:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #f0f2f5;
  --text: #1b1f24;
  --muted: #5f6b7a;
  --border: #dde2e8;
  --accent: #0f766e;
  --accent-soft: #e0f2ef;
  --gold: #b7791f;
  --em: #7c3aed;
  --em-soft: #efe7ff;
  --hl: #fff6d6;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1216;
    --surface: #171b21;
    --surface-2: #1f242c;
    --text: #e6e9ee;
    --muted: #97a1ad;
    --border: #2a313a;
    --accent: #2dd4bf;
    --accent-soft: #123a36;
    --gold: #f2c060;
    --em: #b69cff;
    --em-soft: #2b2244;
    --hl: #3a3317;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 "Hind Siliguri", system-ui, -apple-system, "Segoe UI", sans-serif;
}
.wrap { max-width: 1200px; margin: 0 auto; padding: 24px 16px 48px; }

header h1 { margin: 0 0 4px; font-size: 24px; }
header p { margin: 0; color: var(--muted); }

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin: 20px 0;
}
.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
}
.stat .label { color: var(--muted); font-size: 12px; }
.stat .value { font-size: 22px; font-weight: 600; font-variant-numeric: tabular-nums; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 16px; }
.tabs button {
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  padding: 8px 14px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.tabs button.active { color: var(--accent); border-bottom-color: var(--accent); }

.controls { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 12px; align-items: center; }
.controls input, .controls select {
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 10px;
  min-width: 0;
}
.controls input[type="search"] { flex: 1 1 220px; }
.controls select { flex: 0 1 auto; max-width: 100%; }
.count { color: var(--muted); margin-left: auto; font-size: 13px; }

.table-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow-x: auto;
}
table { width: 100%; border-collapse: collapse; }
th, td { padding: 8px 12px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
td.college { white-space: normal; min-width: 240px; }
th {
  position: sticky;
  top: 0;
  background: var(--surface-2);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .03em;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
}
th.sorted { color: var(--accent); }
th .arrow { font-size: 10px; margin-left: 4px; }
tbody tr:hover { background: var(--surface-2); }
tbody tr.hl { background: var(--hl); }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.pos { font-weight: 700; }
.pos.top { color: var(--gold); }
.tie { color: var(--muted); font-weight: 400; font-size: 11px; margin-left: 2px; }
.badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 1px 7px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
}
.badge.em { background: var(--em-soft); color: var(--em); }
.link { color: var(--accent); cursor: pointer; text-decoration: underline; text-underline-offset: 2px; }

.pager { display: flex; gap: 8px; justify-content: center; align-items: center; margin-top: 14px; }
.pager button {
  font: inherit;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 12px;
  cursor: pointer;
}
.pager button:disabled { opacity: .4; cursor: default; }

.note { color: var(--muted); font-size: 12px; margin-top: 16px; }

/* ---- Phones: merit rows become cards, summary table drops minor columns ---- */
@media (max-width: 640px) {
  .wrap { padding: 16px 16px 32px; }
  header h1 { font-size: 20px; }
  header p { font-size: 13px; }

  .stats { grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 14px 0; }
  .stat { padding: 8px 10px; border-radius: 8px; }
  .stat .label { font-size: 11px; line-height: 1.3; }
  .stat .value { font-size: 17px; }

  .tabs { overflow-x: auto; }
  .tabs button { padding: 8px 10px; white-space: nowrap; }

  .controls { gap: 8px; }
  .controls input[type="search"], #college { flex: 1 1 100%; }
  #criterion, #sort { flex: 1 1 0; }
  .count { flex: 1 1 100%; text-align: right; margin-left: 0; }

  #tab-merit .table-wrap { background: none; border: 0; overflow: visible; }
  #tab-merit table, #tab-merit tbody { display: block; }
  #tab-merit thead { display: none; }
  #tab-merit tbody tr {
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    grid-template-areas:
      "pos name name marks"
      "pos roll quota marks"
      "college college college cpos";
    column-gap: 12px;
    row-gap: 2px;
    align-items: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 10px 12px;
    margin-bottom: 8px;
  }
  #tab-merit tbody tr:hover { background: var(--surface); }
  #tab-merit tbody tr.hl { background: var(--hl); }
  #tab-merit td { border: 0; padding: 0; white-space: normal; }
  #tab-merit .c-pos {
    grid-area: pos;
    min-width: 48px;
    text-align: center;
    font-size: 18px;
    align-self: stretch;
    display: flex;
    flex-direction: column;
    justify-content: center;
    border-right: 1px solid var(--border);
    padding-right: 10px;
  }
  #tab-merit .c-pos::before { content: "Pos."; font-size: 10px; font-weight: 600; color: var(--muted); }
  #tab-merit .c-name { grid-area: name; font-weight: 600; }
  #tab-merit .c-marks { grid-area: marks; font-size: 20px; font-weight: 700; text-align: right; }
  #tab-merit .c-marks::after { content: "নম্বর"; display: block; font-size: 10px; font-weight: 400; color: var(--muted); }
  #tab-merit .c-roll { grid-area: roll; font-size: 12px; color: var(--muted); }
  #tab-merit .c-roll::before { content: "Roll "; }
  #tab-merit .c-quota { grid-area: quota; justify-self: end; }
  #tab-merit .c-college, #tab-merit .c-cpos {
    margin-top: 6px;
    padding-top: 6px;
    border-top: 1px dashed var(--border);
    align-self: stretch;
    font-size: 12.5px;
  }
  #tab-merit .c-college { grid-area: college; min-width: 0; }
  #tab-merit .c-cpos { grid-area: cpos; color: var(--muted); white-space: nowrap; text-align: right; }
  #tab-merit .c-cpos::before { content: "কলেজে "; }

  #tab-colleges th, #tab-colleges td { padding: 8px; }
  #tab-colleges .c-code, #tab-colleges .c-avg { display: none; }
  #tab-colleges td.college { min-width: 0; font-size: 13px; }
  #tab-colleges th { font-size: 11px; letter-spacing: 0; }
}
.empty { padding: 40px; text-align: center; color: var(--muted); }
[hidden] { display: none !important; }