:root {
  --bg: #070b1a;
  --bg-2: #0d1430;
  --card: #111a3d;
  --text: #eef2ff;
  --muted: #aab4d6;
  --blue: #1f4bff;
  --cyan: #19e3ff;
  --gold: #f5b700;
  --border: #25306a;
  --focus: #f5b700;
  --radius: 16px;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f6ff;
    --bg-2: #e7ecff;
    --card: #ffffff;
    --text: #0b1235;
    --muted: #3b4670;
    --border: #c5cef5;
    --blue: #1a3fd6;
    --cyan: #006f86;
    --gold: #7a5a00;
    --focus: #1a3fd6;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
}
a { color: var(--cyan); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 4px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--gold); color: #000; padding: 8px 12px; z-index: 10; }
.skip:focus { left: 8px; top: 8px; }
.wrap { width: 100%; max-width: 1040px; margin: 0 auto; padding: 0 20px; }
header.top { padding: 16px 0; }
.brand { font-weight: 800; letter-spacing: .02em; font-size: 1.1rem; }
.brand span { color: var(--cyan); }
.hero {
  background: radial-gradient(900px 400px at 80% -10%, rgba(31,75,255,.35), transparent 60%),
              linear-gradient(180deg, var(--bg-2), var(--bg));
  padding: 24px 0 56px;
}
.hero .wrap { display: grid; gap: 32px; align-items: center; }
.eyebrow { color: var(--gold); font-weight: 700; text-transform: uppercase; letter-spacing: .12em; font-size: .8rem; margin: 0 0 8px; }
h1 { font-size: clamp(2rem, 8vw, 3.4rem); line-height: 1.08; margin: 0 0 14px; }
h1 .accent { color: var(--cyan); }
h2 { font-size: clamp(1.4rem, 5vw, 2rem); margin: 0 0 20px; }
.lead { color: var(--muted); font-size: 1.1rem; max-width: 36em; margin: 0 0 22px; }
.badge {
  display: inline-block; padding: 8px 14px; border-radius: 999px;
  border: 1px solid var(--gold); color: var(--gold); font-weight: 700; font-size: .9rem;
}
.hero-art { width: 100%; height: auto; max-width: 520px; justify-self: center; }
section.block { padding: 48px 0; }
section.alt { background: var(--bg-2); }
.grid { display: grid; gap: 16px; grid-template-columns: 1fr; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.card h3 { margin: 0 0 8px; font-size: 1.15rem; }
.card p { margin: 0; color: var(--muted); }
.tag { display: inline-block; margin-top: 12px; padding: 4px 10px; border-radius: 999px; font-size: .8rem; font-weight: 700; border: 1px solid var(--border); color: var(--muted); }
.tag.on { border-color: var(--cyan); color: var(--cyan); }
.download { text-align: center; }
.btn {
  display: inline-block; min-height: 48px; padding: 13px 26px; border-radius: 12px;
  font: inherit; font-weight: 800; border: 2px solid transparent; cursor: pointer;
  background: var(--blue); color: #fff; text-decoration: none;
}
.btn[disabled], .btn[aria-disabled="true"] { background: transparent; border-color: var(--border); color: var(--muted); cursor: not-allowed; }
.note { color: var(--muted); font-size: .95rem; margin-top: 12px; }
footer { padding: 32px 0; border-top: 1px solid var(--border); color: var(--muted); font-size: .9rem; }
.ball-spin { transform-origin: 400px 120px; animation: bob 4s ease-in-out infinite; }
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .ball-spin { animation: none; }
}
@media (min-width: 720px) {
  .hero .wrap { grid-template-columns: 1.1fr 1fr; }
  .grid.three { grid-template-columns: repeat(3, 1fr); }
  section.block { padding: 72px 0; }
}
/* Pagina /j/ */
.join { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px 16px; }
.join .card { max-width: 440px; width: 100%; text-align: center; }
.code {
  font-family: ui-monospace, Consolas, monospace; font-size: clamp(2.2rem, 13vw, 3.4rem);
  font-weight: 800; letter-spacing: .18em; color: var(--cyan); margin: 16px 0; word-break: break-all;
}
.error { color: #ff7b8a; font-weight: 700; }
@media (prefers-color-scheme: light) { .error { color: #b00020; } }
.sr-copy { position: fixed; left: -999px; top: 0; opacity: 0; }