/* Curated feature panel: independent of legacy overlay, mouse and touch friendly. */
#premiumExperiencePanel[hidden],#premiumNotify[hidden]{display:none!important}
.premium-shade{position:fixed;inset:0;z-index:1003;background:rgba(3,10,24,.9);display:flex;align-items:center;justify-content:center;padding:12px;overscroll-behavior:contain}
.premium-window{width:min(930px,100%);max-height:94dvh;overflow:hidden;display:flex;flex-direction:column;background:linear-gradient(145deg,#233047,#111d2f);border:1px solid #d9c591;border-radius:20px;box-shadow:0 20px 100px #000d;color:#fcf7eb}
.premium-toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:18px 23px;border-bottom:1px solid #ffffff27}.premium-toolbar strong{color:#ffdf96;font-size:17px}
.premium-content{padding:12px 24px 25px;overflow-y:auto;scrollbar-color:#8f9ab2 transparent}.premium-head h2{margin:10px 0;color:#fae2a8;font-size:25px}.premium-head p{color:#d1e0ea;line-height:1.8;margin:4px 0 15px;font-size:13px}
.premium-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(235px,1fr));gap:12px}.premium-card{padding:15px;margin:8px 0 14px;background:#243652;border:1px solid #64718b;border-radius:15px;box-shadow:0 4px 0 #0b1423}.premium-card h3{color:#ffe3a3;font-size:16px;margin:0 0 7px}.premium-card p{font-size:13px;color:#d4e1ed;line-height:1.7;margin:0 0 13px}
.premium-btn{display:inline-flex;align-items:center;justify-content:center;margin:4px 7px 4px 0;padding:9px 13px;min-height:43px;border-radius:10px;border:1px solid #ffe0a2;background:#f6d48c;color:#202b3d;font-weight:800;font-size:13px;cursor:pointer}.premium-btn:hover{filter:brightness(1.08)}.premium-btn:focus-visible{outline:3px solid #8de4ff;outline-offset:2px}.premium-outline{background:#303e58;color:#fff1c3;border-color:#9aa8bb}.premium-buttons{display:flex;flex-wrap:wrap;gap:6px}
.premium-input{width:min(390px,100%);height:44px;background:#0c1b2d;border:1px solid #a7b0c5;padding:8px 10px;color:#fff;border-radius:10px;outline-offset:3px}
.premium-note{color:#c4cddd;font-size:12px;line-height:1.7}.premium-achievement{padding:17px 13px;background:linear-gradient(95deg,#5e487e,#376c79);font-size:17px;font-weight:800;border-radius:12px;border:1px solid #e6c78a;margin:12px 0}
.premium-diagram{white-space:pre-wrap;text-align:center;color:#d8edff;background:#111c34;border:1px solid #5b89b1;padding:24px 6px;font-size:clamp(12px,2.7vw,18px);border-radius:13px;line-height:2}
#premiumNotify{position:fixed;bottom:23%;left:50%;transform:translateX(-50%);max-width:min(490px,90vw);background:#182b3e;color:#ffefc7;padding:14px 20px;border:2px solid #e6bf81;border-radius:13px;z-index:1010;text-align:center;font-size:14px;line-height:1.6;box-shadow:0 8px 30px #000c}
#premiumBurst{position:fixed;left:50%;top:25%;transform:translateX(-50%);width:90vw;text-align:center;color:#ffdf95;background:#291f49ee;border:2px solid #fff0bc;border-radius:16px;padding:19px;font-size:clamp(18px,4vw,32px);font-weight:900;z-index:1008;box-shadow:0 15px 70px #000;animation:premium-pop 1s ease-out}
@keyframes premium-pop{0%{opacity:.1;transform:translateX(-50%) scale(.8)}100%{opacity:1;transform:translateX(-50%) scale(1)}}
@media(max-width:520px){.premium-shade{padding:6px}.premium-window{max-height:96dvh;border-radius:12px}.premium-toolbar{padding:11px}.premium-toolbar strong{font-size:13px}.premium-content{padding:10px 14px 18px}.premium-head h2{font-size:19px}.premium-grid{grid-template-columns:1fr}.premium-card{margin:6px 0}.premium-btn{font-size:12px;padding:8px;min-height:42px}#mobileBtns .premium-entry{display:block;grid-column:1/-1;height:38px!important;min-height:36px;width:100%;margin:0}}

/* V5.5 progression and route overlay */
.premium-mastery{margin:10px 0 16px;background:linear-gradient(90deg,#46406d,#284c67);color:#ffe7a4;font-weight:800;padding:15px;border:1px solid #ad8fc9;border-radius:12px}
.premium-navigation[hidden]{display:none!important}.premium-navigation{position:fixed;top:68px;left:50%;transform:translateX(-50%);z-index:9;max-width:min(460px,88vw);background:#10243eea;border:1px solid #b6d9ed;border-radius:13px;padding:9px 17px;text-align:center;color:#f8edcb;font:800 12px/1.5 system-ui,sans-serif;box-shadow:0 4px 22px #0008;pointer-events:none}
.premium-burst{position:fixed;left:50%;top:25%;transform:translateX(-50%);width:90vw;text-align:center;color:#ffdf95;background:#291f49ee;border:2px solid #fff0bc;border-radius:16px;padding:19px;font-size:clamp(18px,4vw,32px);font-weight:900;z-index:1008;box-shadow:0 15px 70px #000;animation:premium-pop 1s ease-out}
@media(max-width:600px){.premium-navigation{top:auto;bottom:245px;max-width:75vw;font-size:11px;padding:7px 9px}.premium-mastery{font-size:12px}}
@media(prefers-reduced-motion:reduce){.premium-burst{animation:none}}