/* =========================================================
   ALIGNMENT: the hub (choice of game and angle)
   Shared tokens: the same palette as the games.
   ========================================================= */
:root {
  --bg: #090c13;
  --panel: #0f141d;
  --panel-2: #131a26;
  --line: rgba(255, 255, 255, .08);
  --text: #e6e9ef;
  --muted: #8a94a8;
  --accent: #5ee1ff;
  --ok: #6be3a4;
  --warn: #ffb547;
  --hot: #ff5f6d;
  --neg: #b49cff;
  --mono: 'JetBrains Mono', ui-monospace, Consolas, monospace;
  --sans: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --radius: 14px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: radial-gradient(ellipse at 50% -10%, #142033, var(--bg) 60%) fixed, var(--bg);
  color: var(--text);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}

.hub { max-width: 1100px; margin: 0 auto; padding: 40px 24px 32px; }

.hub-head h1 { margin: 0; font: 800 15px var(--mono); letter-spacing: .5em; color: var(--accent); }
.hub-q { margin: 14px 0 0; font: 800 clamp(26px, 4.4vw, 40px)/1.15 var(--sans); letter-spacing: -.01em; }
.hub-lead { max-width: 760px; margin: 14px 0 0; font: 400 16px/1.6 var(--sans); color: #b8c0cf; }
.hub-lead em { color: var(--text); font-style: normal; font-weight: 600; }

.games { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 30px; }
.game {
  display: flex; flex-direction: column;
  padding: 20px; border-radius: var(--radius);
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line);
}
.game-head { display: flex; align-items: center; gap: 12px; }
.game-icon { font-size: 26px; line-height: 1; }
.game-head h2 { margin: 0; font: 700 19px var(--sans); }
.badge {
  margin-left: auto; padding: 3px 8px; border-radius: 99px;
  font: 600 11px var(--mono); text-transform: uppercase; letter-spacing: .08em;
  color: var(--ok); border: 1px solid rgba(107, 227, 164, .4);
}
.game-line { flex: 1; margin: 10px 0 16px; font: 400 14px/1.55 var(--sans); color: #aeb6c6; }

.angle-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.angle {
  display: flex; flex-direction: column; gap: 3px;
  padding: 10px 10px; border-radius: 10px;
  border: 1px solid var(--line); background: rgba(255, 255, 255, .02);
  color: var(--text); text-decoration: none;
  transition: border-color .15s, background .15s, transform .15s;
}
.angle strong { font: 600 13px var(--sans); }
.angle span { font: 500 11px var(--mono); color: var(--muted); }
.angle:hover, .angle:focus-visible { transform: translateY(-1px); outline: none; }
.angle-helps:hover, .angle-helps:focus-visible { border-color: var(--ok); background: rgba(107, 227, 164, .07); }
.angle-balance:hover, .angle-balance:focus-visible { border-color: var(--accent); background: rgba(94, 225, 255, .07); }
.angle-debt:hover, .angle-debt:focus-visible { border-color: var(--hot); background: rgba(255, 95, 109, .07); }
.angle.angle-measured { border-style: dashed; }
.angle.angle-measured:hover, .angle.angle-measured:focus-visible { border-color: var(--neg); background: rgba(180, 156, 255, .08); }
.angle.off { opacity: .4; pointer-events: none; }

.angles-help { margin-top: 34px; }
.angles-help h2 { margin: 0 0 10px; font: 600 12px var(--mono); text-transform: uppercase; letter-spacing: .14em; color: var(--muted); }
.angles-help ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 8px 24px; }
.angle-help { display: flex; flex-direction: column; gap: 2px; padding-left: 12px; border-left: 3px solid var(--line); }
.angle-help strong { font: 600 14px var(--sans); }
.angle-help span { font: 400 13px/1.5 var(--sans); color: #aeb6c6; }
.angle-help.angle-helps { border-color: var(--ok); }
.angle-help.angle-balance { border-color: var(--accent); }
.angle-help.angle-debt { border-color: var(--hot); }
.angle-help.angle-measured { border-color: var(--neg); }

.hub-foot { margin-top: 34px; padding-top: 16px; border-top: 1px solid var(--line); }
.hub-foot p { margin: 0; font: 400 12px/1.6 var(--sans); color: var(--muted); }
.hub-foot a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }
.hub-foot a:hover, .hub-foot a:focus-visible { color: var(--text, inherit); }

@media (max-width: 760px) {
  .hub { padding: 26px 16px 24px; }
  .games, .angles-help ul { grid-template-columns: 1fr; }
  .angle-row { grid-template-columns: 1fr 1fr; }
}