/* Dimensional Core: tema escuro único, azul-abismo com vidro (P-008). Só fontes do
 * sistema. A página atual do menu é marcada por classe no <body> (T46). */
:root {
  color-scheme: dark;
  --bg: #070B1A; --text: #E8EEFF; --muted: #93A3C8;
  --plasma: #6CF2E0; --plasma-2: #7AA8FF; --link: #9DBBFF; --link-hover: #C8D8FF;
  --violet: #B79CFF; --ink: #06101F;
  --glass: rgba(130, 160, 255, 0.07); --line: rgba(150, 185, 255, 0.16);
  --sans: system-ui, -apple-system, "Segoe UI", "Noto Sans", "Helvetica Neue", sans-serif;
  --mono: ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, monospace;
  --h1: 60px; --lead: 19px; --h2: 32px; --h3: 21px; --pad: 48px;
  --hero-top: 104px; --hero-bottom: 96px; --card-pad: 28px; --card-r: 18px;
  --cols: 2; --dot: 28px;
}

* { box-sizing: border-box; }
html { background: var(--bg); }
body {
  margin: 0; min-height: 100vh; display: flex; flex-direction: column;
  color: var(--text); font-family: var(--sans);
  background:
    radial-gradient(rgba(160, 190, 255, 0.07) 1px, transparent 1.5px) 0 0 / var(--dot) var(--dot),
    radial-gradient(900px 620px at 88% -8%, rgba(88, 120, 255, 0.32), transparent 70%),
    radial-gradient(700px 520px at -5% 38%, rgba(60, 230, 210, 0.13), transparent 70%),
    radial-gradient(900px 600px at 50% 112%, rgba(138, 108, 255, 0.22), transparent 70%),
    var(--bg);
}
main { flex: 1; width: 100%; max-width: 1280px; margin: 0 auto; }
h1, h2, h3, p, figure { margin: 0; }

/* Links no texto (sem classe): padrão, hover, visitado; foco em todos. */
a:where(:not([class])) {
  color: var(--link); text-decoration: underline;
  text-decoration-color: rgba(157, 187, 255, 0.45); text-underline-offset: 4px;
}
a:where(:not([class])):hover { color: var(--link-hover); text-decoration-color: currentColor; }
a:where(:not([class])):visited { color: var(--violet); text-decoration-color: rgba(183, 156, 255, 0.45); }
a:focus-visible { outline: 2px solid var(--plasma); outline-offset: 3px; border-radius: 3px; }

/* Vidro: cabeçalho e botão secundário; sem blur, cor sólida (#0F1630). */
.site-header {
  width: calc(100% - 48px); max-width: 1232px; margin: 16px auto 0;
  min-height: 64px; padding: 0 12px 0 20px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  border-radius: 16px; background: var(--glass); border: 1px solid var(--line);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), 0 8px 32px rgba(0, 0, 0, 0.35);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
}
.brand {
  display: flex; align-items: center; gap: 10px; color: var(--text);
  text-decoration: none; font-size: 19px; font-weight: 700; letter-spacing: 0.01em;
  white-space: nowrap;
}
.accent { color: var(--plasma); }
/* D88/T49: dois grupos no <nav> — links comuns e a área de conta, separados
 * por um filete; "Entrar" vira "Conta" (mesma classe .nav-account) no M03. */
.site-nav { display: flex; align-items: center; gap: 12px; min-width: 0; }
.nav-links, .account-area { list-style: none; margin: 0; padding: 0; display: flex; font-size: 15px; }
.nav-links { flex-wrap: wrap; gap: 4px; }
.nav-links a, .account-area a { display: block; border-radius: 999px; text-decoration: none; }
.nav-links a { padding: 8px 14px; color: var(--muted); border: 1px solid transparent; }
.nav-links a:hover { color: var(--text); background: rgba(130, 160, 255, 0.10); border-color: rgba(150, 185, 255, 0.18); }
.nav-divider { width: 1px; height: 24px; background: rgba(150, 185, 255, 0.22); }
/* Item 1 (P-018): "Entrar"/"Conta" com a mesma largura mínima, texto
 * centrado — a troca do nav.js não empurra os 4 links. */
.account-area a { padding: 8px 18px; color: var(--text); font-weight: 600; background: rgba(130, 160, 255, 0.10); border: 1px solid rgba(150, 185, 255, 0.30); min-width: 88px; text-align: center; box-sizing: border-box; }
.account-area a:hover { background: rgba(130, 160, 255, 0.18); border-color: rgba(150, 185, 255, 0.45); }
.nav-links a:focus-visible, .account-area a:focus-visible { outline-offset: 2px; border-radius: 999px; }
.page-home .nav-links .nav-home, .page-pricing .nav-links .nav-pricing,
.page-leaderboard .nav-links .nav-leaderboard, .page-game .nav-links .nav-game,
.page-login .account-area .nav-login, .page-account .account-area .nav-account {
  color: var(--plasma); background: rgba(108, 242, 224, 0.12);
  border-color: rgba(108, 242, 224, 0.38); box-shadow: 0 0 18px rgba(108, 242, 224, 0.18);
}

.btn {
  display: inline-flex; align-items: center; justify-content: center; height: 50px;
  border-radius: 12px; text-decoration: none;
}
.btn-primary {
  padding: 0 30px; color: var(--ink); font-size: 17px; font-weight: 650;
  background: linear-gradient(135deg, var(--plasma), var(--plasma-2));
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.18) inset, 0 10px 34px rgba(108, 242, 224, 0.30);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #8CF7E8, #97BBFF);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.28) inset, 0 12px 44px rgba(108, 242, 224, 0.50);
}
.btn-primary:focus-visible { outline-color: var(--text); }
.btn-glass {
  padding: 0 24px; color: var(--text); font-size: 16px; font-weight: 550;
  background: rgba(130, 160, 255, 0.08); border: 1px solid rgba(150, 185, 255, 0.22);
}
.btn-glass:hover { background: rgba(130, 160, 255, 0.16); border-color: rgba(150, 185, 255, 0.40); }

.site-footer {
  width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 var(--pad) 32px;
  display: flex; flex-direction: column; gap: 24px;
}
.foot-rule {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(108, 242, 224, 0.45), rgba(183, 156, 255, 0.45), transparent);
}
.foot-row {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  font-size: 14px; color: var(--muted);
}
.foot-name { font-weight: 700; color: var(--text); }
.foot-tag { font: 12px var(--mono); letter-spacing: 0.1em; text-transform: uppercase; }

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .site-header, .card { background: #0F1630; }
}

/* Celular e tablet estreito: mesmos componentes, tamanhos do design móvel. */
@media (max-width: 860px) {
  :root {
    --h1: 38px; --lead: 17px; --h2: 25px; --h3: 19px; --pad: 16px;
    --hero-top: 52px; --hero-bottom: 56px; --card-pad: 20px; --card-r: 16px;
    --cols: 1; --dot: 24px;
  }
  .site-header { width: calc(100% - 24px); margin-top: 12px; padding: 8px 8px 8px 14px; flex-wrap: wrap; row-gap: 4px; }
  .brand { height: 44px; font-size: 18px; }
  .brand svg { width: 28px; height: 28px; }
  /* linha 1 = marca + conta; linha 2 = os quatro links (flex-basis 100%). */
  .site-nav { display: contents; }
  .nav-divider { display: none; }
  .account-area { order: 1; }
  .account-area a { display: flex; align-items: center; height: 44px; padding: 0 18px; }
  .nav-links { order: 2; flex-basis: 100%; margin-left: -6px; gap: 2px; }
  .nav-links a { padding: 11px 12px; }
  .site-footer { gap: 20px; }
  .foot-row { flex-direction: column; align-items: flex-start; gap: 6px; }
}
/* Visual #1 do M15: a marca "Dimensional Core" não cabe com "Entrar" na linha 1
 * abaixo de ~350 px; aqui ela e os links encolhem para o cabeçalho seguir em
 * duas linhas a 320 px. */
@media (max-width: 380px) {
  .site-header { column-gap: 12px; }
  .brand { gap: 8px; font-size: 16px; }
  .brand svg { width: 26px; height: 26px; }
  .nav-links { font-size: 14px; }
  .nav-links a { padding: 11px 8px; }
}