/**
 * Email Signature Generator
 * Main stylesheet
 */

/* Base Styles */
:root {
  --mdc-theme-primary: #1a73e8;
  --mdc-theme-secondary: #4285f4;
  --mdc-theme-background: #ffffff;
  --mdc-theme-surface: #ffffff;
  --mdc-theme-error: #b00020;
  --mdc-theme-on-primary: #ffffff;
  --mdc-theme-on-secondary: #ffffff;
  --mdc-theme-on-surface: #000000;
  --mdc-theme-on-error: #ffffff;
  --mdc-typography-font-family: 'Roboto', sans-serif;
  
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  
  --border-radius: 4px;
  --box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.16), 0 2px 10px 0 rgba(0, 0, 0, 0.12);
}

body {
  margin: 0;
  padding: 0;
  background-color: #f5f5f5;
  color: rgba(0, 0, 0, 0.87);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.main-content {
  flex: 1;
  padding: var(--spacing-md) 0;
}

/* Header & Footer */
.mdc-top-app-bar {
  background-color: var(--mdc-theme-primary);
}

.app-footer {
  background-color: #f5f5f5;
  padding: var(--spacing-lg) 0;
  margin-top: var(--spacing-xl);
  border-top: 1px solid rgba(0, 0, 0, 0.12);
}

.footer-copyright {
  text-align: center;
  color: rgba(0, 0, 0, 0.6);
  margin: 0;
}

/* Form Elements */
.form-field {
  width: 100%;
  margin-bottom: var(--spacing-md);
}

/* Editor Layout */
.editor-sidebar {
  background-color: var(--mdc-theme-surface);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  overflow: hidden;
  margin-bottom: var(--spacing-lg);
}

.preview-container {
  background-color: var(--mdc-theme-surface);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.preview-frame {
  border: 1px solid rgba(0, 0, 0, 0.12);
  padding: var(--spacing-lg);
  margin: var(--spacing-md) 0;
  background-color: #ffffff;
  min-height: 200px;
}

/* Tab Panels */
.tab-content {
  padding: var(--spacing-lg);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

/* Template Selection */
/* Template Section Styling */
.template-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.template-item {
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: var(--border-radius);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
  position: relative;
  background-color: #ffffff;
  display: flex;
  flex-direction: column;
}

.template-item:hover {
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23);
  transform: translateY(-2px);
}

.template-item.selected {
  border-color: var(--mdc-theme-primary);
  box-shadow: 0 6px 10px rgba(0, 0, 0, 0.19), 0 3px 6px rgba(0, 0, 0, 0.23);
}

.template-item.selected::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 40px 40px 0;
  border-color: transparent var(--mdc-theme-primary) transparent transparent;
  z-index: 1;
}

.template-item.selected::after {
  content: '\2713'; /* Checkmark symbol */
  position: absolute;
  top: 5px;
  right: 8px;
  color: white;
  font-size: 16px;
  font-weight: bold;
  z-index: 2;
}

.template-preview {
  padding: var(--spacing-lg);
  background-color: #ffffff;
  min-height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  position: relative;
  overflow: hidden;
  flex-grow: 1;
}

.template-preview::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(to right, var(--mdc-theme-primary), var(--mdc-theme-secondary));
  opacity: 1; /* Always visible */
  transition: opacity 0.3s ease;
}

.template-item:hover .template-preview::before,
.template-item.selected .template-preview::before {
  height: 4px; /* Slightly thicker on hover/select */
}

.template-info {
  padding: var(--spacing-md) var(--spacing-md) var(--spacing-lg);
  text-align: left;
  background-color: #fafafa;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  position: relative;
  z-index: 1;
}

.template-info h3 {
  margin: 0 0 var(--spacing-xs) 0;
  color: var(--mdc-theme-primary);
  font-size: 1.1rem;
  font-weight: 500;
}

.template-info p {
  margin: 0;
  color: rgba(0, 0, 0, 0.6);
  font-size: 0.9rem;
  line-height: 1.4;
}

.template-intro {
  margin-bottom: var(--spacing-lg);
  max-width: 90%;
  color: rgba(0, 0, 0, 0.7);
}

.template-sample {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.template-placeholder {
  width: 90%;
  height: 120px;
  background: linear-gradient(135deg, #f5f7fa 0%, #e4e8eb 100%);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.template-placeholder::before {
  content: '';
  position: absolute;
  top: 10px;
  left: 10px;
  right: 10px;
  height: 20px;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 2px;
}

.template-placeholder::after {
  content: '';
  position: absolute;
  bottom: 10px;
  left: 10px;
  width: 60%;
  height: 40px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 2px;
}

.template-placeholder-icon {
  width: 40px;
  height: 40px;
  background-color: var(--mdc-theme-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  position: relative;
  z-index: 2;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.template-placeholder-icon .material-icons {
  font-size: 20px;
}

/* Style Tab */
.style-section {
  margin-bottom: var(--spacing-lg);
}

.color-scheme-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.color-scheme-item {
  text-align: center;
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--border-radius);
  transition: all 0.2s ease;
}

.color-scheme-item:hover {
  background-color: rgba(0, 0, 0, 0.04);
}

.color-scheme-item.selected {
  background-color: rgba(26, 115, 232, 0.08);
}

.color-preview {
  display: flex;
  margin-bottom: var(--spacing-xs);
  height: 20px;
  border-radius: var(--border-radius);
  overflow: hidden;
}

.color-swatch {
  flex: 1;
}

.color-name {
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Image Upload */
.dropzone-container {
  margin-bottom: var(--spacing-lg);
}

.dropzone {
  border: 2px dashed rgba(0, 0, 0, 0.2);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.dropzone:hover {
  border-color: var(--mdc-theme-primary);
}

.dz-message {
  color: rgba(0, 0, 0, 0.6);
}

.dz-message .note {
  display: block;
  font-size: 12px;
  margin-top: var(--spacing-sm);
}

.image-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: var(--spacing-md);
}

.image-item {
  position: relative;
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: var(--border-radius);
  overflow: hidden;
}

.image-preview {
  width: 100%;
  height: 100px;
  object-fit: contain;
  background-color: #f5f5f5;
}

.image-actions {
  position: absolute;
  top: 0;
  right: 0;
  background-color: rgba(0, 0, 0, 0.5);
  border-radius: 0 0 0 var(--border-radius);
}

.image-delete {
  color: white;
  padding: var(--spacing-xs);
  cursor: pointer;
}

.image-name {
  font-size: 12px;
  padding: var(--spacing-xs);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: center;
  background-color: #f5f5f5;
}

/* Action Buttons */
.action-buttons {
  display: flex;
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

/* Email Client Instructions */
.email-client-instructions {
  margin-top: var(--spacing-xl);
  border-top: 1px solid rgba(0, 0, 0, 0.12);
  padding-top: var(--spacing-lg);
}

.instructions-content {
  margin-top: var(--spacing-md);
}

.instructions-panel {
  display: none;
  padding: var(--spacing-md);
  background-color: #f5f5f5;
  border-radius: var(--border-radius);
}

.instructions-panel.active {
  display: block;
}

.instructions-panel ol {
  margin: 0;
  padding-left: var(--spacing-lg);
}

.instructions-panel li {
  margin-bottom: var(--spacing-sm);
}

/* Save Dialog */
.account-prompt {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(0, 0, 0, 0.12);
}

.password-requirements {
  margin-top: var(--spacing-xs);
}

/* Banner (Flash Messages) */
.mdc-banner {
  position: relative;
  z-index: 1;
}

.mdc-banner--success .mdc-banner__content {
  background-color: #4caf50;
  color: white;
}

.mdc-banner--error .mdc-banner__content {
  background-color: #f44336;
  color: white;
}

.mdc-banner--warning .mdc-banner__content {
  background-color: #ff9800;
  color: white;
}

/* Responsive Adjustments */
@media (max-width: 839px) {
  .action-buttons {
    flex-direction: column;
  }
  
  .template-list,
  .color-scheme-list {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  }
}

@media (max-width: 599px) {
  .template-list {
    grid-template-columns: 1fr;
  }
  
  .color-scheme-list {
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  }
}

/* Signature Preview Styles */
#signature-preview table {
  border-collapse: collapse;
}

#signature-preview td {
  padding: 0;
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Focus styles for keyboard navigation */
:focus-visible {
  outline: 2px solid var(--mdc-theme-primary);
  outline-offset: 2px;
}

/* Create directory structure for uploads */
.uploads-notice {
  display: none;
}