/* SPDX-License-Identifier: AGPL-3.0-only */
/* What the hub and every game share: Muldle's night-sky palette, the page
   background and the footer. A game adds its own stylesheet after this. */

:root {
  --bg: #0b0e1a;
  --bg2: #121631;
  --border: #3a3f5c;
  --text: #e8eaf2;
  --dim: #9aa0b8;
  --accent: #7ea6e0;
  --good: #4c9a4c;
  --warn: #b8a038;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

[hidden] { display: none !important; }

body {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  font-family: "Segoe UI", system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
}

/* a faint star field (a fixed layer: background-attachment: fixed on body
   is broken on iOS Safari) */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    radial-gradient(1px 1px at 12% 22%, #fff8 50%, transparent 50%),
    radial-gradient(1px 1px at 78% 12%, #fff6 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 55% 35%, #fff9 50%, transparent 50%),
    radial-gradient(1px 1px at 32% 68%, #fff5 50%, transparent 50%),
    radial-gradient(1px 1px at 88% 55%, #fff7 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 8% 85%, #fff6 50%, transparent 50%),
    radial-gradient(1px 1px at 66% 90%, #fff5 50%, transparent 50%),
    linear-gradient(180deg, #0b0e1a 0%, #141a3a 100%);
}

a { color: var(--accent); }

.link-button {
  background: none;
  border: none;
  color: var(--accent);
  font: inherit;
  text-decoration: underline;
  cursor: pointer;
}

.foot {
  margin-top: auto;
  padding: 1.5rem 1rem 1rem;
  max-width: 40rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--dim);
  line-height: 1.5;
}

/* The way back to the hub, top left in every game: the hub's star and its
   name, small and dim (user, 08-10-2026). The star
   is a mask, so it takes the text's colour. */
.hub-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--dim);
  font-size: 0.85rem;
  text-decoration: none;
}
.hub-mark::before {
  content: "";
  flex: none;
  width: 1em;
  height: 1em;
  background: currentColor;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 64 64'%3E%3Cpath d='M32 8l6 15.5 16.5 1.2-12.7 10.6 4 16.2L32 42.6l-13.8 8.9 4-16.2L9.5 24.7l16.5-1.2z'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 64 64'%3E%3Cpath d='M32 8l6 15.5 16.5 1.2-12.7 10.6 4 16.2L32 42.6l-13.8 8.9 4-16.2L9.5 24.7l16.5-1.2z'/%3E%3C/svg%3E") center / contain no-repeat;
}
.hub-mark:hover, .hub-mark:focus-visible { color: var(--text); }
/* Forced colours (Windows High Contrast) would paint the star's background
   in Canvas, so it would vanish, and with it a phone's star-only link: keep
   it in the system's link colour. */
@media (forced-colors: active) {
  .hub-mark::before { forced-color-adjust: none; background: LinkText; }
}