.est{margin:1.5rem 0 2rem;padding:1.1rem 1.25rem;border:1px solid var(--line);border-radius:14px}
.est h2{margin-top:0}
.est-intro,.est-help,.est-note{color:var(--muted);font-size:.92rem}
.est-intro strong{color:inherit}
.est-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(180px,100%),1fr));gap:.7rem;margin:.6rem 0}
.est-grid label{display:flex;flex-direction:column;gap:.25rem;font-size:.8rem;color:var(--muted)}
.est-row{display:flex;gap:.4rem;align-items:center}
.est input,.est select{min-width:0;width:100%;padding:.55rem .6rem;border-radius:10px;border:1px solid var(--line);background:transparent;color:inherit;font:inherit}
.est-row input{flex:1}.est-row select{width:auto}
.est select option{background:#0c1524;color:#e8eef7}
.est-unit{color:var(--muted);padding:0 .3rem}
.est-adv{margin:.4rem 0;color:var(--muted);font-size:.9rem}
.est-adv summary{cursor:pointer}
.est-out{margin:.9rem 0 .4rem}
.est-out table{width:100%;border-collapse:collapse;font-size:.9rem;margin-top:.5rem}
.est-out th,.est-out td,.gc-chart th,.gc-chart td,.gc-climbout th,.gc-climbout td{padding:.35rem .45rem;border-bottom:1px solid var(--line);text-align:left}
.gc-chart,.gc-climbout{overflow-x:auto;max-width:100%}
.est{min-width:0;overflow-wrap:anywhere}
.gc-chart table,.gc-climbout table{width:100%;border-collapse:collapse;font-size:.85rem}
.est-actions{font-size:.9rem}
.est-use{padding:.5rem .9rem;border:0;border-radius:10px;background:linear-gradient(135deg,var(--accent),#e08a00);color:#1a1200;font:inherit;font-weight:700;cursor:pointer}
.linkish{background:none;border:0;padding:0;color:var(--accent-2);text-decoration:underline;font:inherit;cursor:pointer}
.low-gear{font-weight:700;color:var(--accent-2)}
.cad-ok{color:#7bd88f}.cad-mid{color:#ffd166}.cad-heavy{color:#f5a623}.cad-grind{color:#ff6b6b}
.p2w-climbs{padding-left:1.1rem}
.howcalc{margin:2rem 0;padding:1rem 1.2rem;border:1px solid var(--line);border-radius:14px;background:var(--accent-dim)}
.howcalc h2{margin-top:0}
.tool-links{margin-top:1.5rem}