:root{--accent:var(--calc-color-health);--accent-rgb:var(--calc-color-health-rgb);--accent-dim:rgba(var(--accent-rgb), .15)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{background:var(--calc-bg-page);color:var(--calc-text-primary);min-height:100vh;font-family:Inter,sans-serif;line-height:1.5}a{color:inherit;text-decoration:none}.field[hidden],.age-panel[hidden],.stat-row[hidden],.alert-stack[hidden],.zone-meter__marker[hidden]{display:none}.main-container{max-width:1400px;margin:0 auto;padding:40px 20px 3rem}.page-title{font-family:var(--calc-font-headline);color:var(--calc-text-primary);margin:.5rem 0;font-size:clamp(1.6rem,4vw,2.4rem);font-weight:800}.page-subtitle{color:var(--calc-text-faded);max-width:70ch;margin:0 0 1rem;font-size:.95rem;line-height:1.6}.disclaimer-banner{color:var(--calc-text-faded);background:#22d3ee0f;border:1px solid #22d3ee33;border-radius:8px;max-width:70ch;margin-bottom:1.25rem;padding:.6rem .9rem;font-size:.8rem;line-height:1.5;display:block}.action-bar{flex-wrap:wrap;gap:8px;margin-bottom:1.5rem;display:flex}.action-btn{background:var(--calc-bg-card);border:1px solid var(--calc-border-default);border-radius:var(--calc-radius-md);color:var(--calc-text-faded);cursor:pointer;padding:6px 14px;font-size:.82rem;transition:border-color .15s,color .15s}.action-btn:hover{border-color:var(--accent);color:var(--accent)}.action-btn--reset{color:var(--calc-rose)}.action-btn--reset:hover{border-color:var(--calc-rose);color:var(--calc-rose)}.calc-layout{grid-template-columns:1fr 1fr;align-items:start;gap:1.5rem;display:grid}@media (width<=900px){.calc-layout{grid-template-columns:1fr;gap:0}}.input-card,.result-card,.analysis-card{background:var(--calc-bg-card);border:1px solid var(--calc-border-default);border-radius:var(--calc-radius-lg);margin-bottom:1.25rem;padding:1.5rem}.card-title{font-family:var(--calc-font-headline);text-transform:uppercase;letter-spacing:.07em;color:var(--calc-text-dim);margin:0 0 1.25rem;font-size:.78rem}.input-card{flex-direction:column;gap:1.25rem;display:flex}.input-card .card-title{margin-bottom:0}.field{border:0;flex-direction:column;gap:6px;min-width:0;display:flex}.field label,.field legend{color:var(--calc-text-faded);font-size:.85rem;font-weight:600}.field legend{margin-bottom:6px}.field input,.field select{background:var(--calc-bg-input);border:1px solid var(--calc-border-default);border-radius:var(--calc-radius-md);color:var(--calc-text-primary);font-family:var(--calc-font-mono);width:100%;min-height:44px;padding:9px 12px;font-size:1rem;transition:border-color .15s,box-shadow .15s}.field input[type=datetime-local]{color-scheme:dark}.field input:focus,.field select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-dim);outline:none}.input-hint{color:var(--calc-text-dim);font-size:.78rem;display:block}.seg{flex-wrap:wrap;gap:6px;display:flex}.seg-btn,.chip{background:var(--calc-bg-input);border:1px solid var(--calc-border-default);color:var(--calc-text-faded);cursor:pointer;font:inherit;min-height:40px;font-size:.85rem;font-weight:600;transition:border-color .15s,color .15s,background-color .15s}.seg-btn{border-radius:var(--calc-radius-md);flex:1 1 0;padding:8px 10px}.chip{white-space:nowrap;border-radius:999px;padding:6px 14px}.seg-btn:hover,.chip:hover{border-color:var(--accent);color:var(--calc-text-primary)}.seg-btn.active{background:var(--accent-dim);border-color:var(--accent);color:var(--calc-text-primary)}.seg-btn:focus-visible,.chip:focus-visible,.prior-reading summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.age-panel{flex-direction:column;gap:6px;margin-top:8px;display:flex}.age-panel label{margin-top:6px}.inline-row{align-items:stretch;gap:8px;display:flex}.inline-row input{flex:auto;min-width:0}.chip-row{flex-wrap:wrap;gap:6px;margin-top:4px;display:flex}.age-computed{color:var(--calc-text-primary);font-family:var(--calc-font-mono);margin-top:6px;font-size:.85rem}.age-computed:empty{display:none}.age-computed.is-error{color:var(--calc-rose)}.prior-reading{border:1px dashed var(--calc-border-default);border-radius:var(--calc-radius-md);padding:10px 12px}.prior-reading summary{color:var(--calc-text-primary);cursor:pointer;font-size:.88rem;font-weight:600}.summary-note{color:var(--calc-text-dim);font-weight:400}.prior-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin-top:12px;display:grid}.zone-hero{text-align:center;padding:.5rem 0 1rem}.zone-badge{font-family:var(--calc-font-headline);color:var(--calc-text-primary);font-size:1.7rem;font-weight:900;line-height:1.2;transition:color .3s}.zone-sub{color:var(--calc-text-faded);margin-top:.4rem;font-size:.85rem}.zone-meter{margin:0 0 1.1rem;position:relative}.zone-meter__track{grid-template-columns:repeat(4,1fr);gap:3px;height:10px;display:grid}.zm{opacity:.85;border-radius:999px}.zm--low{background:var(--calc-tier-good)}.zm--li{background:var(--calc-tier-fair)}.zm--hi{background:var(--calc-tier-warn)}.zm--high{background:var(--calc-tier-crisis)}.zone-meter__marker{background:var(--calc-text-primary);width:4px;height:18px;box-shadow:0 0 0 2px var(--calc-bg-card);border-radius:2px;margin-left:-2px;transition:left .25s;position:absolute;top:-4px}.zone-meter__labels{color:var(--calc-text-dim);text-align:center;grid-template-columns:repeat(4,1fr);margin-top:6px;font-size:.72rem;display:grid}@media (prefers-reduced-motion:reduce){.zone-meter__marker,.zone-badge{transition:none}}.stat-list{border-top:1px solid var(--calc-border-default);margin:0 0 1rem}.stat-row{border-bottom:1px solid var(--calc-border-default);justify-content:space-between;gap:12px;padding:9px 0;display:flex}.stat-row dt{color:var(--calc-text-faded);font-size:.85rem}.stat-row dd{color:var(--calc-text-primary);font-family:var(--calc-font-mono);text-align:right;font-size:.92rem;font-weight:700}.result-interpretation{color:var(--calc-text-faded);margin-bottom:.75rem;font-size:.85rem;line-height:1.6}.alert-stack{flex-direction:column;gap:8px;margin-top:.5rem;display:flex}.alert{border-radius:var(--calc-radius-md);padding:10px 12px;font-size:.84rem;line-height:1.5}.alert-danger{color:var(--calc-text-primary);background:#fb718514;border:1px solid #fb71854d}.alert-info{color:var(--calc-text-faded);background:#22d3ee0f;border:1px solid #22d3ee2e}.next-step{background:var(--calc-bg-glass,#ffffff08);border:1px solid var(--calc-border-default);border-radius:var(--calc-radius-md);color:var(--calc-text-faded);margin-top:1rem;padding:12px 14px;font-size:.85rem;line-height:1.6}.next-step strong{color:var(--calc-text-primary)}.chart-wrap{height:280px;position:relative}.chart-note{color:var(--calc-text-faded);margin-top:.75rem;font-size:.82rem;line-height:1.6}.table-scroll{overflow-x:auto}.ref-table{border-collapse:collapse;width:100%;margin-bottom:1.25rem;font-size:.85rem}.ref-table th{border-bottom:1px solid var(--calc-border-default);color:var(--calc-text-faded);text-align:left;text-transform:uppercase;background:#ffffff0a;padding:8px 10px;font-size:.78rem;font-weight:600}.ref-table td{color:var(--calc-text-primary);vertical-align:top;border-bottom:1px solid #ffffff0a;padding:8px 10px}.ref-table tr:hover td{background:#ffffff08}.current-band td{background:var(--accent-dim);color:var(--calc-text-primary);font-weight:700}.ref-table tr.current-band:hover td{background:var(--accent-dim)}.care-box{border-left:3px solid var(--calc-rose);border-radius:var(--calc-radius-md);background:#fb71850f;margin:0 0 1.25rem;padding:12px 16px}.care-box h3{color:var(--calc-text-primary);margin-bottom:6px;font-size:.9rem}.care-box ul{color:var(--calc-text-faded);padding-left:1.1rem;font-size:.85rem;line-height:1.7}.ref-note{color:var(--calc-text-faded);font-size:.8rem;line-height:1.7}.ref-note p{margin-bottom:.5rem}.ref-note em{font-style:italic}.disclaimer-note{color:var(--calc-text-dim);font-size:.77rem;font-style:italic}.page-sections-outer{max-width:1400px;margin:0 auto;padding:0 1.5rem 3rem}.calc-breadcrumb{color:var(--calc-text-dim);margin-bottom:.75rem;padding:8px 0 0;font-size:.78rem}.calc-breadcrumb a{color:var(--calc-text-faded);text-decoration:none}.calc-breadcrumb a:hover{color:var(--accent)}[data-theme=light]{--accent:var(--calc-color-health);--accent-rgb:var(--calc-color-health-rgb);--accent-dim:rgba(var(--accent-rgb), .1)}[data-theme=light] body{color:#0f172a;background:#e8edf5}[data-theme=light] .disclaimer-banner{color:#334155;background:#eff9fb;border-color:#0891b240}[data-theme=light] .input-card,[data-theme=light] .result-card,[data-theme=light] .analysis-card{background:#fff;border-color:#0000001a;box-shadow:0 2px 10px #0000000f}[data-theme=light] .action-btn{color:#475569;background:#fff;border-color:#0000001f}[data-theme=light] .action-btn:hover{color:#7c3aed;border-color:#7c3aed}[data-theme=light] .action-btn--reset{color:#e11d48}[data-theme=light] .action-btn--reset:hover{color:#e11d48;border-color:#e11d48}[data-theme=light] .field label,[data-theme=light] .field legend{color:#475569}[data-theme=light] .field input,[data-theme=light] .field select{color:#0f172a;background:#f0f4f9;border-color:#0000001f}[data-theme=light] .field input[type=datetime-local]{color-scheme:light}[data-theme=light] .field input:focus,[data-theme=light] .field select:focus{border-color:#7c3aed;box-shadow:0 0 0 3px #7c3aed1f}[data-theme=light] .field input::placeholder{color:#0006}[data-theme=light] .seg-btn,[data-theme=light] .chip{color:#475569;background:#f0f4f9;border-color:#00000024}[data-theme=light] .seg-btn:hover,[data-theme=light] .chip:hover{color:#0f172a;border-color:#7c3aed}[data-theme=light] .seg-btn.active{color:#0f172a;background:#7c3aed1a;border-color:#7c3aed}[data-theme=light] .age-computed{color:#0f172a}[data-theme=light] .age-computed.is-error{color:#be123c}[data-theme=light] .prior-reading{border-color:#0003}[data-theme=light] .prior-reading summary{color:#0f172a}[data-theme=light] .summary-note{color:#64748b}[data-theme=light] .zone-badge{color:#0f172a}[data-theme=light] .zone-sub{color:#64748b}[data-theme=light] .zone-meter__marker{background:#0f172a;box-shadow:0 0 0 2px #fff}[data-theme=light] .zone-meter__labels{color:#64748b}[data-theme=light] .stat-list,[data-theme=light] .stat-row{border-color:#00000014}[data-theme=light] .stat-row dt{color:#64748b}[data-theme=light] .stat-row dd{color:#0f172a}[data-theme=light] .result-interpretation{color:#475569}[data-theme=light] .alert-danger{color:#7f1d1d;background:#fff1f2;border-color:#e11d484d}[data-theme=light] .alert-info{color:#1e3a5f;background:#eff6ff;border-color:#3b82f640}[data-theme=light] .next-step{color:#475569;background:#f0f4f9;border-color:#0000001a}[data-theme=light] .next-step strong{color:#0f172a}[data-theme=light] .chart-note{color:#475569}[data-theme=light] .ref-table th{color:#64748b;background:#00000008}[data-theme=light] .ref-table td{color:#0f172a;border-color:#0000000f}[data-theme=light] .ref-table tr:hover td{background:#f0f4f9}[data-theme=light] .current-band td{color:#0f172a;background:#7c3aed1f}[data-theme=light] .ref-table tr.current-band:hover td{background:#7c3aed1f}[data-theme=light] .care-box{background:#fff1f2}[data-theme=light] .care-box h3{color:#0f172a}[data-theme=light] .care-box ul,[data-theme=light] .ref-note{color:#475569}[data-theme=light] .disclaimer-note{color:#64748b}[data-theme=light] .calc-breadcrumb a{color:#475569}[data-theme=light] .calc-breadcrumb a:hover{color:#7c3aed}[data-theme=light] .card-title,[data-theme=light] .input-hint{color:#64748b}@media print{.action-bar,.glass-navbar,.calc-back-to-top,.seg,.chip-row,#btn-drawn-now{display:none}.prior-reading{border:0}}@media (width<=768px){.main-container{padding:20px 14px 2rem}.page-title{margin-top:.25rem}.page-subtitle{margin-bottom:.75rem;font-size:.9rem}.disclaimer-banner{margin-bottom:1rem}.input-card,.result-card,.analysis-card{padding:1rem}.input-card{gap:1rem}.action-bar{grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.action-btn{min-height:44px}.chart-wrap{height:240px}.zone-badge{font-size:1.45rem}}