/* ============ Turbo Kart Racer — UI ============ */
:root{
  --accent:#ffcf33;
  --accent2:#ff5d3b;
  --good:#37e08b;
  --ink:#0b1020;
  --panel:rgba(8,12,24,.66);
  --stroke:rgba(255,255,255,.14);
  --font: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%;background:#05070f;overflow:hidden;font-family:var(--font);color:#fff;-webkit-user-select:none;user-select:none}
#game{position:fixed;inset:0}
#scene{display:block;width:100%;height:100%}
.hidden{display:none !important}
kbd{display:inline-block;background:#1a2238;border:1px solid #36406a;border-bottom-width:2px;border-radius:5px;padding:1px 7px;font-size:.8em;font-weight:700;min-width:20px;text-align:center}

/* ============ HUD ============ */
#hud{position:absolute;inset:0;pointer-events:none;z-index:5;font-variant-numeric:tabular-nums}
.hud-label{font-size:.55em;letter-spacing:.18em;opacity:.7;display:block}
.hud-sub{font-size:.5em;opacity:.65;font-weight:600}
.hud-dim{opacity:.78}

#hud-top-left{position:absolute;top:18px;left:20px;display:flex;gap:14px;align-items:flex-start}
#lap-box{background:var(--panel);backdrop-filter:blur(6px);border:1px solid var(--stroke);border-radius:14px;padding:8px 16px;line-height:1}
#lap-cur{font-size:2.4rem;font-weight:800;font-style:italic}
#pos-box{background:linear-gradient(160deg,var(--accent),var(--accent2));color:#241400;border-radius:14px;padding:6px 14px 4px;line-height:.9;display:flex;align-items:baseline;box-shadow:0 6px 20px rgba(255,120,40,.35)}
#pos-num{font-size:2.6rem;font-weight:900;font-style:italic}
#pos-ord{font-size:1rem;font-weight:800;margin-left:2px}
#pos-total{font-size:.8rem;font-weight:700;margin-left:5px;opacity:.7}

#hud-top-right{position:absolute;top:18px;right:20px;text-align:right;background:var(--panel);backdrop-filter:blur(6px);border:1px solid var(--stroke);border-radius:14px;padding:10px 16px}
#race-time{font-size:1.9rem;font-weight:800;letter-spacing:.02em}
#lap-time,#best-lap{font-size:.85rem;font-weight:600}
#best-lap{color:var(--accent)}

#minimap{position:absolute;bottom:20px;left:20px;background:rgba(6,10,22,.55);border:1px solid var(--stroke);border-radius:16px;backdrop-filter:blur(4px)}

#item-slot{position:absolute;top:18px;left:50%;transform:translateX(-50%);width:96px;height:96px;border-radius:20px;background:var(--panel);border:2px solid var(--stroke);backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;box-shadow:0 8px 26px rgba(0,0,0,.4)}
#item-icon{width:72px;height:72px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:46px;line-height:1;transition:transform .12s}
#item-icon.spin{animation:roulette .4s linear infinite}
@keyframes roulette{0%{transform:scale(.8) rotate(0)}100%{transform:scale(.8) rotate(360deg)}}
#item-icon.pop{transform:scale(1.18)}

#speedo{position:absolute;bottom:16px;right:20px;width:180px;height:180px}
#speedo-dial{position:absolute;inset:0}
#speed-readout{position:absolute;bottom:42px;left:0;width:100%;text-align:center;line-height:1}
#speed-val{font-size:2.5rem;font-weight:900;font-style:italic}
#speed-unit{display:block;font-size:.6rem;letter-spacing:.2em;opacity:.6;margin-top:-2px}
#gear-readout{position:absolute;bottom:20px;left:0;width:100%;text-align:center}
#gear-val{font-size:.95rem;font-weight:800;color:var(--accent)}

#center-msg{position:absolute;top:38%;left:50%;transform:translate(-50%,-50%);font-size:7rem;font-weight:900;font-style:italic;text-shadow:0 6px 30px rgba(0,0,0,.6);pointer-events:none;letter-spacing:-.02em}
#center-msg.go{color:var(--good)}
#center-msg.small{font-size:3rem}
.pulse{animation:pulse .5s ease-out}
@keyframes pulse{0%{transform:translate(-50%,-50%) scale(.4);opacity:0}40%{opacity:1}100%{transform:translate(-50%,-50%) scale(1.15);opacity:0}}

#boost-flash{position:absolute;inset:0;pointer-events:none;background:radial-gradient(ellipse at center, transparent 45%, rgba(90,180,255,.0) 100%);opacity:0;transition:opacity .2s}
#boost-flash.on{opacity:1;background:radial-gradient(ellipse 120% 90% at center, transparent 40%, rgba(90,170,255,.28) 100%)}

#standings{position:absolute;top:128px;left:20px;background:var(--panel);border:1px solid var(--stroke);border-radius:12px;padding:8px 10px;font-size:.8rem;backdrop-filter:blur(6px);min-width:150px}
#standings .row{display:flex;align-items:center;gap:8px;padding:2px 0}
#standings .row .p{width:18px;font-weight:800;text-align:right;opacity:.7}
#standings .row .dot{width:9px;height:9px;border-radius:50%}
#standings .row.me{font-weight:800}
#standings .row.me .nm{color:var(--accent)}

/* ============ TITLE ============ */
#title-screen{position:absolute;inset:0;z-index:20;display:flex;flex-direction:column;align-items:center;justify-content:center;
  background:radial-gradient(ellipse at 50% 0%, #1b2c5a 0%, #0a1024 55%, #05070f 100%);text-align:center}
.title-wrap{max-width:920px;padding:30px;animation:rise .6s ease-out}
@keyframes rise{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}
.game-title{font-size:5.2rem;font-weight:900;line-height:.92;letter-spacing:-.02em}
.game-title span{color:#fff;text-shadow:0 4px 0 rgba(0,0,0,.25)}
.game-title em{font-style:italic;background:linear-gradient(120deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.tagline{margin-top:8px;letter-spacing:.45em;font-size:.9rem;opacity:.65;text-transform:uppercase}
.select-grid{display:flex;gap:22px;justify-content:center;margin:34px 0 26px;flex-wrap:wrap}
.select-col h3{font-size:.7rem;letter-spacing:.28em;opacity:.6;margin-bottom:10px}
.picker{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;max-width:300px}
.pick{cursor:pointer;border:2px solid var(--stroke);background:rgba(255,255,255,.04);border-radius:12px;padding:8px 12px;min-width:62px;transition:.15s;font-weight:700;font-size:.85rem;pointer-events:auto}
.pick .swatch{width:100%;height:26px;border-radius:7px;margin-bottom:6px}
.pick small{display:block;font-size:.62rem;opacity:.6;font-weight:600;margin-top:2px}
.pick:hover{border-color:rgba(255,255,255,.4);transform:translateY(-2px)}
.pick.sel{border-color:var(--accent);background:rgba(255,207,51,.12);box-shadow:0 6px 20px rgba(255,207,51,.18)}
#start-btn,.results-buttons button,.pause-card button{cursor:pointer;pointer-events:auto;border:none;border-radius:14px;font-weight:900;font-style:italic;letter-spacing:.04em;color:#241400;
  background:linear-gradient(120deg,var(--accent),var(--accent2));padding:16px 44px;font-size:1.3rem;box-shadow:0 10px 30px rgba(255,120,40,.4);transition:.15s}
#start-btn:hover{transform:translateY(-2px) scale(1.02);box-shadow:0 14px 40px rgba(255,120,40,.55)}
#start-btn:disabled{opacity:.5;cursor:wait;filter:grayscale(.4)}
.controls-hint{margin-top:26px;font-size:.82rem;opacity:.7;line-height:1.9}
.controls-hint .gp{opacity:.55}
#loading-note{position:absolute;bottom:24px;font-size:.8rem;opacity:.5;letter-spacing:.1em}

/* ============ RESULTS ============ */
#results-screen{position:absolute;inset:0;z-index:20;display:flex;flex-direction:column;align-items:center;justify-content:center;
  background:radial-gradient(ellipse at 50% 0%, #1b2c5a 0%, #0a1024 60%, #05070f 100%);animation:rise .5s ease-out}
#results-headline{font-size:4rem;font-weight:900;font-style:italic;background:linear-gradient(120deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:22px}
#results-table{width:min(520px,86vw);background:var(--panel);border:1px solid var(--stroke);border-radius:16px;overflow:hidden}
#results-table .rrow{display:flex;align-items:center;gap:14px;padding:11px 18px;border-bottom:1px solid rgba(255,255,255,.06);font-size:1.05rem}
#results-table .rrow:last-child{border-bottom:none}
#results-table .rrow.me{background:rgba(255,207,51,.1);font-weight:800}
#results-table .rp{font-size:1.4rem;font-weight:900;font-style:italic;width:42px;opacity:.85}
#results-table .rp.gold{color:var(--accent)}
#results-table .rdot{width:12px;height:12px;border-radius:50%}
#results-table .rnm{flex:1;text-align:left}
#results-table .rt{opacity:.75;font-size:.92rem}
.results-stats{display:flex;gap:30px;margin:20px 0 26px;font-size:.95rem;opacity:.85}
.results-stats b{color:var(--accent);font-size:1.1rem;margin-left:6px}
.results-buttons{display:flex;gap:16px}
.results-buttons button,.pause-card button{font-size:1.05rem;padding:13px 30px}
#menu-btn,#quit-btn{background:rgba(255,255,255,.1);color:#fff;box-shadow:none;border:1px solid var(--stroke)}

/* ============ PAUSE ============ */
#pause-screen{position:absolute;inset:0;z-index:25;display:flex;align-items:center;justify-content:center;background:rgba(5,7,15,.7);backdrop-filter:blur(6px)}
.pause-card{background:var(--panel);border:1px solid var(--stroke);border-radius:20px;padding:36px 48px;text-align:center;display:flex;flex-direction:column;gap:14px}
.pause-card h2{font-size:2.4rem;font-weight:900;font-style:italic;margin-bottom:8px}

/* ============ LEVEL TRANSITION (level-to-level cinematic) ============ */
#level-transition{position:absolute;inset:0;z-index:30;pointer-events:none;overflow:hidden;
  --lt-color:#ff9d5c;--lt-color2:#7a4bb0}
#level-transition .lt-panel{position:absolute;left:-20%;width:140%;height:58%;
  background:linear-gradient(100deg,var(--lt-color2),var(--lt-color));
  box-shadow:0 0 60px rgba(0,0,0,.5)}
#level-transition .lt-top{top:0;transform:translateX(-130%) skewX(-14deg)}
#level-transition .lt-bot{bottom:0;transform:translateX(130%) skewX(-14deg)}
#level-transition.play .lt-top{animation:lt-top 1.15s cubic-bezier(.7,0,.2,1) forwards}
#level-transition.play .lt-bot{animation:lt-bot 1.15s cubic-bezier(.7,0,.2,1) forwards}
@keyframes lt-top{0%{transform:translateX(-130%) skewX(-14deg)}38%{transform:translateX(0) skewX(-14deg)}
  60%{transform:translateX(0) skewX(-14deg)}100%{transform:translateX(130%) skewX(-14deg)}}
@keyframes lt-bot{0%{transform:translateX(130%) skewX(-14deg)}38%{transform:translateX(0) skewX(-14deg)}
  60%{transform:translateX(0) skewX(-14deg)}100%{transform:translateX(-130%) skewX(-14deg)}}
#level-transition .lt-center{position:absolute;inset:0;display:flex;flex-direction:column;
  align-items:center;justify-content:center;text-align:center;opacity:0}
#level-transition.play .lt-center{animation:lt-text 1.15s ease-out forwards}
@keyframes lt-text{0%,26%{opacity:0;transform:scale(.82) translateY(24px)}
  44%{opacity:1;transform:scale(1) translateY(0)}74%{opacity:1;transform:scale(1) translateY(0)}
  100%{opacity:0;transform:scale(1.06) translateY(-10px)}}
#level-transition .lt-kicker{font-size:1.1rem;font-weight:800;letter-spacing:.5em;
  color:rgba(255,255,255,.85);text-shadow:0 2px 12px rgba(0,0,0,.5);margin-bottom:6px}
#level-transition .lt-name{font-size:5rem;font-weight:900;font-style:italic;letter-spacing:-.02em;
  color:#fff;text-shadow:0 6px 30px rgba(0,0,0,.55);line-height:1}
#level-transition .lt-sub{margin-top:14px;font-size:1.2rem;font-weight:800;letter-spacing:.4em;
  color:#241400;background:#fff;padding:5px 18px;border-radius:30px;transform:skewX(-6deg)}
#level-transition .lt-streaks{position:absolute;inset:0;overflow:hidden;z-index:-1}
#level-transition.play .lt-streaks::before,#level-transition.play .lt-streaks::after{
  content:"";position:absolute;left:-40%;width:180%;height:3px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.8),transparent);
  animation:lt-streak .6s linear forwards}
#level-transition.play .lt-streaks::before{top:42%;animation-delay:.4s}
#level-transition.play .lt-streaks::after{top:57%;animation-delay:.5s}
@keyframes lt-streak{0%{transform:translateX(-60%);opacity:0}30%{opacity:1}100%{transform:translateX(60%);opacity:0}}
#next-btn{background:linear-gradient(120deg,#37e08b,#1f9d8a) !important;color:#04231a !important}

@media (max-width:680px){
  .game-title{font-size:3.4rem}
  #center-msg{font-size:4.5rem}
  #speedo{width:130px;height:130px}#speedo-dial{width:130px;height:130px}
  #minimap{width:150px;height:150px}
  #level-transition .lt-name{font-size:2.8rem}
}