.wcalc{--bg:#edf2f5;--surface:#ffffff;--surface-2:#f5f8fa;--ink:#0f2233;--muted:#53697a;--line:#d4dee6;--tank:#1f5fd0;--tank-deep:#143f8f;--tank-empty:#d6e2f3;--water:#2aa9de;--warn:#a8510a;--warn-bg:#fdf1e6;--good:#1b7148;--good-bg:#e8f4ee;--odo-bg:#161b20;--odo-black:#f3f5f7;--odo-red:#ff6b5a;--focus:#1f5fd0;--f-display:var(--font-family, system-ui, sans-serif);--f-body:var(--font-family, system-ui, sans-serif);--f-mono:ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;color:var(--ink);font-family:var(--f-body);font-size:15px;line-height:1.55;background:var(--bg);border-radius:16px;padding:16px;margin:0 0 2rem}[data-theme=dark] .wcalc{--bg:#0b151e;--surface:#122130;--surface-2:#0f1c29;--ink:#e3edf4;--muted:#91a8ba;--line:#243a4d;--tank:#4a8bf2;--tank-deep:#2e6ad8;--tank-empty:#1f3550;--water:#5cc6ef;--warn:#f0a35e;--warn-bg:#2d1f12;--good:#5fcf95;--good-bg:#12291e;--odo-bg:#05080b;--odo-black:#f3f5f7;--odo-red:#ff7b6b;--focus:#7fb0ff}[data-theme=dark] .wcalc h2,[data-theme=dark] .wcalc h3{color:var(--ink)}.wcalc *{box-sizing:border-box}.wcalc [hidden]{display:none!important}.wcalc p{margin:0 0 .6em}.wcalc table{margin:0}.wcalc th{text-transform:none;letter-spacing:0;background:none}.wcalc a{color:var(--tank)}.wcalc .sponsor a{font-weight:700}.wcalc .btns{display:flex;flex-wrap:wrap;gap:8px}.wcalc .btn-ghost{background:transparent;color:var(--tank);border:2px solid var(--tank)}.wcalc .btn-ghost:hover{background:var(--surface-2);color:var(--tank-deep)}.wcalc .btn[disabled]{opacity:.7;cursor:progress}.wcalc .wc-note{font-size:13px;color:var(--muted);margin:16px 0 0;max-width:80ch}@media(max-width:560px){.wcalc{padding:10px;margin-left:-6px;margin-right:-6px}}.wcalc .grid{display:grid;grid-template-columns:minmax(0,380px) minmax(0,1fr);gap:20px;align-items:start}@media(max-width:860px){.wcalc .grid{grid-template-columns:minmax(0,1fr)}}.wcalc .panel{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px;min-width:0}.wcalc .inputs{display:grid;gap:18px;position:sticky;top:calc(env(safe-area-inset-top,0px) + 12px)}@media(max-width:860px){.wcalc .inputs{position:static}}.wcalc .field{display:grid;gap:6px}.wcalc label,.wcalc .label{font-weight:600;font-size:14px}.wcalc .hint{font-size:13px;color:var(--muted);margin:0}.wcalc select,.wcalc input[type=number]{width:100%;font:inherit;font-size:16px;color:var(--ink);background:var(--surface-2);border:1px solid var(--line);border-radius:10px;padding:10px 12px;min-height:44px}.wcalc select:focus-visible,.wcalc input:focus-visible,.wcalc button:focus-visible{outline:3px solid var(--focus);outline-offset:2px}.wcalc .money{position:relative}.wcalc .money span{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--muted);font-weight:600;pointer-events:none}.wcalc .money input{padding-left:44px;font-family:var(--f-mono);font-weight:700;font-size:20px}.wcalc 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.odo-digits i{color:var(--odo-black);font-style:normal;align-self:end;padding:0 1px}.wcalc .tanks{display:flex;flex-wrap:wrap;gap:6px 4px;padding:14px;background:var(--surface-2);border-radius:12px;border:1px solid var(--line);min-height:70px}.wcalc .tanks svg{width:34px;height:40px;flex:none}.wcalc .tanks-note{font-size:13px;color:var(--muted);margin:0}.wcalc .stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}@media(max-width:620px){.wcalc .stats{grid-template-columns:repeat(2,minmax(0,1fr))}}.wcalc .stat{background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:12px;min-width:0}.wcalc .stat .k{font-size:12px;color:var(--muted);font-weight:600}.wcalc .stat .v{font-family:var(--f-display);font-weight:700;font-size:22px;font-variant-numeric:tabular-nums;line-height:1.2;overflow-wrap:anywhere}.wcalc .stat .u{font-size:12px;color:var(--muted)}.wcalc h2{font-family:var(--f-display);font-weight:700;font-size:20px;margin:0 0 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small{display:block;font-weight:400;color:var(--muted);font-size:12px}.wcalc .hrow .ctl{display:flex;flex-wrap:wrap;gap:6px;align-items:center;font-size:13px;color:var(--muted)}.wcalc .hrow .ctl input{width:64px;min-height:38px;padding:6px 8px;font-size:15px}.wcalc .hrow .ctl select{width:auto;min-height:38px;padding:6px 8px;font-size:14px;max-width:100%}.wcalc .hrow .out{text-align:right;font-family:var(--f-display);font-weight:700;font-variant-numeric:tabular-nums;font-size:16px;line-height:1.2}.wcalc .hrow .out small{display:block;font-family:var(--f-body);font-weight:400;font-size:11px;color:var(--muted)}@media(max-width:560px){.wcalc .hrow{grid-template-columns:minmax(0,1fr) 80px}.wcalc .hrow .ctl{grid-column:1 / -1;grid-row:2}}.wcalc .recon{display:grid;gap:10px;background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:14px}.wcalc .stack{display:flex;height:22px;border-radius:6px;overflow:hidden;background:var(--tank-empty)}.wcalc .stack span{display:block;height:100%;min-width:0}.wcalc .legend{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:12px;color:var(--muted)}.wcalc .legend i{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:5px;vertical-align:-1px}.wcalc footer.sources{margin-top:22px;font-size:13px;color:var(--muted);display:grid;gap:6px;max-width:80ch}.wcalc footer.sources a{color:var(--tank)}.wcalc footer.sources ul{margin:0;padding-left:18px;display:grid;gap:4px}.wcalc .draft{display:inline-block;background:var(--warn-bg);color:var(--warn);font-weight:700;font-size:12px;border-radius:6px;padding:2px 8px}.wcalc details summary{cursor:pointer;font-weight:600;font-size:14px}.wcalc details[open] summary{margin-bottom:10px}@media(prefers-reduced-motion:no-preference){.wcalc .tanks svg{animation:pop .35s ease-out both}@keyframes pop{0%{transform:translateY(4px);opacity:.4}to{transform:none;opacity:1}}}