@font-face{font-family:PFD;src:url(/assets/fonts/PlayfairDisplay-VF.ttf);font-weight:400 900;font-display:swap}
@font-face{font-family:BVP;src:url(/assets/fonts/BeVietnamPro-Medium.ttf);font-weight:500;font-display:swap}
@font-face{font-family:BVP;src:url(/assets/fonts/BeVietnamPro-Bold.ttf);font-weight:700;font-display:swap}
:root{--paper:#f2e6c8;--paper2:#e9d9b0;--ink:#3a2412;--brown:#6b3f1d;--gold:#b8860b;--gold2:#e0b84a;--red:#8c1c13;--dark:#241509}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:BVP,system-ui,sans-serif;color:var(--ink);background:var(--paper);line-height:1.6;
 background-image:radial-gradient(circle at 20% 10%,rgba(184,134,11,.12),transparent 40%),radial-gradient(circle at 90% 80%,rgba(140,28,19,.1),transparent 45%),repeating-linear-gradient(45deg,rgba(107,63,29,.035) 0 2px,transparent 2px 6px)}
a{color:inherit}h1,h2,h3{font-family:PFD,Georgia,serif;margin:0}
.top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 22px;background:var(--dark);color:var(--paper)}
.top a{text-decoration:none;font-weight:700}.top .brand{display:flex;align-items:center;gap:8px;font-family:PFD,serif;font-size:20px}.top .brand b{color:var(--gold2)}
.stat{display:flex;gap:14px;align-items:center;font-size:14px}.stat span{background:rgba(255,255,255,.1);border-radius:999px;padding:4px 12px}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
.hero{padding:52px 0 26px;text-align:center}.hero small{letter-spacing:.2em;text-transform:uppercase;color:var(--red);font-weight:700}
.hero h1{font-size:clamp(34px,6vw,64px);line-height:1.08;margin:10px 0}.hero h1 em{color:var(--red)}
.hero p{max-width:640px;margin:0 auto 22px;color:#5a4128;font-size:18px}
.rank{display:inline-flex;gap:14px;align-items:center;background:#fff8e3;border:2px solid var(--gold);border-radius:16px;padding:12px 20px;box-shadow:0 6px 0 rgba(107,63,29,.18)}
.bar{width:180px;height:10px;background:#e6d5a5;border-radius:6px;overflow:hidden}.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--gold),var(--red));width:0;transition:width .6s}
.modes{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:30px 0}
.mode{background:#fff8e3;border:2px solid var(--brown);border-radius:6px;padding:20px;cursor:pointer;text-align:left;font:inherit;color:inherit;position:relative;transition:transform .2s,box-shadow .2s;box-shadow:5px 5px 0 var(--brown)}
.mode:hover{transform:translate(-3px,-3px);box-shadow:8px 8px 0 var(--brown)}.mode .i{font-size:36px}.mode h3{font-size:21px;margin:6px 0 4px}.mode p{margin:0;font-size:14.5px;color:#6a4d2e}
.mode.on{background:var(--dark);color:var(--paper);box-shadow:5px 5px 0 var(--gold)}.mode.on p{color:#d9c69c}
.stage{background:#fff8e3;border:3px double var(--brown);border-radius:8px;padding:30px;margin-bottom:34px;min-height:380px;position:relative}
.rk-i{font-size:30px}.stage-auto{min-height:0}
.stage h2{font-size:30px;margin-bottom:6px}.muted{color:#7a5c3a}
.btn{display:inline-block;background:var(--red);color:#fff;border:0;border-radius:4px;padding:12px 24px;font:inherit;font-weight:700;cursor:pointer;box-shadow:0 4px 0 #5a110b;transition:.15s}.btn:hover{transform:translateY(-2px)}.btn:active{transform:translateY(2px);box-shadow:0 1px 0 #5a110b}
.btn.alt{background:var(--brown);box-shadow:0 4px 0 #3a2412}.btn.gold{background:var(--gold2);color:var(--ink);box-shadow:0 4px 0 #8a6d1c}
.tl{list-style:none;padding:0;margin:20px 0;display:grid;gap:10px}
.ev{display:flex;gap:12px;align-items:center;background:#fffdf4;border:2px solid #cdb582;border-radius:8px;padding:14px 16px;cursor:pointer;transition:.15s;font:inherit;text-align:left;width:100%;color:inherit}
.ev:hover{border-color:var(--gold);transform:translateX(4px)}.ev.picked{background:#efe0b3;border-color:var(--brown);cursor:default}
.ev .n{width:34px;height:34px;border-radius:50%;background:var(--paper2);display:grid;place-items:center;font-weight:700;flex:none}.ev.picked .n{background:var(--brown);color:#fff}
.ev .y{margin-left:auto;font-family:PFD,serif;font-weight:700;color:var(--red);opacity:0}.ev.show .y{opacity:1}
.ev.ok{background:#e1f0d4;border-color:#4b8a2e}.ev.bad{background:#f6d9d4;border-color:var(--red)}
.fb{margin:14px 0;padding:14px 18px;border-left:5px solid var(--gold);background:#f5e9c4;border-radius:4px}
.opt{display:block;width:100%;text-align:left;margin:10px 0;padding:14px 18px;border:2px solid #cdb582;background:#fffdf4;border-radius:8px;font:inherit;cursor:pointer;color:inherit;transition:.15s}
.opt:hover{border-color:var(--gold);transform:translateX(4px)}.opt.ok{background:#e1f0d4;border-color:#4b8a2e}.opt.no{background:#f6d9d4;border-color:var(--red)}
.scene{background:linear-gradient(135deg,#2e1a0c,#4a2b13);color:var(--paper);border-radius:8px;padding:20px 24px;margin:14px 0;font-family:PFD,serif;font-size:19px}
.clue{padding:12px 16px;margin:8px 0;background:#fffdf4;border:2px dashed #cdb582;border-radius:8px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px;margin-top:16px}
.card{background:#fffdf4;border:2px solid var(--brown);border-radius:6px;padding:16px;text-align:center}.card.lock{filter:grayscale(1);opacity:.55}
.card .i{font-size:40px}.card h4{font-family:PFD,serif;margin:6px 0 4px;font-size:18px}.card p{margin:0;font-size:13.5px;color:#6a4d2e}
.par{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:14px}.par h3{font-size:22px;border-bottom:3px solid var(--gold);padding-bottom:4px;margin-bottom:10px}
.par li{margin:6px 0;list-style:none;padding-left:0}.par b{color:var(--red);font-family:PFD,serif}
.note{font-size:13px;color:#7a5c3a;margin:26px 0 40px;text-align:center}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(120px);background:var(--dark);color:var(--gold2);padding:12px 22px;border-radius:999px;font-weight:700;transition:.4s;z-index:20}.toast.on{transform:translateX(-50%)}
@media(max-width:860px){.modes{grid-template-columns:1fr 1fr}.par{grid-template-columns:1fr}.stage{padding:20px}.stat{display:none}}
@media(max-width:520px){.modes{grid-template-columns:1fr}}
/* vùng chạm ≥44px (cổng UI mobile) */
.top .brand,.stat a{min-height:44px;display:inline-flex;align-items:center}.note a{display:inline-flex;align-items:center;justify-content:center;min-height:44px;min-width:44px;padding:0 4px;vertical-align:middle;white-space:nowrap}
.muted b{white-space:nowrap}
.toast{opacity:0;visibility:hidden;pointer-events:none}.toast.on{opacity:1;visibility:visible}.toast:empty{display:none}