/* =============================================================================
   HUB CRM Application - Main Stylesheet
   Clean, Modern Business Design with Responsive Layout
   ============================================================================= */

/* ============================================================================
   1. CSS VARIABLES & ROOT
   ============================================================================ */

:root {
  /* Colors - Primary Palette */
  --color-primary: #2B5797;
  --color-secondary: #E67E22;
  --color-success: #27AE60;
  --color-danger: #C0392B;
  --color-warning: #F39C12;
  --color-info: #3498DB;
  --color-purple: #8E44AD;

  /* Grayscale */
  --color-gray-50: #F9FAFB;
  --color-gray-100: #F3F4F6;
  --color-gray-200: #E5E7EB;
  --color-gray-300: #D1D5DB;
  --color-gray-400: #9CA3AF;
  --color-gray-500: #6B7280;
  --color-gray-600: #4B5563;
  --color-gray-700: #374151;
  --color-gray-800: #1F2937;
  --color-gray-900: #111827;

  /* Semantic Colors */
  --color-bg-primary: #FFFFFF;
  --color-bg-secondary: #F5F7FA;
  --color-text-primary: #1F2937;
  --color-text-secondary: #6B7280;
  --color-text-light: #9CA3AF;
  --color-border: #E5E7EB;

  /* Sidebar */
  --sidebar-bg: #1A2332;
  --sidebar-text: #E5E7EB;
  --sidebar-text-hover: #FFFFFF;
  --sidebar-width: 240px;

  /* Topbar */
  --topbar-height: 64px;
  --topbar-bg: #FFFFFF;

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-size-sm: 12px;
  --font-size-base: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 24px;
  --font-size-3xl: 32px;

  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Spacing Grid (8px) */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;

  /* Z-Index Scale */
  --z-dropdown: 1000;
  --z-modal-overlay: 1040;
  --z-modal: 1050;
  --z-tooltip: 1070;
  --z-notification: 1080;
}

/* ============================================================================
   2. RESET & BASE STYLES
   ============================================================================ */

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

*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-secondary);
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }
h5 { font-size: var(--font-size-base); }
h6 { font-size: var(--font-size-sm); }

p {
  margin: 0;
  line-height: var(--line-height-normal);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: #1e4073;
  text-decoration: underline;
}

ul, ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* ============================================================================
   3. APP LAYOUT - MAIN CONTAINER
   ============================================================================ */

.app-container {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

.app-container.sidebar-collapsed {
  --sidebar-width: 60px;
}

/* ============================================================================
   4. SIDEBAR NAVIGATION
   ============================================================================ */

.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background-color: var(--sidebar-bg);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  z-index: 999;
  transition: width var(--transition-base);
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar::-webkit-scrollbar {
  width: 4px;
}

.sidebar::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
}

.sidebar::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

.sidebar-logo {
  padding: var(--spacing-lg) var(--spacing-md);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  height: 80px;
  flex-shrink: 0;
}

.sidebar-logo h1 {
  font-size: var(--font-size-2xl);
  color: #FFFFFF;
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.5px;
}

.sidebar-logo-icon {
  width: 32px;
  height: 32px;
  margin-right: var(--spacing-sm);
  background-color: var(--color-primary);
  border-radius: var(--radius-md);
}

.app-container.sidebar-collapsed .sidebar-logo h1 {
  display: none;
}

.sidebar-nav {
  flex: 1;
  padding: var(--spacing-md) 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.nav-item {
  display: flex;
  align-items: center;
  height: 44px;
  padding: 0 var(--spacing-md);
  color: var(--sidebar-text);
  transition: all var(--transition-fast);
  position: relative;
  cursor: pointer;
  border-left: 3px solid transparent;
  gap: var(--spacing-md);
}

.nav-item:hover {
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--sidebar-text-hover);
}

.nav-item.active {
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--sidebar-text-hover);
  border-left-color: var(--color-primary);
}

.nav-item-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: var(--font-size-lg);
}

.nav-item-label {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  white-space: nowrap;
}

.app-container.sidebar-collapsed .nav-item-label {
  display: none;
}

.sidebar-footer {
  padding: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  flex-shrink: 0;
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.sidebar-user:hover {
  background-color: rgba(255, 255, 255, 0.05);
}

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

.app-container.sidebar-collapsed .sidebar-user {
  padding: var(--spacing-xs);
  justify-content: center;
}

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

.app-container.sidebar-collapsed .sidebar-user-info {
  display: none;
}

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

.sidebar-user-status {
  font-size: 11px;
  color: var(--color-gray-400);
  white-space: nowrap;
}

/* ============================================================================
   5. TOPBAR
   ============================================================================ */

.topbar {
  position: fixed;
  top: 0;
  left: var(--sidebar-width);
  right: 0;
  height: var(--topbar-height);
  background-color: var(--topbar-bg);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-lg);
  z-index: 998;
  transition: left var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.app-container.sidebar-collapsed .topbar {
  left: var(--sidebar-width);
}

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

.sidebar-toggle {
  background: none;
  border: none;
  color: var(--color-text-primary);
  font-size: var(--font-size-lg);
  cursor: pointer;
  padding: var(--spacing-sm);
  margin: calc(var(--spacing-sm) * -1);
  transition: color var(--transition-fast);
}

.sidebar-toggle:hover {
  color: var(--color-primary);
}

.topbar-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.topbar-center {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex: 1;
  max-width: 400px;
  margin: 0 auto;
}

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

.topbar-icon-button {
  background: none;
  border: none;
  color: var(--color-text-primary);
  font-size: var(--font-size-lg);
  cursor: pointer;
  padding: var(--spacing-sm);
  margin: calc(var(--spacing-sm) * -1);
  transition: color var(--transition-fast);
  position: relative;
}

.topbar-icon-button:hover {
  color: var(--color-primary);
}

.topbar-badge {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 18px;
  height: 18px;
  background-color: var(--color-danger);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: var(--font-weight-bold);
}

.tenant-selector {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 40px;
}

.tenant-selector:hover {
  border-color: var(--color-primary);
  background-color: #FFFFFF;
}

.tenant-badge {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 11px;
  font-weight: var(--font-weight-bold);
  flex-shrink: 0;
}

.tenant-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  white-space: nowrap;
}

/* ============================================================================
   6. MAIN CONTENT AREA
   ============================================================================ */

.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  margin-top: var(--topbar-height);
  overflow-y: auto;
  overflow-x: hidden;
  background-color: var(--color-bg-secondary);
  transition: margin-left var(--transition-base);
}

.main-content::-webkit-scrollbar {
  width: 8px;
}

.main-content::-webkit-scrollbar-track {
  background: transparent;
}

.main-content::-webkit-scrollbar-thumb {
  background: var(--color-gray-300);
  border-radius: var(--radius-md);
}

.main-content::-webkit-scrollbar-thumb:hover {
  background: var(--color-gray-400);
}

.page-container {
  padding: var(--spacing-lg);
  max-width: 1600px;
  margin: 0 auto;
}

.page-header {
  margin-bottom: var(--spacing-xl);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.page-title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

.page-subtitle {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-top: var(--spacing-sm);
}

/* ============================================================================
   7. CARDS & PANELS
   ============================================================================ */

.card {
  background-color: var(--topbar-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
  overflow: hidden;
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-gray-300);
}

.card-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg-secondary);
}

.card-header h3 {
  margin: 0;
  font-size: var(--font-size-lg);
}

.card-body {
  padding: var(--spacing-lg);
}

.card-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  background-color: var(--color-bg-secondary);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-md);
}

.card-compact {
  padding: var(--spacing-md);
}

.card-compact .card-header {
  padding: var(--spacing-md);
}

.card-compact .card-body {
  padding: var(--spacing-md);
}

/* ============================================================================
   8. FORMS
   ============================================================================ */

.form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: var(--spacing-lg);
  gap: var(--spacing-sm);
}

.form-group.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.form-group.form-row.three-col {
  grid-template-columns: repeat(3, 1fr);
}

.form-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.form-label.required::after {
  content: '*';
  color: var(--color-danger);
}

.form-hint {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-top: calc(var(--spacing-sm) * -0.5);
}

.form-input,
.form-select,
.form-textarea {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  background-color: #FFFFFF;
  transition: all var(--transition-fast);
  min-height: 40px;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-light);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(43, 87, 151, 0.1);
  background-color: #FFFFFF;
}

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
  background-color: var(--color-gray-50);
  color: var(--color-text-light);
  cursor: not-allowed;
}

.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: var(--color-danger);
}

.form-input.error:focus,
.form-select.error:focus,
.form-textarea.error:focus {
  box-shadow: 0 0 0 3px rgba(192, 57, 43, 0.1);
}

.form-error {
  font-size: 12px;
  color: var(--color-danger);
  margin-top: calc(var(--spacing-sm) * -0.5);
}

.form-textarea {
  min-height: 120px;
  padding: var(--spacing-md);
  resize: vertical;
}

/* ============================================================================
   9. BUTTONS
   ============================================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  min-height: 40px;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Button Variants */
.btn-primary {
  background-color: var(--color-primary);
  color: #FFFFFF;
}

.btn-primary:hover:not(:disabled) {
  background-color: #1e4073;
  box-shadow: var(--shadow-md);
}

.btn-primary:active:not(:disabled) {
  background-color: #163052;
  transform: translateY(1px);
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: #FFFFFF;
}

.btn-secondary:hover:not(:disabled) {
  background-color: #D35400;
  box-shadow: var(--shadow-md);
}

.btn-secondary:active:not(:disabled) {
  background-color: #BA4A00;
  transform: translateY(1px);
}

.btn-success {
  background-color: var(--color-success);
  color: #FFFFFF;
}

.btn-success:hover:not(:disabled) {
  background-color: #229954;
  box-shadow: var(--shadow-md);
}

.btn-danger {
  background-color: var(--color-danger);
  color: #FFFFFF;
}

.btn-danger:hover:not(:disabled) {
  background-color: #A93226;
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
}

.btn-outline:hover:not(:disabled) {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: var(--color-gray-50);
}

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

.btn-ghost:hover:not(:disabled) {
  background-color: var(--color-gray-50);
}

/* Button Sizes */
.btn-sm {
  padding: 4px 12px;
  font-size: 12px;
  min-height: 32px;
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: var(--font-size-lg);
  min-height: 48px;
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-icon.btn-sm {
  width: 32px;
  height: 32px;
}

.btn-block {
  width: 100%;
  display: flex;
}

.btn-group {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

/* ============================================================================
   10. QUICK-LOG ACTION BAR
   ============================================================================ */

.quick-log-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.quick-log-btn {
  background-color: #FFFFFF;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 140px;
  text-align: center;
}

.quick-log-btn:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.quick-log-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: #FFFFFF;
}

.quick-log-btn.message .quick-log-icon {
  background-color: var(--color-primary);
}

.quick-log-btn.call .quick-log-icon {
  background-color: var(--color-success);
}

.quick-log-btn.video .quick-log-icon {
  background-color: var(--color-secondary);
}

.quick-log-btn.note .quick-log-icon {
  background-color: var(--color-gray-500);
}

.quick-log-label {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

/* ============================================================================
   11. TABLES
   ============================================================================ */

.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  background-color: #FFFFFF;
}

.data-table thead {
  background-color: var(--color-gray-50);
  border-bottom: 1px solid var(--color-border);
}

.data-table th {
  padding: var(--spacing-md) var(--spacing-lg);
  text-align: left;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  white-space: nowrap;
  user-select: none;
}

.data-table tbody tr {
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-fast);
}

.data-table tbody tr:hover {
  background-color: var(--color-gray-50);
}

.data-table tbody tr.active {
  background-color: rgba(43, 87, 151, 0.05);
}

.data-table td {
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
}

.data-table .checkbox {
  width: 20px;
  height: 20px;
}

.table-actions {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: flex-end;
}

/* ============================================================================
   12. COMMUNICATION TIMELINE
   ============================================================================ */

.timeline {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.timeline-item {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background-color: #FFFFFF;
  border-left: 4px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

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

.timeline-item.message {
  border-left-color: var(--color-primary);
}

.timeline-item.call {
  border-left-color: var(--color-success);
}

.timeline-item.email {
  border-left-color: var(--color-info);
}

.timeline-item.note {
  border-left-color: var(--color-warning);
}

.timeline-item.video {
  border-left-color: var(--color-secondary);
}

.timeline-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  font-size: var(--font-size-base);
  flex-shrink: 0;
  font-weight: var(--font-weight-bold);
}

.timeline-item.message .timeline-icon {
  background-color: var(--color-primary);
}

.timeline-item.call .timeline-icon {
  background-color: var(--color-success);
}

.timeline-item.email .timeline-icon {
  background-color: var(--color-info);
}

.timeline-item.note .timeline-icon {
  background-color: var(--color-warning);
}

.timeline-item.video .timeline-icon {
  background-color: var(--color-secondary);
}

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

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: var(--spacing-sm);
}

.timeline-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.timeline-timestamp {
  font-size: 12px;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.timeline-body {
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  line-height: var(--line-height-normal);
}

.timeline-metadata {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-sm);
  font-size: 12px;
  color: var(--color-text-secondary);
}

/* ============================================================================
   13. TAGS & BADGES
   ============================================================================ */

.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: var(--font-weight-medium);
  white-space: nowrap;
  cursor: default;
  user-select: none;
}

.tag-default {
  background-color: var(--color-gray-100);
  color: var(--color-text-primary);
}

.tag-primary {
  background-color: rgba(43, 87, 151, 0.1);
  color: var(--color-primary);
}

.tag-success {
  background-color: rgba(39, 174, 96, 0.1);
  color: var(--color-success);
}

.tag-danger {
  background-color: rgba(192, 57, 43, 0.1);
  color: var(--color-danger);
}

.tag-warning {
  background-color: rgba(243, 156, 18, 0.1);
  color: var(--color-warning);
}

.tag-info {
  background-color: rgba(52, 152, 219, 0.1);
  color: var(--color-info);
}

.tag-removable {
  padding-right: 8px;
  cursor: pointer;
}

.tag-remove-icon {
  width: 14px;
  height: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: var(--font-weight-bold);
  background-color: var(--color-primary);
  color: #FFFFFF;
}

/* ============================================================================
   14. SEARCH & DROPDOWNS
   ============================================================================ */

.search-global {
  position: relative;
  width: 100%;
  max-width: 300px;
}

.search-input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  padding-left: 36px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  transition: all var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(43, 87, 151, 0.1);
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-secondary);
  pointer-events: none;
}

.search-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: var(--spacing-sm);
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-dropdown);
  max-height: 400px;
  overflow-y: auto;
  display: none;
}

.search-results.active {
  display: block;
}

.search-results-section {
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--color-border);
}

.search-results-section:last-child {
  border-bottom: none;
}

.search-results-title {
  padding: 0 var(--spacing-lg);
  font-size: 11px;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  margin-bottom: var(--spacing-sm);
}

.search-result-item {
  padding: var(--spacing-sm) var(--spacing-lg);
  cursor: pointer;
  transition: background-color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.search-result-item:hover {
  background-color: var(--color-gray-50);
}

.search-result-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-gray-100);
  flex-shrink: 0;
}

.search-result-text {
  flex: 1;
  min-width: 0;
}

.search-result-name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.search-result-meta {
  font-size: 12px;
  color: var(--color-text-secondary);
}

/* ============================================================================
   15. MODALS & DIALOGS
   ============================================================================ */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: var(--z-modal-overlay);
  animation: fadeIn var(--transition-base);
  opacity: 0;
  pointer-events: none;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background-color: #FFFFFF;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  z-index: var(--z-modal);
  animation: slideUp var(--transition-base);
  box-shadow: var(--shadow-xl);
}

.modal-overlay.active .modal {
  animation: slideUp var(--transition-base);
}

.modal-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
}

.modal-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.modal-close {
  background: none;
  border: none;
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: var(--spacing-sm);
  margin: calc(var(--spacing-sm) * -1);
  transition: color var(--transition-fast);
}

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

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

.modal-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-md);
  flex-shrink: 0;
}

/* ============================================================================
   16. LOGIN PAGE
   ============================================================================ */

.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, var(--color-primary) 0%, #1e4073 100%);
  padding: var(--spacing-lg);
}

.login-card {
  background-color: #FFFFFF;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 420px;
  padding: var(--spacing-2xl);
}

.login-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.login-logo {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--spacing-lg);
  background-color: var(--color-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  font-size: 32px;
  font-weight: var(--font-weight-bold);
}

.login-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.login-subtitle {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
}

.login-footer {
  text-align: center;
  margin-top: var(--spacing-lg);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.login-footer a {
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
}

/* ============================================================================
   17. DASHBOARD STATS
   ============================================================================ */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.stat-card {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: all var(--transition-fast);
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-gray-300);
  transform: translateY(-2px);
}

.stat-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: var(--spacing-md);
  flex-shrink: 0;
}

.stat-card.primary .stat-card-icon {
  background-color: rgba(43, 87, 151, 0.1);
  color: var(--color-primary);
}

.stat-card.success .stat-card-icon {
  background-color: rgba(39, 174, 96, 0.1);
  color: var(--color-success);
}

.stat-card.warning .stat-card-icon {
  background-color: rgba(243, 156, 18, 0.1);
  color: var(--color-warning);
}

.stat-card.danger .stat-card-icon {
  background-color: rgba(192, 57, 43, 0.1);
  color: var(--color-danger);
}

.stat-card-label {
  font-size: 12px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-sm);
}

.stat-card-value {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.stat-card-change {
  font-size: 12px;
  font-weight: var(--font-weight-medium);
}

.stat-card-change.positive {
  color: var(--color-success);
}

.stat-card-change.negative {
  color: var(--color-danger);
}

/* ============================================================================
   18. UTILITIES
   ============================================================================ */

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

.text-danger {
  color: var(--color-danger);
}

.text-success {
  color: var(--color-success);
}

.text-warning {
  color: var(--color-warning);
}

.text-info {
  color: var(--color-info);
}

.text-primary {
  color: var(--color-primary);
}

.text-small {
  font-size: var(--font-size-sm);
}

.text-bold {
  font-weight: var(--font-weight-bold);
}

.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }
.mb-2xl { margin-bottom: var(--spacing-2xl); }

.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mt-2xl { margin-top: var(--spacing-2xl); }

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

.px-md { padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
.py-md { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }

.hidden {
  display: none !important;
}

.invisible {
  visibility: hidden;
}

.flex {
  display: flex;
}

.flex-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-col {
  display: flex;
  flex-direction: column;
}

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

.w-full {
  width: 100%;
}

.h-full {
  height: 100%;
}

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

.bg-secondary {
  background-color: var(--color-secondary);
}

.bg-gray-50 {
  background-color: var(--color-gray-50);
}

.bg-gray-100 {
  background-color: var(--color-gray-100);
}

.rounded {
  border-radius: var(--radius-md);
}

.rounded-lg {
  border-radius: var(--radius-lg);
}

.shadow {
  box-shadow: var(--shadow-md);
}

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

.border {
  border: 1px solid var(--color-border);
}

.border-t {
  border-top: 1px solid var(--color-border);
}

.border-b {
  border-bottom: 1px solid var(--color-border);
}

/* ============================================================================
   19. ANIMATIONS
   ============================================================================ */

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

@keyframes slideUp {
  from {
    transform: translateY(16px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes slideDown {
  from {
    transform: translateY(-16px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes slideIn {
  from {
    transform: translateX(-16px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

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

.animate-fade-in {
  animation: fadeIn var(--transition-base);
}

.animate-slide-up {
  animation: slideUp var(--transition-base);
}

.animate-slide-down {
  animation: slideDown var(--transition-base);
}

.animate-slide-in {
  animation: slideIn var(--transition-base);
}

.animate-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* ============================================================================
   20. RESPONSIVE DESIGN
   ============================================================================ */

@media (max-width: 1200px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .quick-log-bar {
    grid-template-columns: repeat(2, 1fr);
  }

  .form-group.form-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --sidebar-width: 0;
  }

  .sidebar {
    transform: translateX(-100%);
    z-index: 1000;
    box-shadow: var(--shadow-xl);
  }

  .sidebar.active {
    transform: translateX(0);
  }

  .topbar {
    left: 0;
  }

  .main-content {
    margin-left: 0;
  }

  .sidebar-toggle {
    display: flex;
  }

  .page-container {
    padding: var(--spacing-md);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }

  .quick-log-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }

  .quick-log-btn {
    min-height: 120px;
    padding: var(--spacing-md);
  }

  .quick-log-icon {
    width: 40px;
    height: 40px;
    font-size: 20px;
  }

  .quick-log-label {
    font-size: 12px;
  }

  .table-wrapper {
    max-width: 100%;
  }

  .data-table {
    font-size: 12px;
  }

  .data-table th,
  .data-table td {
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .topbar-right {
    gap: var(--spacing-md);
  }

  .page-header {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .modal {
    max-height: 100vh;
    border-radius: var(--radius-xl);
  }
}

@media (max-width: 480px) {
  .topbar {
    padding: 0 var(--spacing-md);
  }

  .page-title {
    font-size: var(--font-size-2xl);
  }

  .quick-log-bar {
    grid-template-columns: 1fr;
  }

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

  .form-group.form-row.three-col {
    grid-template-columns: 1fr;
  }

  .btn-group {
    flex-direction: column;
  }

  .btn-block {
    width: 100%;
  }

  .modal-footer {
    flex-direction: column;
  }

  .modal-footer .btn {
    width: 100%;
  }

  .search-global {
    max-width: 100%;
  }

  .topbar-center {
    max-width: 100%;
  }

  .topbar-title {
    font-size: var(--font-size-base);
  }
}

/* ============================================================================
   21. PRINT STYLES
   ============================================================================ */

@media print {
  .sidebar,
  .topbar,
  .sidebar-toggle,
  .modal-overlay,
  .btn-icon {
    display: none;
  }

  .main-content {
    margin-left: 0;
    margin-top: 0;
    background-color: #FFFFFF;
  }

  .page-container {
    padding: 0;
    max-width: 100%;
  }

  body {
    background-color: #FFFFFF;
  }
}

/* ============================================================================
   22. INTERNAL COMPANIES — VISUAL MARKER
   ----------------------------------------------------------------------------
   Visualisierung interner Unternehmen (tenant_companies.relation_type='internal').
   Auftrag „Interne Unternehmen — UI-Kennzeichnung" (Vault 2026-05-13). Farbton
   abgeleitet vom Mandant-Mittelblau #5484ED — dezente Pastell-Variante, damit
   intern erkennbar zur „Familie" gehört, ohne wie ein Fehler-/Warnzustand zu
   wirken.
   ============================================================================ */

.company-row-intern {
  background-color: #EEF2FB;   /* Pastell aus #5484ED */
  box-shadow: inset 3px 0 0 #5484ED;
}

.company-row-intern:hover {
  background-color: #E2E9F6;
}

.badge-intern {
  display: inline-block;
  margin-left: 8px;
  padding: 1px 8px;
  border: 1px solid #5484ED;
  border-radius: 999px;
  background-color: #EEF2FB;
  color: #2A4A8E;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.2px;
  vertical-align: middle;
  text-transform: lowercase;
}

/* Mandant-Badge: visuell abgesetzt vom Intern-Badge, dezent grau-blau.
   Auftrag „Beziehungstyp mandant für Unternehmen" (2026-05-15). */
.badge-mandant {
  display: inline-block;
  margin-left: 8px;
  padding: 1px 8px;
  border: 1px solid #6B7280;
  border-radius: 999px;
  background-color: #F3F4F6;
  color: #374151;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.2px;
  vertical-align: middle;
  text-transform: lowercase;
}