/* Seasonal themes — applied via [data-season] on the app shell.
   Kept subtle: palette + glow tint only, never distracting. */

[data-season="spring"] {
  --accent: #e8749a;
  --accent-soft: #ffe1ec;
  --accent-deep: #c14b74;
  --gold: #f2b6c8;
}
[data-season="spring"] .season-glow { background: radial-gradient(circle at 50% -10%, rgba(232,116,154,0.25), transparent 60%); }

[data-season="summer"] {
  --accent: #1f9d6b;
  --accent-soft: #d7f5e6;
  --accent-deep: #14724c;
  --gold: #6fd8a8;
}
[data-season="summer"] .season-glow { background: radial-gradient(circle at 50% -10%, rgba(31,157,107,0.22), transparent 60%); }

[data-season="autumn"] {
  --accent: #d1701f;
  --accent-soft: #ffe6cc;
  --accent-deep: #9c4d10;
  --gold: #e8a33e;
}
[data-season="autumn"] .season-glow { background: radial-gradient(circle at 50% -10%, rgba(209,112,31,0.24), transparent 60%); }

[data-season="winter"] {
  --accent: #2e6fd6;
  --accent-soft: #e2edff;
  --accent-deep: #1d4d9c;
  --gold: #9fc2f2;
}
[data-season="winter"] .season-glow { background: radial-gradient(circle at 50% -10%, rgba(46,111,214,0.22), transparent 60%); }

/* Default rising-sun glow when no season class is present */
.season-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(circle at 50% -10%, rgba(200,16,46,0.18), transparent 60%);
}

/* New Year / Hatsu Basho special accent (applied via [data-hatsu="true"]) */
[data-hatsu="true"] {
  --accent: #c8102e;
  --gold: #d9b45c;
}

/* Sakura particle layer */
.sakura-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 5;
  overflow: hidden;
}
/* .petal base rules now live in main.css (pixel sprite backgrounds) */

/* Salt easter-egg particles (subtle, before live tournaments) */
.salt-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 5;
  overflow: hidden;
}
.salt-grain {
  position: absolute;
  top: -5%;
  width: 3px; height: 3px;
  background: #ffffff;
  border-radius: 50%;
  opacity: 0.7;
}