:root {
  color-scheme: light dark;
  --navy: #0b1c55;
  --blue: #0758d9;
  --electric: #008cff;
  --orange: #ff6a00;
  --cyan: #00c8ed;
  --paper: #ffffff;
  --ink: #14234a;
  --muted: #526482;
  --line: #d5dfed;
  --bg: #f3faff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 10% 8%, rgb(0 200 237 / .16), transparent 25rem),
    radial-gradient(circle at 90% 12%, rgb(255 106 0 / .13), transparent 24rem),
    var(--bg);
  color: var(--ink);
  font: 16px/1.7 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: var(--blue); }
a:hover { color: var(--orange); }
.shell { width: min(900px, calc(100% - 32px)); margin: 0 auto; padding: 32px 0 64px; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.logo { display: block; width: 220px; height: auto; }
.back {
  display: inline-flex;
  padding: 10px 16px;
  border: 2px solid var(--electric);
  border-radius: 14px;
  background: var(--paper);
  color: var(--navy);
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 3px 0 #b8c7db;
}
.card {
  border: 2px solid var(--line);
  border-radius: 28px;
  background: rgb(255 255 255 / .94);
  padding: clamp(24px, 5vw, 52px);
  box-shadow: 0 8px 0 #c5d1e0;
}
.eyebrow { margin: 0 0 8px; color: var(--electric); font-size: .75rem; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; }
h1, h2 { color: var(--navy); line-height: 1.15; }
h1 { margin: 0; font-size: clamp(2.3rem, 7vw, 4rem); letter-spacing: -.04em; }
h2 { margin: 2.2rem 0 .5rem; font-size: 1.35rem; }
p, li { color: var(--muted); font-weight: 550; }
.updated { margin: 12px 0 28px; font-size: .9rem; }
.notice {
  border-left: 5px solid var(--orange);
  border-radius: 12px;
  background: #fff4e9;
  padding: 14px 18px;
  color: var(--navy);
  font-weight: 700;
}
.legal-nav { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 34px; padding-top: 24px; border-top: 1px solid var(--line); }
.legal-nav a { font-weight: 800; }
footer { margin-top: 28px; text-align: center; color: var(--muted); font-size: .85rem; }

@media (prefers-color-scheme: dark) {
  :root { --paper: #17213f; --ink: #f2f6ff; --muted: #c0cbe0; --line: #354363; --bg: #0b1533; }
  .card { background: rgb(18 29 57 / .96); box-shadow: 0 8px 0 #070e24; }
  h1, h2 { color: #fff; }
  .back { background: #17213f; color: #fff; box-shadow: 0 3px 0 #070e24; }
  .notice { background: #2d2130; color: #fff; }
}

@media (max-width: 560px) {
  .topbar { align-items: flex-start; flex-direction: column; }
  .logo { width: 190px; }
}