:root {
  --ink: #1a2332;
  --navy: #243b55;
  --accent: #2f6f4f;
  --muted: #5f6673;  /* >= 5:1 on every tinted surface (WCAG AA) */
  --line: #e5e7eb;
  --bg: #f8f9fb;
  --paper: #ffffff;
  --danger: #b4232a;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
}

a { color: var(--accent); }

.site-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.9rem 1.5rem; background: var(--navy); color: #fff;
}
.site-header a { color: #fff; text-decoration: none; margin-left: 1rem; }
.brand { font-weight: 700; font-size: 1.2rem; margin: 0; }
.site-header nav { display: flex; align-items: center; }
.who { opacity: 0.85; font-size: 0.9rem; }
.inline { display: inline; margin: 0 0 0 1rem; }
button.link { background: none; border: none; color: #fff; cursor: pointer; font: inherit; text-decoration: underline; padding: 0; }

.container { max-width: 880px; margin: 2rem auto; padding: 0 1.25rem; }
.narrow { max-width: 420px; margin: 0 auto; }

.hero h1 { font-size: 2.6rem; margin: 0 0 0.5rem; }
.lede { font-size: 1.15rem; color: var(--muted); max-width: 48ch; }
.cta { margin: 1.5rem 0; }

.btn {
  display: inline-block; padding: 0.6rem 1.1rem; border-radius: var(--radius);
  border: 1px solid var(--line); background: var(--paper); color: var(--ink);
  text-decoration: none; cursor: pointer; font: inherit; margin-right: 0.6rem;
}
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }

form label { display: block; margin: 1rem 0 0.25rem; font-weight: 600; }
form input[type=text], form input[type=email] {
  width: 100%; padding: 0.6rem; border: 1px solid var(--line); border-radius: var(--radius); font: inherit;
}
form .btn-primary { margin-top: 1.25rem; }

.flashes { list-style: none; padding: 0; margin: 0 0 1.5rem; }
.flash { padding: 0.7rem 1rem; border-radius: var(--radius); margin-bottom: 0.5rem; border: 1px solid var(--line); }
.flash-error, .flash-danger { background: #fdecec; border-color: #f3b4b4; color: var(--danger); }
.flash-success { background: #e9f5ef; border-color: #b7e0cc; color: var(--accent); }
.flash-info { background: #eef2f8; border-color: #cdd9ea; }

.card-list { list-style: none; padding: 0; }
.card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem 1.2rem; margin-bottom: 0.75rem; }
.card .meta { display: block; color: var(--muted); font-size: 0.9rem; margin-top: 0.25rem; }

.stats { list-style: none; display: flex; gap: 2rem; padding: 0; }
.stats .num { display: block; font-size: 2rem; font-weight: 700; color: var(--navy); }

.muted { color: var(--muted); }
code { background: #eef0f4; padding: 0.1rem 0.35rem; border-radius: 5px; }

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

/* --- Play ----------------------------------------------------------------- */
.crumbs { margin-bottom: 1rem; font-size: 0.9rem; }
.crumbs a { color: var(--muted); }
.mt { margin-top: 0.75rem; }
.done, .solved-note { color: var(--accent); font-weight: 600; }

.briefing { max-width: 680px; }
.briefing section { margin: 1.5rem 0; }
.briefing .tip { background: #fff8e8; border-left: 4px solid #e4b53b; padding: 0.75rem 1rem; border-radius: 6px; }
.briefing .cast { list-style: none; padding: 0; }
.briefing .cast li { padding: 0.3rem 0; border-bottom: 1px solid var(--line); }

.case-title { margin-bottom: 1rem; }
.workspace { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; align-items: start; }
.request-panel { grid-column: 1 / -1; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.2rem; }
.evidence-panel, .questions-panel { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.2rem; }
@media (max-width: 760px) { .workspace { grid-template-columns: 1fr; } }

.request-box { width: 100%; min-height: 64px; padding: 0.7rem; border: 1px solid var(--line); border-radius: var(--radius); font: inherit; resize: vertical; }

.confirm { margin-top: 1rem; border-top: 1px dashed var(--line); padding-top: 1rem; }
.confirm-lead { font-weight: 600; margin: 0 0 0.75rem; }
.field { margin-bottom: 0.9rem; }
.field label { display: block; font-weight: 600; margin-bottom: 0.25rem; }
.field select, .field input[type=text] { width: 100%; padding: 0.5rem; border: 1px solid var(--line); border-radius: 8px; font: inherit; }
.field select.unparsed { border-color: var(--danger); }
.field .hint { color: var(--danger); font-size: 0.85rem; }
.unknown-note { color: #8a6d00; background: #fff8e8; padding: 0.4rem 0.6rem; border-radius: 6px; font-size: 0.9rem; }
.confirm-actions { display: flex; gap: 0.6rem; margin-top: 0.5rem; }

.chips { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.chips.static .chip { background: #eef2f8; }
.chip { display: inline-flex; align-items: center; gap: 0.35rem; background: #eef2f8; border: 1px solid var(--line); border-radius: 999px; padding: 0.25rem 0.7rem; font-size: 0.88rem; cursor: pointer; list-style: none; }
.chip input { margin: 0; }

.locker-head { display: flex; justify-content: space-between; align-items: baseline; }
.hours { background: #eef2f8; border-radius: 999px; padding: 0.2rem 0.7rem; font-size: 0.85rem; font-weight: 600; }
.request-result { padding: 0.5rem 0.75rem; border-radius: 8px; font-size: 0.92rem; }
.request-result.ok { background: #e9f5ef; color: var(--accent); }
.request-result.pushback { background: #fdecec; color: var(--danger); }

.doc-list { list-style: none; padding: 0; }
.doc { display: flex; align-items: center; gap: 0.6rem; padding: 0.55rem 0; border-bottom: 1px solid var(--line); }
.doc-name { font-weight: 600; flex: 1; }
.doc-type { color: var(--muted); font-size: 0.82rem; text-transform: capitalize; }
.btn-sm { padding: 0.35rem 0.7rem; font-size: 0.85rem; }
.btn-ghost { background: none; border: 1px solid var(--line); }
.known-parties { margin-top: 1rem; }
.known-parties h3 { font-size: 0.95rem; margin-bottom: 0.5rem; }

.questions { list-style: none; padding: 0; counter-reset: q; }
.question { border: 1px solid var(--line); border-radius: 10px; padding: 0.9rem; margin-bottom: 0.8rem; }
.question.solved { background: #f3faf6; border-color: #bfe3cf; }
.question.locked { background: #f6f7f9; border-style: dashed; }  /* no opacity: keeps text contrast */
.q-head { display: flex; gap: 0.6rem; align-items: baseline; }
.q-points { background: var(--navy); color: #fff; border-radius: 6px; padding: 0.1rem 0.5rem; font-size: 0.78rem; white-space: nowrap; }
.q-prompt { font-weight: 600; }
.question form { margin-top: 0.7rem; }
.question input[type=text] { width: 100%; padding: 0.5rem; border: 1px solid var(--line); border-radius: 8px; font: inherit; }
.choices { display: flex; flex-direction: column; gap: 0.35rem; }
.choice { display: flex; gap: 0.5rem; align-items: center; cursor: pointer; }
.q-actions { display: flex; gap: 0.5rem; margin-top: 0.6rem; }
.hints { margin: 0.6rem 0 0; padding-left: 1rem; font-size: 0.9rem; }
.wrong-note { color: var(--danger); font-size: 0.88rem; margin-top: 0.4rem; }
.locked-note { font-size: 0.88rem; }
.complete-banner { background: #e9f5ef; color: var(--accent); padding: 0.8rem; border-radius: 10px; text-align: center; font-weight: 600; }

/* --- Instructor ----------------------------------------------------------- */
.panel { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.2rem; margin: 1.2rem 0; }
.panel-head { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 0.5rem; }
.panel-head h2 { margin: 0; }
.inline-form { display: flex; flex-wrap: wrap; gap: 0.6rem 1rem; align-items: end; }
.inline-form label { display: block; font-weight: 600; margin-bottom: 0.2rem; font-size: 0.9rem; }
.inline-form input, .inline-form select { padding: 0.5rem; border: 1px solid var(--line); border-radius: 8px; font: inherit; }
.inline-form .btn-primary { margin-top: 0; }

table.grid { width: 100%; border-collapse: collapse; margin-top: 0.75rem; font-size: 0.92rem; }
table.grid th { text-align: left; background: #f1f4f8; padding: 0.5rem 0.6rem; border-bottom: 2px solid var(--line); }
table.grid td { padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.sm { font-size: 0.8rem; }

.status { font-size: 0.8rem; padding: 0.15rem 0.5rem; border-radius: 999px; }
.status-completed { background: #e9f5ef; color: var(--accent); }
.status-in-progress { background: #eef2f8; color: var(--navy); }
.status-not-started { background: #f1f1f1; color: var(--muted); }
.status-completed-late, .status-overdue { background: #fdecec; color: var(--danger); }
.badge-late { background: #fdecec; color: var(--danger); }
.late-banner { background: #fff8e8; color: #8a6d00; border-radius: 6px; padding: 0.5rem 0.75rem; }

.exports { margin-top: 0.8rem; font-size: 0.9rem; color: var(--muted); }
.panel-actions .btn-sm { text-decoration: none; }

.trail { list-style: none; padding: 0; }
.trail > li { border-left: 3px solid var(--line); padding: 0.5rem 0 0.5rem 0.9rem; margin-bottom: 0.8rem; }
.trail-head { display: flex; gap: 0.6rem; align-items: center; }
.trail-time { font-weight: 600; }
.trail-hours { background: #eef2f8; border-radius: 999px; padding: 0.1rem 0.5rem; font-size: 0.8rem; }
.badge { background: #fff8e8; color: #8a6d00; border-radius: 6px; padding: 0.1rem 0.45rem; font-size: 0.75rem; }
.trail-raw { margin: 0.3rem 0; font-style: italic; }
.trail-docs { margin: 0.3rem 0 0; padding-left: 1.1rem; font-size: 0.9rem; }

.instructor-only { color: var(--danger); font-weight: 600; }
.notes p { line-height: 1.6; }
.checks { list-style: none; padding: 0; }
.checks li { padding: 0.25rem 0; }
/* --- Accessibility -------------------------------------------------------- */
:focus-visible { outline: 3px solid #e4b53b; outline-offset: 2px; }
.skip-link { position: absolute; left: 1rem; top: -3rem; background: var(--paper); color: var(--ink); padding: 0.5rem 0.9rem; border-radius: var(--radius); z-index: 10; }
.skip-link:focus { top: 0.5rem; }
main:focus { outline: none; }
.choices { border: 0; padding: 0; margin: 0; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
[x-cloak] { display: none !important; }