.marine-configurator-wrapper {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  align-items: start;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.25,0.46,0.45,0.94),
              transform 0.6s cubic-bezier(0.25,0.46,0.45,0.94);
}

.marine-configurator-wrapper.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.configurator-steps {
  display: flex;
  flex-direction: column;
  gap: 56px;
}

.config-step {
  display: flex;
  flex-direction: column;
  gap: 24px;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.25,0.46,0.45,0.94),
              transform 0.6s cubic-bezier(0.25,0.46,0.45,0.94);
}

.marine-configurator-wrapper.is-visible .config-step:nth-child(1) { animation-delay: 0.1s; }
.marine-configurator-wrapper.is-visible .config-step:nth-child(2) { animation-delay: 0.2s; }
.marine-configurator-wrapper.is-visible .config-step:nth-child(3) { animation-delay: 0.3s; }
.marine-configurator-wrapper.is-visible .config-step:nth-child(4) { animation-delay: 0.4s; }

.marine-configurator-wrapper.is-visible .config-step {
  animation: fadeUp 0.6s cubic-bezier(0.25,0.46,0.45,0.94) forwards;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.step-header {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.step-number {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 11px;
  color: #1E42A3;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.step-title {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 24px;
  color: #1A1F2E;
  margin: 0;
}

.step-description {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  font-size: 14px;
  color: #6B748A;
  margin: 0;
}

.options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.config-option {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  border-radius: 16px;
  padding: 24px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 44px;
}

.config-option:hover {
  border-color: #1E42A3;
  background: rgba(30, 66, 163, 0.04);
  box-shadow: 0 0 0 2px rgba(30, 66, 163, 0.15);
  transform: translateY(-4px);
}

.config-option:focus {
  outline: 2px solid #1E42A3;
  outline-offset: 2px;
}

.config-option.selected {
  border-color: #1E42A3;
  background: rgba(30, 66, 163, 0.04);
  box-shadow: 0 0 0 2px rgba(30, 66, 163, 0.15);
  animation: cardSelect 0.3s cubic-bezier(0.25,0.46,0.45,0.94);
}

@keyframes cardSelect {
  0% { transform: scale(1); }
  50% { transform: scale(1.03); box-shadow: 0 4px 16px rgba(30, 66, 163, 0.25); }
  100% { transform: scale(1); }
}

.option-title {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 18px;
  color: #1A1F2E;
  margin: 0;
}

.option-description {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  font-size: 13px;
  color: #6B748A;
  margin: 0;
}

.option-price {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  font-size: 16px;
  color: #1E42A3;
  margin-top: 4px;
}

.config-checkbox {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  border-radius: 12px;
  padding: 16px;
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 44px;
}

.config-checkbox:hover {
  border-color: #1E42A3;
  background: rgba(30, 66, 163, 0.04);
  transform: translateY(-2px);
}

.config-checkbox:focus {
  outline: 2px solid #1E42A3;
  outline-offset: 2px;
}

.config-checkbox.selected {
  border-color: #1E42A3;
  background: rgba(30, 66, 163, 0.04);
  animation: cardSelect 0.3s cubic-bezier(0.25,0.46,0.45,0.94);
}

.checkbox-input {
  width: 20px;
  height: 20px;
  border: 2px solid #E2E8F0;
  border-radius: 4px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.config-checkbox.selected .checkbox-input {
  background: #1E42A3;
  border-color: #1E42A3;
}

.config-checkbox.selected .checkbox-input::after {
  content: '✓';
  color: #FFFFFF;
  font-size: 14px;
  font-weight: 700;
}

.checkbox-label {
  flex: 1;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.checkbox-title {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 15px;
  color: #1A1F2E;
}

.checkbox-price {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  font-size: 16px;
  color: #1E42A3;
}

.configurator-summary {
  position: sticky;
  top: 100px;
  align-self: start;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
}

.summary-card {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.summary-card.results-summary-card {
  scroll-margin-top: 100px;
}

.summary-title {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 20px;
  color: #1A1F2E;
  margin: 0;
  padding-bottom: 16px;
  border-bottom: 1px solid #E2E8F0;
}

.summary-model {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 14px;
  color: #6B748A;
  margin: 0;
}

.summary-total {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 800;
  font-size: 48px;
  color: #1A1F2E;
  margin: 8px 0 0 0;
  line-height: 1;
}

.summary-note {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  font-size: 12px;
  color: #6B748A;
  margin: 0;
}

.summary-savings {
  background: rgba(30, 66, 163, 0.08);
  border-radius: 8px;
  padding: 12px 16px;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 13px;
  color: #1E42A3;
  text-align: center;
}

.summary-details {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px 0;
  border-top: 1px solid #E2E8F0;
  border-bottom: 1px solid #E2E8F0;
}

.summary-line {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
}

.summary-line-label {
  color: #6B748A;
  font-weight: 500;
}

.summary-line-value {
  color: #1A1F2E;
  font-weight: 600;
}

.reserve-button {
  width: 100%;
  background: #1E42A3;
  color: #FFFFFF;
  border: none;
  border-radius: 8px;
  padding: 16px 32px;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 44px;
}

.reserve-button:hover {
  background: #16327E;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(30, 66, 163, 0.3);
}

.reserve-button:focus {
  outline: 2px solid #1E42A3;
  outline-offset: 2px;
}

.return-to-build-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  width: 100%;
  background: #1E42A3;
  color: #FFFFFF;
  padding: 16px 20px;
  display: none;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  cursor: pointer;
  z-index: 90;
  transform: translateY(100%);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  border: none;
  box-shadow: 0 -4px 16px rgba(0,0,0,0.12);
  min-height: 44px;
}

.return-to-build-bar.is-visible {
  transform: translateY(0);
  opacity: 1;
}

.return-to-build-bar:hover,
.return-to-build-bar:focus {
  background: #163580;
  outline: none;
}

@media (max-width: 767px) {
  .marine-configurator-wrapper {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .configurator-steps {
    order: 1;
  }

  .configurator-summary {
    order: 2;
    position: relative;
    top: auto;
    max-height: none;
    overflow: visible;
  }

  .return-to-build-bar {
    display: flex;
  }

  .options-grid {
    grid-template-columns: 1fr;
  }

  .summary-total {
    font-size: 36px;
  }
}

@media (min-width: 768px) and (max-width: 1024px) {
  .marine-configurator-wrapper {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .configurator-steps {
    order: 1;
  }

  .configurator-summary {
    order: 2;
    position: relative;
    top: auto;
    max-height: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .marine-configurator-wrapper,
  .config-step,
  .config-option,
  .config-checkbox,
  .reserve-button,
  .return-to-build-bar {
    animation: none !important;
    transition: none !important;
  }
}