/* BMI Calculator. Needs /assets/css/modern-tool-cards.css (tokens + .cat-calc accent). */
.bmi, .bmi *, .bmi *::before, .bmi *::after { box-sizing: border-box; }
.bmi { display: grid; gap: 1rem; }
.bmi [hidden] { display: none !important; }

.bmi-panel { background: var(--tc-bg); border: 1px solid var(--tc-border); border-radius: 20px; box-shadow: var(--tc-shadow); overflow: hidden; display: grid; }

.bmi-panel__head { display: flex; align-items: center; flex-wrap: wrap; gap: .6rem; padding: .9rem 1.25rem; background: var(--tc-surface); border-bottom: 1px solid var(--tc-border); }
.bmi-panel__head h3 { margin: 0; font-size: .8rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--tc-muted); }
.bmi-panel__head > i { color: var(--accent); font-size: 1.1rem; }

.bmi-body { display: grid; gap: 1.1rem; padding: 1.25rem; }

.bmi-units { display: inline-flex; gap: .4rem; background: var(--tc-surface); border: 1px solid var(--tc-border); border-radius: 12px; padding: .3rem; width: fit-content; }
.bmi-unit-btn { height: 2.2rem; padding: 0 1rem; font: inherit; font-size: .85rem; font-weight: 700; color: var(--tc-muted); background: transparent; border: none; border-radius: 9px; cursor: pointer; }
.bmi-unit-btn.is-active { color: #fff; background: var(--accent); }
.bmi-unit-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.bmi-fields { display: flex; flex-wrap: wrap; gap: 1rem; }
.bmi-field { display: grid; gap: .35rem; flex: 1 1 10rem; }
.bmi-field label { font-size: .8rem; font-weight: 600; color: var(--tc-muted); }
.bmi-box { display: flex; align-items: center; gap: .4rem; }
.bmi-box input {
  height: 2.6rem; padding: 0 .9rem; font: inherit; font-size: .95rem; width: 100%; max-width: 9rem;
  color: var(--tc-text); background: var(--tc-bg); border: 1px solid var(--tc-border); border-radius: 12px;
}
.bmi-box input:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
.bmi-box--split input { max-width: 5rem; }
.bmi-unit-label { font-size: .85rem; font-weight: 600; color: var(--tc-muted); }

.bmi-error { margin: 0; font-size: .85rem; font-weight: 600; color: #dc2626; }

.bmi-result { display: grid; gap: .8rem; padding-top: 1rem; border-top: 1px solid var(--tc-border); }
.bmi-result__value { font-size: 2.4rem; font-weight: 800; color: var(--accent); line-height: 1; font-variant-numeric: tabular-nums; }
.bmi-result__category { font-size: 1rem; font-weight: 700; color: var(--tc-text); }

.bmi-scale { display: grid; gap: .4rem; }
.bmi-scale__bar { position: relative; height: .7rem; border-radius: 999px; overflow: visible; display: flex; }
.bmi-scale__seg { flex: 1; height: 100%; }
.bmi-scale__seg:first-child { border-radius: 999px 0 0 999px; }
.bmi-scale__seg:last-child { border-radius: 0 999px 999px 0; }
.bmi-scale__seg--under { background: #38bdf8; }
.bmi-scale__seg--normal { background: #16a34a; }
.bmi-scale__seg--over { background: #f59e0b; }
.bmi-scale__seg--obese { background: #dc2626; }
.bmi-scale__marker {
  position: absolute; top: -.3rem; width: .3rem; height: 1.3rem; border-radius: 999px;
  background: var(--tc-text); border: 2px solid var(--tc-bg); box-shadow: 0 1px 3px rgba(0,0,0,.35);
  left: 0%; transform: translateX(-50%); transition: left .15s ease;
}
.bmi-scale__labels { display: flex; justify-content: space-between; font-size: .72rem; font-weight: 600; color: var(--tc-muted); }

.bmi-foot { margin: 0; display: flex; gap: .5rem; font-size: .84rem; color: var(--tc-muted); }
.bmi-foot i { color: var(--accent); margin-top: .15rem; }

.bmi-tablewrap { overflow-x: auto; }
.bmi-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.bmi-table th, .bmi-table td { text-align: left; padding: .6rem .8rem; border-bottom: 1px solid var(--tc-border); }
.bmi-table th { font-weight: 700; color: var(--tc-muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .03em; }