:root{--bg:#f3f5f9;--surface:#fff;--surface-2:#eef1f6;--border:#dde3ec;--text:#0e1726;--muted:#64718a;--accent:#0a84ff;--accent-soft:#0a84ff1f;--readout:#0e1726;--error:#d92d20;--air:#6b7fa3;--wind:#f59e0b;--ground:#0a84ff;--runway:#3b4456;--shadow:0 1px 2px #1018280f, 0 1px 3px #10182814;--radius:14px;--tabbar-h:58px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}:root[data-theme=dark]{--bg:#070b14;--surface:#0f1625;--surface-2:#162034;--border:#1f2b42;--text:#e8eef8;--muted:#8291ad;--accent:#38bdf8;--accent-soft:#38bdf824;--readout:#4ade80;--error:#f87171;--air:#8a9cc0;--wind:#fbbf24;--ground:#38bdf8;--runway:#2a3448;--shadow:none;--lightningcss-light: 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input{background:var(--surface-2);min-width:0;color:var(--text);border:1px solid #0000;border-radius:10px;outline:none;padding:8px 10px;font-family:inherit;font-size:16px}.timer-custom input:focus{border-color:var(--accent)}#cd-min{text-align:right;flex:none;width:70px}#cd-label{flex:1}.timer-card header{align-items:center}.timer-stop{border:1px solid var(--border);color:var(--muted);background:0 0;border-radius:8px;padding:5px 10px;font-size:13px;font-weight:600}.timer-main{color:var(--readout);letter-spacing:-.02em;align-items:center;gap:12px;margin:4px 0 0;font:700 44px/1.1 SF Mono,ui-monospace,Menlo,monospace;display:flex}.timer-main .overdue{color:var(--error);font-size:34px}.tank-badge{background:var(--accent);color:#fff;border-radius:12px;place-items:center;width:46px;height:46px;font-size:26px;display:inline-grid}:root[data-theme=dark] .tank-badge,:root[data-theme=night] .tank-badge{color:#000}.timer-card 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h2{color:var(--text);letter-spacing:-.01em;text-transform:none;margin:0 0 10px;font-size:22px;font-weight:700}.pay-features{margin:0 0 16px;padding-left:20px;font-size:15px;line-height:1.5}.pay-primary,.pay-secondary{border:0;border-radius:12px;flex-direction:column;align-items:center;width:100%;margin-bottom:10px;padding:14px;font-size:17px;font-weight:700;display:flex}.pay-primary{background:var(--accent);color:#fff}:root[data-theme=dark] .pay-primary,:root[data-theme=night] .pay-primary{color:#000}.pay-secondary{background:var(--accent-soft);color:var(--accent)}.pay-secondary small{font-size:12px;font-weight:600}.pay-link{color:var(--accent);background:0 0;border:0;margin:10px auto 0;padding:8px;font-size:15px;font-weight:600;display:block}.pay-message{color:var(--accent);text-align:center;margin:10px 0 0;font-size:14px;font-weight:600}.paywall button:disabled{opacity:.5}.trial-banner{background:var(--accent-soft);width:100%;color:var(--accent);border:0;border-radius:10px;margin-top:12px;padding:8px 12px;font-size:14px;font-weight:600;display:block}.chip.locked:before{content:"";vertical-align:-1px;background:currentColor;width:11px;height:11px;margin-right:5px;display:inline-block;-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M7 10V7a5 5 0 0 1 10 0v3h1a2 2 0 0 1 2 2v8a2 2 0 0 1-2 2H6a2 2 0 0 1-2-2v-8a2 2 0 0 1 2-2zm2 0h6V7a3 3 0 0 0-6 0z'/%3E%3C/svg%3E") 50%/contain no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M7 10V7a5 5 0 0 1 10 0v3h1a2 2 0 0 1 2 2v8a2 2 0 0 1-2 2H6a2 2 0 0 1-2-2v-8a2 2 0 0 1 2-2zm2 0h6V7a3 3 0 0 0-6 0z'/%3E%3C/svg%3E") 50%/contain no-repeat}.timers-locked>section{display:none}.safety-notice{border:1px solid var(--border);background:var(--surface);border-radius:10px;align-items:center;gap:12px;margin:12px 0 0;padding:10px 12px;display:flex}.safety-notice p{color:var(--muted);margin:0;font-size:12.5px;line-height:1.4}.safety-notice button{background:var(--accent-soft);color:var(--accent);border:0;border-radius:8px;flex:none;padding:6px 12px;font-size:14px;font-weight:700}.about-text{margin:0 0 10px;font-size:14.5px;line-height:1.5}.about-text:last-child{margin-bottom:0}.ref-list a{color:var(--accent)}a.pay-primary{text-decoration:none}a.pay-link{text-align:center;text-decoration:none}.input-box{display:inline-flex;position:relative}.input-box .clear{background:var(--muted);width:22px;height:22px;color:var(--surface);opacity:.7;border:0;border-radius:50%;place-items:center;margin-top:-11px;padding:0 0 2px;font-size:17px;font-weight:700;line-height:1;display:none;position:absolute;top:50%;left:6px}.input-box.has-value:focus-within .clear{display:grid}.input-box.has-value:focus-within input{padding-left:32px}.set-row{justify-content:space-between;align-items:center;gap:12px;min-height:48px;padding:6px 0;display:flex}.set-row+.set-row{border-top:1px solid var(--border)}.set-label{flex-direction:column;min-width:0;font-size:16px;font-weight:500;display:flex}.set-label small{color:var(--muted);font-size:13px;font-weight:400}.settings select{max-width:60%}.switch{background:var(--surface-2);width:51px;height:31px;box-shadow:inset 0 0 0 1px var(--border);appearance:none;cursor:pointer;border-radius:16px;flex:none;margin:0;transition:background .2s;position:relative}.switch:after{content:"";background:#fff;border-radius:50%;width:27px;height:27px;transition:transform .2s;position:absolute;top:2px;left:2px;box-shadow:0 2px 4px #0000004d}.switch:checked{background:var(--accent);box-shadow:none}.switch:checked:after{transform:translate(20px)}:root[data-theme=night] .switch:after{background:var(--text)}.set-danger{border:1px solid var(--border);background:var(--surface-2);width:100%;color:var(--error);border-radius:10px;margin:4px 0 8px;padding:12px;font-size:16px;font-weight:600;display:block}.settings .paywall{box-shadow:none;background:0 0;border:0;margin:8px 0 0;padding:0}.settings .paywall h2{font-size:17px}.sb-settings{margin-top:14px}.about-text a{color:var(--accent)}.settings .ref-list+.about-text{margin-top:12px}:root{--content-w:608px;--sidebar-w:264px}.sidebar{display:none}@media (width>=720px){:root{--content-w:1040px}.calc{grid-template-rows:auto auto 1fr;grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:start;gap:0 20px;padding-top:16px;display:grid}.calc>*{grid-column:2}.calc>.live-wrap,.calc>.live-wrap.unstuck{grid-area:1/1/span 3;margin:0;padding:0;position:sticky}.calc>.details{margin-top:16px}.calc.no-diagram>.live-wrap{grid-row:1;position:static}.calc.no-diagram>.details{grid-area:2/1}.calc.no-diagram>.fields{grid-row:1/span 3}.calc.no-diagram>.desc{grid-area:3/1}.calc 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