:root{color-scheme:light;--color-bg: #ffffff;--color-surface: #f6f8fb;--color-surface-2: #eaeff5;--color-surface-3: #dde5ee;--color-border: #d9e0e9;--color-border-strong: #bcc7d4;--color-text: #17212e;--color-text-muted: #51617a;--color-text-subtle: #6b7889;--color-primary-50: #eef4fc;--color-primary-100: #d7e7fa;--color-primary-200: #aecdf1;--color-primary-300: #7db0e8;--color-primary: #1565c0;--color-primary-dark: #0f4f9c;--color-primary-900: #0b3a75;--color-primary-contrast: #ffffff;--color-secondary: #0e8c7d;--color-secondary-dark: #0a6f63;--color-secondary-50: #e6f5f2;--color-secondary-contrast: #ffffff;--color-underweight: #2f80ed;--color-healthy: #1e8e5a;--color-overweight: #b56b00;--color-obesity: #c0392b;--color-success: #1e8e5a;--color-success-bg: #e7f4ec;--color-warning: #a86400;--color-warning-bg: #fdf3e2;--color-info: #1565c0;--color-info-bg: #eaf2fc;--color-error: #b3261e;--color-error-bg: #fdecea;--font-sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji", sans-serif;--font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;--font-size-base: 1.0625rem;--line-height: 1.65;--text-xs: .78rem;--text-sm: .875rem;--text-md: 1rem;--text-lg: 1.19rem;--text-xl: 1.45rem;--text-2xl: 1.77rem;--text-3xl: 2.15rem;--text-4xl: 2.6rem;--maxw: 760px;--maxw-wide: 1080px;--maxw-narrow: 640px;--radius: 14px;--radius-sm: 9px;--radius-lg: 20px;--radius-pill: 999px;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.5rem;--space-6: 2rem;--space-7: 2.5rem;--space-8: 3rem;--space-10: 4rem;--shadow-sm: 0 1px 2px rgba(16, 33, 58, .06);--shadow: 0 4px 16px rgba(16, 33, 58, .08);--shadow-md: 0 8px 28px rgba(16, 33, 58, .1);--shadow-lg: 0 18px 48px rgba(16, 33, 58, .14);--focus-ring: 0 0 0 3px rgba(21, 101, 192, .4);--focus-color: 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var(--space-2)}h4{font-size:var(--text-md);font-weight:700;margin:var(--space-5) 0 var(--space-2)}p{margin:0 0 var(--space-4)}.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--space-4)}.container-wide{max-width:var(--maxw-wide)}main{flex:1 0 auto;padding-block:var(--space-6)}.lead{font-size:var(--text-lg);line-height:1.55;color:var(--color-text-muted)}.section{margin-top:var(--space-6)}.print-brand{display:none}.worksheet td{height:2.2rem}@media print{.site-header,.site-footer,.breadcrumbs,.no-print,.last-updated{display:none!important}.print-brand{display:block;margin-bottom:var(--space-4);font-weight:700}body{background:#fff;color:#000}main{padding-block:0}a{color:#000;text-decoration:none}.bmi-table th,.bmi-table td{border:1px solid #000}}.last-updated{margin-top:var(--space-8);padding-top:var(--space-3);border-top:1px solid var(--color-border);font-size:.85rem;color:var(--color-text-muted)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:absolute;left:var(--space-2);top:-3rem;background:var(--color-primary);color:var(--color-primary-contrast);padding:var(--space-2) var(--space-3);border-radius:var(--radius-sm);z-index:100;transition:top .15s ease}.skip-link:focus{top:var(--space-2)}:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.site-header{border-bottom:1px solid var(--color-border);background:var(--color-bg);position:sticky;top:0;z-index:100}.site-header .bar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:var(--space-4);padding-block:var(--space-3)}.brand{font-weight:700;font-size:1.15rem;text-decoration:none;color:var(--color-text);display:inline-flex;align-items:center;gap:var(--space-2);margin-inline-end:auto}.brand .mark{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:7px;background:var(--color-primary);color:#fff;font-size:.8rem;font-weight:700}.site-nav ul{list-style:none;display:flex;flex-wrap:wrap;gap:var(--space-3);margin:0;padding:0;font-size:.95rem}.site-nav a{text-decoration:none;color:var(--color-text-muted);padding-bottom:3px;border-bottom:2px solid transparent}.site-nav a:hover{color:var(--color-primary)}.site-nav a[aria-current=page]{color:var(--color-primary);font-weight:700;border-bottom-color:var(--color-primary)}.nav-toggle{align-items:center;justify-content:center;width:44px;height:44px;padding:0;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);color:var(--color-text);cursor:pointer}.nav-toggle:hover{border-color:var(--color-primary);color:var(--color-primary)}.nav-toggle{display:none}.nav-toggle-bars,.nav-toggle-bars:before,.nav-toggle-bars:after{content:"";display:block;width:22px;height:2px;background:currentColor;border-radius:2px;transition:transform .2s ease,opacity .2s ease}.nav-toggle-bars{position:relative}.nav-toggle-bars:before{position:absolute;top:-7px}.nav-toggle-bars:after{position:absolute;top:7px}.nav-toggle[aria-expanded=true] .nav-toggle-bars{background:transparent}.nav-toggle[aria-expanded=true] .nav-toggle-bars:before{top:0;transform:rotate(45deg)}.nav-toggle[aria-expanded=true] .nav-toggle-bars:after{top:0;transform:rotate(-45deg)}@media(max-width:879px){.site-nav{flex-basis:100%;order:3}.site-nav ul{flex-direction:column;gap:var(--space-1);margin-top:var(--space-2)}.site-nav li a{display:block;padding:var(--space-3) 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var(--space-4);border-radius:999px;font:inherit;cursor:pointer;color:var(--color-text-muted)}.unit-toggle button[aria-pressed=true]{background:var(--color-bg);color:var(--color-primary);font-weight:600;box-shadow:var(--shadow-sm)}.field-grid{display:grid;grid-template-columns:1fr;gap:var(--space-4)}@media(min-width:480px){.field-grid.two{grid-template-columns:1fr 1fr}}.field{display:flex;flex-direction:column;gap:var(--space-1)}.field label{font-weight:600;font-size:.95rem}.field .hint{font-size:.8rem;color:var(--color-text-muted)}.field input,.field select{font:inherit;padding:var(--space-3);border:1px solid var(--color-border-strong);border-radius:var(--radius-sm);background:var(--color-bg);color:var(--color-text);min-height:46px;transition:border-color .15s ease,box-shadow .15s ease}.field input:hover,.field select:hover{border-color:var(--color-primary-300)}.field input:focus,.field select:focus{outline:none;border-color:var(--color-primary);box-shadow:var(--focus-ring)}.field 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a{font-weight:600;font-size:.9rem}.result.cat-underweight{border-left-color:var(--color-underweight)}.result.cat-healthy{border-left-color:var(--color-healthy)}.result.cat-overweight{border-left-color:var(--color-overweight)}.result.cat-obesity{border-left-color:var(--color-obesity)}.result.cat-child{border-left-color:var(--color-primary)}.result.cat-underweight .bmi-category{color:var(--color-underweight);background:var(--color-primary-50);--cat-icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpath d='M12 16v-4'/%3E%3Cpath d='M12 8h.01'/%3E%3C/svg%3E")}.result.cat-healthy .bmi-category{color:var(--color-healthy);background:var(--color-success-bg);--cat-icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' 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