.mode-rules { margin: 0; font-size: 14px; color: var(--muted); line-height: 1.4; }
.sn-hud { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.sn-hud div { background: var(--panel-2); border-radius: 12px; padding: 8px 10px; }
.sn-hud small { display: block; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.sn-hud b { font: 700 22px ui-monospace, Consolas, monospace; color: #fff; }

.sn-board { display: grid; justify-items: center; gap: 14px; min-height: 0; }
.sn-wrap { position: relative; width: 100%; display: grid; justify-items: center; }
.sn-wrap canvas { display: block; border-radius: 6px; box-shadow: 0 0 0 4px #2a1d5c, 0 0 0 7px var(--pink); touch-action: none; }
.sn-wrap.ate canvas { animation: sn-ate .25s ease-out; }
@keyframes sn-ate { 40% { box-shadow: 0 0 0 4px #2a1d5c, 0 0 0 7px #7dff9b, 0 0 30px #7dff9b; } }
.sn-wrap.crash canvas { animation: sn-crash .12s linear 5; }
@keyframes sn-crash { 25% { transform: translate(-5px, 2px); } 75% { transform: translate(5px, -2px); } 50% { box-shadow: 0 0 0 4px #2a1d5c, 0 0 0 7px #ff4d6d, 0 0 40px #ff4d6d; } }
.sn-over { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; gap: 6px; padding: 16px; background: rgba(12, 6, 36, .62); border-radius: 6px; cursor: pointer; }
.sn-over[hidden] { display: none; }
.sn-over b { font: 400 clamp(32px, 7vw, 64px)/1 var(--display); color: #fff; text-shadow: 0 0 14px var(--pink), 3px 3px 0 var(--title-a); }
.sn-over span { color: var(--text); font-weight: 700; }

/* direction pad: mostly for phones */
.sn-pad { display: grid; grid-template-columns: repeat(3, 58px); grid-template-rows: repeat(2, 50px); gap: 6px; }
.sn-pad button { border: 0; border-radius: 12px; background: var(--panel-2); color: #fff; font-size: 20px; cursor: pointer; box-shadow: 0 4px 0 #0d0624; touch-action: none; user-select: none; }
.sn-pad button:active { transform: translateY(3px); box-shadow: 0 1px 0 #0d0624; background: var(--pink); }
.pad-u { grid-column: 2; grid-row: 1; } .pad-l { grid-column: 1; grid-row: 2; } .pad-d { grid-column: 2; grid-row: 2; } .pad-r { grid-column: 3; grid-row: 2; }
@media (hover: hover) and (pointer: fine) { .sn-pad { display: none; } }
@media (max-width: 820px) { .gwrap .sn-board { order: -1; } }