:root {
  --bg: #ffffff;
  --ink: #101828;
  --muted: #475467;
  --line: #d0d5dd;
  --brand: #0b4f9c;
  --brand-soft: #eaf2fb;
  --ok: #067647;
  --warn: #b54708;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, Arial, sans-serif;
  line-height: 1.5;
}

.wrap {
  width: min(1160px, 92vw);
  margin: 0 auto;
}

.topbar {
  border-bottom: 1px solid var(--line);
  background: #fff;
  padding: 24px 0;
}

.row-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

h1, h2, h3, h4 {
  margin: 0 0 10px;
}

.sub {
  color: var(--muted);
  margin: 0;
}

.badge {
  border: 1px solid var(--line);
  background: var(--brand-soft);
  color: var(--brand);
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 600;
}

.panel {
  border: 1px solid var(--line);
  padding: 18px;
  margin: 20px 0;
}

.grid {
  display: grid;
  gap: 12px;
}

.grid-5 {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.card {
  border: 1px solid var(--line);
  padding: 12px;
  min-height: 120px;
}

.card p {
  margin: 4px 0;
  font-weight: 700;
}

.card small {
  color: var(--muted);
}

.done p {
  color: var(--ok);
}

.todo p {
  color: var(--warn);
}

.muted {
  color: var(--muted);
}

.org {
  display: grid;
  gap: 14px;
}

.node {
  border: 1px solid var(--line);
  padding: 12px;
}

.supervisor {
  border-color: var(--brand);
  background: var(--brand-soft);
}

.children {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.node ul {
  margin: 8px 0 0;
  padding-left: 18px;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.tab {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  padding: 8px 10px;
  font-size: 13px;
  cursor: pointer;
}

.tab.active {
  border-color: var(--brand);
  color: var(--brand);
  font-weight: 700;
}

.track {
  display: none;
  border: 1px solid var(--line);
  padding: 12px;
}

.track.active {
  display: block;
}

.track ol {
  margin: 0;
  padding-left: 18px;
}

.template {
  display: grid;
  gap: 10px;
}

pre {
  margin: 0;
  border: 1px solid var(--line);
  background: #fcfcfd;
  padding: 12px;
  overflow-x: auto;
  white-space: pre-wrap;
}

.btn {
  border: 1px solid var(--brand);
  background: #fff;
  color: var(--brand);
  padding: 8px 12px;
  font-weight: 600;
  cursor: pointer;
  width: fit-content;
}

.btn:hover {
  background: var(--brand-soft);
}

.footer {
  margin: 30px auto 40px;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 1080px) {
  .grid-5 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.topnav {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.link-chip {
  border: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
  font-size: 12px;
  padding: 6px 9px;
}

.link-chip.active {
  border-color: var(--brand);
  color: var(--brand);
  font-weight: 700;
}

.table-wrap {
  overflow-x: auto;
}

.score-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 980px;
}

.score-table th,
.score-table td {
  border: 1px solid var(--line);
  padding: 8px;
  text-align: left;
  vertical-align: top;
}

.score-table th {
  background: #f9fafb;
  font-size: 12px;
}

.score-table select,
.score-table textarea {
  width: 100%;
  border: 1px solid var(--line);
  padding: 6px;
  font: inherit;
  font-size: 13px;
}

.score-table textarea {
  min-width: 180px;
  resize: vertical;
}

.score {
  font-weight: 700;
}

.actions {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.ranking {
  margin: 0;
  padding-left: 18px;
}

.ranking li {
  margin: 6px 0;
}

@media (max-width: 760px) {
  .row-between {
    flex-direction: column;
    align-items: flex-start;
  }

  .children {
    grid-template-columns: 1fr;
  }
}