*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#f4f5f7;color:#171717;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.5}.calc{width:min(960px,calc(100% - 32px));margin:32px auto;padding:clamp(20px,4vw,44px);background:#fff;border:1px solid #e3e5e8;border-radius:24px;box-shadow:0 16px 50px rgba(22,24,29,.08)}.back-link{display:inline-flex;margin-bottom:24px;color:#555;text-decoration:none;font-size:14px;font-weight:600}.back-link:hover,.calc-footer a:hover{color:#9b7900}.eyebrow{display:inline-block;margin-bottom:12px;padding:5px 12px;border-radius:99px;background:#fff7c7;color:#6f5900;font-size:11px;font-weight:800;letter-spacing:.09em;text-transform:uppercase}.calc-header h1{max-width:700px;margin:0;font-size:clamp(30px,5vw,48px);line-height:1.08;letter-spacing:-.04em}.calc-header p{max-width:680px;margin:16px 0 32px;color:#5d6168;font-size:16px}.device-fieldset,.autonomy-fieldset{border:0;padding:0;margin:0 0 30px;min-width:0}.device-fieldset legend,.autonomy-fieldset legend{margin-bottom:8px;font-size:20px;font-weight:800;letter-spacing:-.02em}.helper{margin:0 0 16px;color:#777e87;font-size:13px}.items{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.device{display:flex;align-items:flex-start;gap:12px;min-width:0;padding:16px;border:1px solid #e0e2e5;border-radius:14px;cursor:pointer;transition:border-color .15s,background .15s,box-shadow .15s}.device:has(input:checked){border-color:#cfaa00;background:#fffbed;box-shadow:inset 0 0 0 1px #cfaa00}.device input{accent-color:#d6b000;width:18px;height:18px;flex:0 0 auto;margin:3px 0 0}.device span{display:flex;flex-direction:column;gap:3px}.device strong{font-size:14px}.device small{font-size:12px;color:#717780;line-height:1.4}.select-label{display:block;margin:0 0 8px;color:#61666d;font-size:13px}.autonomy-fieldset select{max-width:320px;width:100%;padding:13px 15px;border:1px solid #d8dbe0;border-radius:12px;background:#fff;font:inherit;color:#171717}.actions{display:flex;flex-wrap:wrap;gap:10px}.calculate-btn,.reset-btn{border:0;border-radius:12px;padding:14px 22px;font:inherit;font-weight:800;cursor:pointer;transition:transform .15s,background .15s}.calculate-btn{background:#f5c800;color:#171717}.calculate-btn:hover{background:#e3ba00;transform:translateY(-1px)}.reset-btn{background:#f0f1f3;color:#333}.reset-btn:hover{background:#e3e5e8}.result{margin-top:28px;padding:clamp(18px,3vw,28px);background:#f8f9fa;border:1px solid #e7e9ec;border-radius:18px;scroll-margin-top:20px}.result-placeholder{text-align:center;padding:12px 0}.bolt{display:inline-grid;place-items:center;width:46px;height:46px;border-radius:14px;background:#fff2a5;font-size:23px}.result h2{margin:10px 0;font-size:24px;letter-spacing:-.02em}.result p{margin:8px 0;color:#545a62}.result-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:20px 0}.metric{padding:15px;background:#fff;border:1px solid #e5e7eb;border-radius:12px}.metric span{display:block;color:#747a83;font-size:12px;margin-bottom:5px}.metric strong{display:block;font-size:20px;line-height:1.25}.recommendation{margin:18px 0 0;padding:18px;background:#fff;border-left:4px solid #f5c800;border-radius:8px}.recommendation h3{margin:0 0 10px;font-size:17px}.recommendation ul{margin:0;padding-left:19px}.recommendation li{margin:7px 0;color:#444}.selected-devices{font-size:13px!important;color:#626872!important}.result-cta{display:inline-block;margin-top:16px;padding:12px 18px;border-radius:10px;background:#171717;color:white;text-decoration:none;font-weight:700}.result-cta:hover{background:#333}.disclaimer{margin-top:22px;padding:15px 16px;background:#fff9df;border:1px solid #f0e3a6;border-radius:12px;color:#5b5332;font-size:12px;line-height:1.65}.calc-footer{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:24px;font-size:13px;color:#9a9ca1}.calc-footer a{color:#5a5e64;text-decoration:underline;text-underline-offset:3px}.calculate-btn:focus-visible,.reset-btn:focus-visible,.device:focus-within,.autonomy-fieldset select:focus-visible,.back-link:focus-visible,.calc-footer a:focus-visible,.result-cta:focus-visible{outline:3px solid #3478f6;outline-offset:3px}@media(max-width:620px){.calc{width:min(100% - 20px,960px);margin:10px auto;padding:20px 16px;border-radius:18px}.items{grid-template-columns:1fr}.device{padding:13px}.result-grid{grid-template-columns:1fr}.actions{flex-direction:column}.actions button{width:100%}.calc-footer{align-items:flex-start}.calc-header p{font-size:14px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}