.bdfk {
  --bdfk-navy: #2e3546;
  --bdfk-accent: #e8892f;
  --bdfk-accent-ink: #1f2533;
  --bdfk-line: rgba(46, 53, 70, .22);
  --bdfk-soft: #f4f5f8;
  margin: 0 0 2em;
  line-height: 1.5;
  color: inherit;
}
.bdfk *, .bdfk *::before, .bdfk *::after { box-sizing: border-box; }

.bdfk .bdfk-lead { margin: 0 0 1.5em; }

.bdfk .bdfk-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}
@media (max-width: 767px) {
  .bdfk .bdfk-grid { grid-template-columns: minmax(0, 1fr); gap: 20px; }
}

.bdfk .bdfk-h {
  margin: 0 0 12px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--bdfk-accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--bdfk-accent);
}
.bdfk .bdfk-form .bdfk-h ~ .bdfk-h { margin-top: 8px; }

.bdfk .bdfk-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 12px; }

.bdfk .bdfk-field { margin: 0 0 18px; padding: 0; border: 0; min-width: 0; }
.bdfk .bdfk-label {
  display: block;
  margin: 0 0 6px;
  padding: 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.3;
}
.bdfk .bdfk-hint { margin: 6px 0 0; font-size: 13px; line-height: 1.4; opacity: .75; }

.bdfk .bdfk-inwrap { position: relative; }
.bdfk .bdfk-input {
  display: block;
  width: 100%;
  min-height: 46px;
  margin: 0;
  padding: 8px 44px 8px 12px;
  border: 1px solid var(--bdfk-line);
  border-radius: 4px;
  background: #fff;
  color: #1f2533;
  font: inherit;
  font-size: 17px;
  font-variant-numeric: tabular-nums;
}
.bdfk .bdfk-unit {
  position: absolute;
  top: 50%;
  right: 12px;
  transform: translateY(-50%);
  font-size: 14px;
  color: #5d6576;
  pointer-events: none;
}

.bdfk .bdfk-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.bdfk .bdfk-chip { position: relative; margin: 0; cursor: pointer; }
.bdfk .bdfk-chip input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  margin: 0;
}
.bdfk .bdfk-chip span {
  display: block;
  min-height: 44px;
  padding: 10px 14px;
  border: 1px solid var(--bdfk-line);
  border-radius: 4px;
  background: #fff;
  color: #1f2533;
  font-size: 14px;
  line-height: 22px;
}
.bdfk .bdfk-chip input:checked + span {
  border-color: var(--bdfk-navy);
  background: var(--bdfk-navy);
  color: #fff;
}
.bdfk .bdfk-chip input:focus-visible + span,
.bdfk .bdfk-input:focus-visible {
  outline: 3px solid var(--bdfk-accent);
  outline-offset: 2px;
}
.bdfk .bdfk-input:focus { border-color: var(--bdfk-navy); }

.bdfk .bdfk-result {
  padding: 22px;
  border-top: 5px solid var(--bdfk-accent);
  background: var(--bdfk-soft);
  color: #1f2533;
}
@media (min-width: 768px) {
  .bdfk .bdfk-result { position: sticky; top: 90px; }
}
.bdfk .bdfk-result-title { margin: 0 0 14px; font-size: 20px; line-height: 1.2; color: #1f2533; }
.bdfk .bdfk-error {
  margin: 0 0 12px;
  padding: 10px 12px;
  border-left: 4px solid #c0392b;
  background: #fff;
  color: #9b2c1f;
  font-size: 14px;
}
.bdfk .bdfk-error[hidden] { display: none; }
.bdfk [data-bdfk-values].is-stale { opacity: .4; }

.bdfk .bdfk-big {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 14px;
  margin: 0 0 14px;
}
.bdfk .bdfk-big > div { padding: 12px 14px; background: #fff; }
.bdfk .bdfk-big dt { margin: 0; font-size: 14px; font-weight: 600; color: #5d6576; }
.bdfk .bdfk-big dd { margin: 0; font-size: 17px; }
.bdfk .bdfk-big dd b {
  font-size: 36px;
  line-height: 1.1;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--bdfk-navy);
}
.bdfk .bdfk-big .bdfk-sub { margin-top: 4px; font-size: 13px; color: #5d6576; }

.bdfk .bdfk-pics { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); gap: 10px; align-items: end; margin: 0 0 6px; }
.bdfk .bdfk-pic { margin: 0; text-align: center; }
.bdfk .bdfk-pic figcaption { margin: 2px 0 0; font-size: 12px; color: #5d6576; }
.bdfk .bdfk-plan, .bdfk .bdfk-section { display: block; width: 100%; height: auto; max-height: 200px; margin: 0 auto; }
.bdfk .bdfk-plan-strip { fill: #8a92a3; }
@media (max-width: 520px) {
  .bdfk .bdfk-pics { grid-template-columns: minmax(0, 1fr); }
  .bdfk .bdfk-pic .bdfk-section { max-width: 170px; }
}
.bdfk .bdfk-plan-inner { fill: var(--bdfk-accent); }
.bdfk .bdfk-sec-concrete { fill: #cfd3db; stroke: #8a92a3; stroke-width: 1; }
.bdfk .bdfk-sec-stir { fill: none; stroke: var(--bdfk-navy); stroke-width: 1.5; }
.bdfk .bdfk-sec-bar { fill: var(--bdfk-accent); stroke: var(--bdfk-navy); stroke-width: 1; }
.bdfk .bdfk-sec-dim { stroke: #5d6576; stroke-width: 1; }
.bdfk .bdfk-sec-txt { fill: #3a4152; font-size: 12px; }

.bdfk .bdfk-h3 { margin: 16px 0 6px; font-size: 15px; line-height: 1.3; color: #1f2533; }
.bdfk .bdfk-list { margin: 0; padding: 0 0 0 18px; font-size: 14px; }
.bdfk .bdfk-list li { margin: 0 0 4px; }
.bdfk .bdfk-list b { font-variant-numeric: tabular-nums; }
.bdfk .bdfk-note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--bdfk-line);
  font-size: 13px;
  color: #5d6576;
}

.bdfk .bdfk-safety { margin: 24px 0; font-size: 14px; opacity: .85; }

.bdfk .bdfk-table { width: 100%; margin: 0 0 24px; border-collapse: collapse; font-size: 15px; }
.bdfk .bdfk-table caption {
  margin: 0 0 10px;
  text-align: left;
  font-size: 20px;
  font-weight: 700;
  caption-side: top;
  color: inherit;
}
.bdfk .bdfk-table th,
.bdfk .bdfk-table td {
  padding: 10px 12px;
  border: 1px solid var(--bdfk-line);
  text-align: left;
  vertical-align: top;
}
.bdfk .bdfk-table thead th { background: var(--bdfk-soft); font-weight: 600; }
.bdfk .bdfk-table tbody th { white-space: nowrap; font-weight: 600; }

.bdfk .bdfk-sticky { display: none; }
@media (max-width: 767px) {
  .bdfk .bdfk-sticky {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9990;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: 56px;
    padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px));
    background: var(--bdfk-navy);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.3;
    text-decoration: none;
    box-shadow: 0 -2px 12px rgba(0, 0, 0, .25);
  }
  .bdfk .bdfk-sticky[hidden] { display: none; }
  .bdfk .bdfk-sticky-more {
    flex: none;
    padding: 6px 12px;
    background: var(--bdfk-accent);
    color: var(--bdfk-accent-ink);
    font-size: 13px;
  }
  .bdfk .bdfk-table { font-size: 14px; }
  .bdfk .bdfk-table th, .bdfk .bdfk-table td { padding: 8px; }
  .bdfk .bdfk-table tbody th { white-space: normal; }
}
@media (max-width: 380px) {
  .bdfk .bdfk-big dd b { font-size: 30px; }
}
@media (prefers-reduced-motion: reduce) {
  .bdfk * { transition: none !important; scroll-behavior: auto !important; }
}