.bfbmi-wrap {
--bfbmi-primary: #0F2A3F;
--bfbmi-secondary: #1FAE6E;
--bfbmi-accent: #FF8A3D;
--bfbmi-button: #2F80ED;
--bfbmi-radius: 16px;
--bfbmi-font-size: 16px;
--bfbmi-ink: #17212B;
--bfbmi-muted: #5B6B77;
--bfbmi-line: #E4EAEE;
--bfbmi-surface: #FFFFFF;
--bfbmi-bg-tint: #F4F8F9;
--bfbmi-under: #2F80ED;
--bfbmi-healthy: #1FAE6E;
--bfbmi-over: #FF8A3D;
--bfbmi-obese: #E2564B;
display: block;
box-sizing: border-box;
max-width: 880px;
margin: 0 auto;
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
font-size: var(--bfbmi-font-size);
line-height: 1.6;
color: var(--bfbmi-ink);
}
.bfbmi-wrap *,
.bfbmi-wrap *::before,
.bfbmi-wrap *::after {
box-sizing: inherit;
}
.bfbmi-wrap img { max-width: 100%; }
.bfbmi-wrap .screen-reader-text {
position: absolute !important;
width: 1px;
height: 1px;
overflow: hidden;
clip: rect(1px, 1px, 1px, 1px);
white-space: nowrap;
} .bfbmi-card {
background: var(--bfbmi-surface);
border-radius: var(--bfbmi-radius);
box-shadow: 0 1px 2px rgba(15, 42, 63, 0.06), 0 12px 32px -16px rgba(15, 42, 63, 0.18);
}
.bfbmi-btn {
display: inline-flex;
align-items: center;
justify-content: center;
gap: 0.5em;
padding: 0.85em 1.6em;
font-size: 1em;
font-weight: 700;
letter-spacing: 0.01em;
border-radius: calc(var(--bfbmi-radius) * 0.65);
border: 2px solid transparent;
cursor: pointer;
transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
min-height: 48px;
}
.bfbmi-btn-primary {
background: linear-gradient(135deg, var(--bfbmi-button), var(--bfbmi-secondary));
color: #fff;
box-shadow: 0 10px 24px -10px color-mix(in srgb, var(--bfbmi-button) 70%, transparent);
}
.bfbmi-btn-primary:hover { transform: translateY(-1px); box-shadow: 0 14px 28px -10px color-mix(in srgb, var(--bfbmi-button) 75%, transparent); }
.bfbmi-btn-primary:active { transform: translateY(0); }
.bfbmi-btn-ghost {
background: transparent;
border-color: var(--bfbmi-line);
color: var(--bfbmi-primary);
}
.bfbmi-btn-ghost:hover { border-color: var(--bfbmi-button); color: var(--bfbmi-button); }
.bfbmi-wrap button:focus-visible,
.bfbmi-wrap input:focus-visible,
.bfbmi-wrap a:focus-visible {
outline: 3px solid var(--bfbmi-button);
outline-offset: 2px;
} .bfbmi-calculator {
position: relative;
overflow: hidden;
padding: clamp(1.5rem, 4vw, 2.75rem);
background: linear-gradient(160deg, var(--bfbmi-primary) 0%, color-mix(in srgb, var(--bfbmi-primary) 80%, #000 10%) 60%, var(--bfbmi-primary) 100%);
color: #fff;
isolation: isolate;
}
.bfbmi-calculator::before {
content: "";
position: absolute;
inset: -40% -10% auto auto;
width: 60%;
height: 140%;
background: radial-gradient(circle at 70% 30%, color-mix(in srgb, var(--bfbmi-secondary) 55%, transparent), transparent 70%);
z-index: -1;
pointer-events: none;
}
.bfbmi-title {
margin: 0 0 0.35em;
font-size: clamp(1.6rem, 3.4vw, 2.2rem);
font-weight: 800;
letter-spacing: -0.01em;
line-height: 1.15;
}
.bfbmi-subtitle {
margin: 0 0 1.75em;
max-width: 46em;
color: rgba(255, 255, 255, 0.82);
font-size: 1.02em;
}
.bfbmi-form { display: block; }
.bfbmi-field-group { margin-bottom: 1.25em; }
.bfbmi-field-row {
display: grid;
grid-template-columns: 1fr;
gap: 1.25em;
}
@media (min-width: 640px) {
.bfbmi-field-row { grid-template-columns: 1fr 1fr; }
}
.bfbmi-label {
display: block;
margin-bottom: 0.5em;
font-weight: 700;
font-size: 0.92em;
letter-spacing: 0.01em;
color: rgba(255, 255, 255, 0.92);
}
.bfbmi-input {
width: 100%;
min-height: 48px;
padding: 0.7em 0.9em;
font-size: 1.05em;
font-family: inherit;
color: var(--bfbmi-ink);
background: #fff;
border: 2px solid transparent;
border-radius: calc(var(--bfbmi-radius) * 0.55);
transition: box-shadow 0.15s ease, border-color 0.15s ease;
}
.bfbmi-input:focus {
border-color: var(--bfbmi-button);
box-shadow: 0 0 0 4px color-mix(in srgb, var(--bfbmi-button) 25%, transparent);
outline: none;
}
.bfbmi-input.bfbmi-invalid { border-color: var(--bfbmi-obese); }
.bfbmi-two-up {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 0.9em;
}
.bfbmi-toggle-pair {
display: inline-flex;
flex-wrap: wrap;
gap: 0.6em;
}
.bfbmi-radio-pill {
position: relative;
display: inline-flex;
align-items: center;
padding: 0.6em 1.1em;
min-height: 44px;
border-radius: 999px;
background: rgba(255, 255, 255, 0.1);
border: 2px solid rgba(255, 255, 255, 0.25);
color: rgba(255, 255, 255, 0.92);
font-weight: 600;
font-size: 0.95em;
cursor: pointer;
transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.bfbmi-radio-pill input {
position: absolute;
opacity: 0;
width: 100%;
height: 100%;
cursor: pointer;
margin: 0;
}
.bfbmi-radio-pill:has(input:checked) {
background: var(--bfbmi-accent);
border-color: var(--bfbmi-accent);
color: #241505;
}
.bfbmi-radio-pill:has(input:focus-visible) {
outline: 3px solid #fff;
outline-offset: 2px;
}
.bfbmi-error {
margin: 0.5em 0 0;
color: #FFD7D2;
font-size: 0.9em;
font-weight: 600;
}
.bfbmi-calculator .bfbmi-error { color: #FFE1B8; }
.bfbmi-actions {
display: flex;
flex-wrap: wrap;
gap: 0.9em;
margin-top: 1.5em;
}
.bfbmi-privacy-note {
margin-top: 1.25em;
font-size: 0.85em;
color: rgba(255, 255, 255, 0.65);
}
.bfbmi-disclaimer {
margin-top: 2em;
padding-top: 1.25em;
border-top: 1px solid rgba(255, 255, 255, 0.18);
font-size: 0.83em;
color: rgba(255, 255, 255, 0.6);
} .bfbmi-hide-field { display: none !important; } .bfbmi-result {
margin-top: 2em;
padding-top: 2em;
border-top: 1px solid rgba(255, 255, 255, 0.18);
animation: bfbmi-fade-up 0.35s ease both;
}
@keyframes bfbmi-fade-up {
from { opacity: 0; transform: translateY(10px); }
to { opacity: 1; transform: translateY(0); }
}
.bfbmi-result-top { text-align: center; margin-bottom: 1.5em; }
.bfbmi-result-label {
margin: 0;
font-weight: 700;
letter-spacing: 0.08em;
text-transform: uppercase;
font-size: 0.8em;
color: rgba(255, 255, 255, 0.7);
}
.bfbmi-result-value {
margin: 0.1em 0;
font-size: clamp(3rem, 9vw, 4.2rem);
font-weight: 800;
line-height: 1;
background: linear-gradient(135deg, #fff, var(--bfbmi-secondary));
-webkit-background-clip: text;
background-clip: text;
color: transparent;
}
.bfbmi-result-category {
display: inline-block;
margin: 0.35em 0 0;
padding: 0.35em 1em;
border-radius: 999px;
font-weight: 700;
font-size: 0.95em;
background: rgba(255, 255, 255, 0.14);
}
.bfbmi-result-category[data-cat="under"] { background: var(--bfbmi-under); color: #fff; }
.bfbmi-result-category[data-cat="healthy"] { background: var(--bfbmi-healthy); color: #06210f; }
.bfbmi-result-category[data-cat="over"] { background: var(--bfbmi-over); color: #2a1200; }
.bfbmi-result-category[data-cat="obese"] { background: var(--bfbmi-obese); color: #fff; } .bfbmi-gauge { margin: 1.75em 0; }
.bfbmi-gauge-track {
position: relative;
display: flex;
height: 22px;
border-radius: 999px;
overflow: visible;
box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.15);
}
.bfbmi-gauge-seg { display: block; height: 100%; }
.bfbmi-gauge-seg:first-child { border-radius: 999px 0 0 999px; }
.bfbmi-gauge-seg:last-child { border-radius: 0 999px 999px 0; }
.bfbmi-seg-under { flex: 1.85; background: var(--bfbmi-under); }
.bfbmi-seg-healthy { flex: 2.15; background: var(--bfbmi-healthy); }
.bfbmi-seg-over { flex: 2.0; background: var(--bfbmi-over); }
.bfbmi-seg-obese { flex: 2.0; background: var(--bfbmi-obese); }
.bfbmi-gauge-marker {
position: absolute;
top: 50%;
left: 0%;
width: 34px;
height: 34px;
margin-left: -17px;
border-radius: 50%;
background: #fff;
border: 5px solid var(--bfbmi-primary);
box-shadow: 0 4px 10px rgba(0, 0, 0, 0.35);
transform: translateY(-50%);
transition: left 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}
.bfbmi-gauge-labels {
display: flex;
justify-content: space-between;
margin-top: 0.6em;
font-size: 0.78em;
font-weight: 700;
color: rgba(255, 255, 255, 0.75);
text-align: center;
}
.bfbmi-gauge-labels span { flex: 1; }
.bfbmi-child-note {
padding: 0.9em 1.1em;
margin-bottom: 1.25em;
border-radius: calc(var(--bfbmi-radius) * 0.5);
background: rgba(255, 255, 255, 0.1);
border: 1px solid rgba(255, 255, 255, 0.22);
font-size: 0.92em;
}
.bfbmi-message {
font-size: 1.02em;
color: rgba(255, 255, 255, 0.9);
margin-bottom: 1.5em;
}
.bfbmi-result-grid {
display: grid;
grid-template-columns: 1fr;
gap: 1em;
margin-bottom: 1.5em;
}
@media (min-width: 640px) {
.bfbmi-result-grid { grid-template-columns: 1fr 1fr; }
}
.bfbmi-result-tile {
padding: 1em 1.1em;
border-radius: calc(var(--bfbmi-radius) * 0.6);
background: rgba(255, 255, 255, 0.08);
border: 1px solid rgba(255, 255, 255, 0.16);
}
.bfbmi-tile-label {
display: block;
font-size: 0.78em;
font-weight: 700;
text-transform: uppercase;
letter-spacing: 0.05em;
color: rgba(255, 255, 255, 0.65);
margin-bottom: 0.35em;
}
.bfbmi-tile-value { font-size: 1.15em; font-weight: 700; }
.bfbmi-entered-info {
padding: 1.1em 1.25em;
border-radius: calc(var(--bfbmi-radius) * 0.6);
background: #fff;
color: var(--bfbmi-ink);
margin-bottom: 1.5em;
}
.bfbmi-entered-info-title {
margin: 0 0 0.75em;
font-size: 0.95em;
font-weight: 800;
color: var(--bfbmi-primary);
}
.bfbmi-entered-list {
display: grid;
grid-template-columns: repeat(2, 1fr);
gap: 0.9em 1.5em;
margin: 0;
}
.bfbmi-entered-list dt {
font-size: 0.75em;
font-weight: 700;
text-transform: uppercase;
letter-spacing: 0.04em;
color: var(--bfbmi-muted);
margin-bottom: 0.2em;
}
.bfbmi-entered-list dd { margin: 0; font-weight: 700; }
.bfbmi-result-actions { margin-top: 0; }
.bfbmi-share-status {
min-height: 1.4em;
margin: 0.6em 0 0;
font-size: 0.88em;
color: rgba(255, 255, 255, 0.85);
} .bfbmi-content,
.bfbmi-faq,
.bfbmi-related {
margin-top: 2.5em;
padding: clamp(1.25rem, 3vw, 2rem);
background: var(--bfbmi-bg-tint);
border-radius: var(--bfbmi-radius);
}
.bfbmi-content h2,
.bfbmi-faq h2,
.bfbmi-related h2 {
font-size: clamp(1.25rem, 2.4vw, 1.55rem);
font-weight: 800;
color: var(--bfbmi-primary);
margin: 1.6em 0 0.6em;
padding-left: 0.75em;
border-left: 5px solid var(--bfbmi-accent);
}
.bfbmi-content h2:first-child { margin-top: 0; }
.bfbmi-content h3 {
font-size: 1.05rem;
font-weight: 700;
color: var(--bfbmi-ink);
margin: 1.1em 0 0.4em;
}
.bfbmi-content p { color: var(--bfbmi-muted); margin: 0 0 0.9em; }
.bfbmi-list { margin: 0 0 1em; padding-left: 1.3em; color: var(--bfbmi-muted); }
.bfbmi-list li { margin-bottom: 0.5em; }
.bfbmi-table-wrap { overflow-x: auto; margin-bottom: 1em; }
.bfbmi-table {
width: 100%;
border-collapse: collapse;
min-width: 480px;
background: #fff;
border-radius: calc(var(--bfbmi-radius) * 0.5);
overflow: hidden;
}
.bfbmi-table th,
.bfbmi-table td {
padding: 0.85em 1em;
text-align: left;
border-bottom: 1px solid var(--bfbmi-line);
font-size: 0.95em;
}
.bfbmi-table th {
background: var(--bfbmi-primary);
color: #fff;
font-weight: 700;
}
.bfbmi-table tbody tr:last-child td { border-bottom: none; }
.bfbmi-table tbody tr:nth-child(even) { background: var(--bfbmi-bg-tint); } .bfbmi-faq-item {
border-bottom: 1px solid var(--bfbmi-line);
}
.bfbmi-faq-item:last-child { border-bottom: none; }
.bfbmi-faq-question-wrap { margin: 0; }
.bfbmi-faq-question {
display: flex;
align-items: center;
justify-content: space-between;
gap: 1em;
width: 100%;
padding: 1em 0.25em;
background: none;
border: none;
text-align: left;
font-size: 1.02em;
font-weight: 700;
color: var(--bfbmi-ink);
cursor: pointer;
min-height: 48px;
}
.bfbmi-faq-icon {
flex-shrink: 0;
position: relative;
width: 20px;
height: 20px;
}
.bfbmi-faq-icon::before,
.bfbmi-faq-icon::after {
content: "";
position: absolute;
background: var(--bfbmi-button);
border-radius: 2px;
}
.bfbmi-faq-icon::before { width: 100%; height: 3px; top: 50%; left: 0; transform: translateY(-50%); }
.bfbmi-faq-icon::after { width: 3px; height: 100%; top: 0; left: 50%; transform: translateX(-50%); transition: transform 0.2s ease; }
.bfbmi-faq-question[aria-expanded="true"] .bfbmi-faq-icon::after { transform: translateX(-50%) scaleY(0); }
.bfbmi-faq-answer { padding: 0 0.25em 1.1em; }
.bfbmi-faq-answer p { margin: 0; color: var(--bfbmi-muted); } .bfbmi-related-grid {
display: grid;
grid-template-columns: 1fr;
gap: 0.9em;
}
@media (min-width: 640px) {
.bfbmi-related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
.bfbmi-related-grid { grid-template-columns: repeat(3, 1fr); }
}
.bfbmi-related-card {
display: flex;
align-items: center;
justify-content: space-between;
gap: 0.75em;
padding: 1.1em 1.25em;
min-height: 48px;
background: #fff;
border-radius: calc(var(--bfbmi-radius) * 0.6);
border: 2px solid var(--bfbmi-line);
color: var(--bfbmi-primary);
font-weight: 700;
text-decoration: none;
transition: border-color 0.15s ease, transform 0.15s ease;
}
.bfbmi-related-card:hover {
border-color: var(--bfbmi-button);
transform: translateY(-2px);
}
.bfbmi-related-arrow { color: var(--bfbmi-accent); font-weight: 800; } @media (prefers-reduced-motion: reduce) {
.bfbmi-wrap * {
animation-duration: 0.001ms !important;
animation-iteration-count: 1 !important;
transition-duration: 0.001ms !important;
}
} @media print {
.bfbmi-wrap .bfbmi-form,
.bfbmi-wrap .bfbmi-actions,
.bfbmi-wrap .bfbmi-related,
.bfbmi-wrap .bfbmi-faq {
display: none !important;
}
.bfbmi-wrap .bfbmi-calculator {
background: none !important;
color: #000 !important;
}
.bfbmi-wrap .bfbmi-result-value,
.bfbmi-wrap .bfbmi-message,
.bfbmi-wrap .bfbmi-gauge-labels,
.bfbmi-wrap .bfbmi-entered-info {
color: #000 !important;
-webkit-text-fill-color: #000 !important;
}
} @media (max-width: 480px) {
.bfbmi-entered-list { grid-template-columns: 1fr 1fr; gap: 0.7em 1em; }
.bfbmi-btn { width: 100%; }
.bfbmi-actions { flex-direction: column; }
}