:root {
  --paper: #EEF1F0;
  --sheet: #FFFFFF;
  --ink: #1B2330;
  --ink-2: #4E5866;
  --rule: #D2D8D6;
  --pen: #2447A0;
  --pen-soft: #E6ECF9;
  --ok: #2E6A4F;
  --warn: #8F6512;
  --bad: #A23A2E;
  --serif: "Literata", Georgia, serif;
  --sans: "Public Sans", system-ui, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #12171D; --sheet: #1A2129; --ink: #E4E8EE; --ink-2: #A3ADBA; --rule: #313A45;
    --pen: #93ADF2; --pen-soft: #233150; --ok: #7CC3A0; --warn: #D8B25E; --bad: #EE8C7F;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #12171D; --sheet: #1A2129; --ink: #E4E8EE; --ink-2: #A3ADBA; --rule: #313A45;
  --pen: #93ADF2; --pen-soft: #233150; --ok: #7CC3A0; --warn: #D8B25E; --bad: #EE8C7F;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 400 15px/1.55 var(--sans);
}
a { color: var(--pen); }
:focus-visible { outline: 2px solid var(--pen); outline-offset: 2px; }
button { font: inherit; }

/* top bar */
.bar {
  position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 16px;
  height: 52px; padding: 0 16px; background: var(--sheet); border-bottom: 1px solid var(--rule);
}
.brand { font: 600 17px/1 var(--serif); color: var(--ink); text-decoration: none; }
.progress { margin-left: auto; color: var(--ink-2); font-size: 13px; white-space: nowrap; }
.save { font-size: 13px; color: var(--ink-2); min-width: 9em; text-align: right; }
.save.err { color: var(--bad); }
.navtoggle { display: none; border: 1px solid var(--rule); background: none; color: var(--ink);
  border-radius: 4px; padding: 4px 10px; cursor: pointer; }

.layout { display: grid; grid-template-columns: 290px minmax(0, 1fr); min-height: calc(100vh - 52px); }

/* navigation */
.nav { border-right: 1px solid var(--rule); background: var(--sheet); padding: 12px 0 40px;
  position: sticky; top: 52px; height: calc(100vh - 52px); overflow-y: auto; }
.nav h2 { font: 600 13px/1.3 var(--sans); color: var(--ink-2); margin: 18px 16px 6px; }
.nav a { display: grid; grid-template-columns: 12px 1fr; gap: 8px; align-items: baseline;
  padding: 5px 16px; color: var(--ink); text-decoration: none; font-size: 13.5px; line-height: 1.35; }
.nav a:hover { background: var(--pen-soft); }
.nav a[aria-current="page"] { background: var(--pen-soft); color: var(--pen); font-weight: 500; }
.nav .art { display: block; color: var(--ink-2); font-size: 12px; }
.dot { width: 9px; height: 9px; border-radius: 50%; border: 1.5px solid var(--rule); transform: translateY(1px); }
.dot.part { border-color: var(--pen); background: linear-gradient(90deg, var(--pen) 50%, transparent 50%); }
.dot.done { border-color: var(--pen); background: var(--pen); }

/* main column */
.main { padding: 28px 32px 80px; outline: none; }
.loading, .error { max-width: 60ch; }
.error { color: var(--bad); }
.page { max-width: 1120px; margin: 0 auto; }
.prose { max-width: 68ch; }
.prose h1 { font: 600 30px/1.2 var(--serif); margin: 0 0 14px; }
.prose h2 { font: 600 19px/1.3 var(--serif); margin: 28px 0 8px; }
.prose p, .prose li { color: var(--ink); }
.prose .lede { font: 400 18px/1.6 var(--serif); color: var(--ink-2); }

/* the sheet: statute text on the left, reviewer's margin on the right */
.sheet { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  background: var(--sheet); border: 1px solid var(--rule); border-radius: 3px; }
.naskah { padding: 28px 30px 32px; position: sticky; top: 52px; align-self: start;
  max-height: calc(100vh - 52px); overflow-y: auto; }
.map .opts { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); }
.margin { padding: 24px 28px 32px; border-left: 3px double color-mix(in srgb, var(--pen) 45%, transparent); }
.pasal { font: 600 15px/1.3 var(--serif); color: var(--ink-2); margin: 0 0 10px; }
.naskah h1 { font: 600 27px/1.22 var(--serif); margin: 0 0 4px; }
.naskah .en { color: var(--ink-2); font: italic 400 16px/1.4 var(--serif); margin: 0 0 18px; }
.naskah .def { font: 400 17px/1.7 var(--serif); margin: 0 0 20px; max-width: 62ch; }
.meta { border-top: 1px solid var(--rule); padding-top: 12px; font-size: 13.5px; color: var(--ink-2); }
.meta dt { font-weight: 600; color: var(--ink); }
.meta dd { margin: 0 0 8px; }
.pager { display: flex; justify-content: space-between; gap: 12px; margin-top: 16px; }

/* questions */
.q { margin: 0 0 22px; padding: 0; border: 0; min-width: 0; }
.q legend, .q .qtitle { font-weight: 600; padding: 0; margin-bottom: 8px; }
.q .hint { color: var(--ink-2); font-size: 13.5px; margin: -4px 0 8px; }
.opts { display: flex; flex-wrap: wrap; gap: 6px; }
.opts.stack { flex-direction: column; align-items: stretch; }
.opt { position: relative; }
.opt input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.opt span { display: block; padding: 6px 11px; border: 1px solid var(--rule); border-radius: 4px;
  font-size: 14px; line-height: 1.35; cursor: pointer; background: var(--sheet); }
.opt span small { display: block; color: var(--ink-2); font-size: 12.5px; }
.opt input:checked + span { border-color: var(--pen); background: var(--pen-soft); color: var(--pen); }
.opt input:checked + span small { color: var(--pen); }
.opt input:focus-visible + span { outline: 2px solid var(--pen); outline-offset: 2px; }
textarea, select, input[type="text"], input[type="number"] {
  width: 100%; font: 400 14.5px/1.5 var(--sans); color: var(--pen); background: var(--sheet);
  border: 1px solid var(--rule); border-radius: 4px; padding: 7px 9px; margin-top: 8px;
}
textarea { min-height: 64px; resize: vertical; }
select { color: var(--ink); }
label.field { display: block; margin: 0 0 14px; font-weight: 600; }
label.field textarea, label.field input, label.field select { font-weight: 400; margin-top: 4px; }

.map { border: 1px solid var(--rule); border-radius: 3px; padding: 14px 14px 12px; margin: 0 0 12px; }
.map .tgt { font: 600 15px/1.35 var(--serif); }
.map .src { color: var(--ink-2); font-size: 12.5px; }
.map .tdef { font: 400 14.5px/1.6 var(--serif); margin: 6px 0 10px; }
details summary { cursor: pointer; color: var(--pen); font-size: 13.5px; }
details pre { white-space: pre-wrap; font-size: 12.5px; background: var(--paper); padding: 10px; border-radius: 3px; }

table.res { border-collapse: collapse; width: 100%; font-size: 13.5px; margin: 8px 0 4px; }
table.res th, table.res td { text-align: left; vertical-align: top; padding: 6px 8px; border-bottom: 1px solid var(--rule); }
table.res th { font-weight: 600; color: var(--ink-2); }
.tablewrap { overflow-x: auto; }

table.likert { border-collapse: collapse; width: 100%; }
table.likert td { padding: 12px 6px; border-bottom: 1px solid var(--rule); vertical-align: top; }
table.likert td:first-child { padding-left: 0; }
.scale { display: flex; gap: 4px; }
.scale .opt span { width: 40px; text-align: center; }
.scaleleg { display: flex; justify-content: space-between; font-size: 12px; color: var(--ink-2); max-width: 216px; }

.btn { display: inline-block; padding: 8px 16px; border-radius: 4px; border: 1px solid var(--pen);
  background: var(--pen); color: var(--sheet); font-weight: 600; cursor: pointer; text-decoration: none; }
.btn.ghost { background: none; color: var(--pen); }
.btn[disabled], .btn[aria-disabled="true"] { opacity: .45; pointer-events: none; }
.notice { background: var(--pen-soft); border-radius: 3px; padding: 12px 14px; color: var(--ink); }
.summary { border-collapse: collapse; margin: 12px 0 20px; }
.summary td { padding: 6px 18px 6px 0; border-bottom: 1px solid var(--rule); }
.todo li a { color: var(--pen); }

@media (max-width: 980px) {
  .sheet { grid-template-columns: 1fr; }
  .naskah { position: static; max-height: none; }
  .margin { border-left: 0; border-top: 3px double color-mix(in srgb, var(--pen) 45%, transparent); }
}
@media (max-width: 760px) {
  .layout { grid-template-columns: 1fr; }
  .navtoggle { display: inline-block; }
  .brand { font-size: 15px; }
  .progress { display: none; }
  .nav { display: none; position: fixed; inset: 52px 0 0 0; height: auto; z-index: 9; border-right: 0; }
  .nav.open { display: block; }
  .main { padding: 18px 16px 60px; }
  .naskah, .margin { padding: 18px 16px 22px; }
  .naskah h1 { font-size: 23px; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }