.fs-tool{margin:28px 0;padding:clamp(20px,3vw,30px);background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:22px;font-family:var(--font-body)}.fs-tool h3{margin:0 0 12px;font-size:clamp(21px,2.3vw,27px);line-height:1.3}.fs-tool p{line-height:1.7}.fs-buttons{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0}.fs-buttons button{appearance:none;border:1px solid var(--border-color);border-radius:12px;background:var(--bg-primary);color:var(--text-primary);padding:13px 16px;font:600 15px/1.4 var(--font-body);cursor:pointer;min-height:48px}.faq-content .fs-buttons button[aria-pressed=true]{background:var(--accent-green);color:#081008!important;border-color:var(--accent-green)}body.light-theme .faq-content .fs-buttons button[aria-pressed=true]{color:#fff!important}.fs-buttons button:disabled{cursor:default;opacity:.6}.fs-buttons button:focus-visible{outline:3px solid var(--accent-green);outline-offset:4px}.fs-diagram{display:block;width:100%;height:auto;max-height:400px;margin:16px 0;background:var(--bg-primary);border-radius:15px}.fs-diagram .fs-housing{fill:#777d7c;stroke:var(--text-secondary);stroke-width:2}.fs-diagram [data-fs-zone]{fill:#9aa0a0;stroke:var(--text-secondary);stroke-width:2}.fs-diagram [data-fs-zone=lip]{fill:#aa6d43}.fs-diagram [data-fs-zone=force]{fill:#899093}.fs-diagram [data-active=true]{fill:var(--accent-green);stroke:var(--text-primary);stroke-width:3}.fs-diagram text{fill:var(--text-primary);font:500 20px var(--font-body)}.fs-result{padding:20px;border-inline-start:4px solid var(--accent-green);border-radius:12px;background:var(--bg-primary)}.fs-result h4{margin:0 0 12px;font:700 19px/1.4 var(--font-body)}.fs-result p{margin:0}.fs-note{font-size:14px;color:var(--text-secondary)}@media(max-width:600px){.fs-buttons{display:grid;grid-template-columns:1fr 1fr}.fs-buttons button{text-align:left;padding:12px 10px}.fs-diagram text{font-size:36px}.fs-result{padding:16px}}
.fs-diagram text{fill:currentColor!important}.fs-diagram [data-active=true]{stroke:currentColor}