/* StatsAI Email Assistant - Premium Superhuman-Inspired Design */

/* CSS Custom Properties - Enhanced Theme System */
:root {
  /* Premium Snow Theme (Light) */
  --color-snow-bg: #ffffff;
  --color-snow-bg-secondary: #fbfbfc;
  --color-snow-bg-tertiary: #f6f7f9;
  --color-snow-bg-hover: #f0f2f5;
  --color-snow-text-primary: #0a0d14;
  --color-snow-text-secondary: #4a5568;
  --color-snow-text-tertiary: #718096;
  --color-snow-text-muted: #a0aec0;
  --color-snow-border: #e1e7ef;
  --color-snow-border-subtle: #f1f4f8;
  --color-snow-border-focus: #cbd5e0;

  /* Premium Carbon Theme (Dark) */
  --color-carbon-bg: #050505;
  --color-carbon-bg-secondary: #0f0f10;
  --color-carbon-bg-tertiary: #1a1b1e;
  --color-carbon-bg-hover: #242529;
  --color-carbon-text-primary: #f7fafc;
  --color-carbon-text-secondary: #cbd5e0;
  --color-carbon-text-tertiary: #8892a0;
  --color-carbon-text-muted: #4a5568;
  --color-carbon-border: #2d3748;
  --color-carbon-border-subtle: #1a202c;
  --color-carbon-border-focus: #4a5568;

  /* Enhanced Accent Colors */
  --color-primary: #5cc3fa;
  --color-primary-hover: #4fb3ea;
  --color-primary-light: #e1f5fe;
  --color-primary-dark: #2b5b75;
  --color-success: #62cc7b;
  --color-success-light: #e8f5e9;
  --color-warning: #fa75f8;
  --color-warning-light: #fce4ec;
  --color-error: #ff91a5;
  --color-error-light: #ffebee;
  --color-ai: #8b5cf6;
  --color-ai-light: #ede9fe;
  --color-ai-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  
  /* Inter Font System */
  --font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-feature-settings: "kern" 1, "dlig" 1, "ss01" 1;
  
  /* Typography Scale */
  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-lg: 1.125rem;   /* 18px */
  --font-size-xl: 1.25rem;    /* 20px */
  --font-size-2xl: 1.5rem;    /* 24px */
  --font-size-3xl: 1.875rem;  /* 30px */
  
  /* Spacing System */
  --spacing-1: 0.25rem;   /* 4px */
  --spacing-2: 0.5rem;    /* 8px */
  --spacing-3: 0.75rem;   /* 12px */
  --spacing-4: 1rem;      /* 16px */
  --spacing-5: 1.25rem;   /* 20px */
  --spacing-6: 1.5rem;    /* 24px */
  --spacing-8: 2rem;      /* 32px */
  --spacing-10: 2.5rem;   /* 40px */
  --spacing-12: 3rem;     /* 48px */
  
  /* Border Radius */
  --radius-sm: 0.375rem;  /* 6px */
  --radius-md: 0.5rem;    /* 8px */
  --radius-lg: 0.75rem;   /* 12px */
  --radius-xl: 1rem;      /* 16px */
  
  /* Enhanced Shadows */
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.04), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.1), 0 4px 10px -2px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 40px -4px rgba(0, 0, 0, 0.15), 0 8px 16px -3px rgba(0, 0, 0, 0.08);
  --shadow-glow: 0 0 30px rgba(92, 195, 250, 0.3);
  
  /* Z-Index Scale */
  --z-index-dropdown: 1000;
  --z-index-sticky: 1020;
  --z-index-fixed: 1030;
  --z-index-modal-backdrop: 1040;
  --z-index-modal: 1050;
  --z-index-popover: 1060;
  --z-index-tooltip: 1070;
}

/* Theme Variables - Enhanced */
.theme-snow {
  --bg-primary: var(--color-snow-bg);
  --bg-secondary: var(--color-snow-bg-secondary);
  --bg-tertiary: var(--color-snow-bg-tertiary);
  --bg-hover: var(--color-snow-bg-hover);
  --text-primary: var(--color-snow-text-primary);
  --text-secondary: var(--color-snow-text-secondary);
  --text-tertiary: var(--color-snow-text-tertiary);
  --text-muted: var(--color-snow-text-muted);
  --border-color: var(--color-snow-border);
  --border-subtle: var(--color-snow-border-subtle);
  --border-focus: var(--color-snow-border-focus);
  --shadow-color: rgba(0, 0, 0, 0.08);
}

.theme-carbon {
  --bg-primary: var(--color-carbon-bg);
  --bg-secondary: var(--color-carbon-bg-secondary);
  --bg-tertiary: var(--color-carbon-bg-tertiary);
  --bg-hover: var(--color-carbon-bg-hover);
  --text-primary: var(--color-carbon-text-primary);
  --text-secondary: var(--color-carbon-text-secondary);
  --text-tertiary: var(--color-carbon-text-tertiary);
  --text-muted: var(--color-carbon-text-muted);
  --border-color: var(--color-carbon-border);
  --border-subtle: var(--color-carbon-border-subtle);
  --border-focus: var(--color-carbon-border-focus);
  --shadow-color: rgba(0, 0, 0, 0.3);
}

/* Base Styles */
* {
  box-sizing: border-box;
}

html {
  font-feature-settings: var(--font-feature-settings);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.5;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  overflow: hidden; /* Prevent body scroll in desktop app */
}

/* Loading Screen */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-index-modal);
}

.loading-content {
  text-align: center;
  max-width: 400px;
  padding: var(--spacing-8);
}

.loading-logo {
  margin-bottom: var(--spacing-8);
}

.loading-icon {
  width: 48px;
  height: 48px;
  color: var(--color-primary);
  margin-bottom: var(--spacing-4);
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.loading-logo h1 {
  margin: 0;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--text-primary);
}

.loading-progress {
  margin-top: var(--spacing-6);
}

.progress-bar {
  width: 100%;
  height: 4px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: var(--spacing-3);
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-ai));
  border-radius: var(--radius-sm);
  width: 0%;
  transition: width 0.3s ease;
}

#loadingStatus {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  margin: 0;
}

/* Authentication Screen */
.auth-screen {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-index-modal);
}

.auth-container {
  max-width: 480px;
  width: 100%;
  padding: var(--spacing-8);
  text-align: center;
}

.auth-header {
  margin-bottom: var(--spacing-10);
}

.auth-logo {
  margin-bottom: var(--spacing-6);
}

.auth-icon {
  width: 56px;
  height: 56px;
  color: var(--color-primary);
  margin-bottom: var(--spacing-4);
}

.auth-logo h1 {
  margin: 0;
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--text-primary);
}

.auth-subtitle {
  color: var(--text-secondary);
  font-size: var(--font-size-lg);
  margin: 0;
}

.auth-options {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-10);
}

.auth-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--spacing-5) var(--spacing-6);
  background: var(--bg-secondary);
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  color: inherit;
  position: relative;
  overflow: hidden;
}

.auth-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, var(--color-primary-light), transparent);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.auth-btn:hover {
  background: var(--bg-tertiary);
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px -5px var(--shadow-color);
}

.auth-btn:hover::before {
  transform: translateX(100%);
}

.auth-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.auth-btn:disabled:hover {
  background: var(--bg-secondary);
  border-color: var(--border-color);
  transform: none;
  box-shadow: none;
}

.auth-btn-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

.microsoft-logo,
.google-logo {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.auth-btn-text {
  text-align: left;
}

.auth-btn-title {
  display: block;
  font-weight: 600;
  color: var(--text-primary);
  font-size: var(--font-size-base);
}

.auth-btn-subtitle {
  display: block;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-1);
}

.auth-btn-arrow {
  width: 20px;
  height: 20px;
  color: var(--text-tertiary);
  flex-shrink: 0;
}

.auth-features h3 {
  color: var(--text-primary);
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-4);
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
  text-align: left;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
}

.feature-icon {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.feature-item span {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

/* Main Application */
.main-app {
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg-primary);
}

/* Application Header */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-3) var(--spacing-6);
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  height: 64px;
  flex-shrink: 0;
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-6);
  flex: 1;
}

.app-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.logo-icon {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
}

.logo-text {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--text-primary);
}

.search-container {
  position: relative;
  flex: 1;
  max-width: 480px;
}

.search-icon {
  position: absolute;
  left: var(--spacing-3);
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--text-tertiary);
}

.search-input {
  width: 100%;
  padding: var(--spacing-2) var(--spacing-4) var(--spacing-2) var(--spacing-10);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  outline: none;
  transition: all 0.2s ease;
}

.search-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(92, 195, 250, 0.1);
}

.search-input::placeholder {
  color: var(--text-tertiary);
}

.search-shortcut {
  position: absolute;
  right: var(--spacing-3);
  top: 50%;
  transform: translateY(-50%);
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
  background: var(--bg-tertiary);
  padding: var(--spacing-1) var(--spacing-2);
  border-radius: var(--radius-sm);
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
}

.header-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.header-btn:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.user-profile {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-2);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.user-profile:hover {
  background: var(--bg-secondary);
}

.user-avatar {
  width: 32px;
  height: 32px;
  background: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.user-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.user-name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-email {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Main Content Layout */
.main-content {
  display: flex;
  flex: 1;
  min-height: 0; /* Allow flex items to shrink */
}

/* Email Sidebar */
.email-sidebar {
  width: 280px;
  background: var(--bg-primary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.sidebar-header {
  padding: var(--spacing-4);
  border-bottom: 1px solid var(--border-subtle);
}

.compose-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-3);
  padding: var(--spacing-3) var(--spacing-4);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  border: none;
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.compose-btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.compose-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px -4px rgba(92, 195, 250, 0.4);
}

.compose-btn:hover::before {
  width: 300px;
  height: 300px;
}

.compose-btn svg {
  width: 16px;
  height: 16px;
}

.email-navigation {
  flex: 1;
  padding: var(--spacing-2) 0;
  overflow-y: auto;
}

.nav-section {
  margin-bottom: var(--spacing-6);
}

.nav-section-title {
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  margin: 0 0 var(--spacing-2) var(--spacing-4);
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-2) var(--spacing-4);
  margin: 0 var(--spacing-2) var(--spacing-1) var(--spacing-2);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.nav-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 0;
  background: var(--color-primary);
  border-radius: 0 2px 2px 0;
  transition: height 0.3s ease;
}

.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  padding-left: calc(var(--spacing-4) + 2px);
}

.nav-item.active {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-weight: 600;
}

.nav-item.active::before {
  height: 20px;
}

.nav-item svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.nav-item span:first-of-type {
  flex: 1;
}

.nav-count {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
  background: var(--bg-tertiary);
  padding: var(--spacing-1) var(--spacing-2);
  border-radius: var(--radius-sm);
  min-width: 20px;
  text-align: center;
}

.nav-item.active .nav-count {
  background: var(--color-primary);
  color: white;
}

.ai-status {
  padding: var(--spacing-4);
  border-top: 1px solid var(--border-subtle);
}

.ai-indicator {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  margin-bottom: var(--spacing-3);
}

.ai-pulse {
  width: 8px;
  height: 8px;
  background: var(--color-success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.ai-indicator span {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  font-weight: 500;
}

.processing-status {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

.processing-status svg {
  width: 12px;
  height: 12px;
  animation: spin 2s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Center Panel Split View */
.email-center-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* Email List Container (Top Half) */
.email-list-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 300px;
  border-bottom: 1px solid var(--border-color);
}

.email-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-4);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-color);
}

.list-title {
  display: flex;
  align-items: baseline;
  gap: var(--spacing-3);
}

.list-title h2 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin: 0;
  color: var(--text-primary);
}

.email-count {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  font-weight: 500;
}

.list-actions {
  display: flex;
  gap: var(--spacing-2);
}

.list-action-btn {
  padding: var(--spacing-2);
  border: none;
  background: transparent;
  border-radius: var(--border-radius);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
}

.list-action-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.email-list {
  flex: 1;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

.email-list::-webkit-scrollbar {
  width: 6px;
}

.email-list::-webkit-scrollbar-track {
  background: transparent;
}

.email-list::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

.email-list::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
}

/* Email Download Status Bar */
.download-status-bar {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: var(--spacing-3);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-4);
  animation: slideDown 0.3s ease;
}

.download-progress {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.progress-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.progress-bar {
  height: 4px;
  background: var(--bg-tertiary);
  border-radius: 2px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 2px;
  transition: width 0.3s ease;
  position: relative;
}

.progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.download-controls {
  display: flex;
  gap: var(--spacing-2);
}

.download-control-btn {
  padding: var(--spacing-2);
  border: none;
  background: var(--bg-tertiary);
  border-radius: var(--border-radius);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
}

.download-control-btn:hover {
  background: var(--color-danger);
  color: white;
}

/* Email List Item - Premium Style with tighter spacing */
.email-item {
  display: flex;
  align-items: flex-start;
  padding: var(--spacing-2) var(--spacing-4); /* Reduced from spacing-4/5 to spacing-2/4 */
  border-bottom: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.email-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-primary);
  transform: translateX(-100%);
  transition: transform 0.3s ease;
}

.email-item:hover {
  background: var(--bg-hover);
  padding-left: calc(var(--spacing-4) + 3px); /* Adjusted for new padding */
}

.email-item:hover::before {
  transform: translateX(0);
}

.email-item.selected {
  background: linear-gradient(90deg, var(--color-primary-light) 0%, transparent 100%);
  border-left: 3px solid var(--color-primary);
  color: var(--text-primary);
}

.email-item.selected .email-sender {
  color: var(--text-primary) !important;
  font-weight: 600;
}

.email-item.selected .email-subject {
  color: var(--text-primary) !important;
}

.email-item.selected .email-preview {
  color: var(--text-secondary) !important;
}

.email-item.unread {
  background: var(--bg-tertiary);
  font-weight: 600;
}

.email-item.unread::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-primary);
}

.email-checkbox {
  margin-right: var(--spacing-3);
  opacity: 0;
  transition: opacity 0.15s ease;
}

.email-item:hover .email-checkbox {
  opacity: 1;
}

.email-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: var(--font-size-sm);
  margin-right: var(--spacing-3);
  flex-shrink: 0;
}

.email-details {
  flex: 1;
  min-width: 0;
}

.email-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-1);
}

.email-sender {
  font-weight: 600;
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  truncate: true;
  max-width: 200px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.email-date {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
  white-space: nowrap;
}

.email-subject {
  font-weight: 500;
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.email-preview {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.email-tags {
  display: flex;
  gap: var(--spacing-1);
  margin-top: var(--spacing-2);
}

.email-tag {
  font-size: var(--font-size-xs);
  padding: 2px var(--spacing-2);
  border-radius: var(--border-radius);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  font-weight: 500;
}

.email-tag.priority-high {
  background: var(--color-error);
  color: white;
}

.email-tag.priority-medium {
  background: var(--color-warning);
  color: white;
}

/* Panel Resizer */
.panel-resizer {
  height: 4px;
  background: var(--border-color);
  cursor: row-resize;
  transition: background-color 0.15s ease;
  position: relative;
}

.panel-resizer:hover {
  background: var(--color-primary);
}

.panel-resizer::before {
  content: '';
  position: absolute;
  top: -2px;
  left: 0;
  right: 0;
  height: 8px;
  background: transparent;
}

/* Email Content Container (Bottom Half) */
.email-content-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 300px;
}

.email-content-header {
  padding: var(--spacing-3) var(--spacing-4);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-color);
}

.content-toolbar {
  display: flex;
  gap: var(--spacing-2);
}

.toolbar-btn {
  padding: var(--spacing-2);
  border: none;
  background: transparent;
  border-radius: var(--border-radius);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
}

.toolbar-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

/* Email Content Area */
.email-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-3); /* Reduced padding for tighter layout */
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
  background: var(--bg-primary);
  min-width: 0;
}

.email-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-3) var(--spacing-4);
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
}

.toolbar-left,
.toolbar-right {
  display: flex;
  gap: var(--spacing-2);
}

.toolbar-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.toolbar-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.toolbar-btn svg {
  width: 16px;
  height: 16px;
}

.email-list {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-2);
}

.email-viewer {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-6);
}

/* Email Message Content */
.email-message {
  padding: 0;
}

.email-message-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding-bottom: var(--spacing-4);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: var(--spacing-4);
}

.sender-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
}

.sender-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: var(--font-size-lg);
  flex-shrink: 0;
}

.sender-details {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
}

.sender-name {
  font-weight: 600;
  color: var(--text-primary);
  font-size: var(--font-size-base);
}

.sender-email {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.message-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  text-align: right;
}

.message-date {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.star-icon {
  cursor: pointer;
  color: var(--text-tertiary);
  transition: color 0.15s ease;
}

.star-icon:hover,
.star-icon.starred {
  color: var(--color-warning);
}

.email-subject-header {
  margin-bottom: var(--spacing-4);
}

.email-subject-header h2 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin: 0;
  color: var(--text-primary);
  line-height: 1.4;
}

.email-message-body {
  color: var(--text-primary);
  line-height: 1.3; /* Tightened from 1.6 to 1.3 */
  font-size: var(--font-size-base);
  white-space: pre-wrap;
  word-wrap: break-word;
}

.email-attachments {
  margin-top: var(--spacing-6);
  padding-top: var(--spacing-4);
  border-top: 1px solid var(--border-color);
}

.email-attachments h4 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 var(--spacing-3) 0;
}

.attachment-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.attachment-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  background: var(--bg-secondary);
}

.attachment-item i {
  color: var(--text-secondary);
}

.attachment-item span {
  flex: 1;
  font-size: var(--font-size-sm);
  color: var(--text-primary);
}

.download-btn {
  padding: var(--spacing-1) var(--spacing-2);
  border: 1px solid var(--border-color);
  background: var(--bg-color);
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  font-size: var(--font-size-xs);
  cursor: pointer;
  transition: all 0.15s ease;
}

.download-btn:hover {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.attachment-icon {
  margin-left: var(--spacing-1);
  color: var(--text-tertiary);
  font-size: var(--font-size-xs);
}

/* Calendar Event Styles */
.email-calendar-icon {
  margin-right: var(--spacing-1);
  color: var(--accent-color);
  font-size: var(--font-size-sm);
}

.email-item.is-calendar-event {
  border-left: 3px solid var(--accent-color);
  background: rgba(99, 102, 241, 0.05);
}

.email-item.is-calendar-event .email-subject {
  color: var(--accent-color);
  font-weight: 600;
}

.email-attachment-icon,
.email-important-icon {
  margin-left: var(--spacing-1);
  color: var(--text-tertiary);
  font-size: var(--font-size-xs);
}

.email-important-icon {
  color: var(--warning-color);
}

/* Calendar Events Section */
.calendar-events-section {
  margin-top: var(--spacing-6);
  padding-top: var(--spacing-4);
  border-top: 1px solid var(--border-light);
}

.calendar-events-header h3 {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  color: var(--text-primary);
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-4);
}

.calendar-events-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.calendar-event-item {
  background: var(--background-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius);
  padding: var(--spacing-4);
  transition: all 0.2s ease;
}

.calendar-event-item:hover {
  border-color: var(--accent-color);
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.15);
}

.calendar-event-header {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
  margin-bottom: var(--spacing-2);
}

.calendar-event-title {
  font-weight: 600;
  color: var(--text-primary);
  font-size: var(--font-size-base);
}

.calendar-event-time {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.calendar-event-location,
.calendar-event-attendees {
  display: flex;
  align-items: center;
  gap: var(--spacing-1);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-1);
}

.calendar-event-location i,
.calendar-event-attendees i {
  width: 14px;
  height: 14px;
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-tertiary);
  text-align: center;
}

.empty-state .empty-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-4);
  opacity: 0.5;
}

.empty-state p {
  font-size: var(--font-size-base);
  margin: 0;
}

/* AI Assistant Panel - Doubled width from 320px to 640px */
.ai-assistant {
  width: 640px;
  background: var(--bg-primary);
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.assistant-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-4);
  border-bottom: 1px solid var(--border-subtle);
}

.assistant-title {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.assistant-title h3 {
  margin: 0;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
}

.assistant-title svg {
  width: 20px;
  height: 20px;
  color: var(--color-ai);
}

.assistant-toggle {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--spacing-1);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.assistant-toggle:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.assistant-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.chat-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-4);
}

.ai-message {
  display: flex;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-4);
}

.message-avatar {
  width: 32px;
  height: 32px;
  background: var(--color-ai);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
}

.message-avatar svg {
  width: 16px;
  height: 16px;
}

.message-content {
  flex: 1;
  min-width: 0;
}

.message-content p {
  margin: 0 0 var(--spacing-2) 0;
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  line-height: 1.5;
}

.message-content ul {
  margin: 0 0 var(--spacing-2) 0;
  padding-left: var(--spacing-4);
}

.message-content li {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-1);
}

.chat-input-container {
  padding: var(--spacing-4);
  border-top: 1px solid var(--border-subtle);
}

/* Suggested Responses */
.suggested-responses {
  margin-bottom: var(--spacing-4);
  padding: var(--spacing-3);
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
}

.suggestions-header {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-2);
  font-weight: 500;
}

.response-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.response-btn {
  padding: var(--spacing-2) var(--spacing-3);
  border: 1px solid var(--border-color);
  background: var(--bg-color);
  border-radius: var(--border-radius);
  color: var(--text-primary);
  cursor: pointer;
  font-size: var(--font-size-sm);
  transition: all 0.15s ease;
  text-align: left;
}

.response-btn:hover {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.chat-input {
  display: flex;
  gap: var(--spacing-2);
  margin-bottom: var(--spacing-3);
}

.chat-input input {
  flex: 1;
  padding: var(--spacing-3);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  outline: none;
  transition: all 0.2s ease;
}

.chat-input input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(92, 195, 250, 0.1);
}

.chat-input input::placeholder {
  color: var(--text-tertiary);
}

.send-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  color: white;
  cursor: pointer;
  transition: all 0.2s ease;
}

.send-btn:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

.send-btn svg {
  width: 16px;
  height: 16px;
}

.quick-actions {
  display: flex;
  gap: var(--spacing-2);
  flex-wrap: wrap;
}

.quick-action-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-3);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.quick-action-btn:hover {
  background: var(--bg-tertiary);
  border-color: var(--color-primary);
  color: var(--text-primary);
}

.quick-action-btn svg {
  width: 14px;
  height: 14px;
}

/* Compose Panel */
.compose-panel {
  padding: var(--spacing-4);
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
}

.compose-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-4);
}

.compose-header h3 {
  margin: 0;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
}

.close-compose {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--spacing-1);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.close-compose:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.compose-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

.compose-field {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.compose-field label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.compose-field input,
.compose-field textarea {
  padding: var(--spacing-3);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  outline: none;
  transition: all 0.2s ease;
  font-family: var(--font-family);
}

.compose-field input:focus,
.compose-field textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(92, 195, 250, 0.1);
}

.compose-field input::placeholder,
.compose-field textarea::placeholder {
  color: var(--text-tertiary);
}

.compose-editor {
  position: relative;
}

.editor-toolbar {
  display: flex;
  gap: var(--spacing-2);
  padding: var(--spacing-2);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-bottom: none;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.editor-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-1);
  padding: var(--spacing-1) var(--spacing-2);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.editor-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.editor-btn svg {
  width: 14px;
  height: 14px;
}

.compose-editor textarea {
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  border-top: none;
  min-height: 120px;
  resize: vertical;
}

.compose-actions {
  display: flex;
  gap: var(--spacing-3);
  justify-content: flex-end;
  padding-top: var(--spacing-2);
}

.btn-primary,
.btn-secondary {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-4);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  font-family: var(--font-family);
}

.btn-primary {
  background: var(--color-primary);
  color: white;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-secondary);
  border-color: var(--color-primary);
}

.btn-primary svg,
.btn-secondary svg {
  width: 16px;
  height: 16px;
}

/* Settings Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-index-modal);
}

.modal-content {
  background: var(--bg-primary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  max-width: 600px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  margin: var(--spacing-4);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-6);
  border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
  margin: 0;
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--spacing-2);
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
}

.modal-close:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.modal-body {
  padding: var(--spacing-6);
}

.settings-section {
  margin-bottom: var(--spacing-8);
}

.settings-section:last-child {
  margin-bottom: 0;
}

.settings-section h3 {
  margin: 0 0 var(--spacing-4) 0;
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
}

.setting-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-4);
}

.setting-item:last-child {
  margin-bottom: 0;
}

.setting-item label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.setting-item select {
  padding: var(--spacing-2) var(--spacing-3);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  outline: none;
  min-width: 200px;
}

.setting-item select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(92, 195, 250, 0.1);
}

.processing-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .ai-assistant {
    width: 480px; /* Adjusted for smaller screens - still wider than before */
  }
  
  .search-container {
    max-width: 320px;
  }
}

@media (max-width: 768px) {
  .main-content {
    flex-direction: column;
  }
  
  .email-sidebar {
    width: 100%;
    height: 200px;
  }
  
  .ai-assistant {
    width: 100%;
    height: 300px;
  }
  
  .header-left {
    flex-direction: column;
    gap: var(--spacing-2);
  }
  
  .search-container {
    max-width: none;
  }
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
  from { transform: translateX(-100%); }
  to { transform: transform(0); }
}

/* Utility Classes */
.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 */
*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Print Styles */
@media print {
  .loading-screen,
  .auth-screen,
  .ai-assistant,
  .email-sidebar,
  .app-header,
  .email-toolbar {
    display: none !important;
  }
  
  .main-app {
    height: auto;
  }
  
  .email-content {
    width: 100%;
  }
}

/* Email Content Display Styles */
.email-header-full {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: var(--spacing-4);
  margin-bottom: var(--spacing-4);
}

.email-subject-line {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-3);
}

.email-subject-full {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.3;
  flex: 1;
}

.email-badges {
  display: flex;
  gap: var(--spacing-1);
  flex-shrink: 0;
}

.email-badge {
  font-size: var(--font-size-xs);
  font-weight: 500;
  padding: var(--spacing-1) var(--spacing-2);
  border-radius: var(--radius-sm);
  text-transform: uppercase;
}

.email-badge.priority {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
}

.email-badge.ai {
  background: rgba(139, 92, 246, 0.1);
  color: var(--color-ai);
}

.email-badge.calendar {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
}

.email-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-3);
}

.email-from {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
}

.email-avatar-large {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: var(--font-size-lg);
}

.email-from-info {
  display: flex;
  flex-direction: column;
}

.email-from-name {
  font-weight: 600;
  color: var(--text-primary);
  font-size: var(--font-size-base);
}

.email-from-email {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.email-timestamp {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  text-align: right;
}

.email-recipients {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.recipient-label {
  font-weight: 500;
  color: var(--text-tertiary);
}

.recipient-email {
  color: var(--text-secondary);
}

.email-body {
  line-height: 1.3; /* Tightened from 1.6 to 1.3 */
  color: var(--text-primary);
  font-size: var(--font-size-base);
  white-space: pre-wrap;
  word-wrap: break-word;
}

.email-body p {
  margin-bottom: var(--spacing-4);
}

.email-attachments {
  margin-top: var(--spacing-6);
  padding-top: var(--spacing-4);
  border-top: 1px solid var(--border-color);
}

.attachment-indicator {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.attachment-indicator i {
  width: 16px;
  height: 16px;
}

/* Empty state for email content */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-tertiary);
}

.empty-icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--spacing-4);
  opacity: 0.5;
}

.empty-state p {
  font-size: var(--font-size-sm);
  text-align: center;
}

/* AI Draft Modal Styles */
.draft-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--spacing-6);
}

.draft-modal-content {
  background: var(--background-primary);
  border-radius: 16px;
  width: 90%;
  max-width: 800px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.draft-modal-header {
  padding: var(--spacing-6);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: linear-gradient(135deg, 
    rgba(99, 102, 241, 0.05) 0%, 
    rgba(139, 92, 246, 0.05) 100%);
}

.draft-modal-header h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.draft-modal-close {
  background: var(--background-secondary);
  border: none;
  border-radius: 8px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text-secondary);
}

.draft-modal-close:hover {
  background: var(--background-tertiary);
  color: var(--text-primary);
  transform: scale(1.1);
}

.draft-modal-body {
  padding: var(--spacing-6);
  overflow-y: auto;
  flex: 1;
}

.draft-loading {
  display: none;
  text-align: center;
  padding: var(--spacing-8);
  color: var(--text-secondary);
}

.draft-loading .loading-spinner {
  width: 32px;
  height: 32px;
  border: 2px solid var(--border-color);
  border-top: 2px solid var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto var(--spacing-4);
}

.draft-content {
  display: block;
}

/* Thread Summary Section */
.thread-summary {
  background: var(--background-secondary);
  border-radius: 12px;
  margin-bottom: var(--spacing-6);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.thread-summary-header {
  padding: var(--spacing-4) var(--spacing-6);
  background: linear-gradient(135deg, 
    rgba(99, 102, 241, 0.1) 0%, 
    rgba(139, 92, 246, 0.1) 100%);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.thread-summary-header h4 {
  margin: 0;
  color: var(--text-primary);
  font-size: var(--font-size-base);
  font-weight: 600;
}

.thread-summary-toggle {
  background: none;
  border: none;
  font-size: 16px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: transform 0.2s;
}

.thread-summary-toggle:hover {
  transform: scale(1.1);
}

.thread-summary-content {
  padding: var(--spacing-6);
}

.conversation-timeline,
.key-points {
  margin-bottom: var(--spacing-6);
}

.conversation-timeline h4,
.key-points h4 {
  margin: 0 0 var(--spacing-4) 0;
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  font-weight: 600;
}

.timeline-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-4);
  position: relative;
}

.timeline-item.current {
  background: rgba(99, 102, 241, 0.05);
  border-radius: 8px;
  padding: var(--spacing-3);
  margin: -var(--spacing-2) -var(--spacing-3) var(--spacing-2);
}

.timeline-marker {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  margin-top: 6px;
  flex-shrink: 0;
}

.timeline-item.current .timeline-marker {
  background: var(--color-success);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.2);
}

.timeline-content {
  flex: 1;
}

.timeline-content strong {
  color: var(--text-primary);
  font-size: var(--font-size-sm);
}

.timeline-time {
  color: var(--text-tertiary);
  font-size: var(--font-size-xs);
  margin-left: var(--spacing-2);
}

.timeline-subject {
  margin: 2px 0 0;
  color: var(--text-secondary);
  font-size: var(--font-size-xs);
  line-height: 1.3;
}

.key-points ul {
  margin: 0;
  padding-left: var(--spacing-4);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.5;
}

.key-points li {
  margin-bottom: var(--spacing-2);
}

.single-email-summary p {
  margin: 0 0 var(--spacing-2) 0;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

/* Draft Generation Section */
.draft-generation {
  background: var(--background-primary);
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.draft-generation-header {
  padding: var(--spacing-4) var(--spacing-6);
  background: linear-gradient(135deg, 
    rgba(16, 185, 129, 0.1) 0%, 
    rgba(6, 182, 212, 0.1) 100%);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.draft-generation-header h4 {
  margin: 0;
  color: var(--text-primary);
  font-size: var(--font-size-base);
  font-weight: 600;
}

.draft-actions {
  display: flex;
  gap: var(--spacing-2);
}

.draft-action-btn {
  background: var(--background-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: var(--spacing-2) var(--spacing-3);
  font-size: var(--font-size-xs);
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text-secondary);
}

.draft-action-btn:hover {
  background: var(--background-tertiary);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.draft-generation-content {
  padding: var(--spacing-6);
}

.draft-field {
  margin-bottom: var(--spacing-4);
}

.draft-field label {
  display: block;
  margin-bottom: var(--spacing-2);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.draft-field input,
.draft-field textarea {
  width: 100%;
  padding: var(--spacing-3);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--background-primary);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  transition: all 0.2s;
  font-family: inherit;
}

.draft-field textarea {
  resize: vertical;
  min-height: 200px;
  line-height: 1.6;
}

.draft-field input:focus,
.draft-field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.draft-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--spacing-2);
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

.word-count {
  color: var(--text-secondary);
}

/* Draft Modal Footer */
.draft-modal-footer {
  padding: var(--spacing-6);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-3);
  background: var(--background-secondary);
}

.draft-footer-btn {
  padding: var(--spacing-3) var(--spacing-6);
  border-radius: 8px;
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid var(--border-color);
  background: var(--background-primary);
  color: var(--text-secondary);
}

.draft-footer-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.draft-footer-btn.primary {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.draft-footer-btn.primary:hover {
  background: rgba(99, 102, 241, 0.9);
}

.draft-footer-btn.success {
  background: var(--color-success);
  border-color: var(--color-success);
  color: white;
}

.draft-footer-btn.success:hover {
  background: rgba(16, 185, 129, 0.9);
}

/* Responsive Design */
@media (max-width: 768px) {
  .draft-modal-content {
    width: 95%;
    max-height: 95vh;
  }
  
  .draft-modal-header,
  .draft-modal-body,
  .draft-modal-footer {
    padding: var(--spacing-4);
  }
  
  .draft-actions {
    flex-direction: column;
    gap: var(--spacing-1);
  }
  
  .draft-modal-footer {
    flex-direction: column;
  }
}

/* Calendar Integration Styles */
.calendar-interface {
  padding: var(--spacing-4);
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--spacing-3);
  border-bottom: 1px solid var(--color-border);
}

.calendar-header h2 {
  margin: 0;
  color: var(--color-text);
  font-size: 1.5rem;
}

.calendar-controls {
  display: flex;
  gap: var(--spacing-2);
}

.calendar-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-4);
}

.stat-card {
  background: var(--color-card);
  padding: var(--spacing-3);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-1);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.calendar-content {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: var(--spacing-4);
  flex: 1;
  min-height: 0;
}

.calendar-sidebar {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--spacing-3);
  height: fit-content;
}

.calendar-sidebar h3 {
  margin: 0 0 var(--spacing-3) 0;
  font-size: 1rem;
  color: var(--color-text);
}

.calendar-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.calendar-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.calendar-item:hover {
  background: var(--color-hover);
}

.calendar-item.selected {
  background: var(--color-primary-light);
  border: 1px solid var(--color-primary);
}

.calendar-color {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

.calendar-info {
  flex: 1;
  min-width: 0;
}

.calendar-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.default-badge {
  font-size: 0.75rem;
  background: var(--color-success-light);
  color: var(--color-success);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  margin-top: 2px;
}

.calendar-main {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  min-height: 0;
}

.events-section,
.email-meetings-section {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--spacing-3);
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.events-section h3,
.email-meetings-section h3 {
  margin: 0 0 var(--spacing-3) 0;
  font-size: 1rem;
  color: var(--color-text);
}

.events-list,
.email-meetings-list {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.event-item {
  display: flex;
  gap: var(--spacing-3);
  padding: var(--spacing-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-background);
  transition: all 0.2s ease;
}

.event-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.event-item.today {
  border-color: var(--color-success);
  background: var(--color-success-light);
}

.event-time {
  flex-shrink: 0;
  width: 120px;
  text-align: center;
}

.event-date {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-1);
}

.event-time-range {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
}

.event-details {
  flex: 1;
  min-width: 0;
}

.event-subject {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.event-location,
.event-attendees {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 2px;
}

.event-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-1);
}

.email-meeting-suggestion {
  display: flex;
  gap: var(--spacing-3);
  padding: var(--spacing-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-background);
  transition: all 0.2s ease;
}

.email-meeting-suggestion:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.suggestion-email {
  flex: 1;
  min-width: 0;
}

.suggestion-subject {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.suggestion-from {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-1);
}

.suggestion-preview {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

.suggestion-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
  flex-shrink: 0;
}

.no-calendars,
.no-events,
.no-suggestions {
  text-align: center;
  color: var(--color-text-muted);
  font-style: italic;
  padding: var(--spacing-4);
}

/* Calendar Status Indicator */
#calendarStatus {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
}

/* Responsive Calendar Layout */
@media (max-width: 768px) {
  .calendar-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-3);
  }

  .calendar-sidebar {
    order: 2;
  }

  .calendar-main {
    order: 1;
  }

  .calendar-stats {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  }

  .event-item {
    flex-direction: column;
    gap: var(--spacing-2);
  }

  .event-time {
    width: auto;
    text-align: left;
  }

  .email-meeting-suggestion {
    flex-direction: column;
    gap: var(--spacing-2);
  }

  .suggestion-actions {
    flex-direction: row;
  }
}
/* ========================================
   Premium Enhancements - Superhuman Inspired
   ======================================== */

/* Premium Button Styles */
.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  border: none;
  padding: var(--spacing-2) var(--spacing-4);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

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

.btn-primary:hover::before {
  width: 300px;
  height: 300px;
}

/* Enhanced Scrollbar Styles */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
  transition: background 0.2s ease;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
}

/* Premium Focus Styles */
*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Enhanced Selection Styles */
::selection {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
}

/* Premium Glass Effect */
.glass-effect {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Smooth Animation Classes */
.animate-fade-in {
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}