:root {
  --bg: #F4F6FB;
  --card: #FFFFFF;
  --card2: #F8FAFC;
  --ink: #0F172A;
  --dim: #64748B;
  --line: #E2E8F0;
  --accent: #4F6DF5;
  --accent-dk: #3B53C9;
  --accent-soft: #EEF1FE;
  --good: #059669;
  --good-soft: #ECFDF5;
  --warn: #D97706;
  --warn-soft: #FFFBEB;
  --bad: #E11D48;
  --bad-soft: #FFF1F2;
  --radius: 14px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: Inter, "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg); color: var(--ink);
  min-height: 100vh; line-height: 1.55;
}
.wrap { max-width: 860px; margin: 0 auto; padding: 16px; padding-bottom: 48px; }
#intake { max-width: 420px; margin: 4vh auto 0; }
#code { font-family: "JetBrains Mono", Consolas, monospace; letter-spacing: .12em; text-align: center; font-weight: 700; }

/* brand header */
.brand { display: flex; align-items: center; gap: 10px; padding: 10px 0 18px; }
.brand .mark {
  width: 34px; height: 34px; border-radius: 10px; background: var(--accent);
  color: #fff; display: grid; place-items: center; font-weight: 800; font-size: 1.05rem;
}
.brand .name { font-weight: 800; font-size: 1.05rem; letter-spacing: -.01em; }
.brand .name span { color: var(--accent); }
.brand .tag { color: var(--dim); font-size: .78rem; }

h1 { font-size: 1.35rem; margin-bottom: 4px; letter-spacing: -.01em; }
h2 { font-size: 1.08rem; margin: 18px 0 10px; letter-spacing: -.01em; }
.sub { color: var(--dim); font-size: .92rem; margin-bottom: 18px; }
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 18px; margin-bottom: 14px;
  box-shadow: 0 1px 2px rgba(15,23,42,.04);
}
label { display: block; font-size: .85rem; font-weight: 600; color: var(--dim); margin: 12px 0 5px; }
input, textarea, select {
  width: 100%; padding: 13px 14px; font-size: 1rem;
  background: var(--card); color: var(--ink);
  border: 1px solid var(--line); border-radius: 10px;
  font-family: inherit;
}
textarea { min-height: 110px; resize: vertical; }
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(79,109,245,.15); }
button {
  display: inline-block; padding: 13px 20px; font-size: 1rem; font-weight: 600;
  background: var(--accent); color: #fff; border: none; border-radius: 10px;
  cursor: pointer; min-height: 46px; font-family: inherit;
}
button:hover { background: var(--accent-dk); }
button:active { transform: translateY(1px); }
button:focus-visible { outline: 3px solid rgba(79,109,245,.4); outline-offset: 2px; }
button:disabled { opacity: .55; cursor: default; }
button.ghost { background: var(--card); border: 1px solid var(--line); color: var(--ink); }
button.ghost:hover { background: var(--card2); }
button.small { padding: 8px 14px; font-size: .85rem; min-height: 36px; }
button.good { background: var(--good); }
button.good:hover { background: #047857; }
button.bad { background: var(--bad); }
button.bad:hover { background: #BE123C; }
.wfull { width: 100%; margin-top: 14px; }
.err { color: var(--bad); font-size: .9rem; margin-top: 10px; min-height: 1.2em; }
.ok { color: var(--good); }
.hidden { display: none !important; }

/* tabs */
.tabs {
  display: flex; gap: 6px; overflow-x: auto; padding: 4px 0 10px;
  position: sticky; top: 0; background: var(--bg); z-index: 5;
  -webkit-overflow-scrolling: touch;
}
.tab {
  flex: 1 0 auto; padding: 11px 16px; border-radius: 10px; text-align: center;
  background: var(--card); color: var(--dim); font-weight: 600; font-size: .92rem;
  border: 1px solid var(--line); cursor: pointer; white-space: nowrap;
}
.tab.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* study blocks */
.callout {
  background: var(--accent-soft); border-left: 3px solid var(--accent);
  padding: 12px 14px; border-radius: 8px; margin-top: 12px; font-size: .95rem;
}
ul.tight { padding-left: 20px; } ul.tight li { margin: 6px 0; }
table.vt { width: 100%; border-collapse: collapse; font-size: .9rem; margin-top: 8px; }
table.vt th, table.vt td { padding: 8px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
table.vt th { color: var(--dim); font-weight: 600; }

/* questions */
.opt {
  display: flex; gap: 10px; align-items: flex-start;
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 12px 14px; margin: 8px 0; cursor: pointer; font-size: .98rem;
}
.opt:hover { border-color: #C7D2FE; }
.opt.sel { border-color: var(--accent); background: var(--accent-soft); }
.opt .dot {
  flex: 0 0 26px; height: 26px; border-radius: 8px;
  border: 1.5px solid #CBD5E1; margin-top: 1px;
  display: grid; place-items: center;
  font-size: .8rem; font-weight: 700; color: var(--dim);
}
.opt.sel .dot { border-color: var(--accent); background: var(--accent); color: #fff; }
.qtitle { font-weight: 600; margin: 4px 0 2px; }
.qnum { color: var(--dim); font-size: .8rem; }
.written { white-space: pre-wrap; background: var(--card2); border: 1px solid var(--line);
  border-radius: 10px; padding: 14px; margin: 10px 0; font-size: .95rem; }

/* banners */
.banner { padding: 16px; border-radius: var(--radius); text-align: center; font-weight: 600; margin-bottom: 14px; }
.banner.good { background: var(--good-soft); border: 1px solid #6EE7B7; color: #065F46; }
.banner.info { background: var(--accent-soft); border: 1px solid #C7D2FE; color: #3730A3; }
.banner.warn { background: var(--warn-soft); border: 1px solid #FCD34D; color: #92400E; }

/* bio cards */
.bio-head { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.bio-meta { color: var(--dim); font-size: .85rem; }
.bio-prompt {
  background: var(--card2); border: 1px dashed var(--line); border-radius: 10px;
  padding: 12px; font-size: .85rem; color: var(--dim); margin-top: 10px;
}

/* admin */
.admin-grid { display: grid; gap: 10px; }
.pill { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: .78rem; font-weight: 700; }
.pill.in_progress { background: #E2E8F0; color: #334155; }
.pill.submitted { background: var(--warn-soft); color: #92400E; border: 1px solid #FCD34D; }
.pill.passed { background: var(--good-soft); color: #065F46; border: 1px solid #6EE7B7; }
.pill.failed { background: var(--bad-soft); color: #9F1239; border: 1px solid #FDA4AF; }
table.ct { width: 100%; border-collapse: collapse; font-size: .88rem; }
table.ct th, table.ct td { padding: 9px 8px; border-bottom: 1px solid var(--line); text-align: left; }
table.ct th { color: var(--dim); font-weight: 600; font-size: .8rem; }
table.ct tr:hover td { background: var(--card2); }
.linkbox { display: flex; gap: 8px; margin-top: 10px; align-items: center; }
.linkbox input { flex: 1; font-size: .85rem; }
.detail-answer { background: var(--card2); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; margin: 8px 0; font-size: .9rem; }
.detail-answer .q { color: var(--dim); font-size: .8rem; margin-bottom: 4px; font-weight: 600; }
.mono { font-family: "JetBrains Mono", Consolas, monospace; font-size: .8rem; word-break: break-all; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.grow { flex: 1; min-width: 160px; }
pre { font-family: inherit; font-size: .9rem; line-height: 1.6; }

/* sticky submit bar + progress */
.submitbar {
  position: sticky; bottom: 0; z-index: 6;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 12px 14px; box-shadow: 0 -4px 16px rgba(15,23,42,.08);
  display: flex; gap: 12px; align-items: center;
}
.submitbar .prog { color: var(--dim); font-size: .85rem; font-weight: 600; white-space: nowrap; }
.submitbar button { flex: 1; margin: 0; }

/* result score */
.score-big { font-size: 2.6rem; font-weight: 800; letter-spacing: -.02em; line-height: 1; }
.score-big.pass { color: var(--good); }
.score-big.fail { color: var(--bad); }
.score-cap { color: var(--dim); font-size: .85rem; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; }
.chip { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: .75rem; font-weight: 700;
  background: var(--accent-soft); color: var(--accent-dk); border: 1px solid #C7D2FE; }
.fb-row { display: flex; gap: 10px; align-items: flex-start; padding: 10px 0; border-bottom: 1px solid var(--line); }
.fb-row:last-child { border-bottom: none; }
.fb-score { flex: 0 0 44px; height: 26px; border-radius: 999px; display: grid; place-items: center;
  font-size: .78rem; font-weight: 800; background: var(--card2); border: 1px solid var(--line); color: var(--ink); }
.fb-score.lo { background: var(--bad-soft); color: #9F1239; border-color: #FDA4AF; }
.fb-score.hi { background: var(--good-soft); color: #065F46; border-color: #6EE7B7; }

/* admin stats */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 14px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px; }
.stat .n { font-size: 1.5rem; font-weight: 800; letter-spacing: -.02em; }
.stat .l { color: var(--dim); font-size: .78rem; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; }
@media (max-width: 560px) { .stats { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) {
  table.ct { font-size: .8rem; }
  table.ct th:nth-child(6), table.ct td:nth-child(6) { display: none; }
  .submitbar { flex-direction: column; align-items: stretch; }
}