:root{
  --bg:#0f1420; --panel:#171f31; --panel2:#1d2740; --txt:#e8ecf5; --mut:#8b95ad;
  --acc:#4f8cff; --good:#35c46f; --warn:#f0b429; --bad:#e5484d;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--txt);font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;line-height:1.45}
header{padding:16px 16px 10px;border-bottom:1px solid #26304a}
header h1{margin:0;font-size:22px}
header h1 span{color:var(--acc)}
.tag{color:var(--mut);font-size:13px;margin:4px 0 0}
main{max-width:760px;margin:0 auto;padding:14px 16px 80px}
section{margin:18px 0}
h2{font-size:16px;color:var(--acc);margin:0 0 10px;letter-spacing:.4px}
.cam-wrap{position:relative;background:#000;border-radius:14px;overflow:hidden;min-height:220px}
.cam-wrap video,.cam-wrap img,.cam-wrap canvas{width:100%;display:block;border:0}
.cam-wrap img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;z-index:2}
#preview.ready{position:static}
#cam-overlay{position:absolute;inset:0;z-index:5;pointer-events:none}
#cam-overlay.clickable{pointer-events:auto;cursor:crosshair}
.msg{padding:10px;color:var(--mut);font-size:13px;background:#10162a}
.btn-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
button{background:var(--panel2);color:var(--txt);border:1px solid #33406a;border-radius:10px;padding:10px 14px;font-size:14px;cursor:pointer}
button:hover{border-color:var(--acc)}
button:disabled{opacity:.45;cursor:default}
#btn-cam,#btn-snap{background:#22366b;border-color:#35508f}
.hint{color:var(--mut);font-size:13px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media(max-width:560px){.grid2{grid-template-columns:1fr}}
.card{background:var(--panel);border-radius:12px;padding:12px}
.card h3{margin:0 0 8px;font-size:14px}
.slot-row{display:flex;gap:8px;flex-wrap:wrap;min-height:40px}
.slot{display:inline-flex;align-items:center;justify-content:center;min-width:54px;height:68px;padding:6px 8px;border-radius:8px;font-weight:700;cursor:pointer;background:var(--panel2);border:1px solid #33406a;position:relative}
.slot.empty{color:var(--mut);font-weight:400;font-size:12px;min-width:90px;height:auto;align-items:flex-start}
.slot.red{color:#ff6b70;background:#2a1620;border-color:#5c2633}
.slot.black{color:#e8ecf5;background:#141b2e;border-color:#33406a}
.slot .rm{position:absolute;top:-7px;right:-7px;background:var(--bad);color:#fff;border-radius:50%;width:18px;height:18px;font-size:11px;line-height:18px;text-align:center;cursor:pointer}
label{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--mut)}
select,input{border:1px solid #33406a;border-radius:8px;background:var(--panel2);color:var(--txt);padding:9px;font-size:14px}
.advice{background:linear-gradient(180deg,#16223c,#101a30);border:1px solid #2c3d66;border-radius:14px;padding:16px;margin-top:14px}
.advice .placeholder{color:var(--mut);margin:0}
.advice h3{margin:0 0 8px;font-size:15px}
.advice .rec{font-size:19px;font-weight:700;margin:4px 0}
.advice .rec.good{color:var(--good)} .advice .rec.ok{color:var(--warn)} .advice .rec.bad{color:var(--bad)}
.advice table{width:100%;border-collapse:collapse;font-size:13px;margin-top:8px}
.advice td{padding:4px 6px;border-bottom:1px solid #24314f}
.advice td.k{color:var(--mut)}
.why{background:#0d1526;border-left:3px solid var(--acc);padding:10px 12px;border-radius:0 8px 8px 0;margin-top:10px;font-size:13.5px}
ul{margin:6px 0 0;padding-left:20px} li{margin:6px 0;color:var(--txt)}
.overlay{position:fixed;inset:0;background:rgba(5,8,16,.85);z-index:50;display:flex;align-items:center;justify-content:center;padding:16px}
.hidden{display:none!important}
.editor-box{background:var(--panel);border-radius:14px;padding:16px;max-width:420px;width:100%;max-height:92vh;overflow:auto}
.crop-row{display:flex;gap:12px;align-items:flex-start}
#ed-crop{background:#fff;border-radius:8px}
.detect{font-size:13px;color:var(--mut);max-width:200px}
.rank-row{display:flex;flex-wrap:wrap;gap:6px;margin:12px 0 8px}
.rank-row button{min-width:44px;padding:8px}
.suit-row{display:flex;gap:6px;margin-bottom:12px}
.suit-row button{font-size:18px;min-width:54px}
.suit-row .red{color:#ff6b70} .suit-row .black{color:#e8ecf5}
.rank-row .sel,.suit-row .sel{outline:2px solid var(--acc);border-color:var(--acc)}
.big{display:block;width:100%;padding:14px;font-size:16px;margin-top:10px;background:#22366b;border-color:#35508f}
.mode-row{display:flex;gap:10px}
.mode{flex:1;padding:14px;font-size:15px;background:var(--panel2)}
.mode.active{background:#22366b;border-color:#4f8cff;font-weight:700}
.linkish{background:none;border:none;color:var(--acc);text-decoration:underline;cursor:pointer;padding:6px}
.lbl{color:var(--mut);font-weight:400;font-size:12px}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:#22366b;color:#fff;padding:10px 18px;border-radius:20px;font-size:14px;z-index:60}