:root{--brand:#0d6efd;--bg:#ffffff;--text:#0b1220;--muted:#6c757d;--success:#198754;--warning:#fd7e14;--danger:#dc3545;--card-border:#e3e6ea}body,html{background:var(--bg);color:var(--text)}header.hero{background:linear-gradient(180deg,#f8fafc 0,#fff 100%);border-bottom:1px solid var(--card-border)}header.hero h1{font-weight:700;letter-spacing:-.01em}header.hero h2{color:var(--muted);font-size:1.05rem;font-weight:500;margin-top:.5rem}.ad-slot{border:2px dashed #c9d3e0;background:#f8fbff;display:flex;align-items:center;justify-content:center;color:#5c6c7d;font-size:.95rem;border-radius:.5rem}.ad-top{min-height:90px;width:100%;max-width:100%}.ad-300x250{min-height:250px;min-width:300px;max-width:100%}.card{border-color:var(--card-border)}.results-value{font-size:clamp(2.2rem, 4vw, 3rem);font-weight:800;line-height:1.1}.results-badge{font-size:.95rem}.bmi-scale{position:relative;height:16px;border-radius:999px;overflow:hidden;background:linear-gradient(90deg,#6ec1ff 0 18.5%,#53d39d 18.5% 24.9%,#ffd453 24.9% 29.9%,#ff8c8c 29.9% 100%)}.bmi-marker{position:absolute;top:-6px;width:0;height:28px;border-left:3px solid #111827;border-right:3px solid transparent;transform:translateX(-1px)}.form-text,.form-text small{color:var(--muted)}.btn-icon{display:inline-flex;align-items:center;gap:.5rem}.favorite-toggle[aria-pressed=true] .bi{color:#f59e0b;fill:#f59e0b}.table-cats td,.table-cats th{vertical-align:middle}.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;border:0!important}footer{border-top:1px solid var(--card-border);background:#f9fbfd}.share-buttons a{text-decoration:none}.invalid-feedback{display:block;visibility:hidden;height:0}.was-validated .form-control:invalid~.invalid-feedback,input.is-invalid~.invalid-feedback{visibility:visible;height:auto}@media (max-width:575.98px){.ad-top{min-height:60px}}