:root{
  --brand-red: #C8102E;
  --brand-dark: #222222;
  --accent-green: #2E7D32;
  --accent-yellow: #FFD600;
  
  /* Bootstrap custom properties override */
  --bs-primary: var(--brand-red);
  --bs-primary-rgb: 200, 16, 46;
}

/* Primary button color override (follows global primary color) */
.btn-primary {
  --bs-btn-bg: var(--global-primary-color, #2a6c8a);
  --bs-btn-border-color: var(--global-primary-color, #2a6c8a);
  --bs-btn-hover-bg: var(--global-primary-color, #2a6c8a);
  --bs-btn-hover-border-color: var(--global-primary-color, #2a6c8a);
}

/* Outline primary button uses global secondary color */
.btn-outline-primary {
  --bs-btn-color: var(--global-secondary-color, #ffed00);
  --bs-btn-border-color: var(--global-secondary-color, #ffed00);
  --bs-btn-hover-color: #000;
  --bs-btn-hover-bg: var(--global-secondary-color, #ffed00);
  --bs-btn-hover-border-color: var(--global-secondary-color, #ffed00);
}

/* Success button uses global secondary color (e.g. upload button) */
.btn-success {
  --bs-btn-bg: var(--global-secondary-color, #ffed00);
  --bs-btn-border-color: var(--global-secondary-color, #ffed00);
  --bs-btn-hover-bg: var(--global-secondary-color, #ffed00);
  --bs-btn-hover-border-color: var(--global-secondary-color, #ffed00);
  --bs-btn-color: #000;
}

/* Minimal brand customizations */
body {
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 15px;
}

.login-page {
  margin: 0;
  padding: 0;
}

.login-container {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
}

.login-form-wrapper {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 500px;
  padding: 2rem;
}

@media (max-width: 768px) {
  .login-form-wrapper {
    padding: 1rem;
    max-width: 100%;
  }
}

.login-card {
  background: rgba(255, 255, 255, 0.01);
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  border-radius: 12px;
  overflow: hidden;
}

.login-card-header {
  background: linear-gradient(135deg,
    var(--global-primary-color, #2a6c8a) 0%,
    var(--global-secondary-color, #ffed00) 100%);
  color: #fff;
  padding: 2rem;
  text-align: center;
  border-bottom: 3px solid var(--global-secondary-color, #ffed00);
}

.login-card-header h3 {
  margin: 0;
  font-size: 1.8rem;
  font-weight: 600;
  letter-spacing: -0.5px;
}

.login-card-body {
  padding: 2rem;
}

.navbar-brand { 
  font-weight: 600; 
  color: var(--brand-red) !important; 
  display: flex; 
  align-items: center; 
  gap: 8px; 
}

.navbar-brand img {
  max-height: 40px;
  height: 40px;
  width: auto;
}

.navbar-brand-logo {
  max-height: 40px;
  max-width: 200px;
}

.navbar {
  --nav-module-color: var(--module-set);
  --nav-primary: var(--nav-module-color);
  --nav-secondary: var(--module-set);
  background-color: #e9ecef !important;
  border-bottom: 1px solid #919191 !important;
}

/* Top navbar links use nav/global primary color */
.navbar .nav-link {
  color: var(--nav-primary, var(--global-primary-color, #2a6c8a)) !important;
}

/* ── BT Module Selector Dropdown ── */
.bt-module-selector > .nav-link {
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  padding-left: 0.75rem;
  padding-right: 0.75rem;
  white-space: nowrap;
}

.bt-module-selector .dropdown-menu {
  min-width: 220px;
  border-radius: 0.5rem;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  border: 1px solid rgba(0,0,0,0.08);
  padding: 0.35rem 0;
}

.bt-module-selector .dropdown-item {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  border-radius: 0.25rem;
  margin: 0.1rem 0.35rem;
  width: auto;
}

.bt-module-selector .dropdown-item.active {
  background-color: var(--nav-primary, var(--global-primary-color, #2a6c8a));
  color: #fff;
}

.bt-module-selector .dropdown-item:not(.active):hover {
  background-color: rgba(0,0,0,0.05);
}

/* Vertical separator between module selector and sub-nav */
.bt-nav-separator > span {
  display: block;
  width: 1px;
  height: 20px;
  background-color: rgba(0,0,0,0.2);
  margin: 0 0.25rem;
}

/* Sub-nav items: slightly smaller, compact */
.bt-subnav-item > .nav-link {
  font-size: 0.85rem;
  padding: 0.35rem 0.55rem;
  white-space: nowrap;
}

/* Footer styling */
.footer,
.global-footer,
footer {
  background-color: #e9ecef !important;
  border-top: 1px solid #919191 !important;
}

.navbar[data-module="UM"] {
  --nav-module-color: var(--module-um);
}
.navbar[data-module="SET"] {
  --nav-module-color: var(--module-set);
}

@media (min-width: 992px) {
  .navbar .nav-link:hover,
  .navbar .nav-link:focus,
  .navbar .nav-link.active {
    background-color: var(--nav-primary, var(--nav-module-color));
    color: #fff !important;
    border-radius: .25rem;
  }

  /* Keep module selector dropdown toggle always styled even when active */
  .bt-module-selector > .nav-link.dropdown-toggle:hover,
  .bt-module-selector > .nav-link.dropdown-toggle:focus {
    background-color: var(--nav-primary, var(--nav-module-color));
    color: #fff !important;
  }

  .navbar .dropdown-menu .dropdown-item:hover,
  .navbar .dropdown-menu .dropdown-item:focus {
    background-color: var(--nav-primary, var(--nav-module-color));
    color: #fff !important;
  }
}

/* Mobile: BT sub-nav items stack neatly */
@media (max-width: 991px) {
  .bt-subnav-item > .nav-link {
    font-size: 0.9rem;
    padding: 0.4rem 0.75rem;
    border-left: 3px solid transparent;
  }
  .bt-subnav-item > .nav-link.active {
    border-left-color: var(--nav-primary, var(--global-primary-color, #2a6c8a));
    background-color: rgba(0,0,0,0.04);
    font-weight: 600;
  }
  .bt-nav-separator {
    display: none !important;
  }
}

/* Module subnav pills in module colors */
.module-subnav .nav-pills .nav-link {
  color: var(--nav-primary, var(--nav-module-color)) !important;
}
.module-subnav .nav-pills .nav-link:hover,
.module-subnav .nav-pills .nav-link:focus,
.module-subnav .nav-pills .nav-link.active {
  background-color: var(--nav-primary, var(--nav-module-color));
  color: #fff !important;
}

.page-header { 
  padding: 0.75rem 0; 
  border-bottom: 1px solid rgba(0,0,0,0.04); 
  margin-bottom: 1rem; 
}

/* Module subnav background uses module colors */
.module-subnav {
  background-color: var(--nav-bg, #f8f9fa);
  border-bottom: 1px solid var(--nav-border, #dee2e6);
}

/* GridStack Integration */
.grid-stack {
  background: transparent;
}

.grid-stack-item-content {
  overflow: visible !important;
}

.grid-stack .card {
  height: 100%;
  margin: 0;
}

.grid-stack .card-body {
  overflow-y: auto;
}

/* Fix modal z-index above GridStack */
.modal-backdrop {
  z-index: 1040 !important;
}

#widgetModal {
  z-index: 1050 !important;
}

/* Mobile GridStack Optimizations */
@media (max-width: 768px) {
  /* Hide RSS feed widgets on mobile */
  .grid-stack-item[gs-id^="rss-"] {
    display: none !important;
  }
  
  /* Make all module widgets full width */
  .grid-stack-item:not([gs-id^="rss-"]) {
    width: 100% !important;
    left: 0 !important;
  }
  
  /* Adjust card height for mobile */
  .grid-stack-item .card {
    min-height: auto;
  }
  
  /* Hide edit controls on mobile */
  #toggleEditMode {
    display: none !important;
  }
  
  /* Smaller cards on mobile */
  .grid-stack {
    margin: 0 -0.5rem;
  }
  
  .grid-stack-item {
    margin-bottom: 1rem;
  }
}

/* ══════════════════════════════════════════
   BT Utility Classes (extracted from inline)
   ══════════════════════════════════════════ */

/* --- Font Size Utilities --- */
.fs-050 { font-size: 0.5rem; }
.fs-065 { font-size: 0.65rem; }
.fs-070 { font-size: 0.7rem; }
.fs-075 { font-size: 0.75rem; }
.fs-080 { font-size: 0.8rem; }
.fs-085 { font-size: 0.85rem; }
.fs-090 { font-size: 0.9rem; }
.fs-110 { font-size: 1.1rem; }
.fs-120 { font-size: 1.2rem; }
.fs-150 { font-size: 1.5rem; }
.fs-icon-lg { font-size: 2rem; }
.fs-icon-xl { font-size: 3rem; }

/* --- Cursor --- */
.cursor-pointer { cursor: pointer; }
.cursor-crosshair { cursor: crosshair; }

/* --- Container Max-Widths --- */
.mw-300 { max-width: 300px; }
.mw-500 { max-width: 500px; }
.mw-550 { max-width: 550px; }
.mw-600 { max-width: 600px; }
.mw-650 { max-width: 650px; }
.mw-700 { max-width: 700px; }
.mw-750 { max-width: 750px; }
.mw-900 { max-width: 900px; }

/* --- Column Widths (for table headers) --- */
.w-col-40px { width: 40px; }
.w-col-50  { width: 50px; }
.w-col-60  { width: 60px; }
.w-col-80  { width: 80px; }
.w-col-100 { width: 100px; }
.w-col-110 { width: 110px; }
.w-col-120 { width: 120px; }
.w-col-130 { width: 130px; }
.w-col-140 { width: 140px; }
.w-col-40pct { width: 40%; }

/* --- KPI Icon Backgrounds --- */
.kpi-bg-primary { background: rgba(22,105,135,0.1); }
.kpi-bg-accent  { background: rgba(46,196,182,0.1); }
.kpi-bg-warning { background: rgba(255,193,7,0.1); }
.kpi-bg-danger  { background: rgba(220,53,69,0.1); }
.kpi-bg-success { background: rgba(25,135,84,0.1); }

/* --- KPI Icon Colors --- */
.kpi-icon-primary { color: #166987; font-size: 1.5rem; }
.kpi-icon-accent  { color: #2ec4b6; font-size: 1.5rem; }
.kpi-icon-warning { color: #b35900; font-size: 1.5rem; }
.kpi-icon-danger  { color: #dc3545; font-size: 1.5rem; }
.kpi-icon-success { color: #198754; font-size: 1.5rem; }

/* --- Button Variants --- */
.btn-purple {
  background-color: #6f42c1;
  color: #fff;
  border-color: #6f42c1;
}
.btn-purple:hover,
.btn-purple:focus {
  background-color: #5a32a3;
  border-color: #5a32a3;
  color: #fff;
}

/* --- Breadcrumb Hero (light text on dark bg) --- */
.breadcrumb-hero {
  --bs-breadcrumb-divider-color: rgba(255,255,255,0.5);
  --bs-breadcrumb-item-active-color: #fff;
}

/* --- Autocomplete Dropdown (list-group based) --- */
.autocomplete-dropdown {
  z-index: 1060;
  max-height: 240px;
  overflow-y: auto;
}

/* --- Iframe / Media Embeds --- */
.iframe-embed {
  min-height: 500px;
  border: 0;
}
.img-preview-lg {
  max-width: 100%;
  max-height: 70vh;
  border-radius: 8px;
}
.img-preview-md {
  max-height: 300px;
  object-fit: cover;
}

/* --- Card Rounded Large --- */
.card-rounded-lg {
  border-radius: 1rem;
  overflow: hidden;
}

/* --- Fault Position Marker --- */
.fault-marker {
  position: absolute;
  width: 24px;
  height: 24px;
  background: rgba(220,53,69,0.9);
  border: 3px solid #fff;
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
  transform: translate(-50%,-50%);
  pointer-events: none;
}

/* --- Skizze Upload Dropzone --- */
.upload-dropzone {
  position: relative;
  text-align: center;
  background: #f8f9fa;
  border: 2px dashed #dee2e6;
  border-radius: 8px;
  padding: 15px;
  min-height: 80px;
}

/* --- Text Truncate Cell --- */
.cell-truncate {
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* --- Z-Index Utilities --- */
.z-toast { z-index: 1100; }