:root {
  --navy: #1e3a5f;
  --navy-light: #2c5282;
  --sand: #f6f6f0;
  --border: #d1d5db;
  --text: #1a1a1a;
  --muted: #5c5c5c;
  --ok: #1a6b3c;
  --err: #9b1c1c;
  --warn: #92600a;
}

* { box-sizing: border-box; }

body {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  margin: 0;
  color: var(--text);
  background: #fafafa;
  line-height: 1.5;
}

a { color: var(--navy-light); }

.container {
  max-width: 920px;
  margin: 0 auto;
  padding: 1.5rem;
}

header.site {
  background: var(--navy);
  color: #fff;
  padding: 1rem 1.5rem;
}

header.site h1 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 600;
}

header.site p {
  margin: 0.25rem 0 0;
  font-size: 0.9rem;
  opacity: 0.85;
}

.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
}

.card h2 {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
}

.instructions {
  background: var(--sand);
  border-left: 4px solid var(--navy-light);
  padding: 1rem 1.25rem;
  margin: 1rem 0;
  font-size: 0.95rem;
}

.instructions p { margin: 0.5rem 0; }

.alert {
  padding: 0.75rem 1rem;
  border-radius: 6px;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.alert-error { background: #fde8e8; color: var(--err); border: 1px solid #f5c2c2; }
.alert-success { background: #e6f4ea; color: var(--ok); border: 1px solid #b7dfc4; }
.alert-info { background: #eef4fb; color: var(--navy); border: 1px solid #c5d9f0; }
.alert-warn { background: #fef7e6; color: var(--warn); border: 1px solid #f0d89a; }

label {
  display: block;
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 0.35rem;
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="datetime-local"],
input[type="date"],
textarea,
select {
  width: 100%;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font: inherit;
  margin-bottom: 0.75rem;
}

textarea { min-height: 5rem; resize: vertical; }

.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  border: none;
  font: inherit;
  cursor: pointer;
  text-decoration: none;
  font-size: 0.9rem;
}

.btn-primary { background: var(--navy-light); color: #fff; }
.btn-primary:hover { background: var(--navy); }
.btn-secondary { background: #e5e7eb; color: var(--text); }
.btn-danger { background: #b91c1c; color: #fff; }
.btn-sm { padding: 0.35rem 0.65rem; font-size: 0.8rem; }

.actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.75rem; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th, td {
  border: 1px solid var(--border);
  padding: 0.5rem 0.65rem;
  text-align: left;
}

th { background: #f3f4f6; font-weight: 600; }

.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-open { background: #dcfce7; color: #166534; }
.badge-closed { background: #fee2e2; color: #991b1b; }
.badge-assigned { background: #dbeafe; color: #1e40af; }

.muted { color: var(--muted); font-size: 0.85rem; }

.link-box {
  font-family: ui-monospace, monospace;
  font-size: 0.8rem;
  background: #f3f4f6;
  padding: 0.5rem;
  border-radius: 4px;
  word-break: break-all;
}

.rank-row {
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 0.75rem;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid #eee;
}

.rank-row:last-child { border-bottom: none; }

.rank-row input[type="number"] {
  width: 4rem;
  text-align: center;
  margin: 0;
}

.rank-row.duplicate input { border-color: var(--err); background: #fde8e8; }
.rank-row.missing input { border-color: var(--warn); background: #fef7e6; }

.validation-msg {
  font-size: 0.85rem;
  margin: 0.5rem 0 1rem;
  min-height: 1.25rem;
}

.validation-msg.ok { color: var(--ok); }
.validation-msg.bad { color: var(--err); }

footer.site {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--muted);
  font-size: 0.8rem;
}

.inline-form { display: inline; }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 640px) {
  .grid-2 { grid-template-columns: 1fr; }
}