.tool-page{background:var(--white)}.tool-header{background:var(--light);border-bottom:1px solid var(--rule);padding:64px 0 56px}.tool-header-inner{max-width:720px;margin:0 auto;padding:0 40px}.tool-hed{font-size:clamp(32px,4vw,52px);font-weight:600;line-height:1.08;letter-spacing:-.03em;margin-bottom:16px;color:var(--black)}.tool-sub{font-size:17px;color:var(--gray);line-height:1.65;max-width:560px;margin-bottom:20px}.tool-disclaimer{font-size:12px;color:var(--gray);line-height:1.6;border-left:3px solid var(--rule);padding-left:12px;max-width:560px}.tool-body{max-width:720px;margin:0 auto;padding:56px 40px 80px}.tool-form{display:flex;flex-direction:column;gap:40px}.tool-field{display:flex;flex-direction:column;gap:8px}.tool-label{font-size:15px;font-weight:600;letter-spacing:-.01em;color:var(--black)}.tool-hint{font-size:13px;color:var(--gray);line-height:1.5;margin:0}.slider-row{display:flex;align-items:center;gap:16px;margin-top:4px}.tool-slider{flex:1;-webkit-appearance:none;appearance:none;height:4px;background:var(--rule);border-radius:2px;outline:none}.tool-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:20px;height:20px;border-radius:50%;background:var(--black);cursor:pointer;border:3px solid var(--white);box-shadow:0 0 0 1.5px var(--black)}.tool-slider::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:var(--black);cursor:pointer;border:3px solid var(--white);box-shadow:0 0 0 1.5px var(--black)}.slider-value{font-size:15px;font-weight:600;color:var(--black);min-width:60px;text-align:right}.option-group{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px}.option-btn{font-family:var(--font);font-size:13px;font-weight:500;color:var(--black);background:var(--white);border:1.5px solid var(--rule);border-radius:8px;padding:10px 16px;cursor:pointer;transition:border-color .15s,background .15s;line-height:1.3}.option-btn:hover{border-color:#bbb}.option-btn--selected{border-color:var(--black);background:var(--black);color:var(--white)}.tool-submit{font-family:var(--font);font-size:15px;font-weight:600;background:var(--black);color:var(--white);border:none;border-radius:10px;padding:18px 40px;cursor:pointer;align-self:flex-start;transition:opacity .15s}.tool-submit:hover{opacity:.82}.tool-result{display:flex;flex-direction:column;gap:36px}.hrv-summary{display:flex;align-items:center;gap:28px;background:var(--light);border:1px solid var(--rule);border-radius:16px;padding:32px}.hrv-score-block{display:flex;flex-direction:column;align-items:center;background:var(--black);color:var(--white);border-radius:12px;padding:20px 28px;flex-shrink:0;min-width:108px;text-align:center;transition:background .3s}.hrv-value-display{font-size:36px;font-weight:700;letter-spacing:-.04em;line-height:1}.hrv-unit{font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:#ffffffa6;margin-top:4px}.hrv-band{font-size:20px;font-weight:700;letter-spacing:-.02em;color:var(--black);margin-bottom:8px}.hrv-tagline{font-size:14px;color:var(--gray);line-height:1.6}.hrv-range-section{border:1px solid var(--rule);border-radius:12px;padding:24px}.range-label{font-size:13px;font-weight:600;color:var(--black);margin-bottom:20px}.range-bar-wrap{position:relative}.range-bar-track{display:flex;height:12px;border-radius:6px;overflow:hidden;margin-bottom:24px}.range-bar-zone{flex:1}.range-zone-low{background:#fecaca}.range-zone-avg{background:#bbf7d0}.range-zone-high{background:#86efac}.range-marker{position:absolute;top:0;transform:translate(-50%);display:flex;flex-direction:column;align-items:center}.range-marker-line{width:2px;height:12px;background:var(--black);border-radius:1px}.range-marker-label{font-size:11px;font-weight:700;color:var(--black);margin-top:4px;white-space:nowrap}.range-labels-row{display:flex;justify-content:space-between;font-size:11px;font-weight:500;color:var(--gray);text-transform:uppercase;letter-spacing:.06em;margin-top:8px}.hrv-signals{display:flex;flex-direction:column;gap:12px}.signal-row{display:flex;align-items:flex-start;gap:14px;border:1px solid var(--rule);border-radius:10px;padding:16px}.signal-icon{width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:16px}.signal-content{display:flex;flex-direction:column;gap:4px}.signal-label{font-size:13px;font-weight:600;color:var(--black)}.signal-text{font-size:13px;color:var(--gray);line-height:1.6}.result-cta{background:var(--black);color:var(--white);border-radius:16px;padding:36px 40px}.result-cta-hed{font-size:22px;font-weight:700;letter-spacing:-.02em;margin-bottom:12px}.result-cta-sub{font-size:14px;line-height:1.7;color:#ffffffb3;max-width:480px;margin-bottom:28px}.result-cta-btn{display:inline-block;font-family:var(--font);font-size:15px;font-weight:600;background:#ff385c;color:var(--white);padding:14px 28px;border-radius:10px;text-decoration:none;transition:opacity .15s}.result-cta-btn:hover{opacity:.88}.tool-reset{font-family:var(--font);font-size:13px;font-weight:500;color:var(--gray);background:none;border:none;cursor:pointer;text-decoration:underline;align-self:flex-start;padding:0}.tool-reset:hover{color:var(--black)}.tool-faq{margin-top:64px;border-top:1px solid var(--rule);padding-top:48px}.tool-faq-hed{font-size:20px;font-weight:600;letter-spacing:-.02em;margin-bottom:32px;color:var(--black)}.tool-faq-item{margin-bottom:28px}.tool-faq-item h3{font-size:15px;font-weight:600;color:var(--black);margin-bottom:8px}.tool-faq-item p{font-size:14px;color:var(--gray);line-height:1.7}@media(max-width:860px){.tool-header-inner{padding:0 20px}.tool-header{padding:48px 0 40px}.tool-body{padding:40px 20px 60px}.hrv-summary{flex-direction:column;align-items:flex-start;gap:20px;padding:24px 20px}.result-cta{padding:28px 20px}.tool-submit{width:100%;text-align:center}}