:root{color-scheme:dark;--accent:#6cf2c2;--bg:#17243a;--ink:#f6f8ff;--muted:#a8b3c8;--player:#8b7bff}*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:Inter,ui-rounded,system-ui,sans-serif;color:var(--ink);background:radial-gradient(circle at 20% 0%,color-mix(in srgb,var(--accent) 18%,transparent),transparent 34%),linear-gradient(145deg,#080c16,var(--bg));display:grid;place-items:center;padding:24px;padding-top:max(24px,env(safe-area-inset-top));padding-bottom:max(24px,env(safe-area-inset-bottom));padding-left:max(24px,env(safe-area-inset-left));padding-right:max(24px,env(safe-area-inset-right));touch-action:manipulation}.shell{width:min(560px,100%);background:#0a1020cc;border:1px solid #ffffff1c;border-radius:28px;padding:clamp(18px,4vw,38px);box-shadow:0 30px 100px #0008;backdrop-filter:blur(18px)}header{display:flex;align-items:start;justify-content:space-between;gap:20px;flex-wrap:wrap}.eyebrow{text-transform:uppercase;letter-spacing:.15em;color:var(--accent);font-weight:800;font-size:.72rem;margin:0 0 8px}h1{font-size:clamp(1.8rem,6vw,3rem);line-height:.95;letter-spacing:-.04em;margin:0;max-width:760px}.pitch{color:var(--muted);font-size:1.05rem;max-width:620px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:25px 0 14px}.stats div{background:#ffffff0a;border:1px solid #ffffff12;border-radius:16px;padding:12px 16px;text-align:center}.stats span{display:block;color:var(--muted);font-size:.72rem;text-transform:uppercase;letter-spacing:.1em}.stats strong{font-size:1.5rem}.game{background:linear-gradient(160deg,#ffffff08,#0002);border:1px solid #ffffff14;border-radius:22px;padding:10px;display:flex;justify-content:center}

/* stage HUD */
.stage-hud{margin:0 0 14px;padding:10px 14px;background:#ffffff08;border:1px solid #ffffff14;border-radius:14px}
.stage-hud-top{display:flex;justify-content:space-between;gap:10px;font-size:.82rem;color:var(--muted);margin-bottom:6px}
#stage-hud-name{color:var(--ink);font-weight:700}
.progress-track{height:7px;border-radius:999px;background:#ffffff14;overflow:hidden}
.progress-fill{height:100%;width:0;border-radius:999px;background:linear-gradient(90deg,var(--accent),#ffd166);transition:width .25s ease}

.arena{position:relative;width:min(460px,84vw,60vh);height:min(460px,84vw,60vh);overflow:hidden;border-radius:16px;background:#0d1526;touch-action:none;-webkit-tap-highlight-color:transparent;transition:box-shadow .2s ease}
.arena.arena-hit{animation:arenaShake .38s ease;box-shadow:inset 0 0 0 3px #ff5f73aa,0 0 30px #ff5f7355}
@keyframes arenaShake{10%{transform:translateX(-6px)}25%{transform:translateX(5px)}40%{transform:translateX(-4px)}55%{transform:translateX(3px)}70%{transform:translateX(-2px)}100%{transform:translateX(0)}}
/* Hazard swarm telegraph: fast red pulse warns of the incoming scripted burst */
.arena.swarm-warning{animation:swarmPulse .5s ease-in-out infinite}
@keyframes swarmPulse{0%,100%{box-shadow:inset 0 0 0 3px #ff5f7355,0 0 14px #ff5f7333}50%{box-shadow:inset 0 0 0 4px #ff5f73ee,0 0 34px #ff5f73aa}}
.arena.slowmo-active{box-shadow:inset 0 0 34px #b98bff55}

/* player: distinct from hazards (red) and pickups (teal/gold) - violet core,
   bright white halo ring, and a small directional arrow that points the way
   you're moving. Fixes the old bug where the player was a plain teal dot
   nearly identical to regular pickups. */
.player{position:absolute;width:7.5%;aspect-ratio:1/1;transform:translate(-50%,-50%);transition:left .05s linear,top .05s linear;z-index:3;--facing:0deg}
.player-halo{position:absolute;inset:-42%;border-radius:50%;border:2.5px solid #fff;box-shadow:0 0 14px #ffffffcc,0 0 3px #fff inset;opacity:.9;animation:playerPulse 1.6s ease-in-out infinite}
.player-core{position:absolute;inset:14%;border-radius:50%;background:radial-gradient(circle at 34% 28%,#e2d9ff,var(--player) 55%,#4c33cc);box-shadow:0 0 12px color-mix(in srgb,var(--player) 70%,transparent)}
.player-arrow{position:absolute;left:50%;top:-14%;width:0;height:0;border-left:5px solid transparent;border-right:5px solid transparent;border-bottom:10px solid #fff;transform-origin:50% 220%;transform:translateX(-50%) rotate(var(--facing));filter:drop-shadow(0 0 3px #fff);transition:transform .12s ease}
.player.shielded .player-halo{border-color:#ffd166;box-shadow:0 0 0 4px #ffd16655,0 0 22px #ffd166cc}
.player.shield-pop .player-halo{animation:shieldPop .4s ease}
.player.speedy .player-core{box-shadow:0 0 18px #38d6ffdd}
.player.speedy .player-halo{border-color:#38d6ff}
@keyframes playerPulse{0%,100%{transform:scale(1)}50%{transform:scale(1.1)}}
@keyframes shieldPop{0%{transform:scale(1.6);opacity:1}100%{transform:scale(1)}}

.hazard{position:absolute;border-radius:50%;background:#ff5f73;box-shadow:0 0 10px #ff5f7388;transform:translate(-50%,-50%)}
.hazard.swarm{box-shadow:0 0 12px #ff5f73aa,0 0 0 2px #ffffff40}
.pickup{position:absolute;width:5.5%;aspect-ratio:1/1;border-radius:50%;background:#6cf2c2;box-shadow:0 0 12px #6cf2c288;transform:translate(-50%,-50%);transition:transform .18s ease,opacity .18s ease}
.pickup.shield{background:#ffd166;box-shadow:0 0 14px #ffd166aa}
/* Speed boost: cyan diamond silhouette - reads as "fast" at a glance */
.pickup.speed{background:#38d6ff;box-shadow:0 0 14px #38d6ffaa;border-radius:20%;transform:translate(-50%,-50%) rotate(45deg)}
.pickup.speed.pop{transform:translate(-50%,-50%) rotate(45deg) scale(2.2);opacity:0}
/* Slow-mo: soft violet blob silhouette - reads as "different" from every other pickup */
.pickup.slowmo{background:#b98bff;box-shadow:0 0 14px #b98bffaa;border-radius:30% 70% 70% 30%/60% 40% 60% 40%}
.pickup.pop{transform:translate(-50%,-50%) scale(2.2);opacity:0}
.float-text{position:absolute;transform:translate(-50%,-50%);font-weight:800;font-size:.85rem;color:var(--accent);pointer-events:none;opacity:1;animation:floatUp .7s ease forwards;z-index:4}
.float-text.gold{color:#ffd166}
.float-text.cyan{color:#38d6ff}
.float-text.purple{color:#b98bff}
@keyframes floatUp{0%{opacity:1;transform:translate(-50%,-50%) translateY(0)}100%{opacity:0;transform:translate(-50%,-50%) translateY(-38px)}}

.header-btns{display:flex;gap:8px;flex-wrap:wrap}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.actions{display:flex;align-items:center;gap:12px;margin-top:14px;flex-wrap:wrap}.actions p{color:var(--muted);margin:0;width:100%}button,a{font:inherit}#start{border:0;border-radius:999px;background:var(--accent);color:#101522;font-weight:850;padding:12px 20px;cursor:pointer}.quiet{background:#ffffff0d;color:var(--ink);white-space:nowrap;border:0;border-radius:999px;padding:12px 20px;cursor:pointer}.quiet:disabled{opacity:.4;cursor:default}footer{display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:.84rem;margin-top:28px}a{color:var(--accent);text-decoration:none}
dialog{max-width:440px;max-height:88vh;overflow-y:auto;border:1px solid #ffffff20;border-radius:22px;background:#10182a;color:var(--ink);padding:28px;box-shadow:0 30px 100px #000}dialog::backdrop{background:#02040bd9}dialog button{margin-top:12px;min-height:44px}
#stage-select{max-width:560px;max-height:82vh;overflow:auto}
/* Touch/mobile: manipulation everywhere so taps register instantly with no
   double-tap-zoom delay, plus a tap-scale on every interactive button. */
button{touch-action:manipulation;-webkit-tap-highlight-color:transparent}
#start:active:not(:disabled),.quiet:active:not(:disabled),.stage-card button:active:not(:disabled),dialog button:active:not(:disabled){transform:scale(.96)}
.dialog-sub{color:var(--muted);margin-top:-6px}
.stage-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;margin:16px 0}
.stage-card{background:#ffffff0a;border:1px solid #ffffff16;border-radius:16px;padding:14px;display:flex;flex-direction:column;gap:6px}
.stage-card h3{margin:0;font-size:1.02rem}
.stage-card p{margin:0;color:var(--muted);font-size:.82rem;flex-grow:1}
.stage-card-top{display:flex;justify-content:space-between;align-items:center}
.stage-num{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:50%;background:var(--accent);color:#101522;font-weight:800;font-size:.82rem}
.stage-stars .star{color:#4a5573;font-size:.9rem}
.stage-stars .star.filled{color:#ffd166}
.stage-card button{border:0;border-radius:999px;background:var(--accent);color:#101522;font-weight:800;padding:9px 14px;cursor:pointer;margin-top:4px}
.stage-card button:disabled{background:#ffffff14;color:var(--muted);cursor:default}
.stage-card.locked{opacity:.62}
.stage-card.cleared{border-color:color-mix(in srgb,var(--accent) 45%,#ffffff16)}
.stage-card.endless{background:linear-gradient(160deg,#ffd16622,#ffffff0a)}
.stars-row{display:flex;gap:6px;font-size:1.6rem;margin:4px 0}
.stars-row[hidden]{display:none}
.stars-row .star{color:#4a5573;transition:transform .25s ease;display:inline-block}
.stars-row .star.filled{color:#ffd166;animation:starPop .35s ease backwards}
.stars-row .star.filled:nth-child(2){animation-delay:.08s}
.stars-row .star.filled:nth-child(3){animation-delay:.16s}
@keyframes starPop{0%{transform:scale(0) rotate(-20deg)}70%{transform:scale(1.25) rotate(8deg)}100%{transform:scale(1) rotate(0)}}
.gameover-actions{display:flex;flex-wrap:wrap;gap:10px}
.gameover-actions button{margin-top:0}
@media(max-width:600px){body{padding:10px}.shell{border-radius:20px;padding:16px}header{display:block}.quiet{margin-top:8px}.stats strong{font-size:1.15rem}}
@media(prefers-reduced-motion:reduce){
  .player{transition:none}
  .player-arrow{transition:none}
  .player-halo{animation:none}
  .player.shield-pop .player-halo{animation:none}
  .arena.arena-hit{animation:none}
  .arena.swarm-warning{animation:none;box-shadow:inset 0 0 0 4px #ff5f73ee,0 0 24px #ff5f73aa}
  .pickup{transition:none}
  .float-text{animation:none;opacity:.9}
  .stars-row .star.filled{animation:none}
  .progress-fill{transition:none}
}
footer a:first-child{color:var(--ink);font-weight:700}
footer a.quiet-link{color:var(--muted)}