*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
:root{
  --lime:#8dffae; --mint:#35f2c0; --gold:#ffd45e; --coral:#ff6b6b;
  --cyan:#5af2ff; --ink:#e9fbf2; --muted:#82a79a; --line:rgba(120,255,190,.18);
}
html,body{height:100%;overflow:hidden}
body{
  background:#03080c; color:var(--ink);
  font-family:"Segoe UI","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  display:flex; align-items:center; justify-content:center;
  user-select:none; -webkit-user-select:none; touch-action:none;
}
#app{position:relative;width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:8px}
.ambient{position:absolute;inset:0;overflow:hidden;pointer-events:none}
.glow{position:absolute;border-radius:50%;filter:blur(90px);opacity:.30}
.glow-a{width:58vw;height:58vw;left:-18vw;top:-20vw;background:radial-gradient(circle,#0d7d62,transparent 66%)}
.glow-b{width:55vw;height:55vw;right:-18vw;bottom:-22vw;background:radial-gradient(circle,#0b5a8a,transparent 66%)}
.bg-grid{position:absolute;inset:0;opacity:.14;
  background-image:linear-gradient(rgba(120,255,190,.16) 1px,transparent 1px),linear-gradient(90deg,rgba(120,255,190,.16) 1px,transparent 1px);
  background-size:44px 44px;mask-image:radial-gradient(ellipse at center,#000 8%,transparent 76%);-webkit-mask-image:radial-gradient(ellipse at center,#000 8%,transparent 76%)}

/* ---------- top HUD ---------- */
.hud{position:relative;z-index:2;width:min(94vw,76vh,660px);display:flex;align-items:center;gap:10px;flex:none}
.brand{flex:1;min-width:0}
.brand-sub{font-family:Consolas,"Courier New",monospace;font-size:9px;letter-spacing:.38em;color:var(--mint);opacity:.75}
.brand h1{font-size:25px;font-weight:900;letter-spacing:.06em;line-height:1.1;margin-top:2px;
  background:linear-gradient(180deg,#fff 18%,var(--lime) 65%,#1e9c78);-webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 12px rgba(120,255,180,.45))}
.brand h1 span{background:linear-gradient(180deg,#fff 18%,var(--gold) 70%,#a4760f);-webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 10px rgba(255,212,94,.4))}
.brand-en{font-family:Consolas,monospace;font-size:9px;letter-spacing:.22em;color:#6e9488;margin-top:2px}
.stats{display:flex;gap:5px}
.stat{min-width:60px;padding:5px 8px;border:1px solid rgba(120,255,190,.16);border-radius:7px;
  background:rgba(6,22,24,.6);text-align:center}
.stat span{display:block;font-family:Consolas,monospace;font-size:8px;letter-spacing:.16em;color:#739b8e}
.stat b{display:block;font-family:Consolas,monospace;font-size:16px;line-height:1.2;color:#eafff2;
  text-shadow:0 0 10px rgba(120,255,180,.35)}
.stat:first-child b{color:var(--gold);text-shadow:0 0 12px rgba(255,212,94,.5)}
.tools{display:flex;gap:5px}
.icon-btn{width:29px;height:29px;border:1px solid rgba(120,255,190,.32);border-radius:7px;
  background:rgba(6,26,26,.72);color:var(--lime);font-size:14px;font-weight:800;cursor:pointer;transition:.15s}
.icon-btn:hover{background:rgba(120,255,190,.18);box-shadow:0 0 12px rgba(120,255,190,.35)}
.icon-btn.off{color:#5a7970;border-color:#33524b}

/* ---------- board ---------- */
#stage{position:relative;z-index:2;flex:none;width:min(94vw,76vh,660px);aspect-ratio:1;overflow:hidden;
  border:1px solid rgba(120,255,190,.30);border-radius:14px;background:#04100f;
  box-shadow:0 0 34px rgba(40,220,160,.18),0 0 90px rgba(30,130,190,.12),inset 0 0 60px rgba(0,0,0,.85)}
#cv{position:absolute;inset:0;width:100%;height:100%;display:block}
#stage::after{content:"";position:absolute;inset:0;pointer-events:none;z-index:3;opacity:.42;
  background:repeating-linear-gradient(to bottom,rgba(0,0,0,0) 0 3px,rgba(0,0,0,.10) 3px 4px)}
.hidden{display:none !important}

#toast{position:absolute;z-index:5;top:11%;left:0;right:0;text-align:center;font-size:19px;font-weight:900;letter-spacing:.22em;
  color:#fff;text-shadow:0 0 18px var(--lime),0 0 34px rgba(53,242,192,.6);pointer-events:none;
  animation:toastIn .32s cubic-bezier(.2,.9,.3,1)}
@keyframes toastIn{0%{transform:scale(1.5);opacity:0}100%{transform:scale(1);opacity:1}}
#combo{position:absolute;z-index:5;right:12px;top:12%;text-align:right;pointer-events:none;transform-origin:right center}
#combo b{display:block;font-family:Consolas,monospace;font-size:34px;font-weight:900;font-style:italic;line-height:1;color:var(--gold);
  text-shadow:0 0 16px rgba(255,212,94,.9),0 0 36px rgba(255,120,90,.5)}
#combo span{font-size:10px;letter-spacing:.18em;color:#ffe9b0}
#combo.pop{animation:comboPop .22s ease-out}
@keyframes comboPop{0%{transform:scale(1.5) rotate(-5deg);opacity:.4}100%{transform:scale(1) rotate(0);opacity:1}}

/* ---------- overlays ---------- */
#overlay{position:absolute;inset:0;z-index:6;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(ellipse at 50% 38%,rgba(3,18,20,.50),rgba(2,7,11,.84));backdrop-filter:blur(1px)}
#overlay.hidden{display:none}
.screen{width:100%;max-height:100%;padding:16px 20px;text-align:center;display:flex;flex-direction:column;align-items:center;
  overflow-y:auto;animation:screenIn .38s cubic-bezier(.2,.9,.3,1)}
@keyframes screenIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.screen-kicker{font-family:Consolas,monospace;font-size:9px;letter-spacing:.42em;color:var(--mint);opacity:.85}
.screen-title{font-size:clamp(30px,6vw,46px);font-weight:900;letter-spacing:.08em;line-height:1.2;margin-top:6px;
  background:linear-gradient(180deg,#fff 20%,var(--lime) 68%,#16866c);-webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 16px rgba(120,255,180,.5))}
.screen-title span{background:linear-gradient(180deg,#fff 20%,var(--gold) 72%,#9c6f10);-webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 12px rgba(255,212,94,.45))}
.tagline{font-size:11px;line-height:1.7;color:#9dc2b4;margin:8px 0 14px}

.setting{width:100%;max-width:350px;margin-bottom:8px;text-align:left}
.setting-cap{font-family:Consolas,monospace;font-size:9px;letter-spacing:.2em;color:#79a495;margin-bottom:5px}
.seg{display:flex;gap:5px}
.seg button{flex:1;padding:7px 4px;font-size:11px;font-weight:700;color:#a9cec0;cursor:pointer;
  border:1px solid rgba(120,255,190,.20);border-radius:6px;background:rgba(6,24,25,.66);transition:.15s}
.seg button:hover{border-color:rgba(120,255,190,.55);color:#eafff2}
.seg button.on{color:#04221a;border-color:transparent;background:linear-gradient(100deg,var(--lime),#d5ffe1 55%,var(--lime));
  box-shadow:0 0 16px rgba(120,255,180,.4)}
.setting-note{font-size:9px;color:#6f9688;margin:2px 0 10px;font-family:Consolas,monospace;letter-spacing:.04em}

.legend{width:100%;max-width:350px;border:1px solid rgba(120,255,190,.15);border-radius:8px;background:rgba(5,20,22,.55);
  padding:8px 9px;display:flex;flex-direction:column;gap:5px}
.key-row{display:flex;align-items:center;gap:5px;font-size:10px;color:#a7cabc}
.key{font-family:Consolas,monospace;font-size:9px;color:#e2fff0;border:1px solid rgba(120,255,190,.3);
  background:rgba(120,255,190,.07);border-radius:4px;padding:2px 6px;white-space:nowrap}
.key-desc{margin-left:auto;text-align:right;color:#86a99b}
.items{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin:12px 0 8px;font-size:10px;color:#a7cabc}
.items span{display:flex;align-items:center;gap:5px}
.dot{width:13px;height:13px;border-radius:50%;display:inline-block}
.dot.food{background:var(--coral);box-shadow:0 0 10px rgba(255,107,107,.9)}
.dot.gold{background:var(--gold);box-shadow:0 0 10px rgba(255,212,94,.9);border-radius:3px;transform:rotate(45deg)}

.big-btn{margin-top:8px;padding:11px 30px;font-size:15px;font-weight:800;letter-spacing:.1em;color:#03241a;border:none;border-radius:8px;cursor:pointer;
  background:linear-gradient(100deg,var(--lime),#ddffe8 55%,var(--lime));
  box-shadow:0 0 24px rgba(120,255,180,.45),inset 0 0 12px rgba(255,255,255,.5);transition:transform .12s,box-shadow .12s}
.big-btn:hover{transform:translateY(-2px) scale(1.03);box-shadow:0 0 34px rgba(120,255,180,.75)}
.big-btn:active{transform:scale(.97)}
.big-btn span{margin-left:5px}
.ghost-btn{margin-top:9px;background:transparent;border:1px solid rgba(143,190,170,.32);color:#9dc2b4;
  padding:7px 20px;border-radius:6px;font-size:11px;cursor:pointer;transition:.15s}
.ghost-btn:hover{border-color:var(--lime);color:var(--lime)}
.best-line{margin-top:9px;font-size:10px;color:#6f9688;font-family:Consolas,monospace}
.best-line b{color:var(--gold)}

.pause-title{font-family:Consolas,monospace;font-size:clamp(30px,7vw,44px);font-weight:900;letter-spacing:.2em;color:var(--lime);
  text-shadow:0 0 24px rgba(120,255,180,.65);margin:12px 0 4px}
.over-title{font-family:Consolas,monospace;font-size:clamp(19px,4vw,26px);font-weight:900;letter-spacing:.16em;color:var(--coral);
  text-shadow:0 0 20px rgba(255,107,107,.6);margin-top:8px}
.record{margin-top:8px;font-size:11px;letter-spacing:.2em;color:var(--gold);text-shadow:0 0 14px #ffb300;animation:blink .8s steps(2,end) infinite}
@keyframes blink{50%{opacity:.15}}
.death-reason{margin-top:8px;font-size:10px;color:#8fb1a4;letter-spacing:.1em}
.final-score{font-family:Consolas,monospace;font-size:clamp(40px,9vw,56px);font-weight:900;color:#fff;line-height:1.1;margin-top:4px;
  text-shadow:0 0 26px rgba(120,255,180,.75)}
.final-cap{font-size:9px;letter-spacing:.3em;color:#7ba194}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px;width:100%;max-width:300px;margin:16px 0 6px}
.stat-grid div{border:1px solid rgba(120,255,190,.16);background:rgba(5,20,22,.55);border-radius:6px;padding:7px}
.stat-grid span{display:block;font-size:9px;color:#7ba194;letter-spacing:.1em}
.stat-grid b{display:block;font-family:Consolas,monospace;font-size:18px;color:#e9fff2;margin-top:2px}
.over-best{font-size:10px;color:#6f9688;font-family:Consolas,monospace}
.over-best b{color:var(--gold)}
.rank{margin:6px 0 8px;font-size:11px;letter-spacing:.12em;color:var(--gold);min-height:15px}

/* ---------- touch pad ---------- */
.dpad{display:none;z-index:2;grid-template-columns:repeat(3,46px);grid-template-rows:repeat(3,42px);gap:4px;flex:none}
.dp{border:1px solid rgba(120,255,190,.35);background:rgba(6,26,26,.75);color:#cfffe3;border-radius:9px;
  font-size:15px;cursor:pointer;touch-action:none}
.dp:active{background:rgba(120,255,190,.3);transform:scale(.93)}
.dp.up{grid-area:1 / 2}.dp.left{grid-area:2 / 1}.dp.right{grid-area:2 / 3}.dp.down{grid-area:3 / 2}
.dp-core{grid-area:2 / 2;display:flex;align-items:center;justify-content:center;color:rgba(120,255,190,.3);font-size:16px}
.foot-hint{font-size:10px;color:#527a6c;letter-spacing:.06em;text-align:center;flex:none}
@media (pointer:coarse){.dpad{display:grid}.foot-hint{font-size:9px}}
@media (max-height:620px){
  .brand-en,.brand-sub{display:none}.brand h1{font-size:20px}
  .stat{min-width:50px;padding:3px 5px}.stat b{font-size:13px}
  .tagline{margin:4px 0 8px}.legend,.items{display:none}
  .setting{margin-bottom:5px}.screen{padding:10px 16px}
  .stat-grid{margin:9px 0 4px}
}
@media (max-width:560px){
  .brand h1{font-size:20px}.brand-en{display:none}
  .stat{min-width:46px;padding:4px 5px}.stat span{font-size:7px}.stat b{font-size:13px}
  .icon-btn{width:26px;height:26px}
  .foot-hint{display:none}
}
@media (max-height:520px){
  .dpad{display:none}.foot-hint{display:none}
  #app{gap:5px}.hud{gap:5px}.brand h1{font-size:17px}
  .screen{padding:8px 14px}.tagline{margin:4px 0 6px}
  .pause-title,.over-title{margin:4px 0}.final-score{font-size:36px}
}