:root {
  --navy: #0f1c2e;
  --navy-2: #1a2b44;
  --gold: #edad2b;
  --gold-pale: #fdf5e2;
  --gold-line: #f2d48c;
  --ink: #1b2533;
  --muted: #5b6676;
  --line: #e4e7ec;
  --bg: #f6f7f9;
  --card: #ffffff;
  --right: #15803d;
  --wrong: #b91c1c;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: inherit; }
h1, h2, h3 { line-height: 1.25; margin: 0; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }

/* Nav */
.nav { background: #fff; border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
.nav-in { display: flex; align-items: center; gap: 24px; height: 60px; }
.logo { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 18px; text-decoration: none; color: var(--navy); }
.links { display: flex; gap: 20px; flex: 1; }
.links a, .signin { text-decoration: none; color: var(--muted); font-size: 15px; font-weight: 500; }
.links a:hover, .signin:hover { color: var(--navy); }
.nav-cta { display: flex; align-items: center; gap: 16px; margin-left: auto; }

/* Buttons */
.btn { display: inline-block; text-decoration: none; font-weight: 700; border-radius: 8px; padding: 10px 18px; font-size: 15px; text-align: center; }
.btn.gold { background: var(--gold); color: var(--navy); }
.btn.gold:hover { background: #f4bd4c; }
.btn.navy { background: var(--navy); color: #fff; }
.btn.navy:hover { background: var(--navy-2); }
.btn.block { display: block; width: 100%; }

/* Header */
.hero { background: var(--navy); color: #fff; padding: 28px 0 32px; }
.crumbs { font-size: 14px; color: #aeb9c9; display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.crumbs a { color: #d6deea; text-decoration: none; }
.crumbs a:hover { text-decoration: underline; }
.hero h1 { font-size: clamp(28px, 5vw, 40px); font-weight: 800; letter-spacing: -0.01em; }
.court { color: #c9d3e0; margin: 8px 0 0; }
.chips { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 16px; }
.chip { color: #fff; font-size: 13px; font-weight: 700; padding: 4px 12px; border-radius: 999px; text-decoration: none; }
.assigned { font-size: 14px; color: var(--gold); font-weight: 600; }

/* Layout */
.grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 28px; padding-top: 28px; padding-bottom: 48px; }
.main { display: flex; flex-direction: column; gap: 24px; min-width: 0; }
.side { display: flex; flex-direction: column; gap: 24px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 24px; }
.card h2 { font-size: 22px; font-weight: 800; color: var(--navy); margin-bottom: 12px; }
.card h3 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--muted); margin: 22px 0 6px; }
.card p { margin: 0 0 8px; }
.eyebrow { font-size: 12px; text-transform: uppercase; letter-spacing: 0.16em; font-weight: 800; color: #b07a10; margin-bottom: 6px; }
.rule { background: var(--gold-pale); border: 1px solid var(--gold-line); border-left: 4px solid var(--gold); border-radius: 8px; padding: 14px 16px; font-weight: 600; }
.rule p { margin: 0; }

/* Quiz */
.q { font-weight: 600; font-size: 17px; }
.choices { display: flex; flex-direction: column; gap: 10px; margin: 14px 0; }
.choice { display: flex; gap: 12px; align-items: flex-start; text-align: left; width: 100%; font: inherit; color: inherit; background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; cursor: pointer; }
.choice:hover:not(:disabled) { border-color: var(--navy); }
.choice:disabled { cursor: default; }
.letter { flex: none; width: 26px; height: 26px; border-radius: 50%; background: var(--bg); display: grid; place-items: center; font-weight: 700; font-size: 13px; }
.choice.right { border-color: var(--right); background: #effaf3; }
.choice.right .letter { background: var(--right); color: #fff; }
.choice.wrong { border-color: var(--wrong); background: #fdf1f1; }
.choice.wrong .letter { background: var(--wrong); color: #fff; }
.feedback { font-weight: 700; }
.feedback.right { color: var(--right); }
.feedback.wrong { color: var(--wrong); }
.explain { color: var(--muted); }
.more { display: inline-block; margin-top: 6px; font-weight: 700; color: var(--navy); }

/* Cold call */
.coldcall { background: var(--navy); color: #fff; border-radius: 12px; padding: 24px; }
.coldcall .eyebrow { color: var(--gold); }
.coldcall h2 { font-size: 22px; font-weight: 800; }
.coldcall blockquote { margin: 14px 0 18px; padding: 14px 16px; border-left: 4px solid var(--gold); background: var(--navy-2); border-radius: 6px; font-size: 17px; }

/* Locked */
.blur { filter: blur(5px); user-select: none; pointer-events: none; color: var(--muted); }
.locked .btn { margin-top: 18px; }

/* Sidebar */
.signup-card { background: var(--navy); color: #fff; border-radius: 12px; padding: 24px; position: sticky; top: 84px; }
.signup-card h2 { font-size: 20px; font-weight: 800; margin-bottom: 12px; }
.signup-card ul { margin: 0 0 18px; padding: 0; list-style: none; }
.signup-card li { padding-left: 24px; position: relative; margin-bottom: 8px; color: #d6deea; }
.signup-card li::before { content: "\2713"; position: absolute; left: 0; color: var(--gold); font-weight: 800; }
.fine { text-align: center; font-size: 13px; color: #aeb9c9; margin: 8px 0 0; }
.side-more h2 { font-size: 17px; }
.side-more ul { list-style: none; padding: 0; margin: 0 0 12px; }
.side-more li { border-top: 1px solid var(--line); }
.side-more li a { display: block; padding: 9px 0; text-decoration: none; }
.side-more li a:hover { color: #b07a10; }
.all { font-weight: 700; font-size: 14px; color: var(--navy); }

/* Index */
.index { display: flex; flex-direction: column; gap: 20px; padding-top: 28px; padding-bottom: 48px; }
.subject h2 { display: flex; align-items: center; gap: 10px; }
.dot { width: 12px; height: 12px; border-radius: 50%; flex: none; }
.count { font-size: 14px; font-weight: 600; color: var(--muted); }
.cols { columns: 3 240px; column-gap: 24px; list-style: none; margin: 0; padding: 0; }
.cols li { break-inside: avoid; padding: 5px 0; }
.cols a { text-decoration: none; font-weight: 500; }
.cols a:hover { color: #b07a10; text-decoration: underline; }
.yr { color: var(--muted); font-size: 13px; }

/* Footer */
.foot { border-top: 1px solid var(--line); background: #fff; color: var(--muted); font-size: 14px; }
.foot-in { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding-top: 20px; padding-bottom: 20px; flex-wrap: wrap; }
.foot nav { display: flex; gap: 18px; }
.foot a { text-decoration: none; }
.foot a:hover { color: var(--navy); }

@media (max-width: 900px) {
  .grid { grid-template-columns: minmax(0, 1fr); }
  .signup-card { position: static; }
}
@media (max-width: 720px) {
  .links { display: none; }
  .nav-in { gap: 12px; }
  .nav-cta { gap: 12px; }
  .nav-cta .btn { padding: 8px 12px; font-size: 14px; }
  .card, .coldcall, .signup-card { padding: 18px; }
}
@media (max-width: 360px) {
  .logo span { display: none; }
}