/**
 * Bootstrap 5.1.3 FinTech Design System
 * Production-ready design tokens and custom CSS variables
 * Extends Bootstrap with FinTech/Web3 platform aesthetics
 */

:root {
  /* ============================================
     COLOR SYSTEM - FinTech Palette
     ============================================ */

  /* Primary Colors - Trust & Professional */
  --bs-primary: #0d6efd;
  --bs-primary-rgb: 13, 110, 253;
  --bs-primary-dark: #1e40af;
  --bs-primary-darker: #1e293b;

  /* Secondary Colors - Neutral & Balanced */
  --bs-secondary: #64748b;
  --bs-secondary-rgb: 100, 116, 139;

  /* Accent Colors - Success & Action */
  --bs-success: #22c55e;
  --bs-success-rgb: 34, 197, 94;
  --bs-info: #06b6d4;
  --bs-info-rgb: 6, 182, 212;

  /* Background Colors */
  --bs-body-bg: #f8fafc;
  --bs-body-color: #1e293b;
  --bs-dark: #0f172a;
  --bs-dark-rgb: 15, 23, 42;
  --bs-light: #f1f5f9;

  /* Neutral Grays - High Contrast */
  --bs-gray-50: #f8fafc;
  --bs-gray-100: #f1f5f9;
  --bs-gray-200: #e2e8f0;
  --bs-gray-300: #cbd5e1;
  --bs-gray-400: #94a3b8;
  --bs-gray-500: #64748b;
  --bs-gray-600: #475569;
  --bs-gray-700: #334155;
  --bs-gray-800: #1e293b;
  --bs-gray-900: #0f172a;

  /* Text Colors */
  --bs-text-primary: #1e293b;
  --bs-text-secondary: #64748b;
  --bs-text-muted: #94a3b8;
  --bs-text-light: #cbd5e1;

  /* Border Colors */
  --bs-border-color: #e2e8f0;
  --bs-border-color-dark: #334155;

  /* ============================================
     TYPOGRAPHY SYSTEM
     ============================================ */

  /* Font Families - Inter/Roboto/System Stack */
  --bs-font-sans-serif: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto',
    'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  --bs-font-monospace: 'Roboto Mono', 'Fira Code', 'Courier New', monospace;

  /* Font Sizes - Bootstrap Scale */
  --bs-font-size-base: 1rem;
  --bs-font-size-sm: 0.875rem;
  --bs-font-size-lg: 1.125rem;

  /* Line Heights - Improved Readability */
  --bs-line-height-base: 1.6;
  --bs-line-height-sm: 1.5;
  --bs-line-height-lg: 1.75;

  /* Font Weights */
  --bs-font-weight-normal: 400;
  --bs-font-weight-medium: 500;
  --bs-font-weight-semibold: 600;
  --bs-font-weight-bold: 700;

  /* ============================================
     SPACING SYSTEM - Bootstrap Grid
     ============================================ */

  /* Bootstrap uses 0.25rem base (4px), so:
     p-1 = 0.25rem (4px)
     p-2 = 0.5rem (8px)
     p-3 = 0.75rem (12px)
     p-4 = 1rem (16px)
     p-5 = 1.5rem (24px)
     p-6 = 2rem (32px) - Custom
  */

  /* ============================================
     BORDER & RADIUS
     ============================================ */

  --bs-border-radius: 0.5rem;
  --bs-border-radius-sm: 0.375rem;
  --bs-border-radius-lg: 0.75rem;
  --bs-border-radius-xl: 1rem;
  --bs-border-radius-2xl: 1.25rem;
  --bs-border-width: 1px;

  /* ============================================
     SHADOWS - Soft & Professional
     ============================================ */

  --bs-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --bs-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --bs-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --bs-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --bs-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Card Shadows */
  --bs-card-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --bs-card-shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);

  /* ============================================
     COMPONENT SPECIFIC VARIABLES
     ============================================ */

  /* Card */
  --bs-card-bg: #ffffff;
  --bs-card-border-color: #e2e8f0;
  --bs-card-border-radius: var(--bs-border-radius-lg);
  --bs-card-padding: 1.5rem;

  /* Navbar */
  --bs-navbar-bg: #ffffff;
  --bs-navbar-height: 72px;
  --bs-navbar-shadow: var(--bs-shadow-sm);

  /* Sidebar */
  --bs-sidebar-width: 280px;
  --bs-sidebar-bg: #ffffff;
  --bs-sidebar-border-color: #e2e8f0;

  /* Buttons */
  --bs-btn-border-radius: var(--bs-border-radius);
  --bs-btn-padding-x: 1.25rem;
  --bs-btn-padding-y: 0.625rem;
  --bs-btn-font-weight: var(--bs-font-weight-semibold);

  /* Forms */
  --bs-input-bg: #ffffff;
  --bs-input-border-color: #cbd5e1;
  --bs-input-border-radius: var(--bs-border-radius);
  --bs-input-focus-border-color: var(--bs-primary);
  --bs-input-focus-box-shadow: 0 0 0 0.2rem rgba(var(--bs-primary-rgb), 0.25);

  /* Tables */
  --bs-table-bg: #ffffff;
  --bs-table-border-color: #e2e8f0;
  --bs-table-striped-bg: #f8fafc;

  /* Modals */
  --bs-modal-border-radius: var(--bs-border-radius-xl);
  --bs-modal-backdrop-bg: rgba(15, 23, 42, 0.75);
}

/* ============================================
   TYPOGRAPHY UTILITIES
   ============================================ */

body {
  font-family: var(--bs-font-sans-serif);
  font-size: var(--bs-font-size-base);
  line-height: var(--bs-line-height-base);
  color: var(--bs-body-color);
  background-color: var(--bs-body-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: var(--bs-font-weight-semibold);
  color: var(--bs-text-primary);
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.75rem;
}

h4 {
  font-size: 1.5rem;
}

h5 {
  font-size: 1.25rem;
}

h6 {
  font-size: 1rem;
}

.text-primary-custom {
  color: var(--bs-primary) !important;
}

.text-secondary-custom {
  color: var(--bs-secondary) !important;
}

/* ============================================
   CARD ENHANCEMENTS
   ============================================ */

.card {
  border: var(--bs-border-width) solid var(--bs-card-border-color);
  border-radius: var(--bs-card-border-radius);
  background-color: var(--bs-card-bg);
  box-shadow: var(--bs-card-shadow);
  transition: box-shadow 0.15s ease-in-out, transform 0.15s ease-in-out;
}

.card:hover {
  box-shadow: var(--bs-card-shadow-hover);
  transform: translateY(-2px);
}

.card-header {
  background-color: transparent;
  border-bottom: var(--bs-border-width) solid var(--bs-border-color);
  padding: var(--bs-card-padding);
  font-weight: var(--bs-font-weight-semibold);
}

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

.card-footer {
  background-color: transparent;
  border-top: var(--bs-border-width) solid var(--bs-border-color);
  padding: var(--bs-card-padding);
}

/* Stat Card - FinTech Style */
.stat-card {
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
  border: 1px solid var(--bs-border-color);
  border-radius: var(--bs-border-radius-lg);
  padding: 1.5rem;
  transition: all 0.2s ease;
}

.stat-card:hover {
  border-color: var(--bs-primary);
  box-shadow: var(--bs-shadow-md);
}

.stat-card-value {
  font-size: 2rem;
  font-weight: var(--bs-font-weight-bold);
  color: var(--bs-text-primary);
  line-height: 1.2;
  margin-bottom: 0.25rem;
}

.stat-card-label {
  font-size: var(--bs-font-size-sm);
  color: var(--bs-text-secondary);
  font-weight: var(--bs-font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--bs-border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.stat-card-icon-primary {
  background-color: rgba(var(--bs-primary-rgb), 0.1);
  color: var(--bs-primary);
}

.stat-card-icon-success {
  background-color: rgba(var(--bs-success-rgb), 0.1);
  color: var(--bs-success);
}

.stat-card-icon-info {
  background-color: rgba(var(--bs-info-rgb), 0.1);
  color: var(--bs-info);
}

/* ============================================
   BUTTON ENHANCEMENTS
   ============================================ */

.btn {
  font-weight: var(--bs-btn-font-weight);
  border-radius: var(--bs-btn-border-radius);
  padding: var(--bs-btn-padding-y) var(--bs-btn-padding-x);
  transition: all 0.15s ease-in-out;
  border: var(--bs-border-width) solid transparent;
}

.btn-primary {
  background-color: var(--bs-primary);
  border-color: var(--bs-primary);
}

.btn-primary:hover {
  background-color: var(--bs-primary-dark);
  border-color: var(--bs-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--bs-shadow-md);
}

.btn-outline-primary {
  color: var(--bs-primary);
  border-color: var(--bs-primary);
  background-color: transparent;
}

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

.btn-success {
  background-color: var(--bs-success);
  border-color: var(--bs-success);
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: var(--bs-font-size-lg);
  border-radius: var(--bs-border-radius-lg);
}

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: var(--bs-font-size-sm);
}

/* ============================================
   FORM ENHANCEMENTS
   ============================================ */

.form-control,
.form-select {
  border: var(--bs-border-width) solid var(--bs-input-border-color);
  border-radius: var(--bs-input-border-radius);
  padding: 0.625rem 0.875rem;
  font-size: var(--bs-font-size-base);
  line-height: var(--bs-line-height-base);
  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--bs-input-focus-border-color);
  box-shadow: var(--bs-input-focus-box-shadow);
  outline: 0;
}

.form-label {
  font-weight: var(--bs-font-weight-medium);
  color: var(--bs-text-primary);
  margin-bottom: 0.5rem;
  font-size: var(--bs-font-size-sm);
}

.form-text {
  color: var(--bs-text-muted);
  font-size: var(--bs-font-size-sm);
}

.input-group-text {
  background-color: var(--bs-gray-50);
  border: var(--bs-border-width) solid var(--bs-input-border-color);
  color: var(--bs-text-secondary);
}

/* ============================================
   NAVBAR ENHANCEMENTS
   ============================================ */

.navbar {
  background-color: var(--bs-navbar-bg);
  box-shadow: var(--bs-navbar-shadow);
  min-height: var(--bs-navbar-height);
  padding: 0.75rem 1rem;
}

.navbar-brand {
  font-weight: var(--bs-font-weight-bold);
  font-size: 1.25rem;
  color: var(--bs-text-primary);
}

.navbar-nav .nav-link {
  font-weight: var(--bs-font-weight-medium);
  color: var(--bs-text-secondary);
  padding: 0.5rem 1rem;
  transition: color 0.15s ease-in-out;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--bs-primary);
}

/* ============================================
   TABLE ENHANCEMENTS
   ============================================ */

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

.table thead th {
  border-bottom: 2px solid var(--bs-border-color);
  font-weight: var(--bs-font-weight-semibold);
  color: var(--bs-text-primary);
  text-transform: uppercase;
  font-size: var(--bs-font-size-sm);
  letter-spacing: 0.05em;
  background-color: var(--bs-gray-50);
}

.table-striped>tbody>tr:nth-of-type(odd)>td {
  background-color: var(--bs-table-striped-bg);
}

.table-hover>tbody>tr:hover {
  background-color: var(--bs-gray-100);
}

/* ============================================
   MODAL ENHANCEMENTS
   ============================================ */

.modal-content {
  border-radius: var(--bs-modal-border-radius);
  border: none;
  box-shadow: var(--bs-shadow-xl);
}

.modal-header {
  border-bottom: var(--bs-border-width) solid var(--bs-border-color);
  padding: 1.5rem;
}

.modal-title {
  font-weight: var(--bs-font-weight-semibold);
  font-size: 1.25rem;
}

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  border-top: var(--bs-border-width) solid var(--bs-border-color);
  padding: 1rem 1.5rem;
}

.modal-backdrop {
  background-color: var(--bs-modal-backdrop-bg);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

/* Shadow Utilities */
.shadow-custom {
  box-shadow: var(--bs-shadow);
}

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

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

/* Border Utilities */
.border-custom {
  border: var(--bs-border-width) solid var(--bs-border-color);
}

.border-primary-custom {
  border-color: var(--bs-primary) !important;
}

/* Background Utilities */
.bg-light-custom {
  background-color: var(--bs-gray-50) !important;
}

.bg-primary-light {
  background-color: rgba(var(--bs-primary-rgb), 0.1) !important;
}

.bg-success-light {
  background-color: rgba(var(--bs-success-rgb), 0.1) !important;
}

/* Spacing Utilities - Extended */
.p-6 {
  padding: 2rem !important;
}

.m-6 {
  margin: 2rem !important;
}

.gap-4 {
  gap: 1.5rem !important;
}

.gap-5 {
  gap: 2rem !important;
}

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */

@media (max-width: 768px) {
  :root {
    --bs-card-padding: 1rem;
    --bs-sidebar-width: 100%;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  h3 {
    font-size: 1.5rem;
  }

  .stat-card-value {
    font-size: 1.5rem;
  }
}

/* ============================================
   DARK MODE SUPPORT (Optional)
   ============================================ */

[data-bs-theme="dark"] {
  --bs-body-bg: #0f172a;
  --bs-body-color: #f1f5f9;
  --bs-card-bg: #1e293b;
  --bs-card-border-color: #334155;
  --bs-text-primary: #f1f5f9;
  --bs-text-secondary: #cbd5e1;
  --bs-border-color: #334155;
  --bs-navbar-bg: #1e293b;
  --bs-table-bg: #1e293b;
  --bs-table-striped-bg: #0f172a;
  --bs-input-bg: #1e293b;
  --bs-input-border-color: #334155;
}