/* Kattis-inspired theme.
   Palette + fonts taken from open.kattis.com:
   brand gold #ffbe00, success #39a137, error #ff411a, partial pales,
   body font Ubuntu, headings Merriweather, 7px gold branding bar. */

:root {
    --kattis-gold:        #ffbe00;
    --kattis-green:       #39a137;
    --kattis-green-hover: #59b057;
    --link:               #355591;
    --text:               #1c1c1c;
    --muted:              #666;
    --border:             #e3e3ea;
    --panel:              #ffffff;
    --header-bg:          #2b2b32;
    --bg-start:           #f1f2fc;
    --bg-end:             #f7f7f7;
    --success-pale:       #d6f3d2;
    --error-pale:         #ffd0cc;
    --warning-pale:       #ffe699;
    --radius:             8px;
}

*, *::before, *::after {
    box-sizing: border-box;
}

html, body {
    max-width: 100%;
    overflow-x: hidden;
}

body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    border-top: 7px solid var(--kattis-gold);
    background-image: linear-gradient(143deg, var(--bg-start) 22%, var(--bg-end) 75%);
    background-attachment: fixed;
    font-family: "Ubuntu", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: var(--text);
}

h1, h2, h3 {
    font-family: "Merriweather", Georgia, "Times New Roman", serif;
    color: #222;
    font-weight: 700;
    line-height: 1.25;
}

h1 { font-size: 2rem; margin: 0 0 16px; }
h2 { font-size: 1.4rem; }
h3 { font-size: 1.1rem; }

p { margin: 0 0 12px; }

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Navbar ─────────────────────────────────────────── */
.navbar {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 2px;
    background-color: var(--header-bg);
    padding: 0 16px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
}

.navbar a {
    color: #fff;
    text-decoration: none;
    padding: 16px 16px;
    font-weight: 500;
    border-bottom: 3px solid transparent;
    transition: color .15s, border-color .15s;
}

.navbar a:hover {
    color: var(--kattis-gold);
    text-decoration: none;
    border-bottom-color: var(--kattis-gold);
}

.navbar img {
    height: 40px;
    width: 40px;
    margin-right: 10px;
}

/* ── Main content panel ─────────────────────────────── */
main {
    display: block;
    max-width: 1200px;
    margin: 24px auto;
    padding: 24px 28px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

/* ── Queue layout: each section stacked full-width ──── */
.queue-layout {
    display: flex;
    flex-direction: column;
    gap: 28px;
    margin-top: 16px;
}

.queue-section { min-width: 0; }

/* Waiting + recent sit side by side; they wrap to stack on narrow screens. */
.queue-row {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 28px;
    align-items: flex-start;
}

.queue-row .queue-section {
    flex: 1 1 360px;
    overflow-x: auto;
}

/* Leaderboard is a narrow list — keep it from stretching across the panel. */
.leaderboard-section #leaderboard {
    max-width: 480px;
}

/* ── Tables ─────────────────────────────────────────── */
table {
    border-collapse: collapse;
    font-family: "Ubuntu", sans-serif;
    font-size: 14px;
    width: 100%;
    margin: 12px 0 20px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

table td, table th {
    text-align: left;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
}

/* Submission tables: let long problem slugs / usernames wrap rather than
   forcing the table wider than the page. */
.submission-table td, .submission-table th {
    overflow-wrap: anywhere;
}

.submission-table .col-time {
    white-space: nowrap;
}

table th {
    background-color: #f3f3f9;
    font-weight: 700;
    color: #333;
    border-bottom: 2px solid #e0e0e8;
}

table tbody tr:nth-child(even) { background-color: #fafafb; }
table tbody tr:hover { background-color: #fff7e0; }
table tbody tr:last-child td { border-bottom: none; }

/* ── Verdict rows (classes set in queue.js) ─────────── */
.verdict-success td { background-color: var(--success-pale); }
.verdict-failure td { background-color: var(--error-pale); }
.verdict-partial td { background-color: var(--warning-pale); }
.verdict-success:hover td { background-color: #c4ecbe; }
.verdict-failure:hover td { background-color: #ffbdb6; }
.verdict-partial:hover td { background-color: #ffdb73; }

/* ── Buttons ────────────────────────────────────────── */
button, .button, input[type="submit"] {
    font-family: "Ubuntu", sans-serif;
    display: inline-block;
    cursor: pointer;
    background-color: var(--kattis-green);
    color: #fff;
    border: none;
    border-radius: 20.5px;
    padding: 10px 28px;
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.33;
    transition: background-color .15s;
}

button:hover, .button:hover, input[type="submit"]:hover {
    background-color: var(--kattis-green-hover);
}

button:disabled { opacity: .5; cursor: default; }

/* ── Form fields ────────────────────────────────────── */
label { font-weight: 500; }

input[type="text"], input[type="file"], select, textarea, .form-control {
    font-family: "Ubuntu", sans-serif;
    font-size: 1rem;
    padding: 8px 10px;
    border: 1px solid #cacaca;
    border-radius: 6px;
    background: #fff;
    color: var(--text);
}

input[type="text"]:focus, select:focus, textarea:focus, .form-control:focus {
    outline: none;
    border-color: var(--kattis-green);
    box-shadow: 0 0 0 3px rgba(57, 161, 55, 0.15);
}

textarea {
    font-family: "Ubuntu Mono", ui-monospace, monospace;
}

.submission-form { max-width: 760px; }

/* ── Login form ─────────────────────────────────────── */
form[action="/login"] {
    display: flex;
    gap: 10px;
    max-width: 420px;
    margin-top: 16px;
}

form[action="/login"] .form-control { flex: 1; }

/* ── Home page ──────────────────────────────────────── */
.home-links {
    list-style: none;
    padding: 0;
    margin: 12px 0 0;
}

.home-links li { margin: 8px 0; }

.home-links a {
    display: inline-block;
    padding: 8px 16px;
    background: #f3f3f9;
    border: 1px solid var(--border);
    border-radius: 6px;
}

.home-links a:hover {
    background: #fff7e0;
    border-color: var(--kattis-gold);
    text-decoration: none;
}

/* ── Drag & drop upload ─────────────────────────────── */
.dropzone {
    border: 2px dashed #cacaca;
    border-radius: var(--radius);
    padding: 22px;
    text-align: center;
    color: var(--muted);
    background-color: #fafafb;
    transition: border-color .15s, background-color .15s;
}

.dropzone.dragover {
    border-color: var(--kattis-green);
    background-color: #eef9ee;
}

.file-list {
    margin-top: 8px;
    font-size: 0.9rem;
    color: #333;
    word-break: break-all;
}

/* ── Leaderboard ────────────────────────────────────── */
#leaderboard {
    list-style: none;
    padding: 0;
    margin: 12px 0;
    min-width: 220px;
    counter-reset: rank;
}

#leaderboard li {
    counter-increment: rank;
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding: 10px 14px;
    background: #fff;
    border: 1px solid var(--border);
    border-left: 4px solid var(--border);
    border-radius: 6px;
    margin-bottom: 6px;
    font-weight: 500;
}

#leaderboard .lb-score {
    margin-left: auto;
    font-variant-numeric: tabular-nums;
    font-weight: 700;
}

#leaderboard li::before {
    content: "#" counter(rank) "  ";
    color: var(--muted);
    font-weight: 700;
}

#leaderboard li:nth-child(1) { border-left-color: #ffd700; }  /* gold   */
#leaderboard li:nth-child(2) { border-left-color: #c0c0c0; }  /* silver */
#leaderboard li:nth-child(3) { border-left-color: #cd7f32; }  /* bronze */

/* ── Refresh counter / banner ───────────────────────── */
#refresh-counter {
    font-family: "Ubuntu", sans-serif;
    font-size: 1rem;
    font-weight: 500;
    color: #333;
    background: #fff7e0;
    border: 1px solid var(--kattis-gold);
    border-radius: 20px;
    padding: 8px 16px;
    display: inline-block;
}

/* ── "Lock in" cat (fixed bottom-right of the queue page) ── */
.lock-in-gif {
    position: fixed;
    right: 16px;
    bottom: 16px;
    width: 160px;
    height: auto;
    z-index: 100;
    border-radius: var(--radius);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
    pointer-events: none;
}

.lock-in-seal {
    right: 192px;
}

.lock-in-3 {
    right: 368px;
}

.lock-in-winston {
    right: 544px;
}

.lock-in-pufferfish {
    right: 720px;
}

.lock-in-standing-cat {
    right: 896px;
}

.lock-in-flying-cat {
    right: 1072px;
}

/* Second row, stacked above the first (the bottom row was getting too wide). */
.lock-in-cat-tongue {
    right: 16px;
    bottom: 208px;
}

.lock-in-happy-cat {
    right: 192px;
    bottom: 208px;
}

/* ── Flash messages ─────────────────────────────────── */
.flashes {
    list-style: none;
    padding: 0;
    margin: 16px 0 0;
}

.flashes li {
    padding: 10px 14px;
    border-radius: 6px;
    margin-bottom: 8px;
    background: var(--warning-pale);
    border: 1px solid var(--kattis-gold);
}