/* NV Neon Snake — a synthwave arcade cabinet: violet night, magenta and cyan neon, a gold bonus. Fonts: IBM Plex (SIL OFL). */
@font-face { font-family: 'Plex Mono'; src: url('./fonts/ibm-plex-mono-latin-400-normal.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Plex Condensed'; src: url('./fonts/ibm-plex-sans-condensed-latin-500-normal.woff2') format('woff2'); font-weight: 500; font-display: swap; }
@font-face { font-family: 'Plex Condensed'; src: url('./fonts/ibm-plex-sans-condensed-latin-600-normal.woff2') format('woff2'); font-weight: 600; font-display: swap; }
:root {
  --night: #0d0221; --night-2: #1a0636; --pink: #ff2e88; --cyan: #22e5ff; --violet: #8b5cf6; --gold: #ffd166; --text: #efe6ff; --soft: #a38fc7;
  --mono: 'Plex Mono', ui-monospace, Consolas, monospace; --sans: 'Plex Condensed', 'Arial Narrow', system-ui, sans-serif;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; min-height: 100vh; color: var(--text); font: 500 16px/1.45 var(--sans);
  background: linear-gradient(transparent 60%, rgba(255, 46, 136, 0.12)), radial-gradient(80% 50% at 50% 0%, #2b0b57, var(--night) 70%); background-attachment: fixed; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }
a { color: var(--cyan); }
.cab { width: min(620px, calc(100% - 24px)); margin: clamp(12px, 3vw, 28px) auto; display: grid; gap: 12px; grid-template-columns: minmax(0, 1fr); }
.top { text-align: center; }
.brand { margin: 0; font-size: 11px; letter-spacing: 0.26em; text-transform: uppercase; color: var(--soft); }
.brand span { color: var(--text); font-weight: 600; }
h1 { margin: 2px 0 0; font: 600 clamp(34px, 9vw, 54px)/1 var(--sans); letter-spacing: 0.12em; text-transform: uppercase; color: #fff;
  text-shadow: 0 0 6px var(--pink), 0 0 18px var(--pink), 0 0 36px rgba(255, 46, 136, 0.6); }

.bar { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.seg { display: inline-flex; flex-wrap: wrap; justify-content: center; padding: 3px; gap: 2px; border-radius: 10px; background: rgba(0, 0, 0, 0.35); border: 1px solid rgba(139, 92, 246, 0.35); }
.seg button { min-height: 32px; padding: 0 11px; border: 0; border-radius: 8px; background: transparent; color: var(--soft); cursor: pointer; font-weight: 600; font-size: 14px; }
.seg button:hover { color: var(--text); }
.seg button[aria-pressed='true'] { background: rgba(255, 46, 136, 0.18); color: #fff; box-shadow: inset 0 0 0 1px var(--pink), 0 0 12px rgba(255, 46, 136, 0.35); }

.hud { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.hud div { display: grid; justify-items: center; padding: 6px 4px; border-radius: 10px; background: rgba(0, 0, 0, 0.35); border: 1px solid rgba(34, 229, 255, 0.2); }
.hud span { font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--soft); }
.hud b { font: 400 clamp(18px, 5vw, 24px)/1.1 var(--mono); color: var(--cyan); text-shadow: 0 0 10px rgba(34, 229, 255, 0.6); }

.screen { position: relative; aspect-ratio: 1; border-radius: 14px; overflow: hidden; touch-action: none; user-select: none; -webkit-user-select: none;
  border: 2px solid rgba(255, 46, 136, 0.6); box-shadow: 0 0 24px rgba(255, 46, 136, 0.35), inset 0 0 40px rgba(0, 0, 0, 0.8); background: var(--night); }
.screen:focus-visible { outline-offset: 4px; }
.screen.shake { animation: shake 0.35s; }
@keyframes shake { 20% { transform: translate(-6px, 2px); } 40% { transform: translate(5px, -3px); } 60% { transform: translate(-4px, 1px); } 80% { transform: translate(3px, 0); } }
canvas { display: block; width: 100%; height: 100%; }
.overlay { position: absolute; inset: 0; display: grid; place-content: center; justify-items: center; gap: 10px; padding: 20px; text-align: center; background: rgba(13, 2, 33, 0.72); backdrop-filter: blur(2px); }
.overlay__title { margin: 0; font: 600 clamp(28px, 8vw, 44px)/1 var(--sans); letter-spacing: 0.1em; text-transform: uppercase; color: #fff; text-shadow: 0 0 10px var(--cyan), 0 0 28px var(--cyan); }
.overlay__text { margin: 0; max-width: 34ch; color: var(--text); white-space: pre-line; }
.btn { min-height: 42px; padding: 0 20px; border-radius: 10px; border: 1px solid var(--violet); background: rgba(139, 92, 246, 0.15); cursor: pointer; font-weight: 600; }
.btn--neon { border-color: var(--pink); background: var(--pink); color: #fff; box-shadow: 0 0 18px rgba(255, 46, 136, 0.6); letter-spacing: 0.08em; text-transform: uppercase; }
.btn--neon:hover { background: #ff5aa2; }

.pad { display: none; grid-template-columns: repeat(3, 64px); grid-template-rows: repeat(3, 56px); gap: 6px; justify-content: center;
  grid-template-areas: '. up .' 'left mid right' '. down .'; touch-action: none; }
.pad button { border-radius: 14px; border: 1px solid rgba(34, 229, 255, 0.45); background: rgba(34, 229, 255, 0.08); font-size: 20px; color: var(--cyan); cursor: pointer; }
.pad button:active { background: rgba(34, 229, 255, 0.3); }
.pad [data-dir='up'] { grid-area: up; } .pad [data-dir='down'] { grid-area: down; } .pad [data-dir='left'] { grid-area: left; } .pad [data-dir='right'] { grid-area: right; }
#pad-pause { grid-area: mid; font-size: 14px; color: var(--soft); border-color: rgba(139, 92, 246, 0.4); background: transparent; }
@media (pointer: coarse) { .pad { display: grid; } }

.keys { margin: 0; text-align: center; font-size: 13px; color: var(--soft); }
kbd { font: 400 11px var(--mono); border: 1px solid rgba(139, 92, 246, 0.5); border-bottom-width: 2px; border-radius: 4px; padding: 0 4px; margin: 0 1px; background: var(--night); color: var(--text); }
.tables { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.card { padding: 14px 16px; border-radius: 14px; background: rgba(0, 0, 0, 0.3); border: 1px solid rgba(139, 92, 246, 0.3); }
h2 { margin: 0 0 8px; font: 600 14px var(--sans); letter-spacing: 0.14em; text-transform: uppercase; color: var(--pink); }
h2 span { color: var(--soft); }
.scores { margin: 0; padding: 0; list-style: none; display: grid; gap: 4px; counter-reset: r; }
.scores li { display: grid; grid-template-columns: 2ch 1fr auto; gap: 10px; align-items: baseline; font: 400 15px var(--mono); padding: 3px 6px; border-radius: 6px; counter-increment: r; }
.scores li::before { content: counter(r); color: var(--soft); }
.scores li small { font: 500 12px var(--sans); color: var(--soft); }
.scores li.now { background: rgba(255, 46, 136, 0.16); box-shadow: inset 0 0 0 1px rgba(255, 46, 136, 0.5); }
.stats { margin: 0 0 10px; display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; font-size: 14px; }
.stats dt { color: var(--soft); }
.stats dd { margin: 0; font-family: var(--mono); text-align: right; }
.empty { margin: 0; color: var(--soft); font-size: 14px; }
.link { border: 0; background: none; padding: 0; color: var(--soft); text-decoration: underline; cursor: pointer; font-size: 13px; }
.foot { text-align: center; font-size: 12px; color: var(--soft); }
@media (prefers-reduced-motion: reduce) { .screen.shake { animation: none; } }