.bmi-section{padding:54px 0;background:var(--mist);color:var(--navy)}
.bmi-card{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:40px;background:var(--paper);border:1px solid var(--line);border-radius:30px;padding:36px;align-items:center}
.bmi-intro h2{font-size:clamp(28px,3vw,42px);line-height:1.5;margin:10px 0 16px}.bmi-intro>p{line-height:1.9}.bmi-eyebrow{font-size:18px;letter-spacing:.12em;font-weight:700;color:var(--muted)}
.bmi-intro .bmi-note{font-size:16px;color:var(--muted);margin:20px 0 14px}.bmi-source{font-size:14px;text-decoration:underline;text-underline-offset:4px;line-height:1.9}
.bmi-tool{min-width:0}.bmi-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:18px 0}.bmi-field{display:flex;flex-direction:column;gap:8px;min-width:0;font-size:17px;font-weight:700}
.bmi-field input{font:inherit;font-size:20px;width:100%;min-width:0;box-sizing:border-box;height:54px;padding:10px 14px;border:1px solid var(--line);border-radius:14px;background:var(--white);color:var(--navy);direction:ltr;text-align:start}
.bmi-choice{border:0;margin:0;padding:0;min-width:0}.bmi-choice legend{font-size:17px;font-weight:700;padding:0;margin:0 0 8px}.bmi-options{display:flex;gap:8px;flex-wrap:wrap}.bmi-options label{cursor:pointer;position:relative;flex:1;min-width:0}.bmi-options input{position:absolute;opacity:0;width:1px;height:1px}.bmi-options span{display:flex;align-items:center;justify-content:center;min-height:54px;padding:8px 10px;box-sizing:border-box;border:1px solid var(--line);border-radius:14px;font-size:16px;line-height:1.5;font-weight:700;background:var(--white);text-align:center}.bmi-options input:checked+span{background:#2B4050;color:#fff;border-color:#2B4050;box-shadow:inset 0 0 0 1px #8CA0AA}
.bmi-options input:focus-visible+span,.bmi-field input:focus-visible{outline:3px solid #698897;outline-offset:3px}.bmi-submit{width:100%;min-height:54px;background:#CE1D24!important;color:#fff!important;border-radius:14px;border:0;cursor:pointer}.bmi-submit:hover{background:#B2151D!important}.bmi-error{font-size:16px;color:#AD151C;line-height:1.8;margin:0 0 12px}.bmi-error:empty{display:none}.bmi-result{display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;padding:24px 18px;margin:20px 0 14px;background:var(--mist);border-radius:20px;font-size:17px;line-height:1.8}.bmi-result strong{font-size:54px;line-height:1.2;font-weight:800;font-variant-numeric:tabular-nums}.bmi-small{font-size:13px;line-height:1.9;color:var(--muted);margin:8px 0}.bmi-imperial-row{grid-template-columns:repeat(3,minmax(0,1fr))}.bmi-section [hidden]{display:none!important}
html[data-theme=dark] .bmi-error{color:#FFB3B6}html[data-theme=dark] .bmi-options input:checked+span{background:#C9DCE5;color:#172932;border-color:#C9DCE5}
@media(max-width:800px){.bmi-card{grid-template-columns:minmax(0,1fr);gap:24px;padding:26px}.bmi-intro{text-align:center}.bmi-section{padding:36px 0}}
@media(max-width:450px){.bmi-card{padding:20px 15px;border-radius:24px}.bmi-row{gap:10px}.bmi-intro h2{font-size:27px}.bmi-field,.bmi-choice legend{font-size:15px}.bmi-options span{font-size:14px;padding:8px}.bmi-result{font-size:15px}.bmi-intro .bmi-note{font-size:14px}}