/* styles.css - Design System & UI Stylesheet for AI Hành Chính */

:root {
  /* Light Theme Variables */
  --bg-primary: #f3f4f6;
  --bg-secondary: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.75);
  --border-color: rgba(229, 231, 235, 0.8);
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #dbeafe;
  --accent-color: #4f46e5;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-glow: 0 0 15px rgba(37, 99, 235, 0.2);
  --sidebar-width: 380px;
  --copilot-width: 360px;
  --transition-speed: 0.25s;

  /* Fonts */
  --font-ui: 'Outfit', 'Inter', sans-serif;
  --font-document: 'Times New Roman', Times, serif;
}

[data-theme="dark"] {
  /* Dark Theme Variables */
  --bg-primary: #0b0f19;
  --bg-secondary: #131b2e;
  --bg-glass: rgba(19, 27, 46, 0.75);
  --border-color: rgba(255, 255, 255, 0.08);
  --text-primary: #f9fafb;
  --text-secondary: #d1d5db;
  --text-muted: #6b7280;
  --primary-light: rgba(37, 99, 235, 0.15);
  --shadow-glow: 0 0 20px rgba(37, 99, 235, 0.35);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.3), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
}

/* Reset and Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-ui);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  transition: background-color var(--transition-speed), color var(--transition-speed);
  line-height: 1.5;
  height: 100vh;
  width: 100vw;
}

/* App Layout */
.app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
}

.main-layout {
  display: flex;
  flex: 1;
  width: 100%;
  overflow: hidden;
  position: relative;
}

/* Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 9999px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Glassmorphism Panel */
.glass-panel {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
}

/* Layout Panels */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  height: 70px;
  width: 100%;
  z-index: 100;
  flex-shrink: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  font-size: 2rem;
  line-height: 1;
}

.brand-title {
  font-size: 1.15rem;
  font-weight: 800;
  letterSpacing: -0.025em;
  color: var(--text-primary);
  line-height: 1.2;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 400;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-divider {
  width: 1px;
  height: 24px;
  backgroundColor: var(--border-color);
  margin: 0 4px;
}

/* Sidebar Panel */
.sidebar-panel {
  width: var(--sidebar-width);
  height: 100%;
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  z-index: 10;
  flex-shrink: 0;
  overflow: hidden;
}

.sidebar-section {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.search-container {
  position: relative;
  width: 100%;
}

.search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  width: 16px;
  height: 16px;
}

/* Template select dropdown */
.template-select-dropdown {
  position: relative;
  width: 100%;
}

.dropdown-trigger-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 10px 12px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  outline: none;
  text-align: left;
}

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

.trigger-content {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.trigger-content i, .trigger-content svg {
  color: var(--primary-color) !important;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.chevron-icon {
  width: 14px;
  height: 14px;
  color: var(--text-muted);
  transition: transform 0.2s ease;
  flex-shrink: 0;
  margin-left: 8px;
}

.template-select-dropdown.open .chevron-icon {
  transform: rotate(180deg);
}

.template-select-dropdown.open .dropdown-panel {
  display: flex;
}

.dropdown-panel {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  z-index: 50;
  display: none;
  flex-direction: column;
  max-height: 380px;
  overflow: hidden;
}

.dropdown-search-wrapper {
  position: relative;
  width: 100%;
  padding: 8px;
  border-bottom: 1px solid var(--border-color);
}

.dropdown-search-wrapper .search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  width: 14px;
  height: 14px;
}

.dropdown-panel .template-list {
  max-height: 280px;
  overflow-y: auto;
  padding: 4px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.dropdown-panel .template-item {
  border: none;
  border-radius: 6px;
  margin-bottom: 0px;
  padding: 8px 10px;
}

.dropdown-panel .template-item:hover {
  background-color: var(--bg-primary);
}

.dropdown-panel .template-item.active {
  background-color: var(--primary-light) !important;
}

.section-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.template-list {
  display: flex;
  flex-direction: column;
  gap: 5px;
  max-height: 260px;
  overflow-y: auto;
  padding-right: 4px;
}

/* Template Item Buttons */
.template-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background-color: transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  outline: none;
  width: 100%;
}

.template-item:hover {
  background-color: rgba(37, 99, 235, 0.04);
  border-color: var(--primary-color);
}

.template-item.active {
  background-color: var(--primary-light) !important;
  border-color: var(--primary-color) !important;
}

.template-badge {
  font-size: 0.7rem;
  background-color: var(--border-color);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--text-secondary);
}

.form-fields-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-right: 4px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.form-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
}

/* AI Panel inside Sidebar */
.ai-generator-panel {
  margin-top: 1.25rem;
  padding: 12px;
  border-radius: 8px;
  background-color: rgba(37, 99, 235, 0.04);
  border: 1px dashed rgba(37, 99, 235, 0.25);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ai-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Main Workspace Canvas */
.editor-container {
  flex: 1;
  height: 100%;
  overflow: auto;
  padding: 2.5rem 1.5rem;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  background-color: var(--bg-primary);
  position: relative;
}

.editor-actions-bar {
  position: absolute;
  top: 12px;
  right: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  z-index: 50;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
  padding: 3rem;
  border-radius: 16px;
  border: 2px dashed var(--border-color);
  background-color: var(--bg-glass);
  backdrop-filter: blur(10px);
  max-width: 420px;
  box-shadow: var(--shadow-md);
  margin-top: 4rem;
}

.empty-state h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

.empty-state p {
  font-size: 0.875rem;
  color: var(--text-muted);
  max-width: 280px;
  margin-top: 4px;
}

/* Copilot Panel */
.copilot-panel {
  width: var(--copilot-width);
  height: 100%;
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  z-index: 10;
  flex-shrink: 0;
  transition: transform var(--transition-speed), width var(--transition-speed);
}

.copilot-panel.collapsed {
  width: 0;
  transform: translateX(100%);
  border-left: none;
}

.copilot-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 1.25rem;
  border-bottom: 1px solid var(--border-color);
}

.selection-quick-tools {
  padding: 12px 20px;
  background-color: rgba(37, 99, 235, 0.03);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.selection-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-primary);
}

.selection-snippet {
  font-size: 0.75rem;
  font-style: italic;
  color: var(--text-secondary);
  background-color: var(--bg-secondary);
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

.action-buttons-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}

.btn-quick-action {
  padding: 6px 2px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 0.7rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  outline: none;
}

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

.apply-suggestion-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 4px;
  padding-top: 6px;
  border-top: 1px dashed var(--border-color);
}

.no-selection-tip {
  padding: 10px 20px;
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  border-bottom: 1px solid var(--border-color);
}

.chat-messages-container {
  flex: 1;
  padding: 1.25rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chat-bubble-wrapper {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  max-width: 90%;
  animation: fadeIn 0.2s ease forwards;
}

.chat-bubble-wrapper.user {
  align-self: flex-end;
  justify-content: flex-end;
}

.chat-bubble-wrapper.ai {
  align-self: flex-start;
  justify-content: flex-start;
}

.ai-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--primary-light);
  border: 1px solid var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.chat-bubble {
  padding: 10px 12px;
  border-radius: 12px;
  font-size: 0.825rem;
  line-height: 1.4;
  word-break: break-word;
}

.chat-bubble-wrapper.user .chat-bubble {
  background-color: var(--primary-color);
  color: white;
  border-bottom-right-radius: 2px;
}

.chat-bubble-wrapper.ai .chat-bubble {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  border-bottom-left-radius: 2px;
  border: 1px solid var(--border-color);
}

.chips-container {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 0 1.25rem 8px 1.25rem;
  white-space: nowrap;
  scrollbar-width: none;
}

.chips-container::-webkit-scrollbar {
  display: none;
}

.suggestion-chip {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 0.7rem;
  cursor: pointer;
  transition: all 0.2s;
  outline: none;
}

.suggestion-chip:hover {
  background-color: var(--primary-light);
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.chat-input-form {
  display: flex;
  gap: 8px;
  padding: 1.25rem;
  border-top: 1px solid var(--border-color);
  align-items: center;
}

/* Button & Form Controls */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border-radius: 0.5rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: var(--font-ui);
  border: 1px solid transparent;
}

.btn svg, .btn i {
  width: 16px;
  height: 16px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  opacity: 0.95;
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
}

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

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

.btn-icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  transition: all 0.2s;
}

.btn-icon svg, .btn-icon i {
  width: 18px;
  height: 18px;
}

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

.input-field {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 0.875rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.input-field:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* Modals */
.settings-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  zIndex: 9999;
  backdrop-filter: blur(4px);
}

.modal-card {
  width: 100%;
  max-width: 480px;
  border-radius: 16px;
  padding: 1.75rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  color: var(--text-primary);
}

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

.settings-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.help-text {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.settings-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
}

.alert-panel {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 6px;
  background-color: rgba(245, 158, 11, 0.08);
  border: 1px solid rgba(245, 158, 11, 0.2);
  margin-top: 8px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
  margin-top: 0.5rem;
}

/* Loading overlay */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
}

.loader-card {
  width: 320px;
  padding: 2rem;
  border-radius: 16px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.spinner {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
}

.progress-bar-bg {
  width: 100%;
  height: 6px;
  background-color: var(--border-color);
  border-radius: 999px;
  margin-top: 1.25rem;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background-color: var(--primary-color);
  border-radius: 999px;
  transition: width 0.4s ease;
}

/* Selection tooltip */
.selection-tooltip {
  position: absolute;
  background-color: var(--primary-color);
  color: white;
  padding: 6px 12px;
  border-radius: 6px;
  fontSize: 0.75rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
  pointer-events: none;
  transform: translateX(-50%);
  zIndex: 1000;
  animation: fadeIn 0.15s ease forwards;
}

/* --- A4 Page Simulation Styles --- */
.a4-page {
  width: 210mm;
  min-height: 297mm;
  padding: 25mm 15mm 20mm 30mm; /* Căn lề Nghị định 30: Trên 25, Phải 15, Dưới 20, Trái 30 */
  background-color: #ffffff;
  color: #000000;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
  font-family: var(--font-document);
  font-size: 13pt;
  line-height: 1.35;
  text-align: justify;
  position: relative;
  transition: transform 0.3s ease;
  margin-bottom: 2rem;
  transform-origin: top center;
  box-sizing: border-box;
}

[data-theme="dark"] .a4-page {
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
}

.doc-layout-table {
  width: 100%;
  border-collapse: collapse;
  border: none;
  margin-bottom: 20px;
}

/* Document Table (e.g. Phụ lục) */
table.doc-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 15px;
  margin-bottom: 15px;
  font-family: var(--font-document);
  font-size: 13pt;
  color: #000000 !important;
}
table.doc-table th, table.doc-table td {
  border: 1px solid #000000 !important;
  padding: 6px 8px;
  vertical-align: middle;
}
table.doc-table th {
  font-weight: bold;
  text-align: center;
  background-color: #f3f4f6;
}
[data-theme="dark"] table.doc-table th {
  background-color: #e5e7eb;
}

.doc-layout-td {
  vertical-align: top;
  border: none;
  padding: 0;
  line-height: 1.25;
}

.doc-layout-td.td-left {
  width: 45%;
  text-align: center;
  font-size: 12pt;
}

.doc-layout-td.td-right {
  width: 55%;
  text-align: center;
  font-size: 12pt;
}

.doc-title-area {
  text-align: center;
  margin-top: 30px;
  margin-bottom: 25px;
  line-height: 1.25;
}

.doc-title {
  font-weight: bold;
  text-transform: uppercase;
  font-size: 14pt;
}

.doc-subject {
  font-style: italic;
  font-weight: bold;
  margin-top: 4px;
  font-size: 13pt;
}

.doc-body {
  font-size: 13pt;
  text-align: justify;
}

.doc-body p {
  text-indent: 1.27cm;
  margin-bottom: 10px;
}

.editable-field {
  outline: none;
  border: 1px dashed transparent;
  padding: 2px 4px;
  border-radius: 3px;
  transition: all 0.2s;
}

.editable-field:hover {
  border-color: rgba(37, 99, 235, 0.4);
  background-color: rgba(37, 99, 235, 0.03);
}

.editable-field:focus {
  border-color: var(--primary-color);
  background-color: rgba(37, 99, 235, 0.05);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.3s ease forwards;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 10px rgba(37, 99, 235, 0.2); }
  50% { box-shadow: 0 0 20px rgba(37, 99, 235, 0.4); }
}

.pulse-glow {
  animation: pulse-glow 2s infinite;
}

/* Printing styles */
@media print {
  body {
    background-color: #ffffff !important;
    color: #000000 !important;
  }
  
  .app-container, .main-layout {
    height: auto !important;
    overflow: visible !important;
  }

  .sidebar-panel,
  .copilot-panel,
  header,
  .editor-container::-webkit-scrollbar,
  .editor-actions-bar,
  .settings-modal-backdrop,
  .loading-overlay,
  .selection-tooltip {
    display: none !important;
  }

  .editor-container {
    padding: 0 !important;
    overflow: visible !important;
    background: none !important;
    display: block !important;
  }

  .a4-page {
    box-shadow: none !important;
    margin: 0 !important;
    transform: none !important;
    border: none !important;
    width: 210mm !important;
    height: 297mm !important;
    page-break-after: always;
  }
  
  @page {
    size: A4;
    margin: 0;
  }
}

/* ==========================================================================
   CSS BỔ SUNG: MÀN HÌNH ĐĂNG NHẬP & TỐI ƯU HÓA DROPDOWN CHỌN MẪU VĂN BẢN
   ========================================================================== */

/* Màn hình đăng nhập */
.login-screen-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--bg-primary);
  background-image: radial-gradient(circle at 10% 20%, rgba(37, 99, 235, 0.06) 0%, transparent 40%),
                    radial-gradient(circle at 90% 80%, rgba(79, 70, 229, 0.06) 0%, transparent 40%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100000;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: opacity var(--transition-speed) ease, visibility var(--transition-speed) ease;
}

.login-card {
  width: 100%;
  max-width: 400px;
  padding: 2.25rem 2rem;
  border-radius: 16px;
  box-shadow: var(--shadow-lg), 0 20px 45px rgba(0, 0, 0, 0.25);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  animation: modalEnter 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  background: var(--bg-glass);
}

.login-header {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.login-logo {
  font-size: 3rem;
  line-height: 1;
  margin-bottom: 4px;
}

.login-header h2 {
  font-family: var(--font-ui);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  line-height: 1.2;
}

.login-header p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.login-notice {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 12px;
  border-radius: 8px;
  background-color: var(--primary-light);
  border: 1px solid rgba(37, 99, 235, 0.2);
  font-size: 0.75rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

.login-notice strong {
  color: var(--primary-color);
  font-weight: 600;
}

.login-error-message {
  padding: 10px 12px;
  border-radius: 8px;
  background-color: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: var(--danger-color);
  font-size: 0.75rem;
  font-weight: 600;
  text-align: center;
  animation: shake 0.35s ease-in-out;
}

/* Tối ưu hóa Dropdown chọn mẫu biểu */
.template-select-dropdown .dropdown-panel {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  border-radius: 12px;
  overflow: hidden;
  padding: 6px;
}

.template-select-dropdown .dropdown-search-wrapper {
  padding: 8px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 6px;
}

.template-select-dropdown .dropdown-search-wrapper .input-field {
  height: 36px;
  font-size: 0.8rem;
  border-radius: 6px;
}

.template-select-dropdown .template-list {
  max-height: 320px;
  padding: 2px;
  gap: 4px;
}

.template-select-dropdown .template-item {
  border: 1px solid transparent;
  padding: 8px 10px;
  border-radius: 8px;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: transparent;
}

.template-select-dropdown .template-item:hover {
  background-color: var(--bg-primary);
  border-color: var(--border-color);
  transform: translateX(2px);
}

.template-select-dropdown .template-item.active {
  background-color: var(--primary-light) !important;
  border-color: var(--primary-color) !important;
}

/* Keyframes */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-4px); }
  40%, 80% { transform: translateX(4px); }
}

@keyframes modalEnter {
  from { opacity: 0; transform: scale(0.96) translateY(12px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

/* Sidebar login and user boxes */
.sidebar-login-box {
  padding: 14px 16px;
  background-color: rgba(245, 158, 11, 0.04);
  border-bottom: 1px solid var(--border-color);
  border-left: 3px solid var(--warning-color);
}

.sidebar-login-header {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 4px;
}

.sidebar-user-box {
  padding: 10px 16px;
  background-color: rgba(16, 185, 129, 0.04);
  border-bottom: 1px solid var(--border-color);
  border-left: 3px solid var(--success-color);
}

/* Textarea container and expand button */
.textarea-wrapper {
  position: relative;
  width: 100%;
}

.textarea-wrapper textarea.input-field {
  padding-right: 36px !important;
}

.textarea-expand-btn {
  position: absolute;
  bottom: 8px;
  right: 8px;
  width: 26px;
  height: 26px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0.6;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  outline: none;
  padding: 0;
  z-index: 5;
}

.textarea-expand-btn:hover {
  opacity: 1;
  color: var(--primary-color);
  border-color: var(--primary-color);
  background-color: var(--primary-light);
  transform: scale(1.05);
}

.textarea-expand-btn i, .textarea-expand-btn svg {
  width: 12px;
  height: 12px;
}

.textarea-expand-btn:disabled {
  cursor: not-allowed;
  opacity: 0.3 !important;
}