.bs-calc {
  max-width: 900px;
  margin: 32px auto;
  padding: 28px;
  border: 1px solid #dfe8e1;
  border-radius: 18px;
  background: #ffffff;
  box-shadow: 0 10px 28px rgba(32, 64, 43, 0.08);
  font-family: inherit;
  color: #243126;
  line-height: 1.65;
}

.bs-calc * {
  box-sizing: border-box;
}

.bs-calc__head {
  padding: 22px;
  margin: -4px -4px 24px;
  border-radius: 14px;
  background: #f3f8f3;
}

.bs-calc__eyebrow {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #55785f;
}

.bs-calc h2 {
  margin: 0 0 10px;
  font-size: clamp(1.45rem, 2.5vw, 1.9rem);
  line-height: 1.25;
  color: #173f26;
}

.bs-calc__head p {
  margin: 0;
}

.bs-calc__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.bs-calc__field label {
  display: block;
  margin-bottom: 7px;
  font-weight: 700;
  color: #294c32;
}

.bs-calc select,
.bs-calc input {
  width: 100%;
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid #cfdacf;
  border-radius: 10px;
  background: #fff;
  color: #243126;
  font: inherit;
}

.bs-calc select:focus,
.bs-calc input:focus {
  outline: 3px solid rgba(74, 130, 84, 0.14);
  border-color: #6b9872;
}

.bs-calc__input-unit {
  display: flex;
  align-items: center;
  gap: 8px;
}

.bs-calc__input-unit span {
  min-width: 24px;
  font-weight: 700;
  color: #55785f;
}

.bs-calc__button {
  margin-top: 22px;
  padding: 13px 20px;
  border: 0;
  border-radius: 10px;
  background: #2f6b3c;
  color: #fff;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.bs-calc__button:hover {
  filter: brightness(0.96);
}

.bs-calc__result {
  display: none;
  margin-top: 22px;
  padding: 22px;
  border-left: 5px solid #5b9362;
  border-radius: 12px;
  background: #eef8ef;
}

.bs-calc__result.is-visible {
  display: block;
}

.bs-calc__result-title {
  margin-bottom: 10px;
  font-size: 1.15rem;
  font-weight: 800;
  color: #173f26;
}

.bs-calc__result p {
  margin: 8px 0;
}

.bs-calc__result ul {
  margin: 10px 0 0 20px;
}

.bs-calc__note {
  margin-top: 20px;
  padding: 16px 18px;
  border-radius: 12px;
  background: #fff8e7;
  border-left: 5px solid #d7a730;
  font-size: 0.95rem;
}

.bs-calc__badge {
  display: inline-block;
  margin: 3px 6px 3px 0;
  padding: 5px 9px;
  border-radius: 999px;
  background: #e3efe5;
  color: #285336;
  font-size: 0.88rem;
  font-weight: 700;
}

@media (max-width: 680px) {
  .bs-calc {
    padding: 18px;
    border-radius: 14px;
  }

  .bs-calc__grid {
    grid-template-columns: 1fr;
  }

  .bs-calc__head {
    padding: 18px;
  }

  .bs-calc__button {
    width: 100%;
  }
}