:root {
  --bg: #0f172a;
  --bg-soft: #1e293b;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --good: #16a34a;
  --warn: #d97706;
  --bad: #dc2626;
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.08), 0 4px 12px rgba(15, 23, 42, 0.04);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: #f1f5f9;
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--bg);
  color: #fff;
  box-shadow: var(--shadow);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  letter-spacing: 0.2px;
}

.brand .logo {
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.user-area {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
}

.user-area button {
  background: transparent;
  color: #fff;
  border: 1px solid #475569;
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
}
.user-area button:hover { background: #1e293b; }

.user-area .role-pill {
  font-size: 11px;
  background: var(--primary);
  padding: 2px 8px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

main {
  max-width: 1080px;
  margin: 24px auto;
  padding: 0 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  box-shadow: var(--shadow);
}

h1 { margin: 0 0 8px; font-size: 24px; }
h2 { margin: 24px 0 12px; font-size: 18px; }
h3 { margin: 0 0 8px; font-size: 15px; }

.muted { color: var(--muted); font-size: 14px; margin: 0 0 12px; }

button {
  font: inherit;
  padding: 8px 14px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: #fff;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
button:hover { background: #f8fafc; }
button.primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
button.primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }
button:disabled { opacity: 0.5; cursor: not-allowed; }

.actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.error { color: var(--bad); font-size: 14px; margin-top: 8px; }
.success { color: var(--good); font-size: 14px; margin-top: 8px; }

/* ─── Login ─── */
.login { max-width: 420px; margin: 40px auto; }
.login form { display: flex; flex-direction: column; gap: 12px; margin-top: 12px; }
.login label, .add-tech label {
  display: flex;
  flex-direction: column;
  font-size: 13px;
  color: var(--muted);
  gap: 4px;
}
.login input, .add-tech input {
  padding: 9px 12px;
  border-radius: 6px;
  border: 1px solid var(--border);
  font: inherit;
  color: var(--text);
}
.login input:focus, .add-tech input:focus {
  outline: 2px solid var(--primary);
  outline-offset: 1px;
}

.hint { margin-top: 18px; font-size: 13px; }
.hint summary { cursor: pointer; color: var(--muted); }
.hint ul { margin: 8px 0 4px 18px; padding: 0; }
.hint code { background: #f1f5f9; padding: 1px 6px; border-radius: 4px; font-size: 12px; }

/* ─── Assessment ─── */
.assessment-header { display: flex; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; gap: 16px; margin-bottom: 18px; }
.progress { min-width: 240px; font-size: 13px; color: var(--muted); }
.progress-bar { height: 6px; background: #e2e8f0; border-radius: 999px; margin-top: 6px; overflow: hidden; }
.progress-bar div { height: 100%; background: var(--primary); width: 0%; transition: width 0.25s; }

.q-domain { font-size: 12px; color: var(--primary); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.q-topic { font-size: 12px; color: var(--muted); margin-top: 2px; }
.q-text { font-size: 17px; margin: 12px 0 16px; white-space: pre-wrap; }

.options { display: flex; flex-direction: column; gap: 8px; }
.options label {
  display: flex;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  white-space: pre-wrap;
}
.options label:hover { background: #f8fafc; }
.options input { margin-top: 3px; accent-color: var(--primary); }
.options input:checked + span { font-weight: 500; }
.options label:has(input:checked) { border-color: var(--primary); background: #eff6ff; }

.assessment-nav { display: flex; align-items: center; margin-top: 24px; }
.spacer { flex: 1; }

/* ─── Report ─── */
.overall {
  display: grid;
  grid-template-columns: minmax(180px, 240px) 1fr;
  gap: 24px;
  align-items: start;
  margin-top: 16px;
}
.overall-score {
  text-align: center;
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
}
.big-num { font-size: 56px; font-weight: 700; color: var(--primary); line-height: 1; }
.study-order ol { padding-left: 20px; margin: 0; }
.study-order li { margin: 4px 0; }
.study-order .pct { color: var(--muted); font-size: 13px; margin-left: 6px; }

.domain-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}
.domain-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  background: #fff;
}
.domain-card h3 { font-size: 14px; margin: 0 0 6px; }
.domain-card .score-row {
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; color: var(--muted);
}
.domain-card .pct-num { font-size: 22px; font-weight: 700; color: var(--text); }
.domain-card .meter { flex: 1; height: 6px; background: #e2e8f0; border-radius: 999px; overflow: hidden; }
.domain-card .meter div { height: 100%; }

.domain-card.good   .meter div { background: var(--good); }
.domain-card.warn   .meter div { background: var(--warn); }
.domain-card.bad    .meter div { background: var(--bad); }
.domain-card.good   .pct-num   { color: var(--good); }
.domain-card.warn   .pct-num   { color: var(--warn); }
.domain-card.bad    .pct-num   { color: var(--bad); }

.weak-topics, .resources { margin-top: 10px; font-size: 13px; }
.weak-topics strong, .resources strong { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
.weak-topics ul, .resources ul { margin: 4px 0 0 18px; padding: 0; }
.resources a { color: var(--primary); text-decoration: none; }
.resources a:hover { text-decoration: underline; }

/* ─── Admin ─── */
.team-table { width: 100%; border-collapse: collapse; margin-top: 8px; }
.team-table th, .team-table td {
  text-align: left; padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.team-table th { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.5px; font-weight: 600; }
.team-table tr.no-result td { color: var(--muted); font-style: italic; }
.team-table .pill {
  display: inline-block; padding: 2px 8px; border-radius: 999px;
  font-size: 12px; font-weight: 600;
}
.team-table .pill.good { background: #dcfce7; color: #166534; }
.team-table .pill.warn { background: #fef3c7; color: #92400e; }
.team-table .pill.bad  { background: #fee2e2; color: #991b1b; }

.add-tech { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; align-items: end; }
.add-tech button { height: 38px; }

.change-password-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; align-items: end; }
.change-password-form label { display: flex; flex-direction: column; font-size: 13px; color: var(--muted); gap: 4px; }
.change-password-form input { padding: 9px 12px; border-radius: 6px; border: 1px solid var(--border); font: inherit; color: var(--text); }
.change-password-form input:focus { outline: 2px solid var(--primary); outline-offset: 1px; }
.change-password-form button { height: 38px; }
.change-password-form .change-pw-error,
.change-password-form .change-pw-success { grid-column: 1 / -1; margin: 0; }

.link-btn {
  background: none; border: none; color: var(--primary); cursor: pointer; padding: 0; margin-bottom: 12px;
}
.link-btn:hover { background: none; text-decoration: underline; }

.heatmap { display: grid; gap: 6px; margin: 12px 0; }
.heatmap-row { display: grid; grid-template-columns: 220px 1fr 56px; align-items: center; gap: 12px; font-size: 13px; }
.heatmap-row .name { color: var(--muted); }
.heatmap-row .bar { height: 14px; background: #e2e8f0; border-radius: 4px; overflow: hidden; }
.heatmap-row .bar div { height: 100%; }
.heatmap-row .pct { text-align: right; font-variant-numeric: tabular-nums; font-weight: 600; }

@media print {
  .topbar, .actions, .add-tech, button { display: none !important; }
  body { background: #fff; }
  .card { box-shadow: none; border: none; padding: 0; margin-bottom: 12px; page-break-inside: avoid; }
  main { max-width: none; margin: 0; padding: 0; }
}