/* 2048 Violet — shares arcade.css theme. */
.g-body { min-height: 100svh; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: max(10px, env(safe-area-inset-top)) 14px 0; max-width: 520px; margin: 0 auto; }
.icon-btn { cursor: pointer; font: inherit; font-size: 1.3rem; line-height: 1; width: 44px; height: 44px; flex: none;
  display: inline-flex; align-items: center; justify-content: center; color: var(--ink); background: rgba(32,16,64,0.55);
  border: 1.5px solid var(--panel-brd); border-radius: 50%; text-decoration: none; }
.g-title { font-size: 1.4rem; font-weight: 900; margin: 0; letter-spacing: -1px; flex: 1; }
.g-title span { color: var(--neon); }
.scores { display: flex; gap: 8px; }
.sc { background: rgba(32,16,64,0.6); border: 1.5px solid var(--panel-brd); border-radius: 12px; padding: 4px 12px; text-align: center; min-width: 62px; }
.sc span { display: block; font-size: .6rem; font-weight: 800; letter-spacing: 1px; color: var(--ink-mut); }
.sc b { font-size: 1.1rem; color: #fff; font-variant-numeric: tabular-nums; }

.g-wrap { max-width: 520px; margin: 0 auto; padding: 14px; }
.g-bar { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 12px; }
.g-hint { color: var(--ink-dim); font-size: .85rem; margin: 0; } .btn.small { font-size: .85rem; padding: .5em 1em; }

.board { position: relative; width: 100%; max-width: 460px; margin: 0 auto; aspect-ratio: 1/1;
  background: rgba(32,16,64,0.6); border: 1.5px solid var(--panel-brd); border-radius: 16px; padding: 3%; touch-action: none; }
.grid-bg, .tiles { position: absolute; inset: 3%; display: grid; grid-template-columns: repeat(4, 1fr); grid-template-rows: repeat(4, 1fr); gap: 3.2%; }
.cell { background: rgba(11,4,23,0.5); border-radius: 10px; }
.tiles { pointer-events: none; }
.tile { border-radius: 10px; display: flex; align-items: center; justify-content: center; font-weight: 900;
  font-size: clamp(1.1rem, 6vw, 2rem); color: #fff; box-shadow: inset 0 1px 0 rgba(255,255,255,0.25);
  transition: transform .12s ease; }
.tile.new { animation: appear .18s ease; } .tile.merge { animation: merge .18s ease; }
@keyframes appear { from { transform: scale(0.2); } to { transform: scale(1); } }
@keyframes merge { 0% { transform: scale(1); } 50% { transform: scale(1.18); } 100% { transform: scale(1); } }

.overlay { position: fixed; inset: 0; z-index: 50; display: flex; align-items: center; justify-content: center; padding: 20px;
  background: rgba(8,3,18,0.6); backdrop-filter: blur(4px); } .overlay.hidden { display: none; }
.panel.over-card { width: 100%; max-width: 360px; padding: 26px 24px; text-align: center; } .over-card h2 { font-size: 1.6rem; }
.win-stats { color: var(--ink-dim); margin: 6px 0 16px; } .win-stats b { color: var(--neon); }
.submit-row .btn { width: 100%; margin-top: 4px; }
.nick-row { display: flex; gap: 8px; } .nick-row .field { flex: 1; } .nick-row .icon-btn { flex: none; border-radius: 12px; }
.nick-hint { color: var(--ink-mut); font-size: .78rem; margin: 6px 0 14px; text-align: left; } .nick-hint.bad { color: var(--pink); }
.submit-done { color: #7cf29a; font-weight: 800; margin: 10px 0; }
.over-btns { display: flex; gap: 10px; justify-content: center; margin-top: 16px; }
.toast { position: fixed; left: 50%; bottom: calc(env(safe-area-inset-bottom) + 20px); transform: translateX(-50%);
  background: rgba(32,16,64,0.92); border: 1px solid var(--panel-brd); color: var(--ink); padding: .6em 1.1em;
  border-radius: 999px; font-weight: 700; font-size: .85rem; z-index: 60; } .hidden { display: none !important; }