.preview-form {
  max-width: 800px;
  margin: 0 auto;
}


.device-section {
  margin-bottom: var(--spacing-2xl);
}

.device-tabs {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
  justify-content: center;
}

.device-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-md) var(--spacing-lg);
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-base);
  min-width: 120px;
}

.device-tab:hover {
  color: var(--color-text-primary);
  border-color: var(--color-border-hover);
  transform: translateY(-2px);
}

.device-tab.active {
  color: #ffffff;
  background: var(--color-solid-primary);
  border-color: transparent;
}

.device-icon {
  font-size: 1.5rem;
}

.device-name {
  font-size: 0.875rem;
  font-weight: 600;
}

.device-size {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.device-tab.active .device-size {
  color: rgba(255, 255, 255, 0.8);
}

.custom-size-panel {
  background: var(--color-solid-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-top: var(--spacing-md);
}

.custom-size-panel.hidden {
  display: none;
}

.custom-size-inputs {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-end;
  flex-wrap: wrap;
}

.size-input-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.size-input-group label {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  font-family: var(--font-display);
}

.size-input {
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  color: var(--color-text-primary);
  background: var(--color-bg-secondary);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: var(--transition-base);
  width: 120px;
}

.size-input:focus {
  border-color: #1a1a1a;
  box-shadow: none;
}

.apply-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 500;
  color: #ffffff;
  background: var(--color-solid-primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-base);
  height: fit-content;
}

.apply-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.preview-actions {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.device-frame {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.device-screen {
  position: relative;
  background: #000;
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  transition: var(--transition-base);
}

.device-screen::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 30px;
  background: rgba(0, 0, 0, 0.3);
  z-index: 1;
  pointer-events: none;
}

#previewFrame {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
  background: #fff;
}

.preview-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.current-url {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  word-break: break-all;
  flex: 1;
  min-width: 200px;
}

.current-size {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  font-weight: 500;
  white-space: nowrap;
}

.comparison-section {
  margin-bottom: var(--spacing-2xl);
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.comparison-item {
  background: var(--color-solid-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  transition: var(--transition-base);
}

.comparison-item:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.comparison-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.comparison-device-name {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.comparison-device-size {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.comparison-frame {
  position: relative;
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 9 / 16;
  margin-bottom: var(--spacing-sm);
}

.comparison-frame.desktop {
  aspect-ratio: 16 / 9;
}

.comparison-frame.tablet {
  aspect-ratio: 4 / 3;
}

.comparison-iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
  background: #fff;
}

@media (max-width: 768px) {
  .input-wrapper {
    flex-direction: column;
  }

  .preview-btn {
    width: 100%;
  }

  .device-tabs {
    grid-template-columns: repeat(2, 1fr);
  }

  .device-tab {
    min-width: auto;
    flex: 1;
  }

  .preview-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .preview-actions {
    width: 100%;
  }

  .action-btn {
    flex: 1;
    justify-content: center;
  }

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

@media (max-width: 480px) {
  .custom-size-inputs {
    flex-direction: column;
  }

  .size-input {
    width: 100%;
  }

  .apply-btn {
    width: 100%;
  }
}