:root {
  --bg: #f6f8fb;
  --card: #ffffff;
  --ink: #162033;
  --muted: #687489;
  --line: #d9e1ee;
  --primary: #1f7aec;
  --primary-dark: #155bb4;
  --soft: #eef5ff;
  --ok: #168a4f;
  --warn: #b7791f;
  --danger: #c53030;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); }
button, input, select, textarea { font: inherit; }
.app-shell { min-height: 100vh; }
.topbar { position: sticky; top: 0; z-index: 5; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 14px 18px; background: rgba(255,255,255,.94); border-bottom: 1px solid var(--line); backdrop-filter: blur(8px); }
.brand { font-weight: 800; font-size: 18px; }
.topbar-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
main { max-width: 1220px; margin: 0 auto; padding: 18px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 18px; box-shadow: 0 12px 30px rgba(25,40,72,.06); margin-bottom: 16px; }
.login-card { max-width: 460px; margin: 9vh auto; }
h1, h2, h3 { margin: 0 0 12px; line-height: 1.2; }
p { line-height: 1.55; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.hidden { display: none !important; }
.grid { display: grid; gap: 12px; }
.grid.two { grid-template-columns: repeat(2, minmax(0,1fr)); }
.grid.three { grid-template-columns: repeat(3, minmax(0,1fr)); }
.grid.four { grid-template-columns: repeat(4, minmax(0,1fr)); }
label { display: grid; gap: 6px; font-weight: 650; color: #24324a; }
input, select, textarea { width: 100%; border: 1px solid var(--line); border-radius: 12px; padding: 11px 12px; background: #fff; color: var(--ink); }
textarea { min-height: 90px; resize: vertical; }
.btn { border: 1px solid transparent; border-radius: 12px; padding: 10px 14px; background: #eef2f8; color: var(--ink); font-weight: 750; cursor: pointer; }
.btn:hover { filter: brightness(.98); }
.btn.primary { background: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-dark); }
.btn.ghost { background: #fff; border-color: var(--line); }
.btn.danger { background: #fee2e2; color: var(--danger); }
.btn.success { background: #dcfce7; color: var(--ok); }
.btn.full { width: 100%; }
.status { min-height: 22px; margin-top: 10px; color: var(--ok); font-weight: 650; }
.status.warn, .status.error { color: var(--danger); }
.pill { display: inline-flex; align-items: center; gap: 6px; border-radius: 999px; padding: 6px 10px; background: #edf2f7; color: #31405a; font-size: 12px; font-weight: 800; }
.pill.ok { background: #e3f7ec; color: var(--ok); }
.pill.warn { background: #fff4dd; color: var(--warn); }
.workspace { display: grid; grid-template-columns: 250px minmax(0,1fr); gap: 16px; }
.module-nav { display: grid; align-content: start; gap: 8px; position: sticky; top: 82px; }
.module-nav button { text-align: left; border: 1px solid var(--line); border-radius: 14px; padding: 12px; background: #fff; cursor: pointer; font-weight: 750; }
.module-nav button.active { background: var(--soft); border-color: #9bc4ff; color: var(--primary-dark); }
.module-host { min-width: 0; }
.table-wrap { overflow: auto; border: 1px solid var(--line); border-radius: 14px; }
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { border-bottom: 1px solid var(--line); padding: 10px; text-align: left; vertical-align: top; }
th { background: #f8fafc; font-size: 13px; color: #34435c; }
tr:last-child td { border-bottom: 0; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.scope-bar { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: 10px; margin-bottom: 14px; }
.student-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px,1fr)); gap: 10px; }
.student-card { border: 1px solid var(--line); border-radius: 16px; padding: 12px; background: #fff; cursor: pointer; }
.student-card.active { outline: 3px solid #b9d8ff; }
.la-card { border: 1px solid var(--line); border-radius: 16px; padding: 14px; margin-bottom: 12px; background: #fff; }
.la-title { font-weight: 800; margin-bottom: 8px; }
.rubric-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 8px; margin: 10px 0; }
.rubric-grid button { border: 1px solid var(--line); border-radius: 12px; background: #fff; padding: 10px 8px; cursor: pointer; font-weight: 800; }
.rubric-grid button.active { background: #dbeafe; border-color: #60a5fa; }
.indicator-table input[type="checkbox"] { width: auto; }
.modal-root { position: fixed; inset: 0; z-index: 20; display: grid; place-items: center; background: rgba(10,20,36,.45); padding: 20px; }
.modal { width: min(760px, 100%); max-height: 88vh; overflow: auto; background: #fff; border-radius: 20px; padding: 18px; box-shadow: 0 24px 70px rgba(0,0,0,.25); }
.result-page { max-width: 980px; }
.result-output .subject-result { border: 1px solid var(--line); border-radius: 14px; padding: 12px; margin-top: 12px; }
@media (max-width: 850px) {
  main { padding: 12px; }
  .workspace { grid-template-columns: 1fr; }
  .module-nav { position: static; grid-template-columns: repeat(2, minmax(0,1fr)); }
  .grid.two, .grid.three, .grid.four, .scope-bar { grid-template-columns: 1fr; }
  .topbar { align-items: flex-start; flex-direction: column; }
  .rubric-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media print {
  .topbar, .module-nav, .actions, button { display: none !important; }
  body { background: #fff; }
  main { max-width: none; padding: 0; }
  .card { box-shadow: none; border: 0; }
}
.page-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.actions.right { justify-content: flex-end; }
.actions.split { justify-content: space-between; align-items: center; }
code { background: #eef2f8; border-radius: 6px; padding: 1px 5px; }
@media (max-width: 700px) {
  .page-header, .actions.split { flex-direction: column; align-items: stretch; }
}
.screen-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin: 0 0 16px; }
.screen-tabs button { border: 1px solid var(--line); border-radius: 999px; padding: 10px 14px; background: #fff; cursor: pointer; font-weight: 800; }
.screen-tabs button.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.empty-state { border: 1px dashed var(--line); border-radius: 16px; padding: 18px; background: #fbfdff; }
.help-text { color: var(--muted); font-size: 12px; font-weight: 500; margin-top: -2px; }
.required::after { content: ' *'; color: var(--danger); }
.btn:disabled { opacity: .55; cursor: not-allowed; filter: grayscale(.1); }
.form-note { background: #f8fafc; border: 1px solid var(--line); border-radius: 14px; padding: 10px 12px; margin: 10px 0; color: var(--muted); }
.step-card { border: 1px solid var(--line); border-radius: 16px; padding: 12px; background: #fff; }