:root{color-scheme:light;--ink:#152330;--muted:#75818c;--line:#e6ebef;--paper:#fff;--bg:#f4f6f8;--green:#16a37a;--green-dark:#0b7f60;--green-pale:#eaf7f2;--red:#bc4e4e;--shadow:0 12px 40px rgba(28,47,61,.055)}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:'DM Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;-webkit-font-smoothing:antialiased}
.page-shell{width:min(100% - 36px,760px);margin:0 auto;padding:20px 0 36px}
.topbar{height:42px;display:flex;align-items:center;justify-content:space-between;margin-bottom:48px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:#21313c;font-family:Manrope,sans-serif;font-size:13px;font-weight:800;letter-spacing:.09em}
.brand-mark{width:27px;height:27px;border-radius:9px;background:var(--green);color:white;display:grid;place-items:center;font-size:14px;letter-spacing:0;box-shadow:0 4px 10px #16a37a33}
.brand-light{color:#91a0aa;font-weight:600}
.status{display:flex;align-items:center;gap:7px;color:#87939c;font-size:9px;font-weight:700;letter-spacing:.1em}
.status-dot{width:6px;height:6px;border-radius:100%;background:var(--green)}
.intro{margin:0 0 28px 2px;max-width:570px}
.eyebrow{margin:0 0 9px;color:var(--green-dark);font-size:9px;font-weight:700;letter-spacing:.15em}
h1,h2,p{margin-top:0}
h1{margin-bottom:12px;font-family:Manrope,sans-serif;font-size:clamp(32px,7vw,48px);line-height:1.13;font-weight:700;letter-spacing:-.045em}
h1 span{color:#8a969f}
.intro-copy{max-width:480px;margin:0;color:#71808b;font-size:14px;line-height:1.65}
.card{background:var(--paper);border:1px solid #e9edf0;border-radius:17px;box-shadow:var(--shadow)}
.calculator{padding:26px 28px 25px}
.section-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px}
.section-heading .eyebrow{margin-bottom:5px}
h2{margin:0;font-family:Manrope,sans-serif;font-size:20px;line-height:1.3;letter-spacing:-.025em}
.fixed-chip{display:inline-flex;align-items:center;gap:7px;padding:7px 9px;border:1px solid #e4f0eb;border-radius:9px;background:#f7fbf9;color:#536c62;font-size:11px;font-weight:600;white-space:nowrap}
.fixed-chip select{max-width:78px;padding:3px 5px;border:0;border-radius:5px;outline:0;background:transparent;color:#536c62;font:700 12px 'DM Sans',sans-serif;cursor:pointer}
.fixed-chip select:focus-visible{box-shadow:0 0 0 2px #16a37a55}
.fixed-chip select option{color:#24343f;background:#fff}
.lock{color:var(--green);font-size:9px}
.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px 16px}
.field{display:block;min-width:0}
.field-label{display:flex;align-items:center;gap:8px;margin-bottom:8px;font-size:12px;font-weight:700;color:#33434e}
.hint,.required{font-size:9px;font-weight:600;letter-spacing:.02em}
.hint{color:#9aa5ad}.required{color:#a6afb6}
.input-wrap{height:47px;display:flex;align-items:center;border:1px solid #dfe6e9;border-radius:9px;background:#fff;transition:border-color .15s,box-shadow .15s}
.input-wrap:focus-within{border-color:#58b99a;box-shadow:0 0 0 3px #16a37a15}
.field-fixed .input-wrap{background:#f7f9fa;border-color:#edf0f2}
.input-wrap input{height:100%;width:100%;min-width:0;padding:0 13px;border:0;outline:0;background:transparent;color:#24343f;font:600 15px 'DM Sans',sans-serif;font-variant-numeric:tabular-nums}
.input-wrap input::placeholder{color:#b4bec5;font-weight:400}
.input-wrap input::-webkit-inner-spin-button,.input-wrap input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}
.input-wrap input[type=number]{-moz-appearance:textfield}
.input-wrap .suffix{padding:0 13px 0 2px;color:#84929b;font-size:12px;font-weight:600}
.field-note{display:block;min-height:16px;margin-top:6px;color:#9aa5ad;font-size:10px;line-height:1.4}
.field-error{display:block;min-height:0;margin-top:0;color:var(--red);font-size:10px;line-height:1.4}
.field-error:not(:empty){margin-top:4px}
.field.invalid .input-wrap{border-color:#d88989;background:#fffafa}
.margin-note{display:flex;align-items:flex-start;gap:10px;margin:5px 0 18px;padding:12px 13px;border-radius:9px;background:#f6f8f9}
.margin-note p{margin:0;color:#727f89;font-size:11px;line-height:1.55}
.margin-note strong{color:#42535e}
.info-icon{flex:0 0 16px;height:16px;border-radius:50%;display:grid;place-items:center;background:#dcebe5;color:#167b5e;font-family:Georgia,serif;font-size:11px;font-weight:bold}
.result{margin-top:20px;padding:18px 19px 14px;border:2px solid #cfe9de;border-radius:12px;background:linear-gradient(135deg,#f0faf6,#f8fcfa)}
.result-empty{border-color:#e3e9ec;background:linear-gradient(135deg,#f7f9fa,#fbfcfc)}
.result-empty .result-label{color:#84939b}
.result-empty .result-tag{background:#edf0f2;color:#829099}
.result-empty .result-value{color:#a5b0b6}
.result-empty .result-caption{color:#9aa5ad}
.result-top{display:flex;align-items:center;justify-content:space-between}
.result-label{color:#49856e;font-size:9px;font-weight:700;letter-spacing:.14em}
.result-tag{padding:5px 8px;border-radius:6px;background:#e0f3eb;color:#328164;font-size:8px;font-weight:700;letter-spacing:.08em}
.result-value{margin:7px 0 10px;color:#13795b;font-family:Manrope,sans-serif;font-size:clamp(34px,8vw,44px);font-weight:800;letter-spacing:-.045em;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.result-meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(95px,1fr));gap:12px 16px;color:#85938d;font-size:10px}
.result-stat{display:flex;flex-direction:column;gap:5px}.result-meta .result-stat>span{color:#85938d;font-size:10px}.result-meta strong{color:#4a6659;font-size:11px;font-variant-numeric:tabular-nums}
.result-caption{margin:12px 0 0;color:#84928c;font-size:10px;line-height:1.5}
@media (max-width:560px){.page-shell{width:min(100% - 28px,500px);padding-top:15px}.topbar{margin-bottom:36px}.status{font-size:8px}.intro{margin-bottom:22px}.intro-copy{font-size:13px}.calculator{padding:21px 17px 18px;border-radius:14px}.section-heading{margin-bottom:20px;align-items:flex-start}.fixed-chip{font-size:9px;padding:7px 8px;margin-top:4px}.fixed-chip select{max-width:70px;font-size:11px}.field-grid{grid-template-columns:1fr;gap:13px}.field-label{margin-bottom:6px}.input-wrap{height:46px}.field-note{margin-top:4px}.margin-note{margin:8px 0 15px;padding:10px}.result{padding:16px 15px 13px}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}}