:root {
  --bg: #0b0d14;
  --panel: #131722;
  --line: #232a3a;
  --text: #f2f4f8;
  --muted: #a3abbd;
  --brand: #ffe000;
  --on-brand: #0b0d14;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #fbfbf8;
    --panel: #ffffff;
    --line: #e5e5df;
    --text: #12141b;
    --muted: #5b6273;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 "Poppins", system-ui, -apple-system, "Segoe UI", sans-serif;
}
a { color: inherit; text-decoration-color: var(--brand); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; border-radius: 4px; }

.wrap { max-width: 880px; margin: 0 auto; padding: 0 16px; }

/* header */
.top { border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.mark { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: .02em; text-decoration: none; }
.mark img { width: 32px; height: 32px; border-radius: 6px; }
.top nav { margin-left: auto; display: flex; gap: 18px; font-size: 14px; color: var(--muted); }
.top nav a { text-decoration: none; }
.top nav a[aria-current="page"], .top nav a:hover { color: var(--text); }

/* hero */
.hero { padding: 72px 0 56px; text-align: center; }
.logo-type { margin: 0; font-size: clamp(38px, 9vw, 76px); line-height: 1.05; font-weight: 800; letter-spacing: -.01em; }
.logo-type span { background: var(--brand); color: var(--on-brand); padding: 0 .18em; margin-left: .12em; }
.tagline { margin: 22px 0 0; font-size: clamp(17px, 3.4vw, 22px); color: var(--muted); font-weight: 600; }
.rule { width: 56px; height: 4px; background: var(--brand); margin: 26px auto 0; border: 0; }
.cta { display: inline-block; margin-top: 34px; background: var(--brand); color: var(--on-brand); font-weight: 700;
  padding: 12px 22px; border-radius: 10px; text-decoration: none; }
.cta:hover { filter: brightness(.95); }

/* sections */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; padding-bottom: 56px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 22px; }
.card h2 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

.app { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 26px; margin-bottom: 64px; }
.app h2 { margin: 0 0 10px; font-size: 22px; }
.app p { margin: 0 0 12px; color: var(--muted); }
.app ul { margin: 0 0 14px; padding-left: 20px; color: var(--muted); }

/* legal pages */
.doc { padding: 48px 0 64px; }
.doc h1 { font-size: clamp(28px, 6vw, 40px); line-height: 1.15; margin: 0 0 6px; }
.doc .meta { color: var(--muted); margin: 0 0 32px; font-size: 14px; }
.doc h2 { font-size: 19px; margin: 32px 0 8px; }
.doc p, .doc li { color: var(--muted); }
.doc strong { color: var(--text); }

/* footer */
.foot { border-top: 1px solid var(--line); padding: 24px 0 40px; font-size: 14px; color: var(--muted); }
.foot .wrap { display: flex; gap: 18px; flex-wrap: wrap; }
.foot .spacer { margin-left: auto; }