:root {
  --bg: #0b0f12;
  --panel: #0f1317;
  --panel-2: #10151a;
  --text: #e8f3ff;
  --muted: #a9bdd1;
  --line: rgba(255, 255, 255, 0.08);
  --shadow: 0 10px 24px rgba(0, 0, 0, 0.45), inset 0 0 18px rgba(0, 225, 255, 0.07);
  --radius: 14px;
  --rbx-accent: #00f0ff;
  --rbx-accent-2: #00c2d1;
  --ff-accent: #ff6a00;
  --ff-accent-2: #ff3d00;
}

/* ===== Base ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 system-ui, -apple-system, Segoe UI, Roboto;
}
img { max-width: 100%; display: block; }
a { color: #66e2ff; text-decoration: none; }
a:hover { color: #a3eeff; }

/* ===== Layout ===== */
.layout { width: min(1200px, 94%); margin: 16px auto; }
.grid { display: grid; gap: 14px; grid-template-columns: repeat(12, 1fr); }
.col-8 { grid-column: span 8; }
.col-4 { grid-column: span 4; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px;
}

/* ===== NAV ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: linear-gradient(180deg, rgba(0, 0, 0, .75), rgba(0, 0, 0, .35));
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.nav__wrap {
  width: min(1200px, 94%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 0;
}
.nav__logo {
  color: var(--text);
  font-weight: 800;
  padding: 8px 12px;
  border-radius: 10px;
  background: rgba(0, 0, 0, .25);
  border: 1px solid var(--line);
}
.nav__menu { list-style: none; display: flex; gap: 8px; align-items: center; }
.nav__menu > li > a,
.nav__menu summary {
  display: block;
  color: var(--text);
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid transparent;
}
.nav__menu > li > a:hover,
.nav__menu summary:hover {
  background: var(--panel);
  border-color: var(--line);
  box-shadow: var(--shadow);
}
.nav__submenu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 240px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 8px;
  display: none;
}
details[open] .nav__submenu { display: block; }
.nav__submenu a {
  display: block;
  padding: 10px;
  border-radius: 8px;
  color: var(--text);
}
.nav__submenu a:hover { background: var(--panel-2); }

/* ===== Header ===== */
.header-gamer {
  padding: 28px 3% 22px;
  text-align: center;
  border-bottom: 2px solid var(--rbx-accent);
  background: radial-gradient(ellipse at top, rgba(0, 225, 255, .14), rgba(0, 0, 0, 0) 62%), linear-gradient(#0b0f12, var(--bg));
}
.header-gamer h1 {
  font-size: clamp(1.6rem, 1.4rem + 1.5vw, 2.2rem);
  text-shadow: 0 0 10px rgba(0, 225, 255, .55);
}
.tagline { color: var(--muted); }
.social {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin: 8px 0 0;
}
.social a {
  display: inline-block;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(0, 0, 0, .2);
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(0, 0, 0, .25), rgba(0, 0, 0, .6));
  margin-top: 20px;
}
.footer__content {
  width: min(1200px, 94%);
  margin: 0 auto;
  padding: 16px 0;
  text-align: center;
  color: var(--muted);
}
.footer__links a { color: var(--text); }

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .grid { grid-template-columns: 1fr; }
  .col-8, .col-4 { grid-column: 1; }
  .nav__menu { flex-wrap: wrap; }
}