:root{ --panel:#ffffff; --text:#0b1220; --accent:#2f6fb3; --good:#43a047; --bad:#e53935; }
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,Segoe UI,Roboto,Helvetica,Arial;background:linear-gradient(180deg,#e8f1ff,#fff)}
.app{max-width:1060px;margin:0 auto;padding:16px;display:grid;gap:12px}
.header{display:flex;align-items:center;justify-content:space-between;background:var(--panel);padding:12px 16px;border-radius:16px;box-shadow:0 6px 20px rgba(0,0,0,.08)}
.brand{display:flex;gap:10px;align-items:center}
.brand-logo{height:36px;width:auto;border-radius:6px;object-fit:contain;background:#fff;padding:2px;box-shadow:0 1px 4px rgba(0,0,0,.08)}
.badges{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.badge{background:#eef2ff;color:#0b1220;padding:6px 10px;border-radius:999px;font-weight:700}
.btn{border:0;background:#111827;color:#fff;border-radius:12px;padding:10px 14px;font-weight:800;cursor:pointer;box-shadow:0 6px 12px rgba(0,0,0,.15)}
.btn.secondary{background:#e5e7eb;color:#111827}
.main{display:grid;grid-template-columns:1fr 360px;gap:12px}
@media (max-width:960px){.main{grid-template-columns:1fr}}
.panel{background:var(--panel);border-radius:16px;box-shadow:0 6px 20px rgba(0,0,0,.08);padding:12px}
.levelmap{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px}
.level{border:2px solid #e5e7eb;border-radius:14px;padding:10px;display:grid;gap:8px;cursor:pointer;transition:.2s}
.level:hover{transform:translateY(-2px);box-shadow:0 10px 20px rgba(0,0,0,.08)}
.level img{width:100%;height:120px;object-fit:contain}
.level .name{font-weight:800}
.formula{font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; background:#f8fafc;border-radius:12px;padding:8px 10px;border:1px solid #e5e7eb}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:8px}
.form-row input, .form-row select{width:100%;padding:10px;border:1px solid #e5e7eb;border-radius:10px}
.hint{padding:8px 10px;border-left:4px solid var(--accent);background:#f5f3ff;border-radius:8px}
.stage{display:grid;gap:8px}
.stage-top{display:flex;gap:12px;align-items:center}
.stage-top img{width:140px;height:140px;object-fit:contain}
.fx{height:10px}
.msg{padding:8px 10px;border-radius:10px}
.msg.good{background:#ecfdf5;border:1px solid #a7f3d0;color:#065f46}
.msg.bad{background:#fef2f2;border:1px solid #fecaca;color:#7f1d1d}
.footer{font-size:12px;color:#64748b;text-align:center;padding:8px}
.footer a{color:#2563eb;text-decoration:none} .footer a:hover{text-decoration:underline}
.timer{font-weight:900}
.avatar-box{position:fixed;right:16px;bottom:16px;display:flex;gap:8px;align-items:flex-start;z-index:10;cursor:pointer}
.avatar-bubble{max-width:280px;background:#fff;border-radius:12px;padding:10px 12px;box-shadow:0 6px 18px rgba(0,0,0,.15);border-left:4px solid var(--accent)}
.avatar-img{width:48px;height:48px}
.avatar-speaking #avatarText { box-shadow:0 0 0 4px rgba(47,111,179,.15); }
@keyframes paw-wave { 0%{transform:rotate(0)} 50%{transform:rotate(-8deg)} 100%{transform:rotate(0)} }
.mia-celebrate { animation: paw-wave .6s ease-in-out 2; }
#panel-formulas{display:none}
.formulas-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.formula-card{border:1px solid #e5e7eb;border-radius:12px;padding:10px;display:grid;gap:6px}
.formula-card img{width:100%;height:140px;object-fit:contain;background:#fff;border:1px solid #e5e7eb;border-radius:8px}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.4);display:none;align-items:center;justify-content:center}
.modal>div{background:#fff;border-radius:14px;padding:16px;max-width:520px;width:92%}
.modal.show{display:flex}
/* Help highlight */
.highlight-blink { animation: blink-bg 1s ease-in-out 0s 3; }
@keyframes blink-bg { 0%,100%{background-color:#fff9c4} 50%{background-color:transparent} }
#formulaExpl{background:#fff;border:1px solid #e5e7eb;border-radius:8px;padding:8px;margin-top:6px}