btn-outline-brand:hover,
.btn-outline-brand:focus {
    color: var(--brand-dark);
    background-color: rgba(116, 31, 34, 0.06);
    border-color: var(--brand);
}

.btn-outline-brand:active {
    color: var(--brand-darker) !important;
    border-color: var(--brand-darker) !important;
    background-color: rgba(116, 31, 34, 0.10) !important;
}

.dark .btn-outline-brand {
    color: var(--dark-link);
    border-color: var(--dark-link);
}

.dark .btn-outline-brand:hover,
.dark .btn-outline-brand:focus {
    color: var(--dark-link-hover);
    background-color: rgba(123, 215, 255, 0.10);
    border-color: var(--dark-link);
}

/* ---------------------------------------------------------------------
   Contests listing (contests.html)
   --------------------------------------------------------------------- */
.contests-page-header {
    margin-bottom: var(--sp-3);
}

.contests-page-header .con-eyebrow {
    margin-bottom: var(--sp-2);
}

.contests-page-header .display-heading {
    margin: 0;
}

.contests-intro {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    font-size: var(--fs-875);
    color: var(--text-muted);
}

.contest-filter-card {
    border: var(--border-thick) solid var(--structure);
    border-radius: 0;
    box-shadow: var(--shadow-hard);
}

.contest-filter-card .form-label {
    font-size: var(--fs-75);
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.contest-filter-card .form-control,
.contest-filter-card .form-select {
    border-radius: 0;
}

/* Section labels: a heavy uppercase display block led by a thick ink rule
   above it (the rule is drawn by the preceding ::before bar). */
.contests-section-heading {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    margin-top: var(--sp-4);
    font-weight: var(--fw-display);
    font-size: var(--fs-400);
    line-height: 0.95;
    text-transform: uppercase;
    letter-spacing: -0.01em;
    color: var(--text-strong);
    border-top: var(--border-bold) solid var(--structure);
    padding-top: var(--sp-3);
}

.contests-section-heading::after {
    content: "";
    flex: 1;
    height: var(--border-thin);
    align-self: center;
    background: var(--surface-border);
}

.contests-section-heading .contests-section-count {
    font-size: var(--fs-150);
    font-weight: var(--fw-display);
    color: var(--brand);
    font-variant-numeric: tabular-nums;
}

.dark .contests-section-heading { color: var(--dark-text); border-top-color: var(--structure); }
.dark .contests-section-heading::after { background: var(--dark-border); }
.dark .contests-section-heading .contests-section-count { color: #f0a8ad !important; }

.contests-empty {
    padding: var(--sp-8) var(--sp-5);
    text-align: center;
    border: var(--border-thick) dashed var(--surface-border);
    border-radius: 0;
    background: var(--surface-2);
    color: var(--text-muted);
    margin: var(--sp-4) 0 var(--sp-2);
}

.contests-empty .contests-empty__title {
    font-weight: 700;
    font-size: var(--fs-100);
    color: var(--text-strong);
    margin: 0 0 var(--sp-1);
}

.contests-empty p {
    margin: 0;
    font-size: var(--fs-875);
}

.dark .contests-empty {
    border-color: var(--dark-border);
    background: var(--dark-surface-2);
}

.dark .contests-empty .contests-empty__title { color: var(--dark-text); }
.dark .contests-empty p { color: var(--dark-muted); }

/* --- Contest card: thick ink edge + hard offset shadow, lifts toward the
   shadow on hover (Constructivist tile). --- */
.contest-card.post-card {
    padding: var(--sp-5) var(--sp-6) var(--sp-6);
    border: var(--border-thick) solid var(--structure);
    border-radius: 0;
    box-shadow: var(--shadow-hard);
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.contest-card.post-card:hover {
    transform: translate(-3px, -3px);
    box-shadow: 7px 7px 0 var(--structure);
}

/* keep the "See More" fade strip aligned with the new padding */
.contest-card > .see-more-wrapper {
    margin-left: 0;
    left: 0;
    padding: var(--sp-1) var(--sp-6);
}

/* Rated marker: one calm, bold maroon block on the leading edge. */
.contest-card--rated {
    border-left: var(--border-bold) solid var(--brand) !important;
}

.contest-card__head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--sp-2) var(--sp-3);
    margin-bottom: var(--sp-2);
    /* keep clear of the absolutely-positioned admin tools */
    padding-right: var(--sp-12);
}

.contest-card__title {
    margin: 0;
    font-size: var(--fs-125);
    font-weight: 700;
}

.contest-card__title a {
    color: inherit;
}

.contest-card__title a:hover,
.contest-card__title a:focus-visible {
    color: var(--brand);
    text-decoration: underline;
}

.dark .contest-card__title a:hover,
.dark .contest-card__title a:focus-visible {
    color: var(--dark-link);
}

.contest-card__chips {
    display: inline-flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--sp-1) var(--sp-2);
}

.contest-card__meta {
    margin-bottom: var(--sp-3);
}

.contest-card__meta p {
    margin: 0 0 var(--sp-1);
    font-size: var(--fs-875);
    color: var(--text-muted);
}

.contest-card__meta p b {
    color: var(--text-strong);
    font-weight: 600;
}

.dark .contest-card__meta p { color: var(--dark-muted) !important; }
.dark .contest-card__meta p b { color: var(--dark-text); }

.contest-card .dt,
.contestpage-card .dt {
    color: inherit;
    text-decoration: none;
    border-bottom: 1px dotted currentColor;
}

.contest-card .dt:hover,
.contest-card .dt:focus-visible,
.contestpage-card .dt:hover,
.contestpage-card .dt:focus-visible {
    border-bottom-style: solid;
}

.contest-card__links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-2);
    margin-bottom: var(--sp-3);
}

.contest-card__links .btn {
    font-size: var(--fs-875);
    font-weight: 600;
    padding: 0.25rem 0.85rem;
    border-radius: 0;
}

.contest-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-1) var(--sp-2);
    margin-top: var(--sp-2);
}

.contest-card__tools {
    position: absolute;
    top: var(--sp-3);
    right: var(--sp-4);
    display: inline-flex;
    gap: var(--sp-1);
}

.contest-card__tools a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 0;
    transition: background-color 0.15s ease;
}

.contest-card__tools a:hover,
.contest-card__tools a:focus-visible {
    background-color: rgba(116, 31, 34, 0.10);
}

.dark .contest-card__tools a:hover,
.dark .contest-card__tools a:focus-visible {
    background-color: rgba(123, 215, 255, 0.12);
}

.contest-pagination .text-muted {
    font-size: var(--fs-875);
}

.dark .contests-intro,
.dark .contest-pagination .text-muted {
    color: var(--dark-muted);
}

.dark .contest-filter-card {
    border-color: var(--dark-border);
}

.dark .contest-filter-card .form-label {
    color: var(--dark-muted);
}

/* ---------------------------------------------------------------------
   Contest detail page (contest.html)
   --------------------------------------------------------------------- */
.contest-progress {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--sp-2) var(--sp-4);
    padding: var(--sp-3) var(--sp-4);
    margin-bottom: var(--sp-4);
    border: var(--border-thick) solid var(--structure);
    border-left: var(--border-bold) solid var(--brand);
    border-radius: 0;
    background: var(--surface-2);
    font-size: var(--fs-875);
    color: var(--text-strong);
}

/* Square, hard-edged progress track — a flat ink-framed bar. */
.contest-progress__track {
    flex: 0 0 180px;
    height: 12px;
    border: var(--border-thin) solid var(--structure);
    border-radius: 0;
    background: var(--surface);
    overflow: hidden;
}

.contest-progress__fill {
    display: block;
    height: 100%;
    border-radius: 0;
    background: var(--brand);
}

.dark .contest-progress {
    border-color: var(--dark-border);
    background: var(--dark-surface-2);
    color: var(--dark-text);
}

.dark .contest-progress { border-left-color: var(--brand); }
.dark .contest-progress__track { background: var(--dark-surface); border-color: var(--structure); }
.dark .contest-progress__fill { background: var(--dark-link); }

.contest-table-wrap {
    overflow-x: auto;
    border: var(--border-thick) solid var(--structure);
    border-radius: 0;
    box-shadow: var(--shadow-hard);
}

.dark .contest-table-wrap { border-color: var(--dark-border); }

.contest-table-wrap > .table {
    margin: 0;
}

.contest-detail-table thead th {
    font-size: var(--fs-75);
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding-top: var(--sp-3);
    padding-bottom: var(--sp-3);
}

.contest-detail-table tbody td {
    vertical-align: middle;
    padding-top: var(--sp-3);
    padding-bottom: var(--sp-3);
}

.contest-detail-table td a {
    font-weight: 600;
}

/* numeric columns: Value + Users */
.contest-detail-table th:nth-child(4),
.contest-detail-table td:nth-child(4),
.contest-detail-table th:nth-child(5),
.contest-detail-table td:nth-child(5) {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

/* guts requirements toggle */
.contest-req-toggle {
    cursor: pointer;
}

.contest-req-list {
    margin-top: var(--sp-2);
}

.contest-req-list__label {
    margin-right: var(--sp-2);
    font-weight: 700;
    color: var(--brand);
}

.dark .contest-req-list__label { color: #f0a8ad !important; }

.contest-req-list .contest-chip {
    margin: var(--sp-1) var(--sp-2) 0 0;
}

/* AMC paper-style problem frames */
.amc-problem-head {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    margin-bottom: var(--sp-2);
}

.amc-problem-head .amc-problem-title {
    font-size: var(--fs-125);
    font-weight: 700;
    margin: 0;
}

.amc-problem-frame {
    padding: var(--sp-4) var(--sp-4) var(--sp-2);
    border: var(--border-thick) solid var(--structure);
    border-left: var(--border-bold) solid var(--brand);
    border-radius: 0;
    background-color: var(--rose-50);
    margin-bottom: var(--sp-4);
}

.dark .amc-problem-frame {
    background-color: var(--dark-surface-2);
    border-color: var(--dark-border);
}

.amc-answer-row {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    margin-bottom: var(--sp-2);
}

.amc-answer-row > span {
    flex: 0 0 auto;
    font-weight: 600;
}

.amc-answer-row > select {
    flex: 1 1 auto;
}

/* ---------------------------------------------------------------------
   Contest landing page (contestpage.html)
   --------------------------------------------------------------------- */
.contestpage-title {
    font-weight: var(--fw-display);
    letter-spacing: -0.01em;
    margin-bottom: var(--sp-4);
}

.contestpage-actions {
    gap: var(--sp-2);
    flex-wrap: wrap;
}

.contestpage-actions .btn,
.btn-group.contestpage-actions > .btn:not(:first-child),
.btn-group.contestpage-actions > .btn:not(:last-child) {
    border-radius: 0;
    min-height: 48px;
    font-weight: 700;
}

.contestpage-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--sp-2) var(--sp-4);
    margin: var(--sp-4) 0;
    font-size: var(--fs-100);
    color: var(--text-muted);
}

.dark .contestpage-meta { color: var(--dark-muted); }

.contestpage-card.post-card {
    border-radius: 0;
}

/* ---------------------------------------------------------------------
   Scoreboard (scoreboard.html)
   --------------------------------------------------------------------- */
.lb-table-wrap {
    overflow-x: auto;
    border: var(--border-thick) solid var(--structure);
    border-radius: 0;
    box-shadow: var(--shadow-hard);
}

.dark .lb-table-wrap { border-color: var(--dark-border); }

.lb-table {
    margin: 0;
}

.lb-table thead th {
    position: sticky;
    top: 0;
    z-index: 2;
    font-size: var(--fs-75);
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    white-space: nowrap;
    padding-top: var(--sp-3);
    padding-bottom: var(--sp-3);
}

.lb-table tbody td {
    vertical-align: middle;
    padding-top: var(--sp-2);
    padding-bottom: var(--sp-2);
}

.lb-table tbody tr:nth-of-type(even) > * {
    background-color: rgba(15, 23, 42, 0.025);
}

.dark .lb-table tbody tr:nth-of-type(even) > * {
    background-color: rgba(255, 255, 255, 0.03);
}

/* rank + points read as numbers */
.lb-table .lb-num {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.lb-table td:first-child {
    font-variant-numeric: tabular-nums;
}

/* top-3: bold geometric treatment. A heavy maroon ink bar on the leading
   edge and an oversized tabular rank number that reads as a display object.
   Rank 1 gets the boldest bar; 2 and 3 step down through the medal hues. */
.lb-table tbody tr.lb-rank-1 > td:first-child,
.lb-table tbody tr.lb-rank-2 > td:first-child,
.lb-table tbody tr.lb-rank-3 > td:first-child {
    border-left: var(--border-bold) solid transparent;
    font-weight: var(--fw-display);
    font-size: var(--fs-150);
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

.lb-table tbody tr.lb-rank-1 > td:first-child { border-left-color: var(--brand); color: var(--brand); }
.lb-table tbody tr.lb-rank-2 > td:first-child { border-left-color: #6f7682; }
.lb-table tbody tr.lb-rank-3 > td:first-child { border-left-color: var(--rank-bronze); }

.dark .lb-table tbody tr.lb-rank-1 > td:first-child { color: #f0a8ad; }

/* my row: soft brand wash on top of .table-active, plus a leading ink bar */
.lb-table tbody tr#my-rank-row > td {
    background-color: rgba(116, 31, 34, 0.07);
    box-shadow: inset 0 0 0 9999px rgba(116, 31, 34, 0.04);
}

.lb-table tbody tr#my-rank-row > td:first-child {
    box-shadow: inset 4px 0 0 var(--brand), inset 0 0 0 9999px rgba(116, 31, 34, 0.04);
}

.dark .lb-table tbody tr#my-rank-row > td {
    background-color: rgba(123, 215, 255, 0.08) !important;
    box-shadow: none;
}

/* admin action icons: comfortable targets */
.lb-table td a img.icon {
    width: 20px;
    height: 20px;
    padding: var(--sp-1);
    box-sizing: content-box;
    border-radius: 0;
    transition: background-color 0.15s ease;
    cursor: pointer;
}

.lb-table td a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    min-height: 28px;
}

.lb-table td a:hover img.icon,
.lb-table td a:focus-visible img.icon {
    background-color: rgba(116, 31, 34, 0.10);
}

.lb-table td a:hover .scoreboard-dq,
.lb-table td a:focus-visible .scoreboard-dq {
    background-color: rgba(220, 53, 69, 0.14);
}

.dark .lb-table td a:hover img.icon,
.dark .lb-table td a:focus-visible img.icon {
    background-color: rgba(123, 215, 255, 0.12);
}

.lb-empty {
    text-align: center;
    padding: var(--sp-10) var(--sp-4);
    color: var(--text-muted);
}

.dark .lb-empty { color: var(--dark-muted); }

/* ---------------------------------------------------------------------
   Contest problem page (contest_problem.html)
   --------------------------------------------------------------------- */
.cproblem-layout {
    display: flex;
    gap: var(--sp-4);
    flex-wrap: wrap;
    align-items: flex-start;
}

.cproblem-main {
    flex: 3;
    padding: var(--sp-1);
    word-break: break-word;
    min-width: 0;
}

.cproblem-side {
    flex: 1;
    padding: var(--sp-1);
    min-width: 260px;
}

.cproblem-side-panel {
    border: var(--border-thick) solid var(--structure);
    border-radius: 0;
    box-shadow: var(--shadow-hard);
    background: var(--surface);
    padding: var(--sp-4);
}

.cproblem-side-panel .form-control {
    border-radius: 0;
}

.cproblem-side-panel .problem-submit-button {
    min-height: 44px;
    width: 100%;
    font-weight: 600;
}

.cproblem-meta {
    margin-top: var(--sp-3);
    font-size: var(--fs-875);
    line-height: 1.9;
}

.cproblem-meta b {
    font-weight: 600;
}

.cproblem-note {
    margin: var(--sp-3) 0;
    padding: var(--sp-2) var(--sp-3);
    border-left: var(--border-bold) solid var(--brand);
    background: var(--surface-2);
    border-radius: 0;
    font-size: var(--fs-875);
    color: var(--text-strong);
}

.cproblem-note p { margin: 0; }

.dark .cproblem-note {
    background: var(--dark-surface-2);
    border-left-color: var(--dark-link);
    color: var(--dark-text);
}

.cproblem-sublimit {
    color: var(--status-wa);
    font-weight: 600;
}

.dark .cproblem-sublimit { color: #f59aa3 !important; }

#togglehint.btn {
    min-height: 44px;
    font-weight: 600;
}

#hint.card {
    border-radius: 0;
    margin-top: var(--sp-2);
    padding: var(--sp-3) var(--sp-4);
}

.cproblem-nav-btn {
    min-height: 44px;
    font-weight: 600;
    margin-top: var(--sp-2);
}

.dark .cproblem-side-panel {
    border-color: var(--dark-border);
    background-color: var(--dark-surface);
}

@media (max-width: 767px) {
    .cproblem-side {
        min-width: 0;
        width: 100%;
    }
}

/* ---------------------------------------------------------------------
   Grading pages (gradepage.html / grading.html) + preview
   --------------------------------------------------------------------- */
.contest-backlinks {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-2);
    margin-bottom: var(--sp-5);
}

.contest-section-title {
    font-size: var(--fs-150);
    font-weight: var(--fw-display);
    text-transform: uppercase;
    letter-spacing: -0.01em;
    border-top: var(--border-bold) solid var(--structure);
    padding-top: var(--sp-3);
    margin: var(--sp-5) 0 var(--sp-3);
}

.dark .contest-section-title { border-top-color: var(--structure); }

.preview-problem {
    padding: var(--sp-4);
    border: var(--border-thick) solid var(--structure);
    border-left: var(--border-bold) solid var(--brand);
    border-radius: 0;
    background: var(--surface);
    margin-bottom: var(--sp-4);
}

.dark .preview-problem {
    background: var(--dark-surface);
    border-color: var(--dark-border);
}

.grading-panel {
    border: var(--border-thick) solid var(--structure);
    border-radius: 0;
    box-shadow: var(--shadow-hard);
    background: var(--surface);
    padding: var(--sp-4);
}

.dark .grading-panel {
    background: var(--dark-surface);
    border-color: var(--dark-border);
}

/* ---------------------------------------------------------------------
   View submission (viewsub.html)
   --------------------------------------------------------------------- */
.viewsub-head {
    font-weight: var(--fw-display);
    letter-spacing: -0.01em;
    margin-bottom: var(--sp-4);
}

.viewsub-card {
    border: var(--border-thick) solid var(--structure);
    border-left: var(--border-bold) solid var(--brand);
    border-radius: 0;
    box-shadow: var(--shadow-hard);
    background: var(--surface);
    padding: var(--sp-5) var(--sp-6);
    margin-bottom: var(--sp-5);
}

.viewsub-card h2 {
    font-weight: 700;
    font-size: var(--fs-125);
}

.viewsub-score {
    font-size: var(--fs-150);
    font-weight: var(--fw-display);
    color: var(--brand);
    margin-bottom: var(--sp-2);
    font-variant-numeric: tabular-nums;
}

.viewsub-pending {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    color: #664d03;
    background: rgba(255, 193, 7, 0.18);
    border: var(--border-thick) solid rgba(255, 193, 7, 0.55);
    border-radius: 0;
    padding: var(--sp-2) var(--sp-4);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-size: var(--fs-75);
}

.submission-preview {
    border: var(--border-thick) solid var(--structure);
    border-radius: 0;
    overflow: hidden;
    background: var(--surface-2);
}

.submission-preview img,
.submission-preview iframe {
    display: block;
}

.dark .viewsub-card {
    background: var(--dark-surface);
    border-color: var(--dark-border);
}

.dark .viewsub-score { color: #f0a8ad; }

.dark .viewsub-pending {
    color: #f3c969 !important;
    background: rgba(243, 201, 105, 0.14);
    border-color: rgba(243, 201, 105, 0.40);
}

.dark .submission-preview {
    background: var(--dark-surface-2);
    border-color: var(--dark-border);
}

/* ---------------------------------------------------------------------
   Not-found cards (contest_noexist / contest_problem_noexist)
   --------------------------------------------------------------------- */
.notfound-card {
    max-width: 560px;
    margin: var(--sp-12) auto;
    padding: var(--sp-10) var(--sp-8);
    text-align: center;
    border: var(--border-thick) solid var(--structure);
    border-top: var(--border-bold) solid var(--brand);
    border-radius: 0;
    box-shadow: var(--shadow-hard);
}

.notfound-card h1 {
    font-weight: var(--fw-display);
    font-size: var(--fs-400);
    text-transform: uppercase;
    letter-spacing: -0.01em;
    margin-bottom: var(--sp-3);
}

.notfound-card p {
    color: var(--text-muted);
    margin-bottom: var(--sp-5);
}

.notfound-card code {
    background: rgba(116, 31, 34, 0.08);
    color: var(--brand);
    padding: 2px 8px;
    border-radius: 0;
}

.dark .notfound-card { border-color: var(--dark-border); }
.dark .notfound-card p { color: var(--dark-muted); }

.dark .notfound-card code {
    background: var(--dark-surface-2);
    color: var(--dark-link);
}

/* ---------------------------------------------------------------------
   Contest forms (create / edit / problem forms / notify / export)
   --------------------------------------------------------------------- */
.contest-form-page h1 {
    font-weight: var(--fw-display);
    letter-spacing: -0.01em;
    margin-bottom: var(--sp-5);
}

.contest-form-page h4 u {
    text-decoration: none;
}

.contest-form-page h4 {
    font-size: var(--fs-100);
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--text-muted);
    margin-bottom: var(--sp-2);
}

.dark .contest-form-page h4 { color: var(--dark-muted) !important; }

.contest-form-page hr {
    margin: var(--sp-6) 0;
}

.contest-danger-note {
    color: var(--status-wa);
    font-weight: 600;
}

.dark .contest-danger-note { color: #f59aa3 !important; }

/* ---------------------------------------------------------------------
   Motion: respect reduced-motion. The final-minute timer pulse stays
   (functional urgency), everything decorative stops.
   --------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    .contest-card.post-card,
    .contest-card__tools a,
    .contest-chip,
    .lb-table td a img.icon,
    .contest-detail-table tbody tr {
        transition: none !important;
    }
    /* Kill the hover lift; the hard shadow stays as the static frame. */
    .contest-card.post-card:hover {
        transform: none;
        box-shadow: var(--shadow-hard);
    }
}