:root{color:#1c2633;font-synthesis:none;text-rendering:optimizelegibility;background:#eef3f7;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button,input,select{font:inherit}.app-shell{min-height:100vh;padding:36px}.intro-band{max-width:1180px;margin:0 auto 24px}.eyebrow,.panel-kicker{color:#3b6f7f;letter-spacing:0;text-transform:uppercase;margin:0 0 8px;font-size:.78rem;font-weight:800}h1,h2{letter-spacing:0;margin:0}h1{color:#101923;font-size:clamp(2.35rem,6vw,4.75rem);line-height:.96}h2{color:#101923;font-size:1.35rem}.intro-copy{color:#4d5b66;max-width:680px;margin:14px 0 0;font-size:1.08rem;line-height:1.55}.calculator-grid{grid-template-columns:minmax(0,1.1fr) minmax(360px,.9fr);align-items:start;gap:24px;max-width:1180px;margin:0 auto;display:grid}.input-panel,.results-panel{background:#fffffff0;border:1px solid #d7e0e6;border-radius:8px;box-shadow:0 18px 40px #2937471a}.input-panel{padding:24px}.panel-heading{justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px;display:flex}.reset-button{color:#23313d;cursor:pointer;background:#f8fbfc;border:1px solid #bdcbd5;border-radius:6px;align-items:center;min-height:42px;padding:0 16px;font-weight:750;transition:background .16s,border-color .16s,transform .16s;display:inline-flex}.reset-button:hover{background:#e9f3f5;border-color:#86aab5;transform:translateY(-1px)}.input-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.input-card{background:#fbfcfd;border:1px solid #dce5ea;border-radius:8px;gap:10px;min-width:0;padding:16px;display:grid}.input-card:last-child{grid-column:1/-1}.input-label-row{color:#22303d;justify-content:space-between;align-items:center;gap:12px;font-size:.96rem;font-weight:750;line-height:1.3;display:flex}.unit-chip{color:#2f6772;background:#e4f1f2;border:1px solid #c9dfe2;border-radius:999px;flex:none;padding:6px 8px;font-size:.76rem;font-weight:850;line-height:1}input,select{appearance:none;color:#12202d;background:#fff;border:1px solid #b8c8d2;border-radius:6px;outline:none;width:100%;min-height:46px;padding:10px 12px}input:focus,select:focus{border-color:#287f8f;box-shadow:0 0 0 4px #287f8f24}input:disabled{color:#7a8792;cursor:not-allowed;background:#eef2f5;border-color:#d1dbe2}select{background-image:linear-gradient(45deg,#0000 50%,#43515d 50%),linear-gradient(135deg,#43515d 50%,#0000 50%);background-position:calc(100% - 18px) 20px,calc(100% - 12px) 20px;background-repeat:no-repeat;background-size:6px 6px}.helper-text{color:#64727e;font-size:.88rem;line-height:1.45}.input-card-disabled{background:#f0f3f5;border-color:#d0dae1}.input-card-disabled .input-label-row,.input-card-disabled .helper-text{color:#7a8792}.input-card-disabled .unit-chip{color:#6d7c86;background:#e1e7eb;border-color:#cbd5dc}.results-panel{position:sticky;top:24px;overflow:hidden}.recommended-block{color:#fff;background:#173744;padding:28px}.recommended-block .panel-kicker{color:#9fd8d7}.recommended-value{letter-spacing:0;flex-wrap:wrap;align-items:baseline;gap:10px;margin-top:6px;font-size:clamp(3rem,8vw,5.25rem);font-weight:850;line-height:.95;display:flex}.recommended-value span{color:#bee1e0;font-size:1.1rem;font-weight:800}.interpretation{color:#d8e8e8;margin:18px 0 0;font-size:1rem;line-height:1.5}.interpretation strong{color:#fff;font-weight:850}.results-list{gap:0;padding:8px 24px 24px;display:grid}.result-row{border-bottom:1px solid #e3eaee;justify-content:space-between;align-items:center;gap:18px;min-height:78px;display:flex}.result-row:last-child{border-bottom:0}.result-row span{color:#465563;line-height:1.35}.result-row strong{color:#101923;letter-spacing:0;flex:none;font-size:1.45rem}.result-row small{color:#687784;margin-left:6px;font-size:.78rem;font-weight:800}.modal-backdrop{z-index:20;background:#1019237a;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.warning-modal{color:#1c2633;background:#fff;border:1px solid #d7e0e6;border-radius:8px;width:100%;max-width:460px;padding:28px;box-shadow:0 24px 80px #10192347}.warning-modal h2{font-size:1.45rem;line-height:1.2}.warning-modal p:not(.panel-kicker){color:#4d5b66;margin:14px 0 22px;line-height:1.55}.warning-modal strong{color:#101923}@media (width<=900px){.app-shell{padding:24px}.calculator-grid{grid-template-columns:1fr}.results-panel{position:static}}@media (width<=640px){.app-shell{padding:18px}.input-panel,.results-panel{border-radius:8px}.panel-heading{flex-direction:column;align-items:stretch}.reset-button{justify-content:center;width:100%}.input-list{grid-template-columns:1fr}.input-card:last-child{grid-column:auto}.recommended-block{padding:24px}.result-row{flex-direction:column;justify-content:center;align-items:flex-start;gap:8px;min-height:88px;padding:14px 0}}