:root {
  --ink: #16181d;
  --muted: #5b6070;
  --line: #e4e6eb;
  --soft: #f6f7f9;
  --navy: #000e54;
  --orange: #f76900;
  --bg: #ffffff;
  --focus: #2b72d7;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #eceef3;
    --muted: #a7adbb;
    --line: #2a2f3a;
    --soft: #161a22;
    --navy: #9fb3ff;
    --bg: #0e1117;
    --focus: #7fb0ff;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 "Figtree", "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 0 20px; }
a { color: var(--navy); text-underline-offset: 3px; }
a:focus-visible, .button:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 4px; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 12px; background: var(--bg); padding: 8px 12px; z-index: 10; }

.top { border-bottom: 1px solid var(--line); position: sticky; top: 0; background: var(--bg); z-index: 5; }
.top-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 8px; font-family: "Archivo", sans-serif; font-stretch: 85%; font-weight: 800; font-size: 19px; text-transform: uppercase; letter-spacing: 0.01em; color: var(--ink); text-decoration: none; }
.mark { width: 22px; height: 22px; color: var(--orange); flex: none; }
nav { display: flex; gap: 20px; font-size: 15px; }
nav a { color: var(--muted); text-decoration: none; padding: 18px 0; border-bottom: 2px solid transparent; }
nav a:hover { color: var(--ink); }
nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--orange); }

main.wrap { padding-top: 48px; padding-bottom: 32px; }
.eyebrow { margin: 0 0 6px; font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
h1, h2 { font-family: "Archivo", sans-serif; }
h1 { margin: 0 0 6px; font-size: 42px; line-height: 1.05; font-weight: 800; font-stretch: 80%; text-transform: uppercase; letter-spacing: 0; color: var(--navy); }
.meta { margin: 0 0 28px; color: var(--muted); font-size: 15px; }
.lead { font-size: 18px; color: var(--ink); max-width: 62ch; }
h2 { margin: 0 0 10px; font-size: 19px; font-weight: 500; letter-spacing: -0.005em; }

.brand .team { font-family: "Figtree", sans-serif; font-weight: 500; text-transform: none; color: var(--muted); font-size: 14px; margin-left: 2px; }
.brand .team::before { content: "\00b7"; margin: 0 8px 0 2px; }

.progress { height: 4px; background: var(--line); border-radius: 4px; overflow: hidden; margin: 0 0 32px; display: none; }
.paged .progress { display: block; }
.bar { height: 100%; width: 0; background: var(--orange); transition: width .3s ease; }

.screen { padding: 8px 0 32px; border-bottom: 1px solid var(--line); margin-bottom: 32px; }
.paged .screen { border-bottom: 0; margin-bottom: 0; min-height: 52vh; }
.step { margin: 0 0 8px; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.screen h2 { font-size: 28px; font-weight: 700; font-stretch: 90%; letter-spacing: -0.005em; line-height: 1.15; margin: 0 0 16px; }
.screen h2:focus { outline: none; }
.screen > p { max-width: 62ch; }

.items { margin: 0; padding: 0; }
.items div { padding: 14px 0; border-top: 1px solid var(--line); }
.items div:last-child { border-bottom: 1px solid var(--line); }
.items dt { font-weight: 500; }
.items dd { margin: 2px 0 0; color: var(--ink); }

.check { margin: 28px 0 0; padding: 20px; border: 1px solid var(--line); border-radius: 14px; background: var(--soft); }
.check legend { font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); padding: 0 6px; margin-left: -6px; }
.q { margin: 4px 0 12px; font-weight: 500; }
.opt { display: flex; align-items: center; gap: 12px; padding: 12px 14px; margin: 8px 0 0; background: var(--bg);
       border: 1px solid var(--line); border-radius: 10px; cursor: pointer; min-height: 48px; }
.opt input { width: 20px; height: 20px; margin: 0; accent-color: var(--navy); flex: none; }
.opt:has(input:checked) { border-color: var(--navy); }
.check.right .opt:has(input:checked) { border-color: #1e7a46; }
.feedback { margin: 12px 0 0; min-height: 1.4em; font-size: 15px; }
.check.right .feedback { color: #1e7a46; }
.check.wrong .feedback { color: #b42318; }
@media (prefers-color-scheme: dark) {
  .check.right .feedback { color: #6fd39b; }
  .check.wrong .feedback { color: #ff8a80; }
  .check.right .opt:has(input:checked) { border-color: #6fd39b; }
}

.final { text-align: left; }
.button { display: inline-block; margin-top: 8px; background: var(--navy); color: #fff; text-decoration: none; padding: 15px 22px;
          border-radius: 12px; font-weight: 500; }
@media (prefers-color-scheme: dark) { .button { color: #0e1117; } }
.small { font-size: 14px; color: var(--muted); margin-top: 12px; }

.pager { display: none; justify-content: space-between; gap: 12px; padding: 20px 0 8px; border-top: 1px solid var(--line); }
.paged .pager { display: flex; }
.pager button { font: inherit; font-weight: 500; padding: 13px 26px; border-radius: 12px; border: 1px solid var(--line);
                background: var(--bg); color: var(--ink); cursor: pointer; min-width: 110px; }
.pager .next { background: var(--navy); color: #fff; border-color: var(--navy); margin-left: auto; }
@media (prefers-color-scheme: dark) { .pager .next { color: #0e1117; } }
.pager button:disabled { opacity: .35; cursor: not-allowed; }
.pager button:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
.sub { margin: 36px 0 8px; font-size: 19px; font-weight: 500; }

.archive { list-style: none; padding: 0; margin: 32px 0 0; border-top: 1px solid var(--line); }
.archive li { padding: 18px 0; border-bottom: 1px solid var(--line); }

.foot { padding-top: 24px; padding-bottom: 48px; color: var(--muted); font-size: 14px; border-top: 1px solid var(--line); margin-top: 24px; }

@media (max-width: 560px) {
  body { font-size: 16px; }
  h1 { font-size: 32px; }
  main.wrap { padding-top: 28px; }
  nav { gap: 16px; font-size: 14px; }
  nav a { padding: 10px 0; }
  .top-inner { padding-top: 8px; }
  .brand .team { display: none; }
  .screen h2 { font-size: 24px; }
  .check { padding: 16px; }
  .pager { position: sticky; bottom: 0; background: var(--bg); padding-bottom: 14px; }
}

/* Password curtain */
html.locked .shell { visibility: hidden; }
#gate { display: none; }
html.locked #gate { display: flex; position: fixed; inset: 0; z-index: 100; align-items: center; justify-content: center;
  padding: 16px; background: var(--navy); }
@media (prefers-color-scheme: dark) { html.locked #gate { background: #000a3d; } }
.gate-card { width: 100%; max-width: 380px; background: var(--bg); border-radius: 18px; padding: 32px 24px 24px; text-align: center; }
.gate-lens { width: 44px; height: 44px; color: var(--orange); }
.gate-card h1 { font-size: 32px; margin: 10px 0 8px; }
.gate-card p { margin: 0 0 18px; color: var(--muted); }
.gate-card input { width: 100%; font: 600 22px/1 "Figtree", sans-serif; text-align: center; letter-spacing: .08em; padding: 14px;
  border: 1px solid var(--line); border-radius: 12px; background: var(--soft); color: var(--ink); }
.gate-card input:focus-visible, .gate-card button:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.gate-card button { width: 100%; margin-top: 12px; font: 600 17px "Figtree", sans-serif; padding: 14px; border: 0; border-radius: 12px;
  background: var(--orange); color: #fff; cursor: pointer; }
.gate-msg { min-height: 1.4em; margin: 12px 0 0 !important; color: #b42318 !important; font-size: 15px; }
@media (prefers-color-scheme: dark) { .gate-msg { color: #ff8a80 !important; } }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.shake { animation: shake .35s; }
@keyframes shake { 25% { transform: translateX(-6px); } 75% { transform: translateX(6px); } }
@media (prefers-reduced-motion: reduce) { .shake { animation: none; } }

.code { font-family: "Archivo", sans-serif; font-weight: 800; font-stretch: 85%; text-transform: uppercase; font-size: 34px;
  line-height: 1.1; color: var(--orange); background: var(--soft); border: 2px dashed var(--orange); border-radius: 14px;
  padding: 18px 20px; margin: 4px 0 20px; text-align: center; letter-spacing: .02em; }

.typed-in { width: 100%; font: inherit; padding: 13px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg); color: var(--ink); }
.typed-in:focus-visible, .typed-go:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.typed-go { margin-top: 10px; font: inherit; font-weight: 600; padding: 11px 22px; border-radius: 10px; border: 0; background: var(--navy); color: #fff; cursor: pointer; }
@media (prefers-color-scheme: dark) { .typed-go { color: #0e1117; } }
.check.typed.right .typed-in { border-color: #1e7a46; }

.picks { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.pick span { display: block; font-size: 14px; color: var(--muted); margin-bottom: 4px; }
.pick select { width: 100%; font: inherit; padding: 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg); color: var(--ink); }
.pick select:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
@media (max-width: 400px) { .picks { grid-template-columns: 1fr; } }