.broots-calc {
  --bc-bg: #FAF0E6;
  --bc-card: #1B4D3E;
  --bc-accent: #E96FAA;
  --bc-accent-hover: #c8568d;
  --bc-text-light: #FFFFFF;
  --bc-input-bg: #EAF0EF;
  --bc-input-focus: #5B9BD5;
  --bc-logo: #1C2B1E;

  box-sizing: border-box;
  max-width: 420px;
  margin: 0 auto;
  padding: 24px;
  background: var(--bc-card);
  color: var(--bc-text-light);
  border-radius: 14px;
  font-family: inherit;
  line-height: 1.4;
}

.broots-calc *,
.broots-calc *::before,
.broots-calc *::after {
  box-sizing: border-box;
}

.broots-calc [hidden] {
  display: none !important;
}

.broots-calc__title {
  margin: 0 0 16px;
  font-size: 22px;
  font-weight: 700;
  color: var(--bc-text-light);
  text-align: center;
}

.broots-calc__label {
  display: block;
  margin: 14px 0 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--bc-text-light);
}

.broots-calc__input,
.broots-calc__select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: var(--bc-input-bg);
  color: var(--bc-logo);
  font-size: 15px;
  outline: none;
  transition: border-color 0.15s ease;
}

.broots-calc__input:focus,
.broots-calc__select:focus {
  border-color: var(--bc-input-focus);
}

.broots-calc__button {
  display: block;
  width: 100%;
  margin-top: 20px;
  padding: 12px 16px;
  background: var(--bc-accent);
  color: var(--bc-text-light);
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s ease;
}

.broots-calc__button:hover,
.broots-calc__button:focus {
  background: var(--bc-accent-hover);
}

.broots-calc__resultado {
  margin-top: 18px;
  padding: 14px 16px;
  background: var(--bc-bg);
  color: var(--bc-logo);
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
}

.broots-calc__resultado strong {
  color: var(--bc-logo);
}

.broots-calc__resultado--error {
  background: #ffe3ec;
  color: #8a1f3d;
}

@media (max-width: 420px) {
  .broots-calc {
    padding: 18px;
    border-radius: 10px;
  }
  .broots-calc__title {
    font-size: 20px;
  }
}