/* ═══════════════════════════════════════════════════════════════
   M78Calc — стили калькулятора веса и стоимости
   ═══════════════════════════════════════════════════════════════ */

/* ── Кнопка-триггер ── */
.m78-calc-trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: #44558f;
  color: #fff;
  border-radius: 6px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 500;
  transition: background 0.2s, transform 0.1s;
  margin: 16px 0;
}

.m78-calc-trigger:hover {
  background: #3a4a7a;
  transform: translateY(-1px);
}

.m78-calc-trigger:active {
  transform: translateY(0);
}

.m78-calc-trigger__icon {
  font-size: 20px;
}

/* ── Оверлей ── */
.m78-calc-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 999999;
  justify-content: center;
  align-items: center;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.3s;
}

.m78-calc-overlay--visible {
  display: flex;
  opacity: 1;
}

/* ── Модальное окно ── */
.m78-calc-modal {
  background: #fff;
  border-radius: 12px;
  max-width: 520px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  position: relative;
  animation: m78-calc-slide-in 0.3s ease;
}

@keyframes m78-calc-slide-in {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.m78-calc-modal__close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: none;
  border: none;
  font-size: 28px;
  color: #999;
  cursor: pointer;
  line-height: 1;
  padding: 4px;
  transition: color 0.2s;
}

.m78-calc-modal__close:hover {
  color: #333;
}

/* ── Шапка ── */
.m78-calc-modal__header {
  padding: 24px 24px 16px;
  border-bottom: 1px solid #eee;
}

.m78-calc-modal__title {
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 600;
  color: #2c3e50;
}

.m78-calc-modal__product-name {
  font-size: 14px;
  color: #607080;
}

/* ── Тело ── */
.m78-calc-modal__body {
  padding: 20px 24px;
}

/* ── Поля формы ── */
.m78-calc-field {
  margin-bottom: 16px;
}

.m78-calc-field__label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: #506070;
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.m78-calc-field__select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 15px;
  color: #333;
  background: #fff;
  transition: border-color 0.2s;
}

.m78-calc-field__select:focus {
  border-color: #44558f;
  outline: none;
  box-shadow: 0 0 0 3px rgba(68, 85, 143, 0.15);
}

.m78-calc-field__input {
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 15px;
  color: #333;
  transition: border-color 0.2s;
}

.m78-calc-field__input:focus {
  border-color: #44558f;
  outline: none;
  box-shadow: 0 0 0 3px rgba(68, 85, 143, 0.15);
}

.m78-calc-field__input--hidden {
  display: none;
}

/* ── Группа длины ── */
.m78-calc-field__length-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.m78-calc-field__length-group .m78-calc-field__select {
  flex: 1;
  min-width: 180px;
}

.m78-calc-field__length-group .m78-calc-field__input {
  width: 120px;
}

/* ── Группа количества ── */
.m78-calc-field__qty-group {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.m78-calc-field__qty-btn {
  width: 36px;
  height: 36px;
  border: 1px solid #ddd;
  border-radius: 6px;
  background: #f8f9fa;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, border-color 0.2s;
}

.m78-calc-field__qty-btn:hover {
  background: #e9ecef;
  border-color: #44558f;
}

.m78-calc-field__input--qty {
  width: 80px;
  text-align: center;
  font-weight: 600;
}

.m78-calc-field__qty-label {
  font-size: 14px;
  color: #607080;
  margin-left: 4px;
}

/* ── Группа площади ── */
.m78-calc-field__area-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.m78-calc-field__area-group .m78-calc-field__input {
  flex: 1;
  min-width: 100px;
}

.m78-calc-field__area-sep {
  font-size: 18px;
  color: #999;
}

/* ── Результаты ── */
.m78-calc-results {
  margin-top: 8px;
}

.m78-calc-results__divider {
  height: 1px;
  background: #eee;
  margin: 12px 0;
}

.m78-calc-result {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
}

.m78-calc-result__label {
  font-size: 14px;
  color: #607080;
}

.m78-calc-result__value {
  font-size: 15px;
  font-weight: 600;
  color: #2c3e50;
}

.m78-calc-result__value--big {
  font-size: 18px;
  color: #44558f;
}

.m78-calc-result--total {
  padding: 10px 0;
}

.m78-calc-result__value--total {
  font-size: 20px;
  color: #e67e22;
}

.m78-calc-result--grand {
  background: #f0f7ff;
  margin: 12px -24px 0;
  padding: 12px 24px;
  border-top: 2px solid #44558f;
}

.m78-calc-result__value--grand {
  font-size: 22px;
  color: #44558f;
}

/* ── Доставка ── */
.m78-calc-delivery {
  margin-top: 16px;
}

/* ── Примечание ── */
.m78-calc-note {
  margin-top: 16px;
  padding: 12px;
  background: #fff8e1;
  border-radius: 6px;
  font-size: 13px;
  color: #795548;
  line-height: 1.4;
}

/* ── Кнопки действий ── */
.m78-calc-actions {
  padding: 16px 24px 24px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.m78-calc-btn {
  flex: 1;
  min-width: 160px;
  padding: 14px 20px;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}

.m78-calc-btn:active {
  transform: scale(0.98);
}

.m78-calc-btn--cart {
  background: #44558f;
  color: #fff;
}

.m78-calc-btn--cart:hover {
  background: #3a4a7a;
}

.m78-calc-btn--request {
  background: #e67e22;
  color: #fff;
}

.m78-calc-btn--request:hover {
  background: #d35400;
}

/* ── Всплывающее сообщение ── */
.m78-calc-popup {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: 16px 24px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  z-index: 9999999;
  transform: translateX(120%);
  transition: transform 0.3s ease;
  max-width: 400px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.m78-calc-popup--visible {
  transform: translateX(0);
}

.m78-calc-popup--success {
  background: #27ae60;
  color: #fff;
}

.m78-calc-popup--error {
  background: #e74c3c;
  color: #fff;
}

/* ── Адаптивность ── */
@media (max-width: 600px) {
  .m78-calc-modal {
    max-height: 95vh;
    border-radius: 12px 12px 0 0;
    margin-top: auto;
  }

  .m78-calc-overlay {
    align-items: flex-end;
    padding: 0;
  }

  .m78-calc-modal__header {
    padding: 20px 16px 12px;
  }

  .m78-calc-modal__body {
    padding: 16px;
  }

  .m78-calc-actions {
    padding: 12px 16px 20px;
    flex-direction: column;
  }

  .m78-calc-btn {
    min-width: auto;
  }

  .m78-calc-field__length-group {
    flex-direction: column;
  }

  .m78-calc-field__length-group .m78-calc-field__input {
    width: 100%;
  }

  .m78-calc-result--grand {
    margin: 12px -16px 0;
    padding: 12px 16px;
  }
}