.four-signs-game{max-width:1200px;margin:0 auto;padding:clamp(1rem,3vw,2.5rem);color:#213a31;background:#f9f7ef;border-radius:1.5rem;box-shadow:0 18px 45px #0c233225;font-family:system-ui,sans-serif}
.four-signs-intro{max-width:850px;margin-bottom:1.5rem}
.four-signs-intro h1{font-size:clamp(2rem,4vw,3.3rem);font-weight:800;line-height:1.12}
.four-signs-intro p{font-size:1.05rem;line-height:1.6}
.four-signs-intro a{color:#145e5b;font-weight:750;text-underline-offset:.2em}
.four-signs-eyebrow{color:#a44829;text-transform:uppercase;letter-spacing:.12em;font-weight:800}
.four-signs-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(260px,1fr);gap:1.25rem}
.four-signs-main,.four-signs-side{background:#fff;border:1px solid #dbe5dd;border-radius:1.25rem;padding:clamp(1rem,2vw,1.6rem)}
.four-signs-meta{display:flex;gap:.6rem;flex-wrap:wrap;font-weight:750}
.four-signs-meta span{background:#e7f3f0;padding:.3rem .75rem;border-radius:999px}
.four-signs-meta span:nth-child(2){background:#fff0d9;color:#754818}
.four-signs-target{font-size:1.1rem;margin:1.3rem 0;font-weight:700}
.four-signs-target strong{font-size:2rem;color:#9d3c21}
.four-signs-expression{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:.35rem;padding:1.2rem .5rem;background:#edf4f0;border-radius:1rem}
.four-signs-number{display:grid;place-items:center;min-width:2.9rem;height:3.3rem;padding:0 .35rem;background:#fff;border:2px solid #bfd2ca;border-radius:.7rem;font-size:1.35rem;font-weight:800}
.four-signs-expression select{width:3.5rem;height:3.3rem;padding:.25rem;background:#1a6c69;color:#fff;border:2px solid #134f4d;border-radius:.7rem;font-size:1.35rem;font-weight:800;text-align:center;cursor:pointer}
.four-signs-expression select:focus-visible,.four-signs-actions button:focus-visible,.four-signs-navigation button:focus-visible,.four-signs-level-list button:focus-visible{outline:3px solid #bd6b41;outline-offset:2px}
.four-signs-status{min-height:3.3rem;margin:1rem 0;padding:.7rem .9rem;border-radius:.75rem;background:#eff6f3;font-weight:650}
.four-signs-status[data-tone=error]{background:#ffebe4;color:#8e3219}
.four-signs-status[data-tone=success]{background:#def5e7;color:#17643e}
.four-signs-status[data-tone=hint]{background:#e9edfb;color:#354893}
.four-signs-actions,.four-signs-navigation{display:flex;flex-wrap:wrap;gap:.55rem;margin:.8rem 0}
.four-signs-actions button,.four-signs-navigation button,.four-signs-level-list button{border:1px solid #93ada4;border-radius:.65rem;padding:.55rem .8rem;background:#fff;color:#173d34;font-weight:700}
.four-signs-actions button:first-child{background:#176e6b;border-color:#176e6b;color:#fff}
.four-signs-actions button:hover,.four-signs-navigation button:hover,.four-signs-level-list button:hover{filter:brightness(.94)}
.four-signs-navigation button:disabled{opacity:.5;cursor:not-allowed}
.four-signs-step-panel{margin-top:1.25rem;border-top:1px solid #dbe5dd;padding-top:1rem}
.four-signs-step-panel h2{font-size:1.3rem;font-weight:800}
.four-signs-step-panel ol{padding:1rem 1rem 1rem 2.3rem;background:#f4f6ec;border-radius:.8rem;font-variant-numeric:tabular-nums}
.four-signs-step-panel li{margin-bottom:.3rem}
.four-signs-side h2{font-size:1.35rem;font-weight:800}
.four-signs-level-list{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:.4rem}
.four-signs-level-list button{padding:.45rem .2rem}
.four-signs-level-list button.is-active{background:#146966;color:#fff;border-color:#146966}
.four-signs-level-list button.is-complete:not(.is-active){background:#d9f1e3;border-color:#66a881}
.four-signs-source{margin-top:1.3rem;padding-top:1rem;border-top:1px solid #dbe5dd;color:#61726b;font-size:.9rem;line-height:1.5}
@media(max-width:850px){.four-signs-layout{grid-template-columns:1fr}.four-signs-side{order:-1}}
@media(max-width:520px){.four-signs-expression{flex-wrap:nowrap;justify-content:flex-start;overflow-x:auto;gap:.2rem;padding:.8rem .4rem}.four-signs-number{min-width:2.35rem;height:2.7rem;font-size:1.05rem}.four-signs-expression select{flex:none;width:2.65rem;height:2.7rem;font-size:1.05rem}.four-signs-level-list{grid-template-columns:repeat(7,minmax(0,1fr))}}