/* =============================================================
 * SUPER KART GRAND PRIX - UI 스타일
 * ============================================================= */
:root{
  --bg:#080b16;
  --bg2:#101733;
  --panel:rgba(20,26,48,.78);
  --panel-line:rgba(140,170,255,.16);
  --txt:#eaf0ff;
  --dim:#93a2c8;
  --accent:#ffd54a;
  --accent2:#4fc3ff;
  --red:#e5484d;
  --green:#8ef2a8;
  --purple:#c264ff;
  --radius:16px;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  background:
    radial-gradient(1200px 700px at 12% -10%, #23306b 0%, transparent 60%),
    radial-gradient(900px 600px at 100% 0%, #5b2060 0%, transparent 55%),
    linear-gradient(180deg,var(--bg2),var(--bg));
  color:var(--txt);
  font-family:"Pretendard","Apple SD Gothic Neo","Noto Sans KR",system-ui,-apple-system,"Segoe UI",sans-serif;
  overflow:hidden;
}
.screen{display:none;position:absolute;inset:0;overflow:auto}
.screen.active{display:block}
#race.active,#results.active,#loading.active{display:flex;align-items:center;justify-content:center}
button{font-family:inherit;cursor:pointer}

/* ---------- 상단 바 ---------- */
.topbar{display:flex;justify-content:space-between;align-items:center;padding:14px 22px;gap:16px}
.logo{display:flex;align-items:center;gap:14px}
.logo-mark{font-size:38px;filter:drop-shadow(0 4px 10px rgba(0,0,0,.5))}
.logo h1{font-size:23px;font-weight:900;letter-spacing:.6px;line-height:1.1}
.logo h1 em{font-style:normal;color:var(--accent);text-shadow:0 2px 0 #b8791a}
.logo p{font-size:12px;color:var(--dim);margin-top:3px}
.topbar-right{display:flex;align-items:center;gap:10px}
.ping-chip{background:var(--panel);border:1px solid var(--panel-line);border-radius:999px;padding:7px 14px;font-size:12px;color:var(--dim)}
.ping-chip b{color:var(--green);font-size:13px}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:5px;vertical-align:-1px}
.dot.good{background:var(--green);box-shadow:0 0 8px var(--green)}
.dot.mid{background:var(--accent)}
.dot.bad{background:var(--red)}

/* ---------- 레이아웃 ---------- */
.lobby-grid{
  display:grid;gap:14px;padding:0 18px 22px;
  grid-template-columns:minmax(280px,1.05fr) minmax(320px,1.25fr) minmax(280px,1fr);
  grid-template-areas:"parts preview roulette" "parts track room";
  align-items:start;
}
.parts-panel{grid-area:parts}
.preview-panel{grid-area:preview}
.roulette-panel{grid-area:roulette}
.track-panel{grid-area:track}
.room-panel{grid-area:room}

.panel{
  background:var(--panel);border:1px solid var(--panel-line);border-radius:var(--radius);
  padding:14px;backdrop-filter:blur(10px);box-shadow:0 12px 34px rgba(0,0,0,.32)
}
.panel-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:10px;gap:8px}
.panel-head h2{font-size:15px;font-weight:800;letter-spacing:.3px}
.hint{font-size:11px;color:var(--dim);text-align:right}

/* ---------- 탭 / 파츠 ---------- */
.tabs{display:flex;gap:6px;margin-bottom:10px;flex-wrap:wrap}
.tab{
  flex:1;min-width:64px;padding:8px 6px;border:1px solid var(--panel-line);border-radius:10px;
  background:rgba(255,255,255,.04);color:var(--dim);font-size:12px;font-weight:700;transition:.15s
}
.tab:hover{background:rgba(255,255,255,.1);color:#fff}
.tab.active{background:linear-gradient(180deg,var(--accent),#e0a715);color:#221a02;border-color:transparent}
.part-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(96px,1fr));gap:8px;max-height:384px;overflow-y:auto;padding-right:4px}
.part-card{
  border:1px solid var(--panel-line);border-radius:12px;background:rgba(255,255,255,.04);
  padding:8px 6px;text-align:center;transition:.15s;position:relative;overflow:hidden
}
.part-card:hover{transform:translateY(-2px);background:rgba(255,255,255,.1)}
.part-card.sel{border-color:var(--accent);background:rgba(255,213,74,.14);box-shadow:0 0 0 1px var(--accent) inset}
.part-card .thumb{display:block;margin:0 auto 3px;border-radius:8px;width:88px;height:66px;object-fit:contain;
  background:radial-gradient(60% 60% at 50% 60%,rgba(80,120,220,.20),transparent 70%)}
.part-card .nm{font-size:11px;font-weight:700;line-height:1.25}
.part-card .cl{font-size:9.5px;color:var(--dim);margin-top:2px}
.part-desc{margin-top:10px;font-size:11.5px;color:var(--dim);line-height:1.5;min-height:34px}

/* ---------- 프리뷰 ---------- */
.preview-stage{position:relative;border-radius:12px;overflow:hidden;background:
  radial-gradient(400px 220px at 50% 120%, #2b3a7a 0%, transparent 70%),linear-gradient(180deg,#0d1330,#060913)}
#previewCanvas{display:block;width:100%;height:300px}
.preview-badges{position:absolute;top:10px;left:10px;display:flex;gap:6px}
.badge{background:rgba(0,0,0,.5);border:1px solid var(--panel-line);border-radius:999px;padding:4px 11px;font-size:11px;font-weight:800}
.badge.alt{color:var(--accent)}
.spin-btn{position:absolute;bottom:10px;right:10px;font-size:11px;padding:5px 11px}
.export-btn{position:absolute;bottom:10px;right:72px;font-size:11px;padding:5px 11px}

/* ---------- 스탯 바 ---------- */
.stats{margin-top:12px;display:grid;gap:7px}
.stat{display:grid;grid-template-columns:56px 1fr 38px;align-items:center;gap:9px}
.stat .lb{font-size:11.5px;color:var(--dim);font-weight:700}
.stat .track-bar{height:11px;background:rgba(255,255,255,.08);border-radius:6px;overflow:hidden;position:relative}
.stat .fill{display:block;height:100%;border-radius:6px;transition:width .28s cubic-bezier(.3,1.4,.5,1);
  background:linear-gradient(90deg,var(--accent2),var(--accent))}
.stat .fill.up{background:linear-gradient(90deg,#6ef58f,#d9ff4f)}
.stat .fill.down{background:linear-gradient(90deg,#ff6a6a,#ffb04a)}
.stat .vl{font-size:11.5px;font-weight:800;text-align:right;font-variant-numeric:tabular-nums}
.flavor{margin-top:10px;font-size:11.5px;line-height:1.6;color:#b9c6e8;border-left:2px solid var(--accent);padding-left:9px}

/* ---------- 룰렛 ---------- */
.rank-row{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.rank-row label{font-size:11.5px;color:var(--dim);white-space:nowrap}
.rank-row input[type=range]{flex:1;accent-color:var(--accent)}
.rank-val{font-size:13px;font-weight:900;color:var(--accent);min-width:34px;text-align:right}
.roulette-stage{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.roulette-slot{
  width:78px;height:78px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  font-size:42px;background:rgba(0,0,0,.42);border:2px solid var(--panel-line)
}
.roulette-slot img{width:60px;height:60px;object-fit:contain}
.roulette-slot.spinning{border-color:var(--accent);animation:pulse .18s infinite alternate}
@keyframes pulse{to{transform:scale(1.06) rotate(2deg)}}
.prob-list{display:grid;gap:4px;max-height:176px;overflow-y:auto}
.prob{display:grid;grid-template-columns:22px 1fr 44px;align-items:center;gap:7px;font-size:11px}
.prob img{width:22px;height:22px;object-fit:contain;image-rendering:auto}
.prob .pb{height:9px;background:rgba(255,255,255,.08);border-radius:5px;overflow:hidden}
.prob .pf{display:block;height:100%;border-radius:5px}
.prob .pv{text-align:right;color:var(--dim);font-variant-numeric:tabular-nums}
.roll-log{margin-top:9px;font-size:11px;color:var(--dim);min-height:16px;line-height:1.5}

/* ---------- 트랙 카드 ---------- */
.track-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}
.track-card{
  border:1px solid var(--panel-line);border-radius:12px;overflow:hidden;background:rgba(255,255,255,.04);
  text-align:left;transition:.15s;position:relative
}
.track-card:hover{transform:translateY(-2px)}
.track-card.sel{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset}
.track-card canvas{display:block;width:100%;height:74px}
.track-card .tinfo{padding:8px}
.track-card .tn{font-size:12px;font-weight:800}
.track-card .ts{font-size:9.5px;color:var(--dim);margin-top:1px}
.track-card .td{font-size:10px;color:#a8b6dc;margin-top:5px;line-height:1.45;overflow:hidden;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical}
.diff{position:absolute;top:7px;right:7px;background:rgba(0,0,0,.6);border-radius:999px;padding:2px 8px;font-size:9.5px;font-weight:800;color:var(--accent)}

/* ---------- 파티 룸 ---------- */
.slots{display:grid;grid-template-columns:1fr;gap:6px;max-height:330px;overflow-y:auto}
.slot{display:flex;align-items:center;gap:8px;min-width:0;overflow:hidden;padding:7px 9px;border-radius:10px;background:rgba(255,255,255,.04);border:1px solid var(--panel-line)}
.slot.me{border-color:var(--accent2);background:rgba(79,195,255,.1)}
.slot .av{width:28px;height:28px;border-radius:50%;flex:none;display:grid;place-items:center;font-size:13px;font-weight:900;color:#0b0f1e}
.slot .info{flex:1;min-width:0;display:flex;flex-direction:column;gap:1px}
.slot .nm{font-size:11.5px;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.slot .sp{font-size:9.5px;color:var(--dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.slot .st{font-size:9.5px;font-weight:900;padding:2px 7px;border-radius:999px;white-space:nowrap}
.st.ready{background:rgba(142,242,168,.18);color:var(--green)}
.st.wait{background:rgba(255,213,74,.16);color:var(--accent)}
.slot .pg{font-size:9px;color:var(--dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.room-foot{display:flex;gap:8px;align-items:center;margin-top:11px;flex-wrap:wrap}
.cpu-diff{font-size:11px;color:var(--dim);display:flex;align-items:center;gap:5px}
.cpu-diff select{background:rgba(255,255,255,.07);color:var(--txt);border:1px solid var(--panel-line);border-radius:8px;padding:5px 7px;font-size:11px;font-family:inherit}

/* ---------- 버튼 ---------- */
.primary-btn{
  background:linear-gradient(180deg,#ffd54a,#e0a715);color:#241a02;border:none;border-radius:11px;
  padding:10px 18px;font-weight:900;font-size:13px;box-shadow:0 5px 0 #9a7210,0 10px 18px rgba(0,0,0,.35);transition:.12s
}
.primary-btn:hover{transform:translateY(-1px)}
.primary-btn:active{transform:translateY(3px);box-shadow:0 2px 0 #9a7210}
.primary-btn:disabled{opacity:.42;box-shadow:none;transform:none;cursor:not-allowed}
.primary-btn.go{background:linear-gradient(180deg,#8ef2a8,#33b45f);box-shadow:0 5px 0 #1f7a3f,0 10px 18px rgba(0,0,0,.35);margin-left:auto}
.primary-btn.small{padding:8px 14px;font-size:12px}
.ghost-btn{background:rgba(255,255,255,.07);border:1px solid var(--panel-line);color:var(--txt);border-radius:10px;padding:8px 14px;font-size:12px;font-weight:700;transition:.12s}
.ghost-btn:hover{background:rgba(255,255,255,.15)}

/* ---------- 로딩 ---------- */
#loading{background:rgba(6,9,19,.96);z-index:40}
#loading.active{display:flex}
.loader{text-align:center;width:min(420px,86vw)}
.loader-kart{font-size:58px;animation:zoom 1.1s infinite ease-in-out}
@keyframes zoom{0%,100%{transform:translateX(-10px) rotate(-4deg)}50%{transform:translateX(10px) rotate(4deg)}}
.loader h2{font-size:17px;margin:12px 0 14px;font-weight:800}
.bar{height:9px;background:rgba(255,255,255,.1);border-radius:5px;overflow:hidden}
.bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--accent2),var(--accent));transition:width .25s}
.loader p{margin-top:12px;font-size:11.5px;color:var(--dim);line-height:1.6;min-height:36px}

/* ---------- 레이스 ---------- */
#race{background:#000}
#gameCanvas,#hudCanvas{position:absolute;inset:0;width:100%;height:100%}
#hudCanvas{pointer-events:none}
.pause-btn{position:absolute;top:12px;left:50%;transform:translateX(-50%);z-index:6;
  background:rgba(10,14,28,.55);border:1px solid var(--panel-line);color:#fff;border-radius:9px;
  width:40px;height:30px;font-weight:900;letter-spacing:2px}
.rotate-hint{position:absolute;top:38%;left:50%;transform:translateX(-50%);z-index:7;
  background:rgba(10,14,28,.72);border:1px solid var(--panel-line);color:#fff;border-radius:999px;
  padding:6px 14px;font-size:12px;font-weight:700;pointer-events:none}
.rotate-hint.hidden{display:none}
.touch{display:none;position:absolute;inset:auto 0 0 0;padding:16px;justify-content:space-between;z-index:5;pointer-events:none}
.touch .pad{display:flex;gap:10px;align-items:flex-end;pointer-events:auto}
.tbtn{width:64px;height:64px;border-radius:50%;border:1px solid rgba(255,255,255,.3);
  background:rgba(12,16,32,.55);color:#fff;font-size:15px;font-weight:800;backdrop-filter:blur(5px)}
.tbtn.wide{width:78px;border-radius:20px;font-size:12px}
.tbtn.accel{background:rgba(142,242,168,.28);width:78px;height:78px}
.tbtn:active{background:rgba(255,213,74,.45)}
body.touch-mode .touch{display:flex}

/* ---------- 모달 / 결과 ---------- */
.modal{position:absolute;inset:0;background:rgba(4,6,14,.8);display:flex;align-items:center;justify-content:center;z-index:50;backdrop-filter:blur(5px)}
.modal.hidden{display:none}
.modal-box{background:var(--panel);border:1px solid var(--panel-line);border-radius:18px;padding:22px;width:min(460px,90vw);text-align:center}
.modal-box.wide{width:min(880px,94vw);text-align:left}
.modal-box h2{font-size:20px;font-weight:900;margin-bottom:14px}
.modal-actions{display:flex;gap:10px;justify-content:center;margin-top:18px}
.help-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.help-grid h3{font-size:13px;color:var(--accent);margin-bottom:8px}
.help-grid ul{list-style:none;display:grid;gap:6px}
.help-grid li{font-size:12px;color:#b9c6e8;line-height:1.5}
.help-grid b{color:#fff}
#results{background:radial-gradient(900px 600px at 50% 0%,#2a3a80 0%,#060913 70%)}
.result-box{background:var(--panel);border:1px solid var(--panel-line);border-radius:18px;padding:24px;width:min(560px,92vw)}
.result-box h2{text-align:center;font-size:26px;font-weight:900;margin-bottom:16px;color:var(--accent)}
.result-table{width:100%;border-collapse:collapse}
.result-table td{padding:8px 6px;font-size:13px;border-bottom:1px solid rgba(255,255,255,.07)}
.result-table tr.me{background:rgba(255,213,74,.12)}
.result-table .pos{font-weight:900;width:44px;color:var(--accent)}
.result-table .tm{text-align:right;font-variant-numeric:tabular-nums;color:var(--dim);font-size:12px}

/* ---------- 반응형 ---------- */
@media (max-width:1100px){
  .lobby-grid{grid-template-columns:1fr 1fr;grid-template-areas:"preview preview" "parts roulette" "track room"}
  .slots{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  .lobby-grid{grid-template-columns:1fr;grid-template-areas:"preview" "parts" "roulette" "track" "room"}
  .logo h1{font-size:18px}
  .track-cards{grid-template-columns:1fr}
  .slots{grid-template-columns:1fr}
}