/* ============================================================
   Транспортный налог — калькулятор
   Дизайн: бирюзово-синяя гамма, карточки, современная типографика
   ============================================================ */

:root {
  --tt-teal: #0f9d8f;
  --tt-teal-dark: #0b7f74;
  --tt-teal-deep: #0a5f58;
  --tt-teal-light: #e4f7f4;
  --tt-blue: #2f7fe0;
  --tt-blue-dark: #1f5fb8;
  --tt-gradient: linear-gradient(135deg, #0f9d8f 0%, #2f7fe0 100%);
  --tt-text: #1f2937;
  --tt-muted: #6b7280;
  --tt-border: #d9e6ea;
  --tt-bg-soft: #f6fbfa;
  --tt-radius: 16px;
  --tt-shadow: 0 10px 30px rgba(15, 94, 88, 0.10);
}

/* ---------- Раскладка ---------- */
.calculator-layout {
  display: flex;
  gap: 32px;
  padding: 24px 20px 40px;
  max-width: 1080px;
  margin: 0 auto;
  align-items: flex-start;
}

/* ---------- Карточка формы ---------- */
.calc-block {
  flex: 1 1 520px;
  max-width: 560px;
  background: #ffffff;
  border-radius: var(--tt-radius);
  padding: 30px 32px 34px;
  border-top: 4px solid var(--tt-teal);
  box-shadow: var(--tt-shadow);
}

.calc-block h1 {
  margin: 0 0 22px;
  padding-bottom: 16px;
  border-bottom: 2px solid #eef3f5;
  font-size: 1.55rem;
  line-height: 1.3;
  color: var(--tt-text);
  font-weight: 700;
}

.calc-block label {
  display: block;
  margin-top: 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--tt-text);
}

.calc-block input,
.calc-block select {
  width: 100%;
  padding: 12px 14px;
  margin-top: 7px;
  box-sizing: border-box;
  font-size: 16px;
  color: var(--tt-text);
  background: var(--tt-bg-soft);
  border: 1.5px solid var(--tt-border);
  border-radius: 10px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  appearance: none;
  -webkit-appearance: none;
}

.calc-block input:hover,
.calc-block select:hover {
  border-color: #9fc7c2;
}

.calc-block input:focus,
.calc-block select:focus {
  border-color: var(--tt-teal);
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(15, 157, 143, 0.14);
}

.calc-block input::placeholder {
  color: #a3adb6;
}

/* Выпадающий список: собственная стрелка */
.calc-block select {
  background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%230f9d8f' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
  cursor: pointer;
}

.field-hint {
  margin: 6px 0 0;
  font-size: 12px;
  line-height: 1.45;
  color: var(--tt-muted);
}

/* ---------- Кнопка ---------- */
.calc-block button {
  width: 100%;
  margin-top: 26px;
  padding: 14px 20px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.3px;
  color: #ffffff;
  background: var(--tt-gradient);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(15, 157, 143, 0.28);
  transition: transform 0.15s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.calc-block button:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(15, 157, 143, 0.35);
  filter: brightness(1.04);
}

.calc-block button:active {
  transform: translateY(0);
  box-shadow: 0 6px 14px rgba(15, 157, 143, 0.25);
}

/* ---------- Блок результатов ---------- */
.calculator-right {
  flex: 1 1 380px;
  max-width: 440px;
}

.result-block {
  background: #ffffff;
  padding: 28px;
  border-radius: var(--tt-radius);
  border-top: 5px solid var(--tt-teal);
  box-shadow: var(--tt-shadow);
  position: sticky;
  top: 20px;
}

.result-block h2 {
  margin: 0 0 18px;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--tt-text);
}

.tax-result {
  font-size: 2.1rem;
  font-weight: 800;
  line-height: 1.15;
  color: var(--tt-teal-dark);
  word-break: break-word;
}

.tax-caption {
  margin: 6px 0 16px;
  font-size: 13px;
  color: var(--tt-muted);
}

.breakdown {
  background: var(--tt-bg-soft);
  border: 1px solid #e2efed;
  border-radius: 12px;
  padding: 14px 16px;
  margin-top: 6px;
}

.breakdown-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 7px 0;
  font-size: 14px;
  color: var(--tt-text);
  border-bottom: 1px dashed #d3e4e1;
}

.breakdown-row:last-child {
  border-bottom: none;
}

.breakdown-row span {
  color: var(--tt-muted);
}

.breakdown-row strong {
  font-weight: 600;
  color: var(--tt-text);
  text-align: right;
}

.breakdown-row.breakdown-total {
  margin-top: 6px;
  padding-top: 12px;
  border-top: 2px solid var(--tt-teal);
  border-bottom: none;
  font-size: 16px;
  font-weight: 700;
}

.breakdown-row.breakdown-total span,
.breakdown-row.breakdown-total strong {
  color: var(--tt-teal-dark);
}

.formula-note {
  margin: 14px 0 0;
  font-size: 12px;
  line-height: 1.5;
  color: var(--tt-muted);
  background: #f0f6f5;
  border-radius: 8px;
  padding: 10px 12px;
}

.result-output .error-msg {
  color: #c2413a;
  font-size: 14px;
  line-height: 1.5;
  background: #fdf0ef;
  border: 1px solid #f5cdca;
  border-radius: 10px;
  padding: 12px 14px;
}

/* ---------- SEO-описание ---------- */
.calculator-description {
  max-width: 860px;
  margin: 0 auto 40px;
  padding: 32px 36px;
  background: #ffffff;
  border-top: 5px solid var(--tt-teal);
  border-radius: var(--tt-radius);
  box-shadow: 0 6px 20px rgba(15, 94, 88, 0.07);
  font-family: inherit;
  line-height: 1.7;
  color: var(--tt-text);
}

.calculator-description h2 {
  margin-top: 0;
  font-size: 1.35rem;
  color: var(--tt-teal-deep);
}

.calculator-description h3 {
  margin: 22px 0 8px;
  font-size: 1.05rem;
  color: var(--tt-blue-dark);
}

.calculator-description p {
  margin: 8px 0;
}

/* ---------- Адаптивность ---------- */
@media (max-width: 860px) {
  .calculator-layout {
    flex-direction: column;
    padding: 20px 16px 32px;
  }

  .calc-block,
  .calculator-right {
    max-width: 100%;
    width: 100%;
  }

  .calc-block {
    padding: 24px 20px 28px;
  }

  .result-block {
    position: static;
  }

  .calculator-description {
    margin: 0 16px 32px;
    padding: 24px 20px;
  }
}

@media (max-width: 480px) {
  .tax-result {
    font-size: 1.7rem;
  }

  .breakdown-row {
    font-size: 13px;
  }
}