.lsp-calculator {
  --lsp-orange:      #f08702;
  --lsp-orange-dark: #c96200;
  --lsp-orange-light:#ff9a1a;
  --lsp-text:        #1f2937;
  --lsp-muted:       #6b7280;
  --lsp-border:      #e5e7eb;
  --lsp-bg:          #ffffff;
  --lsp-bg-soft:     #fafafa;
  --lsp-error:       #dc2626;

  font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--lsp-text);
  max-width: 1080px;
  margin: 0 auto;
  padding: 24px;
  background: var(--lsp-bg);
  box-sizing: border-box;
}

.lsp-calculator__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: start;
}

@media (min-width: 900px) {
  .lsp-calculator__layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 32px;
  }
}

.lsp-calculator__col { min-width: 0; }

.lsp-calculator *,
.lsp-calculator *::before,
.lsp-calculator *::after {
  box-sizing: border-box;
}

.lsp-calculator__title {
  font-size: 28px;
  font-weight: 700;
  color: var(--lsp-orange-dark);
  margin: 0 0 8px;
  line-height: 1.2;
}

.lsp-calculator__intro {
  font-size: 15px;
  color: var(--lsp-muted);
  margin: 0 0 24px;
  line-height: 1.5;
}

.lsp-calculator__form {
  background: var(--lsp-bg);
  border: 1px solid var(--lsp-border);
  border-radius: 10px;
  padding: 24px;
}

.lsp-field {
  margin-bottom: 18px;
}

.lsp-field label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--lsp-text);
  margin-bottom: 6px;
}

.lsp-field input,
.lsp-field select {
  width: 100%;
  height: 44px;
  padding: 0 12px;
  font-family: inherit;
  font-size: 15px;
  color: var(--lsp-text);
  background: var(--lsp-bg);
  border: 1px solid var(--lsp-border);
  border-radius: 6px;
  transition: border-color 0.15s, box-shadow 0.15s;
  -webkit-appearance: none;
  appearance: none;
}

.lsp-field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%236b7280' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.lsp-field input:focus,
.lsp-field select:focus {
  outline: none;
  border-color: var(--lsp-orange);
  box-shadow: 0 0 0 2px rgba(240, 135, 2, 0.25);
}

.lsp-field input.is-invalid,
.lsp-field select.is-invalid {
  border-color: var(--lsp-error);
}

.lsp-field__help {
  display: block;
  font-size: 12px;
  color: var(--lsp-muted);
  margin-top: 4px;
}

.lsp-field__error {
  display: none;
  font-size: 12px;
  color: var(--lsp-error);
  margin-top: 4px;
}

.lsp-field__error.is-visible {
  display: block;
}

.lsp-button {
  width: 100%;
  height: 48px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #ffffff;
  background: var(--lsp-orange);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s, transform 0.05s;
}

.lsp-button:hover { background: var(--lsp-orange-dark); }
.lsp-button:active { transform: translateY(1px); }
.lsp-button:focus { outline: none; box-shadow: 0 0 0 3px rgba(240, 135, 2, 0.35); }

.lsp-result {
  margin-bottom: 16px;
  opacity: 0;
  transition: opacity 0.35s ease;
}

.lsp-result[hidden] { display: none; }
.lsp-result.is-visible { opacity: 1; }

.lsp-result__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 640px) and (max-width: 899px) {
  .lsp-result__grid { grid-template-columns: 1fr 1fr; }
}

.lsp-result__card {
  background: var(--lsp-bg-soft);
  border: 1px solid var(--lsp-border);
  border-left: 4px solid var(--lsp-orange);
  border-radius: 8px;
  padding: 20px;
}

.lsp-result__label {
  font-size: 13px;
  font-weight: 500;
  color: var(--lsp-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.lsp-result__value {
  font-size: 40px;
  font-weight: 700;
  color: var(--lsp-orange);
  line-height: 1.1;
  margin-bottom: 12px;
  word-break: break-word;
}

.lsp-result__note {
  font-size: 13px;
  color: var(--lsp-muted);
  line-height: 1.5;
}

.lsp-disclaimer {
  background: var(--lsp-bg-soft);
  border: 1px solid var(--lsp-border);
  border-radius: 8px;
  padding: 16px 20px;
  font-size: 13px;
  color: var(--lsp-muted);
  line-height: 1.6;
}

.lsp-disclaimer p { margin: 0 0 8px; }
.lsp-disclaimer p + p { margin-top: 12px; }
.lsp-disclaimer ul { margin: 0 0 8px; padding-left: 20px; }
.lsp-disclaimer li { margin-bottom: 4px; }
.lsp-disclaimer strong { color: var(--lsp-text); }