.bmi-subtitle {
  color: var(--muted);
  margin: -0.5rem 0 1.75rem;
  font-size: 1rem;
}

/* ── Tool card ── */
.bmi-tool {
  background: var(--card);
  border: 1px solid #e4e8f0;
  border-radius: 20px;
  padding: 1.5rem 1.75rem 2rem;
  margin-bottom: 2.5rem;
}

/* ── Unit toggle ── */
.bmi-unit-toggle {
  display: flex;
  justify-content: flex-end;
  gap: 0.25rem;
  margin-bottom: 1rem;
}

.bmi-unit-btn {
  padding: 0.3rem 1rem;
  border: 1.5px solid #e4e8f0;
  border-radius: 20px;
  background: transparent;
  color: var(--muted);
  font-size: 0.82rem;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.bmi-unit-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ── Input grid ── */
.bmi-inputs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem 1.5rem;
}

.bmi-field--full {
  grid-column: 1 / -1;
}

.bmi-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.5rem;
}

.bmi-input-row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.bmi-input {
  flex: 1;
  min-width: 0;
  padding: 0.55rem 0.75rem;
  border: 1.5px solid #e4e8f0;
  border-radius: 10px;
  font-size: 1rem;
  font-family: inherit;
  color: var(--text);
  background: var(--bg);
  transition: border-color 0.15s, box-shadow 0.15s;
  -moz-appearance: textfield;
}

.bmi-input::-webkit-inner-spin-button,
.bmi-input::-webkit-outer-spin-button {
  -webkit-appearance: none;
}

.bmi-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(11, 110, 253, 0.12);
}

.bmi-input--sm {
  max-width: 4.5rem;
}

.bmi-input-unit {
  font-size: 0.9rem;
  color: var(--muted);
  white-space: nowrap;
  flex-shrink: 0;
}

.bmi-hidden {
  display: none !important;
}

/* ── Gender toggle ── */
.bmi-gender-toggle {
  display: flex;
  gap: 0.5rem;
}

.bmi-gender-btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.55rem 0.5rem;
  border: 1.5px solid #e4e8f0;
  border-radius: 10px;
  background: transparent;
  color: var(--muted);
  font-size: 0.875rem;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
  white-space: nowrap;
}

.bmi-gender-btn.active {
  border-color: var(--accent);
  background: rgba(11, 110, 253, 0.07);
  color: var(--accent);
}

/* ── Standard select ── */
.bmi-select {
  width: 100%;
  padding: 0.55rem 0.75rem;
  border: 1.5px solid #e4e8f0;
  border-radius: 10px;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text);
  background: var(--bg);
  cursor: pointer;
  appearance: auto;
  transition: border-color 0.15s;
}

.bmi-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(11, 110, 253, 0.12);
}

/* ── Result section ── */
.bmi-result {
  display: none;
  border-top: 1px solid #e4e8f0;
  margin-top: 1.75rem;
  padding-top: 1.75rem;
}

.bmi-result--visible {
  display: block;
  animation: bmi-fadein 0.3s ease-out;
}

@keyframes bmi-fadein {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.bmi-result-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
}

.bmi-result-label-text {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.bmi-result-main {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
}

.bmi-result-value {
  font-size: 3rem;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}

.bmi-result-category {
  font-size: 1.1rem;
  font-weight: 700;
  transition: color 0.25s;
}

/* ── BMI Bar ── */
.bmi-bar-wrapper {
  position: relative;
  padding-top: 2.5rem;
  padding-bottom: 1rem;
  user-select: none;
}

.bmi-bar-track {
  position: relative;
  height: 14px;
  border-radius: 7px;
  overflow: visible;
  box-shadow: inset 0 1px 3px rgba(0,0,0,.1);
}

/* Marker */
.bmi-marker {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--marker-color, var(--accent));
  box-shadow: 0 2px 10px rgba(0,0,0,.18);
  transition: left 0.4s cubic-bezier(.34, 1.56, .64, 1);
  z-index: 2;
  cursor: default;
}

/* Callout bubble above marker */
.bmi-marker-callout {
  position: absolute;
  bottom: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 800;
  padding: 3px 8px;
  border-radius: 6px;
  white-space: nowrap;
  line-height: 1.4;
  pointer-events: none;
}

.bmi-marker-callout::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: inherit;
}

/* Tick marks */
.bmi-bar-ticks {
  position: relative;
  height: 1.5rem;
  margin-top: 0.3rem;
}

.bmi-bar-tick {
  position: absolute;
  transform: translateX(-50%);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--muted);
  white-space: nowrap;
  padding-top: 0.45rem;
}

.bmi-bar-tick::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1.5px;
  height: 5px;
  background: #c0c8d8;
}

/* Color legend */
.bmi-bar-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-top: 0.75rem;
}

.bmi-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.82rem;
  color: var(--muted);
}

.bmi-legend-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ── Notes ── */
.bmi-notes {
  margin-top: 1.25rem;
}

.bmi-note {
  margin: 0.5rem 0 0;
  padding: 0.65rem 1rem;
  background: #fff8e1;
  border-left: 3px solid #ffca28;
  border-radius: 0 8px 8px 0;
  font-size: 0.85rem;
  color: #6d5c0e;
  line-height: 1.5;
}

/* ── SEO section ── */
.bmi-seo {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid #e4e8f0;
  color: var(--muted);
  font-size: 0.92rem;
}

.bmi-seo h2 {
  font-size: 1.1rem;
  color: var(--text);
  margin: 0 0 0.5rem;
}

.bmi-seo h3 {
  font-size: 0.95rem;
  color: var(--text);
  margin: 1.25rem 0 0.3rem;
}

.bmi-seo p {
  margin: 0.25rem 0 0;
  line-height: 1.65;
}

/* ── Responsive ── */
@media (max-width: 520px) {
  .bmi-tool {
    padding: 1.25rem 1.25rem 1.5rem;
  }

  .bmi-inputs {
    grid-template-columns: 1fr;
  }

  .bmi-result-value {
    font-size: 2.5rem;
  }

  .bmi-result-top {
    flex-direction: column;
    align-items: flex-start;
  }

  .bmi-bar-ticks {
    height: 2rem;
  }

  .bmi-bar-tick {
    font-size: 0.68rem;
  }
}

@media (max-width: 360px) {
  .bmi-result-value {
    font-size: 2.2rem;
  }
}