/**
 * СТИЛИ ДЛЯ 3D БРЕНДИНГА
 */

/* Кнопка возврата */
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.back-btn:hover {
  transform: translateX(-5px);
}

.back-btn svg {
  transition: transform 0.3s ease;
}

.back-btn:hover svg {
  transform: translateX(-3px);
}

/* Секция 3D вьювера */
.viewer-3d-section {
  padding: 40px 0;
}

.viewer-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  margin-top: 30px;
}

/* Canvas контейнер */
.viewer-canvas {
  position: relative;
  width: 100%;
  height: 600px;
  background: linear-gradient(135deg, #e8e8e8 0%, #d8d8d8 100%);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.viewer-canvas canvas {
  display: block;
  width: 100%;
  height: 100%;
}

/* Placeholder для canvas */
.canvas-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-muted);
}

.canvas-placeholder svg {
  margin-bottom: 20px;
  opacity: 0.5;
}

/* Индикаторы загрузки */
.viewer-loader {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  z-index: 10;
}

.loader-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.circular-loader {
  width: 150px;
  height: 150px;
  transform: rotate(-90deg);
}

.loader-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.1);
  stroke-width: 8;
}

.loader-progress {
  fill: none;
  stroke: #2196F3;
  stroke-width: 8;
  stroke-linecap: round;
  stroke-dasharray: 283;
  stroke-dashoffset: 283;
  transition: stroke-dashoffset 0.3s ease;
}

.loader-percent {
  position: absolute;
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
  margin-top: 60px;
}

.loader-text {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.1rem;
  font-weight: 500;
  margin: 0;
}

.viewer-error {
  position: absolute;
  top: 20px;
  left: 20px;
  right: 20px;
  padding: 15px;
  background: rgba(239, 68, 68, 0.9);
  color: white;
  border-radius: 8px;
  text-align: center;
  z-index: 10;
}

/* Панель управления */
.viewer-controls {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 30px;
  height: fit-content;
  position: sticky;
  top: 100px;
}

.viewer-controls h3 {
  margin-top: 0;
  margin-bottom: 25px;
  font-size: 1.5rem;
  color: var(--text-primary);
}

/* Группы контролов */
.control-group {
  margin-bottom: 25px;
}

.control-group label {
  display: block;
  margin-bottom: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.control-group small {
  display: block;
  margin-top: 5px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Прелоадер загрузки логотипа */
.logo-loader {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 30px;
  background: var(--background-secondary);
  border-radius: 12px;
  margin-top: 20px;
}

.logo-loader .spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 15px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.logo-loader p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Кнопки выбора детали */
.part-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 10px;
}

.part-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 20px 12px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: all 0.3s ease;
}

.part-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.3);
}

.part-btn svg {
  opacity: 0.8;
}

/* Кнопки переключения детали в контролах */
.part-switch-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 16px 10px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.3s ease;
  border: 2px solid var(--border-color);
}

.part-switch-btn.active {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.part-switch-btn:not(.active):hover {
  background: rgba(37, 99, 235, 0.1);
  border-color: var(--primary-color);
  transform: translateY(-2px);
}

.part-switch-btn svg {
  opacity: 0.8;
}

/* Кнопки стрелок для позиционирования */
.position-arrows {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 15px;
  background: var(--background-secondary);
  border-radius: 12px;
}

.arrows-row {
  display: flex;
  gap: 8px;
  justify-content: center;
}

.arrow-btn {
  width: 50px;
  height: 50px;
  background: var(--surface-color);
  border: 2px solid var(--border-color);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  color: var(--text-primary);
}

.arrow-btn:hover {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
  transform: scale(1.1);
}

.arrow-btn:active {
  transform: scale(0.95);
}

.arrow-btn svg {
  pointer-events: none;
}

/* Слайдеры */
.form-range {
  width: 100%;
  height: 6px;
  background: #e0e0e0;
  border-radius: 3px;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.form-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: #2563eb;
  border: 2px solid #ffffff;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  transition: all 0.2s ease;
}

.form-range::-webkit-slider-thumb:hover {
  background: #1d4ed8;
  transform: scale(1.1);
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.3);
}

.form-range::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: #2563eb;
  border: 2px solid #ffffff;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  transition: all 0.2s ease;
}

.form-range::-moz-range-thumb:hover {
  background: #1d4ed8;
  transform: scale(1.1);
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.3);
}

/* Кнопки */
.btn-block {
  width: 100%;
  padding: 14px;
  font-size: 1rem;
  font-weight: 600;
}

.btn-success {
  background: #10b981;
  color: white;
  border: 2px solid #10b981;
}

.btn-success:hover {
  background: #059669;
  border-color: #059669;
}

/* Секция инструкций */
.instructions-section {
  padding: 60px 0;
  background: var(--background-secondary);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.step-card {
  background: var(--surface-color);
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  border: 1px solid var(--border-color);
}

.step-number {
  width: 50px;
  height: 50px;
  background: var(--primary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto 20px;
}

.step-card h3 {
  margin: 0 0 15px;
  font-size: 1.25rem;
  color: var(--text-primary);
}

.step-card p {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Адаптивность */
@media (max-width: 992px) {
  .viewer-layout {
    grid-template-columns: 1fr;
  }
  
  .viewer-canvas {
    height: 500px;
  }
  
  .viewer-controls {
    position: relative;
    top: 0;
  }
}

@media (max-width: 768px) {
  .viewer-canvas {
    height: 400px;
  }
  
  .position-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }
  
  .steps-grid {
    grid-template-columns: 1fr;
  }
}

/* Модальное окно быстрого заказа */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  padding: 20px;
}

.modal-dialog {
  width: 100%;
  max-width: 500px;
  animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-content {
  background: var(--card-bg);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
  margin: 0;
  font-size: 1.5rem;
  color: var(--text-primary);
}

.modal-close {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  transition: all 0.2s ease;
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  color: var(--text-primary);
  transform: rotate(90deg);
}

.modal-body {
  padding: 24px;
  position: relative;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  font-size: 1rem;
  transition: all 0.3s ease;
  background: var(--card-bg);
  color: var(--text-primary);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.1);
}

.form-control.error {
  border-color: var(--error);
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.checkbox-label input[type="checkbox"] {
  margin-top: 3px;
  cursor: pointer;
}

.checkbox-label a {
  color: var(--accent-blue);
  text-decoration: underline;
}

.form-loader {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.95);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.form-loader .spinner {
  width: 50px;
  height: 50px;
  border: 4px solid var(--border-color);
  border-top-color: var(--accent-blue);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 15px;
}

.form-loader p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 1rem;
}

@media (max-width: 768px) {
  .modal-dialog {
    max-width: 100%;
  }
  
  .modal-header,
  .modal-body {
    padding: 20px;
  }
}