.centy-walkthrough{--centy-line:#36525a;--centy-soft:#bdd4cc;--centy-gold:#e9c66f;background:#10272b;color:#f1f2df;border:1px solid var(--centy-line);border-radius:14px;padding:18px;min-width:0;font-size:.92rem;line-height:1.5;box-sizing:border-box}
.centy-walkthrough h2{margin:0 0 6px;color:var(--centy-gold);font-size:1.3rem}
.centy-route-note{color:var(--centy-soft);font-size:.8rem;margin:8px 0 14px}
.centy-route-progress{margin:12px 0 8px;font-weight:700}
.centy-route-tabs{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-bottom:12px}
.centy-route-tabs button{cursor:pointer;border:1px solid var(--centy-line);background:#16383b;color:var(--centy-soft);border-radius:7px;padding:9px 5px;font:inherit;font-size:.85rem}
.centy-route-tabs button.is-active{color:#152c29;background:var(--centy-gold);border-color:var(--centy-gold);font-weight:700}
.centy-route-tabs button:focus-visible,.centy-route-step input:focus-visible,.centy-route-source:focus-visible,.centy-route-chapter summary:focus-visible{outline:3px solid #fff0b3;outline-offset:3px}
.centy-route-list{max-height:68vh;overflow:auto;scrollbar-color:#557871 #10272b;scrollbar-width:thin;padding-right:4px}
.centy-route-chapter{border-top:1px solid var(--centy-line);padding:11px 0}
.centy-route-chapter summary{cursor:pointer;font-weight:700;color:#e4e8cc;list-style-position:outside;margin-left:14px}
.centy-route-source{display:inline-block;color:var(--centy-gold);font-size:.75rem;margin:7px 0;text-underline-offset:3px}
.centy-route-steps{list-style:none;margin:0;padding:0}
.centy-route-step{padding:10px 0;border-bottom:1px solid #294248}
.centy-route-step:last-child{border-bottom:0}
.centy-route-step-label{display:flex;gap:9px;align-items:flex-start;cursor:pointer;color:#f2f0db;font-weight:600;line-height:1.4}
.centy-route-step input{width:18px;height:18px;flex:0 0 18px;margin:2px 0 0;accent-color:var(--centy-gold);cursor:pointer}
.centy-route-step p{margin:6px 0 0 27px;color:var(--centy-soft);font-size:.82rem;line-height:1.5}
.centy-route-empty{color:var(--centy-soft);padding:12px 0}
@media(max-width:900px){.centy-route-list{max-height:50vh}.centy-walkthrough{padding:14px}}