.br-tool{--br-ink:#18393a;--br-muted:#536a68;--br-teal:#187d76;--br-coral:#df755e;--br-cream:#fffaf2;--br-line:#d9e4de;color:var(--br-ink);font:inherit;max-width:1100px;margin:auto;line-height:1.5}
.br-tool *{box-sizing:border-box}.br-tool button,.br-tool input{font:inherit}.br-tool h2,.br-tool h3,.br-tool p{margin-top:0}.br-tool [hidden]{display:none!important}
.br-intro{padding:.9rem 0 .55rem}.br-panel-head>span{font-size:.82rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:#a8503e}.br-intro h2{font-size:1.25rem;line-height:1.2;letter-spacing:-.02em;margin:0 0 .2rem}.br-intro p{max-width:64ch;color:var(--br-muted);font-size:.92rem;margin:0}
.br-result{background:linear-gradient(140deg,#e7f2ea 0%,#fbf7e9 72%,#fff9ef 100%);border:1px solid #bdd5ca;border-radius:26px;padding:clamp(1rem,3vw,2rem);box-shadow:0 12px 30px #18494411}.br-result-top{display:flex;justify-content:space-between;gap:.75rem;align-items:flex-start;flex-wrap:wrap;font-size:.87rem;font-weight:800;color:#2d645c}.br-verdict{background:#d2ebda;color:#246143;border-radius:100px;padding:.35rem .7rem}.br-verdict.br-short{background:#f7decf;color:#8d3d2e}
.br-answer{display:grid;grid-template-columns:1.55fr 1fr;gap:1rem;padding:1.25rem 0 .8rem}.br-answer>div{display:flex;flex-direction:column;justify-content:center;min-width:0}.br-answer span,.br-facts span{font-size:.85rem;color:var(--br-muted);font-weight:700}.br-answer strong{font-size:clamp(2.4rem,6vw,4.8rem);letter-spacing:-.07em;line-height:1.02;font-variant-numeric:tabular-nums}.br-answer small{color:var(--br-muted);margin-top:.35rem}.br-answer .br-energy{border-left:1px solid #bcd6ca;padding-left:1.35rem}.br-answer .br-energy strong{font-size:clamp(1.6rem,3.5vw,2.8rem);letter-spacing:-.04em}
.br-runway{background:#ffffffb8;border:1px solid #cfdfd3;border-radius:18px;padding:1rem 1.2rem}.br-runway-label,.br-runway-foot{display:flex;justify-content:space-between;gap:.8rem;align-items:center}.br-runway-label{font-size:.85rem}.br-runway-label span{color:#a74c3d;font-weight:800}.br-runway-track{height:24px;border-radius:100px;background:repeating-linear-gradient(90deg,#edf3ed,#edf3ed calc(12.5% - 1px),#dbe8de calc(12.5% - 1px),#dbe8de 12.5%);position:relative;margin:.8rem 0}.br-runway-track>div{height:100%;border-radius:100px;background:linear-gradient(90deg,#75b8a2,#168177);transition:width .35s ease}.br-runway-track>span{position:absolute;top:-7px;bottom:-7px;width:3px;background:var(--br-coral);border-radius:5px;transition:left .35s ease}.br-runway-track>span:before{content:"";position:absolute;width:9px;height:9px;border-radius:50%;background:var(--br-coral);left:-3px;top:-3px}.br-runway-foot{font-size:.78rem;color:var(--br-muted)}
.br-facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.65rem;margin:1rem 0}.br-facts>div{background:#ffffffad;border:1px solid #dce8dc;border-radius:14px;padding:.7rem .85rem;display:flex;flex-direction:column;gap:.18rem}.br-facts strong{font-size:1.2rem;font-variant-numeric:tabular-nums}.br-facts small{font-size:.76rem;color:var(--br-muted)}.br-message{font-weight:700;max-width:76ch;margin:.55rem 0}.br-limit{font-size:.84rem;color:var(--br-muted);margin-bottom:0;max-width:82ch}.br-error{background:#fff2e9;border:1px solid #e4a18d;border-radius:14px;color:#842e20;font-weight:700;padding:1rem;margin:.8rem 0}
.br-presets{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.7rem;margin:1rem 0 1.5rem}.br-presets>span{grid-column:1/-1;text-transform:uppercase;letter-spacing:.12em;font-size:.78rem;font-weight:800;color:var(--br-muted)}.br-presets button{display:flex;flex-direction:column;gap:.15rem;text-align:left;border:1px solid var(--br-line);background:#fff;border-radius:16px;padding:.85rem 1rem;cursor:pointer;color:var(--br-ink)}.br-presets button[aria-pressed=true]{border-color:var(--br-teal);background:#eaf5ef;box-shadow:0 0 0 2px #16817722}.br-presets b{font-size:.99rem}.br-presets small{color:var(--br-muted)}.br-presets button:hover,.br-add:hover{border-color:var(--br-teal)}
.br-panel{border:1px solid var(--br-line);border-radius:22px;background:#fff;margin:1rem 0;padding:clamp(1rem,3vw,1.7rem)}.br-panel-head{margin-bottom:1rem}.br-panel-head h3{font-size:clamp(1.35rem,2.7vw,2rem);letter-spacing:-.03em;line-height:1.2;margin:.25rem 0 .45rem}.br-panel-head p{color:var(--br-muted);max-width:72ch;margin-bottom:0}.br-load-head{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem}.br-add{white-space:nowrap;border:1px solid #92bdb1;background:#eaf5ef;border-radius:100px;padding:.55rem 1rem;cursor:pointer;color:#15645d;font-weight:800}
.br-field-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:auto auto auto;gap:.25rem .9rem;margin:.8rem 0 1.05rem}.br-field-row label{font-weight:750;line-height:1.25}.br-field-row input,.br-single input{border:1px solid #a9c3b8;background:#fcfdfa;color:var(--br-ink);border-radius:10px;width:100%;min-width:0;padding:.65rem .75rem;font-variant-numeric:tabular-nums}.br-field-row input:focus,.br-single input:focus,.br-presets button:focus-visible,.br-add:focus-visible,.br-switch input:focus-visible{outline:3px solid #d38b62;outline-offset:2px}.br-field-row small,.br-single small{font-size:.79rem;color:var(--br-muted);line-height:1.3}.br-single{display:flex;flex-direction:column;gap:.22rem;max-width:32rem;font-weight:750}.br-single small{font-weight:400}.br-hint{font-size:.84rem;color:var(--br-muted);margin:.65rem 0 0}
.br-convert{margin:-.25rem 0 1rem;border:1px dashed #c8dcd2;border-radius:13px;padding:.65rem .85rem}.br-convert summary{cursor:pointer;font-weight:750;color:#146a63}.br-convert p{font-size:.84rem;color:var(--br-muted);margin:.6rem 0}.br-convert .br-field-row{margin:.75rem 0}.br-convert .br-helper-error{color:#912f22;font-weight:700}
.br-loads{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.85rem}.br-load{min-width:0;border:1px solid #d2e1d7;border-radius:17px;background:var(--br-cream);padding:1rem}.br-load.br-off{background:#f5f7f4;opacity:.8}.br-load-top{display:flex;align-items:center;justify-content:space-between;gap:.5rem;flex-wrap:wrap}.br-switch{display:inline-flex;align-items:center;gap:.45rem;font-weight:750;font-size:.86rem}.br-switch input{width:1.1rem;height:1.1rem;accent-color:var(--br-teal)}.br-remove{border:0;background:transparent;color:#9b4b3d;font-weight:700;cursor:pointer}.br-load .br-field-row{margin:.85rem 0}.br-load-effect{margin:.8rem 0 0;font-size:.84rem;color:#24776d;font-weight:700;border-top:1px solid #deeadf;padding-top:.55rem}.br-method{padding:1.4rem .3rem 2rem;color:var(--br-muted);max-width:83ch}.br-method h3{color:var(--br-ink);font-size:1.25rem}.br-method a{color:#096e6e;text-decoration:underline}
@media(max-width:720px){.br-loads{grid-template-columns:1fr}.br-facts{grid-template-columns:1fr 1fr}.br-facts>div:last-child{grid-column:1/-1}}
@media(max-width:560px){.br-answer{grid-template-columns:1fr;gap:.7rem}.br-answer .br-energy{border-left:0;border-top:1px solid #bcd6ca;padding:.75rem 0 0}.br-facts,.br-presets{grid-template-columns:1fr}.br-facts>div:last-child{grid-column:auto}.br-load-head{flex-direction:column}.br-field-row{display:grid;grid-template-columns:minmax(0,1fr);grid-template-rows:repeat(6,auto)}.br-field-row>*:nth-child(1){grid-row:1}.br-field-row>*:nth-child(3){grid-row:2}.br-field-row>*:nth-child(5){grid-row:3}.br-field-row>*:nth-child(2){grid-row:4;margin-top:.45rem}.br-field-row>*:nth-child(4){grid-row:5}.br-field-row>*:nth-child(6){grid-row:6}.br-runway-foot{align-items:flex-start}.br-runway-foot span:last-child{text-align:right}}
@media(prefers-reduced-motion:reduce){.br-runway-track>div,.br-runway-track>span{transition:none}}