/* Layout: a control-room panel. Navy instrument header, a single working column for the exam, gauge-style readouts for time and score. */
:root {
  --bg: #F3F5F7; --panel: #FFFFFF; --ink: #15212C; --muted: #5A6874; --line: #D5DCE2; --line2: #E7ECF0;
  --navy: #0D2436; --navy-ink: #E8F0F6; --navy-muted: #9DB6C8;
  --amber: #C77A0C; --amber-soft: #FBEFD9; --amber-ink: #8A5200;
  --oxblood: #7A1E2B;
  --ok: #1E7A4C; --ok-soft: #E2F3EA; --bad: #B3261E; --bad-soft: #FBE7E5; --flag: #B26A00;
  --focus: #2F6FA3;
  --f-display: "Barlow Condensed", "Arial Narrow", "Roboto Condensed", sans-serif;
  --f-body: "Source Sans 3", "Segoe UI", Helvetica, Arial, sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) {
  --bg: #0B1620; --panel: #112130; --ink: #E3EBF1; --muted: #93A6B5; --line: #24394B; --line2: #1A2D3D;
  --navy: #071019; --navy-ink: #E3EBF1; --navy-muted: #7F99AC;
  --amber: #F2A531; --amber-soft: #3A2A10; --amber-ink: #F6C36E;
  --oxblood: #D9707D;
  --ok: #5CC98F; --ok-soft: #12321F; --bad: #F08A82; --bad-soft: #3A1714; --flag: #F2A531;
  --focus: #7FB6E0; color-scheme: dark } }
:root[data-theme="dark"] {
  --bg: #0B1620; --panel: #112130; --ink: #E3EBF1; --muted: #93A6B5; --line: #24394B; --line2: #1A2D3D;
  --navy: #071019; --navy-ink: #E3EBF1; --navy-muted: #7F99AC;
  --amber: #F2A531; --amber-soft: #3A2A10; --amber-ink: #F6C36E;
  --oxblood: #D9707D;
  --ok: #5CC98F; --ok-soft: #12321F; --bad: #F08A82; --bad-soft: #3A1714; --flag: #F2A531;
  --focus: #7FB6E0; color-scheme: dark }

* { box-sizing: border-box; }
html, body { background: var(--bg); }
body { color: var(--ink); font-family: var(--f-body); font-size: 16px; line-height: 1.5; }
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 10; background: var(--navy); }
button, select, input { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.wrap { max-width: 1080px; margin: 0 auto; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }

/* header */
.top { background: var(--navy); color: var(--navy-ink); position: sticky; top: env(safe-area-inset-top, 0px); z-index: 5;
  background-image: linear-gradient(rgba(142,195,230,.07) 1px, transparent 1px), linear-gradient(90deg, rgba(142,195,230,.07) 1px, transparent 1px);
  background-size: 18px 18px; }
.top .wrap { display: flex; align-items: center; gap: 16px; padding-block: 12px; flex-wrap: wrap; }
.brand { display: flex; align-items: baseline; gap: 10px; cursor: pointer; background: none; border: 0; padding: 0; text-align: left; }
.brand b { font-family: var(--f-display); font-weight: 700; font-size: 24px; letter-spacing: .02em; text-transform: uppercase; color: var(--navy-ink); }
.brand span { font-family: var(--f-mono); font-size: 11px; letter-spacing: .08em; color: var(--amber); text-transform: uppercase; }
.top nav { margin-left: auto; display: flex; gap: 4px; flex-wrap: wrap; }
.top nav button { background: none; border: 1px solid transparent; color: var(--navy-muted); padding: 6px 10px; border-radius: 4px; cursor: pointer;
  font-family: var(--f-display); font-size: 16px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; }
.top nav button:hover { color: var(--navy-ink); }
.top nav button[aria-current="page"] { color: var(--navy-ink); border-color: rgba(242,165,49,.6); }

main { padding-block: 28px 64px; }
h1, h2, h3 { font-family: var(--f-display); text-wrap: balance; margin: 0; letter-spacing: .01em; }
h1 { font-size: 40px; line-height: 1.05; font-weight: 700; text-transform: uppercase; }
h2 { font-size: 24px; font-weight: 700; text-transform: uppercase; letter-spacing: .03em; }
h3 { font-size: 19px; font-weight: 600; }
.eyebrow { font-family: var(--f-mono); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--amber-ink); }
.lede { color: var(--muted); max-width: 64ch; margin: 10px 0 0; }
.muted { color: var(--muted); }
.mono { font-family: var(--f-mono); font-variant-numeric: tabular-nums; }
.stack { display: flex; flex-direction: column; gap: 14px; }
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }

/* home */
.hero { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 28px; align-items: end; margin-bottom: 28px; }
.bankmeter { border: 1px solid var(--line); background: var(--panel); border-radius: 6px; padding: 14px 16px; display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 10px; }
.bankmeter div { min-width: 0; }
.bankmeter b { display: block; font-family: var(--f-mono); font-size: 26px; font-weight: 600; font-variant-numeric: tabular-nums; }
.bankmeter small { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }
.notice { border-left: 3px solid var(--amber); background: var(--amber-soft); padding: 10px 14px; border-radius: 0 4px 4px 0; font-size: 14.5px; color: var(--ink); max-width: 80ch; }
.formats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 18px; }
.fmt { border: 1px solid var(--line); background: var(--panel); border-radius: 6px; padding: 18px; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.fmt .tag { font-family: var(--f-mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.fmt .spec { display: flex; gap: 16px; flex-wrap: wrap; font-family: var(--f-mono); font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums; }
.fmt .spec b { color: var(--ink); font-weight: 600; }
.fmt p { margin: 0; font-size: 15px; color: var(--muted); }
.fmt .areas { font-size: 13px; color: var(--muted); line-height: 1.45; }
.fmt .actions { margin-top: auto; display: flex; gap: 8px; flex-wrap: wrap; }
.fmt.chi { box-shadow: inset 3px 0 0 var(--amber); }
.fmt.nyc { box-shadow: inset 3px 0 0 var(--oxblood); }
.section { margin-top: 40px; }

.btn { border: 1px solid var(--line); background: var(--panel); padding: 9px 14px; border-radius: 4px; cursor: pointer; font-weight: 600; font-size: 15px; }
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--navy); color: #fff; border-color: var(--navy); }
:root[data-theme="dark"] .btn.primary { background: var(--amber); color: #1B1204; border-color: var(--amber); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .btn.primary { background: var(--amber); color: #1B1204; border-color: var(--amber); } }
.btn.ghost { background: transparent; }
.btn:disabled { opacity: .45; cursor: not-allowed; }

/* drill builder */
.builder { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); gap: 20px; }
fieldset { border: 1px solid var(--line); border-radius: 6px; background: var(--panel); padding: 14px 16px 16px; margin: 0; min-width: 0; }
legend { font-family: var(--f-display); font-weight: 700; font-size: 17px; text-transform: uppercase; letter-spacing: .04em; padding: 0 6px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { position: relative; }
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip label { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--line); border-radius: 999px; padding: 5px 11px; font-size: 14px; cursor: pointer; background: var(--bg); }
.chip label .n { font-family: var(--f-mono); font-size: 11px; color: var(--muted); }
.chip input:checked + label { background: var(--navy); color: #fff; border-color: var(--navy); }
.chip input:checked + label .n { color: var(--navy-muted); }
.chip input:focus-visible + label { outline: 2px solid var(--focus); outline-offset: 2px; }
.chip input:disabled + label { opacity: .4; cursor: not-allowed; }
.grouphead { font-family: var(--f-mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin: 12px 0 6px; }
.grouphead:first-of-type { margin-top: 2px; }
.linkbtn { background: none; border: 0; padding: 0; color: var(--focus); cursor: pointer; font-size: 13px; text-decoration: underline; text-underline-offset: 2px; }

/* exam */
.examgrid { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 22px; align-items: start; }
.qcard { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 22px 24px; min-width: 0; }
.qmeta { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; font-family: var(--f-mono); font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.pill { border: 1px solid var(--line); border-radius: 3px; padding: 1px 7px; font-family: var(--f-mono); font-size: 11px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); white-space: nowrap; }
.pill.calc { color: var(--amber-ink); border-color: var(--amber); }
.pill.j { color: var(--oxblood); border-color: var(--oxblood); }
.stem { font-size: 19px; line-height: 1.5; margin: 14px 0 18px; max-width: 70ch; }
.opts { display: flex; flex-direction: column; gap: 8px; }
.opt { display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: 10px; align-items: start; text-align: left; width: 100%; padding: 11px 14px; border: 1px solid var(--line); border-radius: 5px; background: var(--bg); cursor: pointer; font-size: 16.5px; line-height: 1.45; }
.opt:hover { border-color: var(--muted); }
.opt .L { font-family: var(--f-mono); font-weight: 600; width: 28px; height: 28px; border: 1px solid var(--line); border-radius: 50%; display: grid; place-items: center; font-size: 13px; background: var(--panel); }
.opt[aria-pressed="true"] { border-color: var(--navy); box-shadow: inset 0 0 0 1px var(--navy); }
:root[data-theme="dark"] .opt[aria-pressed="true"] { border-color: var(--amber); box-shadow: inset 0 0 0 1px var(--amber); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .opt[aria-pressed="true"] { border-color: var(--amber); box-shadow: inset 0 0 0 1px var(--amber); } }
.opt[aria-pressed="true"] .L { background: var(--navy); color: #fff; border-color: var(--navy); }
.opt.correct { border-color: var(--ok); background: var(--ok-soft); box-shadow: none; }
.opt.correct .L { background: var(--ok); color: #fff; border-color: var(--ok); }
.opt.wrong { border-color: var(--bad); background: var(--bad-soft); box-shadow: none; }
.opt.wrong .L { background: var(--bad); color: #fff; border-color: var(--bad); }
.opt:disabled { cursor: default; }
.explain { margin-top: 16px; border-top: 1px dashed var(--line); padding-top: 14px; font-size: 15.5px; }
.explain .verdict { font-family: var(--f-display); font-weight: 700; font-size: 18px; text-transform: uppercase; letter-spacing: .04em; }
.explain .verdict.ok { color: var(--ok); } .explain .verdict.bad { color: var(--bad); }
.explain p { margin: 6px 0 0; max-width: 72ch; }
.ref { font-family: var(--f-mono); font-size: 12.5px; color: var(--muted); margin-top: 8px; }
.qnav { display: flex; gap: 8px; justify-content: space-between; margin-top: 20px; flex-wrap: wrap; }
.side { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 76px); display: flex; flex-direction: column; gap: 14px; }
.gauge { background: var(--navy); color: var(--navy-ink); border-radius: 6px; padding: 14px 16px; }
.gauge small { font-family: var(--f-mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--navy-muted); }
.gauge .t { font-family: var(--f-mono); font-size: 34px; font-weight: 600; font-variant-numeric: tabular-nums; line-height: 1.1; }
.gauge .t.low { color: #F2A531; }
.gauge .bar { height: 4px; background: rgba(255,255,255,.12); border-radius: 2px; margin-top: 10px; overflow: hidden; }
.gauge .bar i { display: block; height: 100%; background: #F2A531; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(34px, 1fr)); gap: 5px; background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 12px; max-height: 320px; overflow: auto; }
.grid button { font-family: var(--f-mono); font-size: 12px; height: 30px; border: 1px solid var(--line); border-radius: 3px; background: var(--bg); cursor: pointer; padding: 0; font-variant-numeric: tabular-nums; position: relative; }
.grid button.ans { background: var(--line2); border-color: var(--muted); }
.grid button.cur { outline: 2px solid var(--focus); outline-offset: 0; }
.grid button.flag::after { content: ""; position: absolute; top: 2px; right: 2px; width: 6px; height: 6px; border-radius: 50%; background: var(--flag); }
.legend { display: flex; gap: 12px; flex-wrap: wrap; font-size: 12px; color: var(--muted); }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 4px; vertical-align: -1px; border: 1px solid var(--muted); }
.confirm { border: 1px solid var(--amber); background: var(--amber-soft); border-radius: 6px; padding: 14px; font-size: 15px; }
.maptoggle { display: none; align-self: flex-start; }
.kbd { font-family: var(--f-mono); font-size: 11.5px; color: var(--muted); }

/* results */
.scorehead { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 26px; align-items: center; background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 22px 24px; }
.dial { width: 150px; height: 150px; }
.verdictbig { font-family: var(--f-display); font-size: 34px; font-weight: 700; text-transform: uppercase; letter-spacing: .03em; }
.verdictbig.pass { color: var(--ok); } .verdictbig.fail { color: var(--bad); }
.areas-tbl { width: 100%; border-collapse: collapse; font-size: 15px; }
.areas-tbl th { text-align: left; font-family: var(--f-mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); font-weight: 500; padding: 8px 8px; border-bottom: 1px solid var(--line); }
.areas-tbl td { padding: 9px 8px; border-bottom: 1px solid var(--line2); vertical-align: middle; }
.areas-tbl td.num { font-family: var(--f-mono); font-variant-numeric: tabular-nums; white-space: nowrap; text-align: right; }
.hbar { position: relative; height: 10px; background: var(--line2); border-radius: 2px; min-width: 90px; }
.hbar i { position: absolute; inset: 0 auto 0 0; border-radius: 2px; background: var(--ok); }
.hbar i.weak { background: var(--bad); }
.hbar b { position: absolute; top: -3px; bottom: -3px; width: 2px; background: var(--ink); opacity: .55; }
.tblwrap { overflow-x: auto; background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 6px 10px; }
.review { display: flex; flex-direction: column; gap: 12px; }
.ritem { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 16px 18px; }
.ritem.bad { box-shadow: inset 3px 0 0 var(--bad); }
.ritem.ok { box-shadow: inset 3px 0 0 var(--ok); }
.ritem .s { margin: 8px 0; font-size: 16.5px; }
.ritem ol { margin: 0; padding-left: 0; list-style: none; display: flex; flex-direction: column; gap: 3px; font-size: 15px; }
.ritem li { padding: 3px 8px; border-radius: 3px; }
.ritem li.c { background: var(--ok-soft); }
.ritem li.y { background: var(--bad-soft); }
.ritem li span { font-family: var(--f-mono); font-weight: 600; margin-right: 8px; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 4px; overflow: hidden; }
.seg button { border: 0; background: var(--panel); padding: 6px 12px; cursor: pointer; font-size: 14px; }
.seg button[aria-pressed="true"] { background: var(--navy); color: #fff; }

/* progress */
.statgrid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 14px 16px; min-width: 0; }
.stat b { display: block; font-family: var(--f-mono); font-size: 28px; font-weight: 600; font-variant-numeric: tabular-nums; }
.stat small { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }
.empty { border: 1px dashed var(--line); border-radius: 6px; padding: 24px; color: var(--muted); text-align: center; }
.foot { margin-top: 48px; font-size: 13px; color: var(--muted); border-top: 1px solid var(--line); padding-top: 14px; max-width: 90ch; }

@media (max-width: 860px) {
  .hero, .builder, .examgrid { grid-template-columns: minmax(0, 1fr); }
  .side { position: static; order: -1; gap: 8px; }
  .side .grid, .side .legend { display: none; }
  .side.open .grid, .side.open .legend { display: grid; }
  .side.open .legend { display: flex; }
  .grid { max-height: 190px; }
  .gauge { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 14px; flex-wrap: wrap; }
  .gauge .t { font-size: 24px; }
  .gauge .bar { flex-basis: 100%; margin-top: 2px; }
  .maptoggle { display: inline-flex !important; }
  .statgrid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 620px) {
  .formats { grid-template-columns: minmax(0, 1fr); }
  h1 { font-size: 32px; }
  .qcard { padding: 18px 16px; }
  .stem { font-size: 17.5px; }
  .scorehead { grid-template-columns: minmax(0, 1fr); justify-items: start; }
  .top nav { margin-left: 0; }
  .top .wrap { gap: 6px 12px; padding-block: 10px; }
  .brand b { font-size: 20px; }
  .brand span { display: none; }
  .top nav button { font-size: 15px; padding: 4px 8px; }
  .kbd { display: none; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }

/* ---- app pages (forms, pricing, account, admin) ---- */
.page { max-width: 1080px; margin: 0 auto; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); padding-block: 28px 64px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 20px; }
.narrow { max-width: 460px; }
label.f { display: block; font-weight: 600; margin: 14px 0 6px; }
input.f, textarea.f, select.f { width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 4px; background: var(--bg); font-size: 16px; }
textarea.f { min-height: 90px; }
.err { color: var(--bad); margin-top: 10px; }
.ok { color: var(--ok); margin-top: 10px; }
.plans { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-top: 20px; }
.plan { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 18px; display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.plan.best { border-color: var(--amber); box-shadow: inset 0 3px 0 var(--amber); }
.plan .price { font-family: var(--f-mono); font-size: 30px; font-weight: 600; }
.plan .price small { font-size: 14px; color: var(--muted); font-weight: 400; }
.plan ul { margin: 0; padding-left: 18px; color: var(--muted); font-size: 15px; }
.plan form { margin-top: auto; }
.plan .btn { width: 100%; }
.tbl { width: 100%; border-collapse: collapse; font-size: 15px; }
.tbl th { text-align: left; font-family: var(--f-mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); font-weight: 500; padding: 8px; border-bottom: 1px solid var(--line); }
.tbl td { padding: 8px; border-bottom: 1px solid var(--line2); vertical-align: top; }
.tbl td.num { font-family: var(--f-mono); text-align: right; white-space: nowrap; }
.legal { max-width: 72ch; }
.legal h2 { margin-top: 26px; }
.flash { background: var(--amber-soft); border-left: 3px solid var(--amber); padding: 10px 14px; margin-bottom: 16px; }
.oral-answer { width: 100%; min-height: 160px; padding: 12px; border: 1px solid var(--line); border-radius: 5px; background: var(--bg); font-size: 16px; line-height: 1.5; }
.rubric { margin: 12px 0 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 8px; }
.rubric li { border: 1px solid var(--line); border-radius: 5px; padding: 10px 12px; }
.rubric li.hit { border-color: var(--ok); background: var(--ok-soft); }
.rubric li.miss { border-color: var(--bad); background: var(--bad-soft); }
@media (max-width: 860px) { .plans { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .plans { grid-template-columns: minmax(0, 1fr); } }
body { margin: 0; }
[hidden] { display: none !important; }