/* =====================================================================
   geecher.com - thème commun (réutilisable pour tous les jeux et pages)
   Ambiance sombre + glassmorphism. Tout part des variables ci-dessous :
   pour changer l'allure du site, on ne modifie que cette section.
   ===================================================================== */

:root {
  /* Couleurs de base */
  --bg: #141317;
  --text: #eeecf7;
  --muted: #bab7cc;
  --danger: #ff8a8a;

  /* Couleurs de marque (lueurs du fond, boutons, accents) */
  --violet: #d046e6;      /* magenta (cristaux) */
  --indigo: #5b5bff;      /* bleu électrique */
  --violet-soft: #ee9af4;
  --green: #1fc7b8;       /* turquoise glacé */
  --yellow: #ffc928;
  --accent: var(--violet);

  /* Verre (glassmorphism) */
  --glass-bg: rgba(255, 255, 255, .06);
  --glass-bg-hover: rgba(255, 255, 255, .11);
  --glass-bg-dark: rgba(14, 12, 20, .55);
  --glass-border: rgba(255, 255, 255, .14);
  --glass-blur: blur(18px) saturate(150%);
  --glass-shadow: 0 10px 34px rgba(0, 0, 0, .38), inset 0 1px 0 rgba(255, 255, 255, .12);

  /* Rayons, espacements, en-tête */
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-pill: 999px;
  --header-h: 4.75rem; /* hauteur réservée à l'en-tête flottant (barre + marges) */
  --page-w: 1100px;

  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

/* Sans cette règle, les classes qui définissent "display" l'emporteraient sur l'attribut hidden */
[hidden] { display: none !important; }

html { background: var(--bg); color-scheme: dark; }
html, body { margin: 0; min-height: 100%; }

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: transparent; /* le fond est dessiné par .bg-space */
  color: var(--text);
  font-family: var(--font);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--violet-soft); }
a:hover { color: #fff; }

h1 { margin: 0 0 .5rem; font-size: 1.7rem; letter-spacing: -.01em; }
h2 { margin: 1.5rem 0 .5rem; font-size: 1.05rem; }

::selection { background: rgba(208, 70, 230, .55); }

/* ---------- Fond spatial ---------- */
/* Un calque fixe : étoiles + trois lueurs floues (vert, pourpre, jaune) qui dérivent lentement.
   Plein éclat sur l'accueil (body.home), plus discret ailleurs. */

.bg-space {
  position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none;
  background: radial-gradient(120% 90% at 50% 0%, #17151c 0%, var(--bg) 65%);
}
.bg-space::before { /* étoiles */
  content: ""; position: absolute; inset: 0;
  background-image:
    radial-gradient(1.2px 1.2px at 12% 18%, #fff, transparent),
    radial-gradient(1px 1px at 27% 72%, #fff, transparent),
    radial-gradient(1.5px 1.5px at 41% 33%, #fff, transparent),
    radial-gradient(1px 1px at 58% 82%, #fff, transparent),
    radial-gradient(1.2px 1.2px at 69% 14%, #fff, transparent),
    radial-gradient(1px 1px at 83% 56%, #fff, transparent),
    radial-gradient(1.5px 1.5px at 92% 88%, #fff, transparent),
    radial-gradient(1px 1px at 7% 91%, #fff, transparent),
    radial-gradient(1px 1px at 76% 38%, #fff, transparent),
    radial-gradient(1.2px 1.2px at 34% 8%, #fff, transparent);
  background-size: 520px 520px;
  opacity: .4;
  animation: twinkle 7s ease-in-out infinite alternate;
}
.bg-space i { /* lueurs : halos discrets, chacun avec sa propre trajectoire et sa durée */
  position: absolute; border-radius: 50%; filter: blur(110px); opacity: .16;
  will-change: transform;
}
.bg-space i:nth-child(1) { width: 38vmax; height: 38vmax; left: -6vmax; top: -8vmax; background: var(--green); animation: halo-a 47s ease-in-out infinite; }
.bg-space i:nth-child(2) { width: 42vmax; height: 42vmax; right: -10vmax; top: 12vh; background: var(--violet); animation: halo-b 61s ease-in-out infinite; }
.bg-space i:nth-child(3) { width: 30vmax; height: 30vmax; left: 34vw; bottom: -14vmax; background: var(--yellow); opacity: .1; animation: halo-c 73s ease-in-out infinite; }

body.home .bg-space i { opacity: .2; }
body.home .bg-space i:nth-child(3) { opacity: .12; }
body:not(.home) .bg-space i { opacity: .12; }
body:not(.home) .bg-space i:nth-child(3) { opacity: .07; }

/* Trajectoires fermées (le dernier point = le premier) : la boucle est continue, sans à-coup */
@keyframes halo-a { 0%, 100% { transform: translate(0, 0) scale(1); } 25% { transform: translate(7vw, 5vh) scale(1.06); } 50% { transform: translate(10vw, -3vh) scale(.96); } 75% { transform: translate(3vw, 7vh) scale(1.04); } }
@keyframes halo-b { 0%, 100% { transform: translate(0, 0) scale(1); } 30% { transform: translate(-8vw, 6vh) scale(.95); } 60% { transform: translate(-4vw, -5vh) scale(1.07); } 80% { transform: translate(-9vw, 1vh) scale(1); } }
@keyframes halo-c { 0%, 100% { transform: translate(0, 0) scale(1); } 20% { transform: translate(-7vw, -4vh) scale(1.05); } 55% { transform: translate(6vw, -7vh) scale(.94); } 80% { transform: translate(8vw, 2vh) scale(1.03); } }
@keyframes twinkle { to { opacity: .22; } }

@media (prefers-reduced-motion: reduce) {
  .bg-space i, .bg-space::before { animation: none; }
}

/* Quand la scène WebGL (space-bg.js) tourne, elle remplace le fond CSS ci-dessus */
.bg-space-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.bg-space.gl i, .bg-space.gl::before { display: none; }

/* ---------- Verre : classe utilitaire + composants ---------- */

.glass,
.card,
.site-header,
.site-footer-pill {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
}

.card {
  width: 100%;
  max-width: 520px;
  padding: 1.9rem;
  border-radius: var(--r-lg);
}

.lead { margin: 0 0 1.25rem; color: var(--muted); }
.muted { color: var(--muted); font-weight: normal; }
.note { margin: 1.25rem 0 0; font-size: .85rem; color: var(--muted); }
.code { font-family: ui-monospace, monospace; letter-spacing: .08em; color: var(--green); }

.status { margin: 0 0 1rem; color: var(--muted); font-size: .9rem; }
.error { margin: .75rem 0 0; color: var(--danger); font-size: .9rem; }
.error:empty { display: none; }

/* Formulaires */
label { display: block; margin-bottom: .35rem; font-size: .9rem; color: var(--muted); }

input {
  width: 100%;
  padding: .65rem .9rem;
  border: 1px solid var(--glass-border);
  border-radius: var(--r-md);
  background: rgba(0, 0, 0, .28);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, .35);
  color: var(--text);
  font: inherit;
  transition: border-color .15s, box-shadow .15s;
}
input::placeholder { color: rgba(255, 255, 255, .35); }
input:focus { outline: none; border-color: var(--violet); box-shadow: 0 0 0 3px rgba(208, 70, 230, .3); }

/* Boutons */
button, .btn {
  display: inline-block;
  padding: .65rem 1.2rem;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: var(--r-pill);
  background: linear-gradient(135deg, #e04ff0, #5b5bff);
  box-shadow: 0 6px 22px rgba(150, 70, 240, .38), inset 0 1px 0 rgba(255, 255, 255, .28);
  color: #fff;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform .12s, box-shadow .15s, background .15s;
}
button:hover:not(:disabled), .btn:hover { transform: translateY(-1px); box-shadow: 0 10px 28px rgba(150, 70, 240, .5), inset 0 1px 0 rgba(255, 255, 255, .3); color: #fff; }
button:active:not(:disabled) { transform: translateY(0); }
button:disabled { opacity: .45; cursor: not-allowed; }
button:focus-visible, .btn:focus-visible, a:focus-visible { outline: 2px solid var(--green); outline-offset: 2px; }

button.secondary {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .1);
  color: var(--text);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
}
button.secondary:hover:not(:disabled) { background: var(--glass-bg-hover); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .16); }

form button, #start, #leave, #end-game { margin-top: 1rem; width: 100%; }

.row { display: flex; gap: .5rem; }
.row button { width: auto; margin: 0; flex-shrink: 0; }
#rename-form { margin-top: .75rem; }

/* Listes et étiquettes */
.players { margin: 0; padding: 0; list-style: none; }
.players li {
  display: flex; align-items: center; gap: .5rem;
  padding: .55rem .85rem; margin-bottom: .4rem;
  background: rgba(255, 255, 255, .05);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-md);
}
.players li.offline { opacity: .55; }

.tag {
  padding: .05rem .6rem;
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .1);
  color: var(--muted);
  font-size: .75rem;
}

.result {
  margin: 0 0 1rem; padding: .7rem .95rem; border-radius: var(--r-md);
  background: rgba(255, 211, 77, .12); border: 1px solid rgba(255, 211, 77, .45);
  color: #ffe58f; font-weight: 600;
}

/* ---------- Structure de page : en-tête flottant, contenu, pied ---------- */

.site-header {
  position: fixed; z-index: 5;
  top: .75rem; left: 50%; transform: translateX(-50%);
  width: min(var(--page-w), calc(100% - 1.5rem));
  height: 3.5rem;
  border-radius: var(--r-pill); /* barre en pilule */
}
.site-nav {
  display: flex; align-items: center; gap: .25rem;
  height: 100%; padding: 0 .55rem 0 .6rem;
}
.site-logo { display: flex; align-items: center; margin-right: .6rem; border-radius: 50%; }
.site-logo img { display: block; height: 2.3rem; width: auto; filter: drop-shadow(0 0 8px rgba(238, 154, 244, .45)); }
.site-nav a:not(.site-logo) {
  padding: .4rem 1rem; border-radius: var(--r-pill);
  color: var(--muted); text-decoration: none; font-weight: 600;
  transition: background .15s, color .15s;
}
.site-nav a:not(.site-logo):hover { color: #fff; background: var(--glass-bg-hover); }
.site-nav a[aria-current="page"] { color: #fff; background: rgba(208, 70, 230, .3); box-shadow: inset 0 0 0 1px rgba(238, 154, 244, .4); }

.site-main {
  flex: 1;
  display: grid; place-items: center;
  padding: calc(var(--header-h) + 1.5rem) 1rem 1.5rem;
}
.site-main.wide { place-items: start center; }

.site-footer {
  padding: 1.1rem 1rem 1.4rem; text-align: center;
  color: var(--muted); font-size: .85rem;
}
.site-footer p { margin: 0; }