:root {
  --bg: #06080f;
  --ink: #e9ecf5;
  --dim: #8b93a8;
  --fire: #ff7a1f;
  --fire2: #ffc24a;
  --toxic: #7dff9a;
  --echo: #6ff3e4;
  --blood: #d8332c;
  --display: Impact, "Arial Narrow Bold", "Helvetica Neue", Haettenschweiler, sans-serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; height: 100%; -webkit-user-select: none; user-select: none; -webkit-touch-callout: none; touch-action: none; background: var(--bg); color: var(--ink); font-family: var(--sans); overflow: hidden; overscroll-behavior: none; }
canvas#gl { position: fixed; inset: 0; width: 100%; height: 100%; display: none; touch-action: none; }
canvas#game { position: fixed; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; cursor: crosshair; }
.hidden { display: none !important; }

#vignette, #flash { position: fixed; inset: 0; pointer-events: none; }
#vignette { opacity: 0; --tint: 120,10,10; background: radial-gradient(ellipse at center, transparent 45%, rgba(var(--tint), .75) 100%); transition: opacity .25s; }
#flash { opacity: 0; }

/* ------------------------------------------------------------------ HUD */
#hud { position: fixed; inset: 0; pointer-events: none; padding: max(14px, env(safe-area-inset-top)) max(14px, env(safe-area-inset-right)) 14px max(14px, env(safe-area-inset-left)); }
.hud-left { position: absolute; left: max(14px, env(safe-area-inset-left)); top: max(14px, env(safe-area-inset-top)); width: min(220px, 38vw); display: grid; gap: 8px; }
.bar span { display: block; font: 700 10px/1 var(--sans); letter-spacing: .18em; color: var(--dim); margin-bottom: 4px; }
.track { height: 9px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.12); border-radius: 6px; overflow: hidden; }
.track i { display: block; height: 100%; width: 0; }
.inf .track i { background: linear-gradient(90deg, #4be06a, #d8e03a 55%, var(--blood)); background-size: 220px 100%; transition: width .15s; }
.sta .track i { background: linear-gradient(90deg, #ffb347, var(--fire2)); }
.sta .track.exh i { background: #7b6a58; }
.hud-center { position: absolute; left: 50%; top: max(10px, env(safe-area-inset-top)); transform: translateX(-50%); text-align: center; text-shadow: 0 2px 12px #000; }
#depth { font: 400 clamp(34px, 7vw, 58px)/1 var(--display); letter-spacing: .03em; }
#depth small { font-size: .38em; margin-left: 4px; color: var(--fire2); }
#score { font: 700 11px/1 var(--sans); letter-spacing: .22em; color: var(--dim); margin-top: 4px; }
.hud-right { position: absolute; right: max(14px, env(safe-area-inset-right)); top: max(14px, env(safe-area-inset-top)); display: flex; flex-direction: column; align-items: flex-end; gap: 10px; }
#pauseBtn { pointer-events: auto; width: 38px; height: 38px; border-radius: 10px; border: 1px solid rgba(255,255,255,.18); background: rgba(10,14,24,.6); color: var(--ink); font-size: 12px; cursor: pointer; }
#followers { font: 700 11px/1.2 var(--sans); letter-spacing: .14em; color: var(--toxic); text-align: right; opacity: 0; transition: opacity .3s; text-shadow: 0 1px 6px #000; max-width: 52vw; }
#followers.on { opacity: 1; }

#hint { position: absolute; left: 50%; bottom: 13%; transform: translateX(-50%); max-width: min(620px, 88vw); text-align: center; font: 700 clamp(13px, 2.2vw, 17px)/1.4 var(--sans); letter-spacing: .06em; color: #fff; padding: 10px 18px; border-radius: 999px; background: rgba(8,10,18,.72); border: 1px solid rgba(255,255,255,.14); opacity: 0; transition: opacity .35s; text-shadow: 0 1px 4px #000; }
#hint.on { opacity: 1; }

#toasts { position: absolute; left: 50%; top: 15%; transform: translateX(-50%); display: grid; gap: 6px; justify-items: center; width: max-content; max-width: 92vw; }
.toast { text-align: center; padding: 5px 16px; border-radius: 12px; background: rgba(8,10,18,.6); border: 1px solid rgba(255,255,255,.12); animation: pop .35s cubic-bezier(.2,1.4,.4,1); transition: opacity .5s, transform .5s; text-shadow: 0 2px 10px #000; }
.toast.out { opacity: 0; transform: translateY(-14px); }
.toast b { display: block; font: 400 clamp(17px, 3.4vw, 26px)/1.05 var(--display); letter-spacing: .06em; color: var(--fire2); }
.toast span { display: block; font: 600 10px/1.3 var(--sans); letter-spacing: .12em; color: var(--dim); text-transform: uppercase; margin-top: 2px; }
.toast.echo { border-color: rgba(111,243,228,.5); } .toast.echo b { color: var(--echo); }
.toast.horde { border-color: rgba(216,51,44,.6); } .toast.horde b { color: #ff6a5a; }
.toast.good b { color: var(--toxic); }
.toast.big { border-color: rgba(255,122,31,.6); } .toast.big b { font-size: clamp(24px, 5vw, 38px); color: var(--fire); }
@keyframes pop { from { transform: scale(.7); opacity: 0; } to { transform: scale(1); opacity: 1; } }

#sprintBtn { position: fixed; right: max(20px, env(safe-area-inset-right)); bottom: max(26px, env(safe-area-inset-bottom)); width: 96px; height: 96px; border-radius: 50%; pointer-events: none; display: grid; place-items: center;
  --sta: 100%; background: conic-gradient(var(--fire2) var(--sta), rgba(255,255,255,.14) 0); opacity: .75; transition: transform .1s, opacity .15s; }
#sprintBtn::before { content: ""; position: absolute; inset: 7px; border-radius: 50%; background: rgba(10,13,22,.82); border: 1px solid rgba(255,255,255,.08); }
#sprintBtn span { position: relative; font: 400 15px var(--display); letter-spacing: .12em; color: var(--fire2); }
#sprintBtn.lefty { right: auto; left: max(20px, env(safe-area-inset-left)); }
#sprintBtn.on { transform: scale(1.1); opacity: 1; }
#sprintBtn.on::before { background: rgba(60,28,10,.86); }
#sprintBtn.on span { color: #fff; }
#sprintBtn.exh { background: conic-gradient(#7b6a58 var(--sta), rgba(255,255,255,.14) 0); }
#sprintBtn.exh span { color: #8a7d6d; }

/* ------------------------------------------------------------------ screens */
.screen { position: fixed; inset: 0; display: grid; place-items: center; padding: 16px; overflow-y: auto; background: radial-gradient(ellipse at 50% 40%, rgba(6,8,15,.35), rgba(6,8,15,.88)); backdrop-filter: blur(1.5px); }
.panel { width: min(640px, 100%); text-align: center; padding: 26px 22px; }
.panel.small { width: min(380px, 100%); }
.eyebrow { font: 700 11px/1 var(--sans); letter-spacing: .32em; color: var(--dim); }
h1 { margin: 12px 0 0; font: 400 clamp(64px, 15vw, 128px)/.9 var(--display); letter-spacing: .02em; color: #fff; text-shadow: 0 0 30px rgba(255,122,31,.35); }
h1 span { background: linear-gradient(180deg, var(--fire2), var(--fire) 55%, #c43a0c); -webkit-background-clip: text; background-clip: text; color: transparent; filter: drop-shadow(0 0 18px rgba(255,100,20,.55)); animation: flicker 3.2s infinite; }
@keyframes flicker { 0%,100% { filter: drop-shadow(0 0 18px rgba(255,100,20,.55)); } 45% { filter: drop-shadow(0 0 26px rgba(255,120,30,.8)); } 50% { filter: drop-shadow(0 0 10px rgba(255,100,20,.4)); } 55% { filter: drop-shadow(0 0 24px rgba(255,120,30,.8)); } }
.tag { margin: 10px 0 22px; font: 600 clamp(15px, 2.6vw, 19px)/1.3 var(--sans); letter-spacing: .12em; color: var(--toxic); }
.rules { display: grid; gap: 8px; text-align: left; margin-bottom: 24px; }
.rule { display: flex; gap: 12px; align-items: flex-start; padding: 10px 14px; border-radius: 12px; background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.08); font-size: 14px; line-height: 1.4; color: #c9cee0; }
.rule b { flex: none; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; background: var(--fire); color: #1a0a02; font: 400 15px var(--display); }
.rule em { font-style: normal; font-weight: 700; color: #fff; }
.rule u { text-decoration: none; color: var(--echo); font-weight: 700; }
.cta { display: inline-block; min-width: 210px; padding: 15px 34px; border: 0; border-radius: 14px; cursor: pointer; font: 400 28px/1 var(--display); letter-spacing: .14em; color: #1a0a02; background: linear-gradient(180deg, var(--fire2), var(--fire)); box-shadow: 0 8px 30px rgba(255,122,31,.35), inset 0 -3px 0 rgba(0,0,0,.2); transition: transform .12s, box-shadow .12s; }
.cta:hover { transform: translateY(-2px) scale(1.02); box-shadow: 0 12px 40px rgba(255,122,31,.5), inset 0 -3px 0 rgba(0,0,0,.2); }
.cta:active { transform: translateY(1px); }
.ghost { padding: 10px 18px; border-radius: 10px; border: 1px solid rgba(255,255,255,.2); background: rgba(255,255,255,.05); color: var(--ink); font: 700 12px var(--sans); letter-spacing: .16em; cursor: pointer; }
.ghost:hover { background: rgba(255,255,255,.12); }
.row { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 16px; }
.best { margin-top: 16px; font: 700 12px var(--sans); letter-spacing: .2em; color: var(--fire2); min-height: 14px; }
.keys { margin-top: 18px; display: grid; gap: 5px; font-size: 12px; color: var(--dim); }
kbd { font: 600 11px var(--sans); padding: 2px 7px; border-radius: 5px; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.16); color: #dfe3f0; }
h2 { margin: 0 0 18px; font: 400 44px/1 var(--display); letter-spacing: .1em; }
h2.turned { margin: 10px 0 6px; white-space: nowrap; font-size: clamp(38px, 10vw, 80px); color: #8fe36a; text-shadow: 0 0 28px rgba(110,255,100,.35); }
.score-big b, .score-big span { font: 400 clamp(40px, 9vw, 64px)/1 var(--display); color: #fff; }
.score-big small { display: block; font: 700 11px var(--sans); letter-spacing: .3em; color: var(--dim); margin-top: 2px; }
.newbest { display: inline-block; margin: 10px 0 0; padding: 4px 12px; border-radius: 999px; background: rgba(255,194,74,.16); border: 1px solid rgba(255,194,74,.5); color: var(--fire2); font: 700 11px var(--sans); letter-spacing: .22em; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 20px 0 24px; }
.stats div { padding: 12px 6px; border-radius: 12px; background: rgba(255,255,255,.045); border: 1px solid rgba(255,255,255,.08); }
.stats b { display: block; font: 400 28px/1 var(--display); letter-spacing: .04em; }
.stats span { display: block; margin-top: 4px; font: 600 10px var(--sans); letter-spacing: .14em; color: var(--dim); text-transform: uppercase; }

@media (max-height: 640px) { .rules { display: none; } .tag { margin-bottom: 14px; } .keys { display: none; } }
@media (max-width: 560px) { .hud-left { width: 34vw; } .rule { font-size: 13px; } .stats b { font-size: 24px; } }
@media (prefers-reduced-motion: reduce) { h1 span { animation: none; } .toast { animation: none; } }

/* ------------------------------------------------------------------ options, first-person HUD, touch */
.hud-btns { display: flex; gap: 8px; pointer-events: auto; }
#viewBtn { pointer-events: auto; height: 38px; padding: 0 12px; border-radius: 10px; border: 1px solid rgba(255,255,255,.18); background: rgba(10,14,24,.6); color: var(--ink); font: 700 11px var(--sans); letter-spacing: .14em; cursor: pointer; }
.opts { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 14px; }
.touch-only { display: none; } .is-touch .touch-only { display: inline-block; }
.tip { margin-top: 12px; font-size: 12px; color: var(--dim); }
#hud.fp .hud-center { top: calc(var(--mb, 90px) + 20px); }
#hud.fp #toasts { top: calc(var(--mb, 90px) + 108px); }
#hud.fp #hint { bottom: 178px; }
#hud.fp #followers { margin-top: 0; }
@media (pointer: coarse) {
  #pauseBtn, #viewBtn { height: 46px; min-width: 46px; }
  .ghost { padding: 14px 18px; }
  .cta { padding: 18px 40px; }
  #hint { bottom: 20%; }
}
@media (max-height: 520px) {
  .screen { place-items: start center; }
  .panel { padding: 12px 18px; }
  h1 { font-size: clamp(48px, 14vh, 84px); margin-top: 6px; }
  .tag { margin: 6px 0 12px; }
  .eyebrow { display: none; }
  .cta { padding: 12px 32px; font-size: 24px; }
  .opts { margin-top: 10px; }
  .best { margin-top: 10px; }
  h2.turned { font-size: 40px; margin: 4px 0; }
  .stats { margin: 10px 0 14px; }
  .stats div { padding: 7px 4px; } .stats b { font-size: 22px; }
  .score-big span { font-size: 38px; }
  #sprintBtn { width: 80px; height: 80px; bottom: 16px; }
  #hud.fp #hint { bottom: 90px; }
  #hud.fp #depth { font-size: 32px; }
  #hud.fp #score { display: none; }
  #hud.fp .hud-center { top: calc(var(--mb, 90px) + 6px); }
  #hud.fp #toasts { top: calc(var(--mb, 90px) + 50px); }
  #hud.fp .toast span { display: none; }
}

/* ------------------------------------------------------------------ modes, settings, leaderboard, submit */
.modes { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 16px auto 0; max-width: 460px; }
.mode { display: flex; flex-direction: column; align-items: center; gap: 3px; padding: 12px 10px; }
.mode small { font: 600 9.5px var(--sans); letter-spacing: .1em; color: var(--dim); text-transform: uppercase; min-height: 11px; }
.setlist { display: grid; gap: 6px; text-align: left; margin: 0 auto 14px; max-width: 520px; max-height: 58vh; overflow-y: auto; padding-right: 2px; }
.setrow { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 7px 8px 7px 14px; border-radius: 12px; background: rgba(255,255,255,.045); border: 1px solid rgba(255,255,255,.08); }
.setrow .lbl { font: 700 12px var(--sans); letter-spacing: .14em; color: #cfd5e8; }
.setrow .lbl small { display: block; font: 500 10.5px var(--sans); letter-spacing: .02em; color: var(--dim); margin-top: 2px; text-transform: none; }
.setrow button { min-width: 142px; padding: 9px 12px; }
.board { list-style: none; margin: 10px auto 18px; padding: 0; max-width: 460px; text-align: left; max-height: 52vh; overflow-y: auto; counter-reset: r; }
.board li { counter-increment: r; display: grid; grid-template-columns: 30px 1fr auto; gap: 10px; align-items: baseline; padding: 8px 12px; border-bottom: 1px solid rgba(255,255,255,.07); font: 600 14px var(--sans); }
.board li::before { content: counter(r); font: 400 16px var(--display); color: var(--fire2); }
.board li:nth-child(-n+3)::before { color: var(--fire); }
.board li b { font-weight: 700; letter-spacing: .06em; }
.board li span { font: 400 20px var(--display); letter-spacing: .04em; }
.board li small { grid-column: 2 / 4; color: var(--dim); font: 500 11px var(--sans); letter-spacing: .04em; margin-top: -4px; }
.board li.me { background: rgba(255,194,74,.1); border-radius: 8px; }
.submit { margin: 0 auto 16px; max-width: 420px; }
.subrow { display: flex; gap: 8px; justify-content: center; }
.subrow input { flex: 1; min-width: 0; padding: 11px 14px; border-radius: 10px; border: 1px solid rgba(255,255,255,.22); background: rgba(255,255,255,.07); color: #fff; font: 700 14px var(--sans); letter-spacing: .14em; text-transform: uppercase; user-select: text; -webkit-user-select: text; }
.subrow input:focus { outline: 2px solid var(--fire2); outline-offset: 1px; }
#ts { display: flex; justify-content: center; margin-top: 8px; min-height: 0; }
.fb { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; justify-content: center; margin: 0 auto 16px; font: 600 11px var(--sans); letter-spacing: .1em; color: var(--dim); }
.fb .ghost { padding: 7px 10px; font-size: 10.5px; }
.fb.done { opacity: .6; pointer-events: none; }
.modeTag { display: inline-block; margin: 2px 0 6px; padding: 3px 10px; border-radius: 999px; border: 1px solid rgba(125,255,154,.4); color: var(--toxic); font: 700 10px var(--sans); letter-spacing: .22em; }
.ghostres { margin: 8px auto 0; font: 700 12px var(--sans); letter-spacing: .14em; color: #ffd67a; }
#ghostInfo { margin-top: 4px; font: 700 11px var(--sans); letter-spacing: .16em; color: #ffd67a; text-shadow: 0 1px 6px #000; min-height: 13px; }
#weatherTag { font: 700 10px var(--sans); letter-spacing: .2em; color: #9fb6e8; text-shadow: 0 1px 6px #000; }
#captions { position: absolute; left: 50%; bottom: 26%; transform: translateX(-50%); display: grid; gap: 4px; justify-items: center; width: max-content; max-width: 90vw; }
#captions div { padding: 4px 12px; border-radius: 8px; background: rgba(0,0,0,.62); border: 1px solid rgba(255,255,255,.12); font: 700 12.5px var(--sans); letter-spacing: .06em; color: #fff; animation: capin .15s ease-out; transition: opacity .5s; }
#captions div.out { opacity: 0; }
#captions b { color: var(--fire2); margin-right: 6px; }
@keyframes capin { from { transform: translateY(6px); opacity: 0; } to { transform: none; opacity: 1; } }
body.big-ui .setrow .lbl, body.big-ui .rule, body.big-ui #hint, body.big-ui .toast span { font-size: 115%; }
@media (max-width: 560px) { .modes { grid-template-columns: 1fr 1fr; } .setrow { flex-wrap: wrap; } .setrow button { flex: 1; } }
@media (max-height: 520px) { .modes { margin-top: 8px; } .mode { padding: 8px; } .setlist { max-height: 46vh; } #captions { bottom: 22%; } }