/*
 * BLOOMBERG-STYLE BOOTSTRAP OVERRIDE
 * Drop-in CSS to transform Bootstrap 5 into a Bloomberg.com-inspired design
 * Include AFTER bootstrap.css
 * 
 * Design principles:
 * - Text-first, dense, editorial layout
 * - Sharp rectangular edges (no border-radius)
 * - Minimal color palette (black/white/gray)
 * - Frequent 1px dividers
 * - Inter font throughout
 * - No shadows, gradients, or playful UI
 */

/* ============================================
   CSS VARIABLES - Easy Theming
   ============================================ */
:root {
  /* Typography */
  --bb-font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --bb-font-size-base: 14px;
  --bb-font-size-small: 12px;
  --bb-font-size-large: 16px;
  --bb-line-height: 1.45;
  --bb-letter-spacing: -0.01em;
  --bb-letter-spacing-tight: -0.02em;
  
  /* Colors */
  --bb-color-text: #000000;
  --bb-color-text-secondary: #666666;
  --bb-color-text-muted: #999999;
  --bb-color-bg: #ffffff;
  --bb-color-bg-secondary: #f8f8f8;
  --bb-color-bg-tertiary: #f0f0f0;
  
  /* Borders */
  --bb-border-color: #e0e0e0;
  --bb-border-color-dark: #cccccc;
  --bb-border-width: 1px;
  
  /* Interactive */
  --bb-color-link: #0066cc;
  --bb-color-link-hover: #004d99;
  --bb-color-positive: #008800;
  --bb-color-negative: #cc0000;
  --bb-color-neutral: #666666;
  
  /* Spacing - tighter than Bootstrap default */
  --bb-spacing-xs: 4px;
  --bb-spacing-sm: 8px;
  --bb-spacing-md: 12px;
  --bb-spacing-lg: 16px;
  --bb-spacing-xl: 24px;
}

/* ============================================
   GLOBAL TYPOGRAPHY
   ============================================ */
body {
  font-family: var(--bb-font-family) !important;
  font-size: var(--bb-font-size-base);
  line-height: var(--bb-line-height);
  letter-spacing: var(--bb-letter-spacing);
  color: var(--bb-color-text);
  background-color: var(--bb-color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
  font-family: var(--bb-font-family) !important;
  font-weight: 600;
  letter-spacing: var(--bb-letter-spacing-tight);
  color: var(--bb-color-text);
  margin-bottom: var(--bb-spacing-md);
  line-height: 1.2;
}

h1, .h1 { font-size: 28px; font-weight: 700; }
h2, .h2 { font-size: 20px; font-weight: 600; }
h3, .h3 { font-size: 16px; font-weight: 600; }
h4, .h4 { font-size: 14px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.02em; }
h5, .h5 { font-size: 14px; font-weight: 600; }
h6, .h6 { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.03em; }

p {
  margin-bottom: var(--bb-spacing-md);
  line-height: var(--bb-line-height);
}

/* Strong numeric clarity for data */
.numeric,
[class*="price"],
[class*="value"],
[class*="percent"] {
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

/* ============================================
   REMOVE ALL ROUNDED CORNERS
   ============================================ */
* {
  border-radius: 0 !important;
}

/* ============================================
   REMOVE ALL SHADOWS
   ============================================ */
*,
*::before,
*::after {
  box-shadow: none !important;
  text-shadow: none !important;
}

/* ============================================
   LINKS
   ============================================ */
a {
  color: var(--bb-color-link);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--bb-color-link-hover);
  text-decoration: underline;
}

a:focus-visible {
  outline: 2px solid var(--bb-color-link);
  outline-offset: 2px;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  font-family: var(--bb-font-family) !important;
  font-size: var(--bb-font-size-base);
  font-weight: 500;
  letter-spacing: 0;
  padding: 8px 16px;
  border-width: var(--bb-border-width);
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.btn-primary {
  background-color: var(--bb-color-text);
  border-color: var(--bb-color-text);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: #333333;
  border-color: #333333;
}

.btn-secondary {
  background-color: transparent;
  border-color: var(--bb-border-color-dark);
  color: var(--bb-color-text);
}

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

.btn-outline-primary {
  border-color: var(--bb-color-text);
  color: var(--bb-color-text);
}

.btn-outline-primary:hover {
  background-color: var(--bb-color-text);
  color: #ffffff;
}

.btn-sm {
  font-size: var(--bb-font-size-small);
  padding: 6px 12px;
}

.btn-lg {
  font-size: var(--bb-font-size-large);
  padding: 10px 20px;
}

/* ============================================
   FORMS & INPUTS
   ============================================ */
.form-control,
.form-select {
  font-family: var(--bb-font-family) !important;
  font-size: var(--bb-font-size-base);
  padding: 8px 12px;
  border: var(--bb-border-width) solid var(--bb-border-color);
  background-color: var(--bb-color-bg);
  color: var(--bb-color-text);
  transition: border-color 0.15s ease;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--bb-color-text);
  outline: none;
}

.form-control::placeholder {
  color: var(--bb-color-text-muted);
}

.form-label {
  font-weight: 500;
  font-size: var(--bb-font-size-small);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 6px;
  color: var(--bb-color-text-secondary);
}

.form-check-input {
  border: var(--bb-border-width) solid var(--bb-border-color-dark);
}

.form-check-input:checked {
  background-color: var(--bb-color-text);
  border-color: var(--bb-color-text);
}

.form-check-label {
  font-size: var(--bb-font-size-base);
}

/* ============================================
   CARDS
   ============================================ */
.card {
  border: var(--bb-border-width) solid var(--bb-border-color);
  background-color: var(--bb-color-bg);
}

.card-header,
.card-footer {
  background-color: var(--bb-color-bg-secondary);
  border-color: var(--bb-border-color);
  padding: var(--bb-spacing-md) var(--bb-spacing-md);
  font-weight: 600;
  font-size: var(--bb-font-size-small);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

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

.card-title {
  font-size: var(--bb-font-size-large);
  font-weight: 600;
  margin-bottom: var(--bb-spacing-sm);
  letter-spacing: var(--bb-letter-spacing-tight);
}

/* ============================================
   TABLES
   ============================================ */
.table {
  font-family: var(--bb-font-family) !important;
  font-size: var(--bb-font-size-base);
  color: var(--bb-color-text);
  border-collapse: collapse;
}

.table th {
  font-weight: 600;
  font-size: var(--bb-font-size-small);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--bb-color-text-secondary);
  border-bottom: 2px solid var(--bb-border-color-dark);
  padding: var(--bb-spacing-sm) var(--bb-spacing-md);
  background-color: var(--bb-color-bg-secondary);
}

.table td {
  padding: var(--bb-spacing-sm) var(--bb-spacing-md);
  border-bottom: var(--bb-border-width) solid var(--bb-border-color);
  vertical-align: middle;
}

.table-striped > tbody > tr:nth-of-type(odd) {
  background-color: transparent;
}

.table-hover > tbody > tr:hover {
  background-color: var(--bb-color-bg-secondary);
}

.table-bordered {
  border: var(--bb-border-width) solid var(--bb-border-color);
}

.table-bordered th,
.table-bordered td {
  border: var(--bb-border-width) solid var(--bb-border-color);
}

/* ============================================
   NAVIGATION / NAVBAR
   ============================================ */
.navbar {
  border-bottom: var(--bb-border-width) solid var(--bb-border-color);
  padding: 0;
  background-color: var(--bb-color-bg) !important;
}

.navbar-brand {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.02em;
  color: var(--bb-color-text) !important;
  padding: var(--bb-spacing-md) var(--bb-spacing-lg);
}

.nav-link {
  font-size: var(--bb-font-size-base);
  font-weight: 500;
  color: var(--bb-color-text-secondary) !important;
  padding: var(--bb-spacing-md) var(--bb-spacing-lg) !important;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.nav-link:hover {
  color: var(--bb-color-text) !important;
  text-decoration: none;
}

.nav-link.active {
  color: var(--bb-color-text) !important;
  border-bottom-color: var(--bb-color-text);
}

.nav-tabs {
  border-bottom: var(--bb-border-width) solid var(--bb-border-color);
}

.nav-tabs .nav-link {
  border: none;
  border-bottom: 2px solid transparent;
}

.nav-tabs .nav-link.active {
  border-bottom-color: var(--bb-color-text);
  background-color: transparent;
}

/* ============================================
   BADGES / PILLS
   ============================================ */
.badge {
  font-family: var(--bb-font-family) !important;
  font-size: 0.70em;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 4px 8px;
  text-transform: uppercase;
}

.badge.bg-primary {
  background-color: var(--bb-color-text) !important;
  color: #ffffff;
}

.badge.bg-secondary {
  background-color: var(--bb-color-bg-tertiary) !important;
  color: var(--bb-color-text);
}

.badge.bg-success {
  background-color: var(--bb-color-positive) !important;
  color: #ffffff;
}

.badge.bg-danger {
  background-color: var(--bb-color-negative) !important;
  color: #ffffff;
}

/* ============================================
   ALERTS
   ============================================ */
.alert {
  font-size: var(--bb-font-size-base);
  border: var(--bb-border-width) solid;
  padding: var(--bb-spacing-md);
  margin-bottom: var(--bb-spacing-md);
}

.alert-primary {
  background-color: #f0f0f0;
  border-color: var(--bb-border-color-dark);
  color: var(--bb-color-text);
}

.alert-success {
  background-color: #f0f8f0;
  border-color: var(--bb-color-positive);
  color: var(--bb-color-positive);
}

.alert-danger {
  background-color: #fff0f0;
  border-color: var(--bb-color-negative);
  color: var(--bb-color-negative);
}

/* ============================================
   MODALS
   ============================================ */
.modal-content {
  border: var(--bb-border-width) solid var(--bb-border-color);
}

.modal-header {
  border-bottom: var(--bb-border-width) solid var(--bb-border-color);
  padding: var(--bb-spacing-lg);
  background-color: var(--bb-color-bg-secondary);
}

.modal-title {
  font-weight: 600;
  font-size: var(--bb-font-size-large);
}

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

.modal-footer {
  border-top: var(--bb-border-width) solid var(--bb-border-color);
  padding: var(--bb-spacing-md) var(--bb-spacing-lg);
  background-color: var(--bb-color-bg-secondary);
}

/* ============================================
   DROPDOWNS
   ============================================ */
.dropdown-menu {
  border: var(--bb-border-width) solid var(--bb-border-color);
  padding: 0;
  font-size: var(--bb-font-size-base);
}

.dropdown-item {
  padding: var(--bb-spacing-sm) var(--bb-spacing-md);
  color: var(--bb-color-text);
  transition: background-color 0.15s ease;
}

.dropdown-item:hover {
  background-color: var(--bb-color-bg-secondary);
  color: var(--bb-color-text);
}

.dropdown-divider {
  border-top: var(--bb-border-width) solid var(--bb-border-color);
  margin: 0;
}

/* ============================================
   LIST GROUPS
   ============================================ */
.list-group-item {
  border: var(--bb-border-width) solid var(--bb-border-color);
  padding: var(--bb-spacing-md);
  background-color: var(--bb-color-bg);
  color: var(--bb-color-text);
}

.list-group-item:hover {
  background-color: var(--bb-color-bg-secondary);
}

.list-group-item.active {
  background-color: var(--bb-color-text);
  border-color: var(--bb-color-text);
  color: #ffffff;
}

/* ============================================
   PAGINATION
   ============================================ */
.pagination {
  font-size: var(--bb-font-size-base);
}

.page-link {
  color: var(--bb-color-text);
  border: var(--bb-border-width) solid var(--bb-border-color);
  padding: 6px 12px;
}

.page-link:hover {
  background-color: var(--bb-color-bg-secondary);
  border-color: var(--bb-border-color-dark);
  color: var(--bb-color-text);
}

.page-item.active .page-link {
  background-color: var(--bb-color-text);
  border-color: var(--bb-color-text);
  color: #ffffff;
}

/* ============================================
   ACCORDION
   ============================================ */
.accordion-item {
  border: var(--bb-border-width) solid var(--bb-border-color);
  margin-bottom: -1px;
}

.accordion-button {
  font-weight: 500;
  padding: var(--bb-spacing-md);
  background-color: var(--bb-color-bg-secondary);
  color: var(--bb-color-text);
}

.accordion-button:not(.collapsed) {
  background-color: var(--bb-color-bg-secondary);
  color: var(--bb-color-text);
}

.accordion-button:focus {
  border-color: var(--bb-border-color);
  outline: 2px solid var(--bb-color-text);
  outline-offset: -2px;
}

.accordion-body {
  padding: var(--bb-spacing-md);
  border-top: var(--bb-border-width) solid var(--bb-border-color);
}

/* ============================================
   DIVIDERS & BORDERS
   ============================================ */
hr {
  border: none;
  border-top: var(--bb-border-width) solid var(--bb-border-color);
  margin: var(--bb-spacing-lg) 0;
  opacity: 1;
}

.border {
  border: var(--bb-border-width) solid var(--bb-border-color) !important;
}

.border-top {
  border-top: var(--bb-border-width) solid var(--bb-border-color) !important;
}

.border-bottom {
  border-bottom: var(--bb-border-width) solid var(--bb-border-color) !important;
}

.border-start {
  border-left: var(--bb-border-width) solid var(--bb-border-color) !important;
}

.border-end {
  border-right: var(--bb-border-width) solid var(--bb-border-color) !important;
}

/* ============================================
   UTILITY CLASSES - Bloomberg Style
   ============================================ */

/* Data display utilities */
.bb-price-up {
  color: var(--bb-color-positive);
  font-variant-numeric: tabular-nums;
}

.bb-price-down {
  color: var(--bb-color-negative);
  font-variant-numeric: tabular-nums;
}

.bb-price-neutral {
  color: var(--bb-color-neutral);
  font-variant-numeric: tabular-nums;
}

.bb-divider-vertical {
  display: inline-block;
  width: 1px;
  height: 100%;
  background-color: var(--bb-border-color);
  margin: 0 var(--bb-spacing-md);
}

.bb-section-header {
  font-size: var(--bb-font-size-small);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--bb-color-text-secondary);
  padding-bottom: var(--bb-spacing-sm);
  border-bottom: 2px solid var(--bb-border-color-dark);
  margin-bottom: var(--bb-spacing-md);
}

.bb-data-label {
  font-size: var(--bb-font-size-small);
  color: var(--bb-color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  font-weight: 500;
}

.bb-data-value {
  font-size: var(--bb-font-size-large);
  font-weight: 600;
  color: var(--bb-color-text);
  font-variant-numeric: tabular-nums;
}

/* Dense layout */
.bb-dense {
  line-height: 1.3;
}

.bb-dense-sm {
  font-size: var(--bb-font-size-small);
  line-height: 1.4;
}

/* Grid helpers for Bloomberg-style layouts */
.bb-grid-cell {
  padding: var(--bb-spacing-md);
  border-right: var(--bb-border-width) solid var(--bb-border-color);
  border-bottom: var(--bb-border-width) solid var(--bb-border-color);
}

.bb-grid-cell:last-child {
  border-right: none;
}

/* ============================================
   RESPONSIVE ADJUSTMENTS
   ============================================ */
@media (max-width: 768px) {
  :root {
    --bb-font-size-base: 13px;
    --bb-spacing-md: 10px;
  }
  
  .card-body,
  .modal-body {
    padding: var(--bb-spacing-md);
  }
  
  .btn {
    padding: 6px 12px;
  }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */
*:focus-visible {
  outline: 2px solid var(--bb-color-text);
  outline-offset: 2px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* High contrast adjustments for accessibility */
@media (prefers-contrast: high) {
  :root {
    --bb-border-color: #999999;
    --bb-border-color-dark: #666666;
  }
}