/* Modern Typography */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
  /* Light Theme Variables */
  --bg-primary: #f3f4f6;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f9fafb;
  --text-primary: #1f2937;
  --text-secondary: #4b5563;
  --text-muted: #6b7280;
  --border-color: #e5e7eb;
  --accent-color: #0078d4; /* Microsoft Outlook Blue */
  --accent-hover: #106ebe;
  --accent-light: rgba(0, 120, 212, 0.1);
  --success-color: #107c41; /* Outlook Excel Green */
  --danger-color: #a80000;
  
  --card-bg: rgba(255, 255, 255, 0.85);
  --card-border: rgba(229, 231, 235, 0.5);
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.02);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -2px rgba(0,0,0,0.02);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.05);
  
  --font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --transition-speed: 0.3s;
}

[data-theme="dark"] {
  /* Dark Theme Variables */
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-tertiary: #1f2937;
  --text-primary: #f9fafb;
  --text-secondary: #d1d5db;
  --text-muted: #9ca3af;
  --border-color: #374151;
  --accent-color: #0078d4;
  --accent-hover: #2b88d8;
  --accent-light: rgba(0, 120, 212, 0.25);
  --success-color: #10b981;
  --danger-color: #ef4444;
  
  --card-bg: rgba(17, 24, 39, 0.75);
  --card-border: rgba(55, 65, 81, 0.5);
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.3), 0 2px 4px -1px rgba(0,0,0,0.2);
  --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.4), 0 10px 10px -5px rgba(0,0,0,0.3);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body, .navbar, .mail-sidebar, .mail-list-pane, .mail-details-pane, .card, .modal-content, .toast, .btn, .dev-sidebar, .dev-content, .accordion-item, .accordion-button {
  transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

html.mail-client-html, body.mail-client-page {
  height: 100%;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

body.mail-client-page {
  height: 100%;
  overflow: hidden;
}

body.mail-client-page main {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: auto;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Glassmorphism Styles */
.glass-panel {
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  box-shadow: var(--glass-shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}

.glass-panel:hover {
  box-shadow: var(--shadow-lg);
}

/* Navigation */
.navbar {
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-secondary) !important;
  transition: background-color var(--transition-speed), border-color var(--transition-speed);
  flex-shrink: 0;
}

.brand-text {
  font-weight: 700;
  background: linear-gradient(135deg, #0078d4, #8660a9);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* Card customizations */
.login-card {
  padding: 2.5rem;
  height: 100%;
}

.login-icon {
  font-size: 3rem;
  color: var(--accent-color);
  margin-bottom: 1.5rem;
}

.btn-ms-login {
  background-color: #2f2f2f;
  color: white;
  font-weight: 600;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  transition: background-color 0.2s, transform 0.1s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.btn-ms-login:hover {
  background-color: #000000;
  color: white;
  transform: translateY(-2px);
}

.btn-ms-login img {
  width: 20px;
  height: 20px;
}

/* Token Copy Card */
.token-container {
  font-family: monospace;
  font-size: 0.8rem;
  background: var(--bg-tertiary);
  border: 1px dashed var(--border-color);
  border-radius: 6px;
  padding: 10px;
  max-height: 150px;
  overflow-y: auto;
  word-break: break-all;
}

/* Mailbox Three-Pane Layout */
.app-container {
  display: flex;
  flex: 1;
  min-height: 0;
  height: 100%;
  overflow: hidden;
}

/* Pane 1: Sidebar */
.mail-sidebar {
  width: 250px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  transition: width var(--transition-speed);
  flex-shrink: 0;
}

/* Pane 2: Message List */
.mail-list-pane {
  width: 400px;
  background: var(--bg-tertiary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex-shrink: 0;
}

/* Standalone Workspace for Token Inspector */
.app-container.show-tokens .mail-list-pane {
  display: none !important;
}

/* Pane 3: Message Details */
.mail-details-pane {
  flex: 1;
  background: var(--bg-secondary);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Sidebar Styling */
.nav-link-custom {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0.75rem 1rem;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 8px;
  font-weight: 500;
  transition: all 0.2s;
}

.nav-link-custom:hover {
  background: var(--bg-primary);
  color: var(--text-primary);
}

.nav-link-custom.active {
  background: var(--accent-light);
  color: var(--accent-color);
  font-weight: 600;
}

/* Message List Styling */
.list-header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
  position: sticky;
  top: 0;
  z-index: 10;
}

.message-items {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

.mail-item {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}

.mail-item:hover {
  background: var(--bg-secondary);
}

.mail-item.selected {
  background: var(--accent-light);
  border-left: 4px solid var(--accent-color);
  padding-left: calc(1.5rem - 4px);
}

.mail-item-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 0.25rem;
}

.mail-item .subject {
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mail-item .sender {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
  font-weight: 500;
}

.mail-item .preview {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.mail-item .date {
  font-size: 0.75rem;
  color: var(--text-muted);
  flex-shrink: 0;
  white-space: nowrap;
  text-align: right;
  margin-top: 2px;
}

/* Detail View Layout */
.detail-header {
  padding: 2rem;
  border-bottom: 1px solid var(--border-color);
}

.detail-body-container {
  flex: 1;
  padding: 2rem;
  overflow-y: auto;
  background-color: var(--bg-tertiary);
}

.detail-body-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  min-height: 300px;
  box-shadow: var(--shadow-sm);
}

.iframe-container {
  width: 100%;
  height: 500px;
  border: none;
  background: white;
  border-radius: 8px;
}

.attachments-section {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.attachment-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-right: 8px;
  margin-bottom: 8px;
  max-width: 250px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Micro-Animations & Dynamic States */
.shimmer {
  background: linear-gradient(90deg, var(--border-color) 25%, var(--bg-tertiary) 50%, var(--border-color) 75%);
  background-size: 200% 100%;
  animation: loadingShimmer 1.5s infinite;
}

@keyframes loadingShimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.fade-in {
  animation: fadeIn 0.4s ease-out forwards;
}

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

/* Responsive Overrides */
@media (max-width: 992px) {
  .mail-sidebar {
    width: 70px;
    padding: 1rem 0.5rem;
    align-items: center;
  }
  .mail-sidebar .nav-link-custom span:not(.bi) {
    display: none;
  }
  .mail-sidebar .btn {
    padding: 0.5rem;
    border-radius: 50%;
  }
  .mail-sidebar .btn span {
    display: none;
  }
}

.mobile-back-header {
  display: none !important;
}

@media (max-width: 768px) {
  .app-container {
    flex-direction: column;
    position: relative;
  }
  .mail-sidebar {
    width: 100%;
    height: auto;
    flex-direction: row;
    justify-content: space-around;
    padding: 0.5rem;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }

  /* Default state: Hide details pane, show list pane (when NOT show-tokens) */
  .app-container:not(.show-message):not(.show-tokens) .mail-sidebar {
    display: flex !important;
  }
  .app-container:not(.show-message):not(.show-tokens) .mail-list-pane {
    display: flex !important;
    width: 100% !important;
    height: 100% !important;
  }
  .app-container:not(.show-message):not(.show-tokens) .mail-details-pane {
    display: none !important;
  }

  /* Standalone tokens workspace mode on mobile */
  .app-container.show-tokens:not(.show-message) .mail-sidebar {
    display: flex !important;
  }
  .app-container.show-tokens:not(.show-message) .mail-list-pane {
    display: none !important;
  }
  .app-container.show-tokens:not(.show-message) .mail-details-pane {
    display: flex !important;
    width: 100% !important;
    height: 100% !important;
    border-top: none;
  }

  /* Open message state: Hide sidebar and list pane, show details pane in full-screen */
  .app-container.show-message .mail-sidebar {
    display: none !important;
  }
  .app-container.show-message .mail-list-pane {
    display: none !important;
  }
  .app-container.show-message .mail-details-pane {
    display: flex !important;
    width: 100% !important;
    height: 100% !important;
    border-top: none;
  }

  /* Style Back button container and detail components for mobile ONLY on message view */
  .app-container.show-message .mobile-back-header {
    display: block !important;
    flex-shrink: 0;
  }
  
  .detail-header {
    padding: 1rem !important;
  }

  #detailSubject {
    font-size: 1.25rem !important;
    word-break: break-word !important;
    white-space: normal !important;
  }

  /* Body content responsive scroller bounds */
  .detail-body {
    padding: 1rem !important;
    overflow-x: auto !important;
    max-width: 100% !important;
  }

  .detail-body * {
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  /* Token Inspector Mobile Optimizations */
  #tokenInspectorView {
    padding: 1.5rem 1rem !important;
  }

  #tokenInspectorView h4 {
    font-size: 1.35rem !important;
  }

  #tokenInspectorView p {
    font-size: 0.9rem !important;
    margin-bottom: 1.5rem !important;
  }

  #tokenInspectorView .card {
    width: 100% !important;
    margin-bottom: 1rem !important;
  }

  #tokenInspectorView .card-body {
    padding: 1.25rem !important;
  }

  #tokenInspectorView .card-title {
    font-size: 1.1rem !important;
  }

  .token-container {
    font-size: 0.75rem !important;
    max-height: 120px !important;
    padding: 8px !important;
    word-break: break-all !important;
    white-space: pre-wrap !important;
  }

  #tokenInspectorView .btn {
    width: 100% !important;
    margin-bottom: 0.5rem !important;
    margin-right: 0 !important;
    display: block !important;
    padding: 0.5rem 1rem !important;
    font-size: 0.85rem !important;
  }
  
  #tokenInspectorView .btn:last-child {
    margin-bottom: 0 !important;
  }
}

/* Compact Profile Chip in Navbar */
.profile-chip {
  background-color: var(--bg-tertiary) !important;
  border: 1px solid var(--border-color) !important;
  transition: all 0.2s ease-in-out;
}

.profile-chip:hover {
  border-color: var(--accent-color) !important;
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

/* Microsoft-style profile card dropdown customizations */
.dropdown-toggle-no-caret::after {
  display: none !important;
}

.copy-btn-gradient {
  background: linear-gradient(135deg, #0078d4, #6c5ce7) !important;
  border: none !important;
  color: white !important;
}

.copy-btn-gradient:hover {
  background: linear-gradient(135deg, #106ebe, #5b4bc4) !important;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 120, 212, 0.3) !important;
}

.copy-btn-gradient:active {
  transform: translateY(0);
}

/* Theme Toggle Button UI Styles */
#themeToggleBtn {
  width: 40px !important;
  height: 40px !important;
  padding: 0 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  border-radius: 50% !important;
  border: 1px solid var(--border-color) !important;
  background-color: var(--bg-secondary) !important;
  color: var(--text-secondary) !important;
  transition: background-color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease !important;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

#themeToggleBtn:hover {
  background-color: var(--bg-tertiary) !important;
  border-color: var(--accent-color) !important;
  color: var(--accent-color) !important;
  box-shadow: var(--shadow-md) !important;
  transform: translateY(-1px);
}

#themeToggleBtn:active {
  transform: translateY(0) scale(0.95);
}

#themeToggleIcon {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 18px !important;
  height: 18px !important;
  font-size: 1.15rem !important;
  margin: 0 !important;
  padding: 0 !important;
  line-height: 1 !important;
  text-align: center !important;
}

/* Compatibility Overrides for Bootstrap text and background classes */
.text-secondary {
  color: var(--text-secondary) !important;
}

.text-muted {
  color: var(--text-muted) !important;
}

.border-secondary {
  border-color: var(--border-color) !important;
}

/* Ensure token container content is always readable */
.token-container {
  color: var(--text-primary) !important;
}

/* Ensure detailBodyContent displays HTML content correctly in dark/light mode */
#detailBodyContent {
  color: var(--text-primary) !important;
  color-scheme: light;
}

[data-theme="dark"] #detailBodyContent {
  color-scheme: dark;
}

/* Fix input placeholder color visibility in both dark and light modes */
::placeholder {
  color: var(--text-muted) !important;
  opacity: 0.8 !important;
}

:-ms-input-placeholder {
  color: var(--text-muted) !important;
}

::-ms-input-placeholder {
  color: var(--text-muted) !important;
}