.ae-margin-calculator {
  max-width: 780px;
  margin: 30px auto;
  overflow: hidden;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  background: #ffffff;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.ae-margin-calculator__header {
  background: linear-gradient(135deg, #1e3a8a, #2563eb);
  padding: 22px;
  color: #ffffff;
}

.ae-margin-calculator__title {
  margin: 0 0 8px;
  color: #ffffff;
  font-size: 1.25rem;
  font-weight: 700;
}

.ae-margin-calculator__subtitle {
  margin: 0;
  color: #dbeafe;
  font-size: 0.92rem;
  line-height: 1.5;
}

.ae-margin-calculator__body {
  padding: 24px;
}

.ae-margin-calculator__notice {
  margin-bottom: 22px;
  border: 1px solid #bfdbfe;
  border-radius: 8px;
  background: #eff6ff;
  padding: 12px 14px;
  color: #1e3a8a;
  font-size: 0.88rem;
  line-height: 1.5;
}

.ae-margin-calculator__section-title {
  margin-top: 0;
  margin-bottom: 12px;
  border-bottom: 2px solid #eff6ff;
  padding-bottom: 6px;
  color: #1e40af;
  font-size: 1.05rem;
}

.ae-margin-calculator__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.ae-margin-calculator__field label,
.ae-margin-calculator__optional label {
  display: block;
  margin-bottom: 4px;
  color: #475569;
  font-size: 0.85rem;
  font-weight: 600;
}

.ae-margin-calculator__field input,
.ae-margin-calculator__optional input {
  box-sizing: border-box;
  width: 100%;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  background: #ffffff;
  padding: 10px;
  color: #0f172a;
  font-size: 1rem;
}

.ae-margin-calculator__field input:focus,
.ae-margin-calculator__optional input:focus {
  outline: none;
  border-color: #2563eb;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.14);
}

.ae-margin-calculator__input--goal {
  border-color: #86efac;
  background: #f0fdf4;
}

.ae-margin-calculator__hint {
  cursor: help;
  border-bottom: 1px dotted #94a3b8;
}

.ae-margin-calculator__optional {
  margin-bottom: 24px;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  background: #f8fafc;
  padding: 16px;
}

.ae-margin-calculator__optional span {
  display: block;
  margin-top: 4px;
  color: #64748b;
  font-size: 0.8rem;
}

.ae-margin-calculator__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.ae-margin-calculator__button {
  border-radius: 8px;
  padding: 12px 20px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.ae-margin-calculator__button:hover,
.ae-margin-calculator__button:focus-visible {
  transform: translateY(-1px);
}

.ae-margin-calculator__button:focus-visible {
  outline: 2px solid #2563eb;
  outline-offset: 2px;
}

.ae-margin-calculator__button--primary {
  flex: 1;
  min-width: 220px;
  border: none;
  background: #2563eb;
  color: #ffffff;
}

.ae-margin-calculator__button--secondary {
  border: 1px solid #cbd5e1;
  background: #ffffff;
  color: #475569;
}

.ae-margin-calculator__cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.ae-margin-calculator__card {
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  background: #f8fafc;
  padding: 14px;
}

.ae-margin-calculator__card--warning {
  border-color: #fdba74;
  background: #fff7ed;
}

.ae-margin-calculator__card-label {
  margin-bottom: 4px;
  color: #64748b;
  font-size: 0.78rem;
}

.ae-margin-calculator__card-value {
  color: #0f172a;
  font-size: 1.2rem;
  font-weight: 800;
}

.ae-margin-calculator__card-value--warning {
  color: #9a3412;
}

.ae-margin-calculator__suggested {
  margin-bottom: 14px;
  border: 2px solid #22c55e;
  border-radius: 12px;
  background: #f0fdf4;
  padding: 20px;
}

.ae-margin-calculator__suggested h4,
.ae-margin-calculator__current h4 {
  margin: 0 0 12px;
  text-align: center;
  font-size: 1rem;
}

.ae-margin-calculator__suggested h4 {
  margin-bottom: 14px;
  color: #166534;
  font-size: 1.08rem;
}

.ae-margin-calculator__suggested-price {
  color: #16a34a;
  text-align: center;
  font-size: 2rem;
  line-height: 1.1;
  font-weight: 900;
}

.ae-margin-calculator__suggested-profit,
.ae-margin-calculator__suggested-detail,
.ae-margin-calculator__current-profit,
.ae-margin-calculator__current-state {
  text-align: center;
}

.ae-margin-calculator__suggested-profit {
  margin-top: 6px;
  color: #166534;
  font-size: 0.92rem;
}

.ae-margin-calculator__suggested-detail {
  margin-top: 6px;
  color: #15803d;
  font-size: 0.82rem;
}

.ae-margin-calculator__current {
  margin-bottom: 14px;
  border: 1px solid #cbd5e1;
  border-radius: 12px;
  background: #f8fafc;
  padding: 18px;
}

.ae-margin-calculator__current h4 {
  color: #0f172a;
}

.ae-margin-calculator__current-margin {
  color: #0f172a;
  text-align: center;
  font-size: 1.5rem;
  font-weight: 900;
}

.ae-margin-calculator__current-profit {
  margin-top: 4px;
  color: #475569;
  font-size: 0.9rem;
}

.ae-margin-calculator__current-state {
  margin-top: 8px;
  font-size: 0.85rem;
  font-weight: 700;
}

.ae-margin-calculator__current-margin.is-negative,
.ae-margin-calculator__current-state.is-negative {
  color: #dc2626;
}

.ae-margin-calculator__current-margin.is-warning,
.ae-margin-calculator__current-state.is-warning {
  color: #d97706;
}

.ae-margin-calculator__current-margin.is-positive,
.ae-margin-calculator__current-state.is-positive {
  color: #15803d;
}

.ae-margin-calculator__alert {
  border: 1px solid #f87171;
  border-radius: 8px;
  background: #fef2f2;
  padding: 12px;
  color: #991b1b;
  text-align: center;
  font-size: 0.85rem;
  font-weight: 700;
}

.ae-margin-calculator__results[hidden],
.ae-margin-calculator__current[hidden],
.ae-margin-calculator__alert[hidden] {
  display: none;
}

@media (max-width: 640px) {
  .ae-margin-calculator__body {
    padding: 18px;
  }

  .ae-margin-calculator__button--primary,
  .ae-margin-calculator__button--secondary {
    width: 100%;
  }

  .ae-margin-calculator__suggested-price {
    font-size: 1.7rem;
  }
}