/* ============================================
   OSA-BOS — Premium Enterprise Design System v2
   Aesthetic: Refined Corporate Dark + Crisp Light
   Fonts: DM Sans (UI) + DM Mono (data/code)
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=DM+Mono:wght@400;500&display=swap');

/* ============================================
   DESIGN TOKENS
   ============================================ */
:root {
  /* Brand */
  --primary:        #2563eb;
  --primary-hover:  #1d4ed8;
  --primary-light:  #eff6ff;
  --primary-glow:   rgba(37, 99, 235, 0.15);

  /* Backgrounds */
  --bg:             #f4f6fb;
  --surface:        #ffffff;
  --surface-alt:    #f8fafd;
  --surface-raised: #ffffff;

  /* Text */
  --text:           #0d1117;
  --text-secondary: #4a5568;
  --text-muted:     #9ba3af;
  --text-inverse:   #ffffff;

  /* Borders */
  --border:         #e5e9f0;
  --border-light:   #f0f3f8;
  --border-strong:  #d1d9e6;

  /* Sidebar */
  --sidebar-width:     256px;
  --sidebar-bg:        #0d1117;
  --sidebar-surface:   #161b22;
  --sidebar-text:      #8b949e;
  --sidebar-text-hover:#cdd9e5;
  --sidebar-active-bg: rgba(37, 99, 235, 0.18);
  --sidebar-active-text: #79b8ff;
  --sidebar-active-border: #2563eb;
  --sidebar-hover-bg:  rgba(255,255,255,0.05);
  --sidebar-border:    rgba(255,255,255,0.06);

  /* Header */
  --header-bg:      #ffffff;
  --header-border:  #e5e9f0;
  --header-height:  58px;

  /* Semantic */
  --success:        #10b981;
  --success-light:  #ecfdf5;
  --warning:        #f59e0b;
  --warning-light:  #fffbeb;
  --danger:         #ef4444;
  --danger-light:   #fef2f2;
  --info:           #06b6d4;
  --info-light:     #ecfeff;

  /* Shape */
  --radius-xs: 4px;
  --radius-sm: 7px;
  --radius:    11px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  /* Shadows */
  --shadow-xs:  0 1px 2px rgba(13,17,23,0.04);
  --shadow-sm:  0 1px 3px rgba(13,17,23,0.06), 0 1px 2px rgba(13,17,23,0.04);
  --shadow:     0 4px 12px rgba(13,17,23,0.07), 0 1px 3px rgba(13,17,23,0.05);
  --shadow-lg:  0 10px 30px rgba(13,17,23,0.10), 0 4px 8px rgba(13,17,23,0.06);
  --shadow-xl:  0 20px 50px rgba(13,17,23,0.14), 0 8px 16px rgba(13,17,23,0.08);

  /* Motion */
  --ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:    cubic-bezier(0.4, 0, 1, 1);
  --ease:       cubic-bezier(0.4, 0, 0.2, 1);
  --duration:   160ms;
  --duration-md:240ms;
  --duration-lg:360ms;
}

/* ============================================
   DARK THEME
   ============================================ */
[data-theme="dark"] {
  --bg:             #0d1117;
  --surface:        #161b22;
  --surface-alt:    #0d1117;
  --surface-raised: #1c2230;

  --text:           #e6edf3;
  --text-secondary: #8d96a0;
  --text-muted:     #4d5562;

  --border:         #21262d;
  --border-light:   #1a2030;
  --border-strong:  #30363d;

  --primary-light:  rgba(37,99,235,0.12);
  --primary-glow:   rgba(37,99,235,0.20);

  --header-bg:      #161b22;
  --header-border:  #21262d;

  --success-light:  rgba(16,185,129,0.10);
  --warning-light:  rgba(245,158,11,0.10);
  --danger-light:   rgba(239,68,68,0.10);
  --info-light:     rgba(6,182,212,0.10);

  --shadow-xs:  0 1px 2px rgba(0,0,0,0.2);
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.3), 0 1px 2px rgba(0,0,0,0.2);
  --shadow:     0 4px 12px rgba(0,0,0,0.4), 0 1px 3px rgba(0,0,0,0.3);
  --shadow-lg:  0 10px 30px rgba(0,0,0,0.5), 0 4px 8px rgba(0,0,0,0.3);
  --shadow-xl:  0 20px 50px rgba(0,0,0,0.6), 0 8px 16px rgba(0,0,0,0.4);

  /* ── Override Bootstrap 5's CSS custom properties ──────────
     Bootstrap components (table, modal, form-control, btn, card)
     use --bs-* vars from :root. Without overriding them, those
     components stay light-themed even when our vars are dark.   */
  --bs-body-bg:                #0d1117;
  --bs-body-color:             #e6edf3;
  --bs-body-color-rgb:         230, 237, 243;
  --bs-emphasis-color:         #e6edf3;
  --bs-secondary-color:        rgba(230,237,243,0.75);
  --bs-tertiary-color:         rgba(230,237,243,0.5);
  --bs-secondary-bg:           #161b22;
  --bs-tertiary-bg:            #1c2230;
  --bs-border-color:           #21262d;
  --bs-border-color-translucent: rgba(255,255,255,0.1);

  /* Form controls */
  --bs-form-control-bg:        #1c2230;
  --bs-form-control-disabled-bg: #161b22;
  --bs-input-bg:               #1c2230;
  --bs-input-border-color:     #21262d;
  --bs-input-color:            #e6edf3;
  --bs-input-placeholder-color: #4d5562;
  --bs-input-focus-border-color: #2563eb;
  --bs-input-focus-box-shadow: 0 0 0 0.25rem rgba(37,99,235,0.25);

  /* Modal */
  --bs-modal-bg:               #161b22;
  --bs-modal-border-color:     #21262d;
  --bs-modal-header-border-color: #21262d;
  --bs-modal-footer-border-color: #21262d;
  --bs-modal-color:            #e6edf3;

  /* Table */
  --bs-table-bg:               transparent;
  --bs-table-color:            #e6edf3;
  --bs-table-border-color:     #21262d;
  --bs-table-striped-bg:       rgba(255,255,255,0.03);
  --bs-table-hover-bg:         rgba(37,99,235,0.10);
  --bs-table-active-bg:        rgba(37,99,235,0.15);

  /* Card */
  --bs-card-bg:                #161b22;
  --bs-card-border-color:      #21262d;
  --bs-card-color:             #e6edf3;
  --bs-card-cap-bg:            rgba(255,255,255,0.03);

  /* Dropdown */
  --bs-dropdown-bg:            #1c2230;
  --bs-dropdown-border-color:  #21262d;
  --bs-dropdown-color:         #e6edf3;
  --bs-dropdown-link-color:    #e6edf3;
  --bs-dropdown-link-hover-bg: rgba(255,255,255,0.07);
  --bs-dropdown-divider-bg:    #21262d;

  /* Select */
  --bs-form-select-bg:         #1c2230;
  --bs-form-select-border-color: #21262d;
  --bs-form-select-color:      #e6edf3;

  /* Pagination */
  --bs-pagination-bg:          #161b22;
  --bs-pagination-border-color:#21262d;
  --bs-pagination-color:       #8d96a0;
  --bs-pagination-hover-bg:    #1c2230;
  --bs-pagination-active-bg:   #2563eb;
  --bs-pagination-disabled-bg: #161b22;
}


/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "kern" 1, "liga" 1, "calt" 1;
  line-height: 1.5;
}

/* ============================================
   APP LOADER — refined progress bar
   ============================================ */
.app-loader {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3px;
  z-index: 9999;
  background: rgba(37,99,235,0.15);
  transition: opacity 0.3s var(--ease), visibility 0.3s var(--ease);
  opacity: 1;
  visibility: visible;
}
.app-loader .loader-bar {
  height: 100%;
  width: 45%;
  background: linear-gradient(90deg, #2563eb, #60a5fa, #2563eb);
  background-size: 200% 100%;
  border-radius: 0 3px 3px 0;
  animation: loader-slide 1.1s ease-in-out infinite;
  box-shadow: 0 0 10px rgba(37,99,235,0.7), 0 0 4px rgba(96,165,250,0.5);
}
@keyframes loader-slide {
  0%   { margin-left: -45%; }
  100% { margin-left: 100%; }
}
.app-loader.fade-out {
  opacity: 0;
  visibility: hidden;
}

/* ============================================
   APP SHELL
   ============================================ */
.app-shell {
  display: flex;
  min-height: 100vh;
}

/* ============================================
   SIDEBAR
   ============================================ */
.sidebar {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: var(--sidebar-width);
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  z-index: 1050;
  transition: transform var(--duration-md) var(--ease-out);
  border-right: 1px solid var(--sidebar-border);
  overflow: hidden;
}

/* subtle top gradient accent */
.sidebar::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(37,99,235,0.6), transparent);
}

/* ---- Brand ---- */
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--sidebar-border);
  position: relative;
  flex-shrink: 0;
}
.sidebar-logo {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #2563eb, #3b82f6);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1rem;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(37,99,235,0.4);
}
.sidebar-brand h5 {
  margin: 0;
  color: #e6edf3;
  font-size: .9rem;
  font-weight: 700;
  letter-spacing: -0.2px;
  line-height: 1.2;
}
.sidebar-brand small {
  display: block;
  color: var(--sidebar-text);
  font-size: .62rem;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  margin-top: 1px;
  font-weight: 500;
}
.sidebar-close {
  position: absolute;
  right: 14px; top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--sidebar-text);
  font-size: 1rem;
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  transition: color var(--duration) var(--ease), background var(--duration) var(--ease);
}
.sidebar-close:hover {
  color: #e6edf3;
  background: var(--sidebar-hover-bg);
}

/* ---- Nav section label ---- */
.sidebar-section-label {
  font-size: .58rem;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--sidebar-text);
  padding: 16px 16px 6px;
  opacity: 0.55;
  user-select: none;
}

/* ---- Nav ---- */
.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 10px 10px 6px;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.08) transparent;
}
.sidebar-nav::-webkit-scrollbar { width: 3px; }
.sidebar-nav::-webkit-scrollbar-track { background: transparent; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 2px; }

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  color: var(--sidebar-text);
  text-decoration: none;
  font-size: .82rem;
  font-weight: 500;
  transition: all var(--duration) var(--ease);
  margin-bottom: 1px;
  position: relative;
  border: 1px solid transparent;
  white-space: nowrap;
  overflow: hidden;
}
.sidebar-nav a:hover {
  background: var(--sidebar-hover-bg);
  color: var(--sidebar-text-hover);
  border-color: rgba(255,255,255,0.04);
}
.sidebar-nav a.active {
  background: var(--sidebar-active-bg);
  color: var(--sidebar-active-text);
  border-color: rgba(37,99,235,0.2);
  font-weight: 600;
}
.sidebar-nav a.active::before {
  content: '';
  position: absolute;
  left: 0; top: 20%; bottom: 20%;
  width: 2px;
  background: var(--sidebar-active-border);
  border-radius: 0 2px 2px 0;
}
.sidebar-nav a i {
  font-size: .95rem;
  width: 18px;
  text-align: center;
  flex-shrink: 0;
  opacity: 0.8;
  transition: opacity var(--duration) var(--ease);
}
.sidebar-nav a:hover i,
.sidebar-nav a.active i {
  opacity: 1;
}

/* ---- Footer ---- */
.sidebar-footer {
  padding: 12px 10px;
  border-top: 1px solid var(--sidebar-border);
  flex-shrink: 0;
}
.sidebar-footer .btn {
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.08);
  color: var(--sidebar-text);
  font-size: .78rem;
  font-weight: 500;
  transition: all var(--duration) var(--ease);
}
.sidebar-footer .btn:hover {
  background: rgba(239,68,68,0.12);
  border-color: rgba(239,68,68,0.2);
  color: #f87171;
}

/* ---- Overlay ---- */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 1040;
}


/* ============================================
   HEADER
   ============================================ */
.app-header {
  position: sticky;
  top: 0;
  z-index: 1020;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: var(--header-height);
  /* Solid background — avoids creating a stacking context that breaks
     Bootstrap modal z-index (backdrop-filter on a z-index element
     creates a stacking context that intercepts modal pointer events). */
  background: var(--header-bg);
  border-bottom: 1px solid var(--header-border);
  box-shadow: var(--shadow-xs);
}
.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}
.header-menu-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 6px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: none;
  transition: all var(--duration) var(--ease);
  line-height: 1;
}
.header-menu-btn:hover {
  background: var(--surface-alt);
  color: var(--text);
}
.header-title-block {
  display: flex;
  flex-direction: column;
  gap: 0px;
  line-height: 1.2;
}
.header-page-title {
  font-size: .9rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.2px;
  display: block;
  line-height: 1.2;
}
.header-page-sub {
  font-size: .72rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.1px;
  display: block;
  line-height: 1.3;
}
.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}
.header-user {
  display: flex;
  align-items: center;
  gap: 10px;
}
.header-user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: .72rem;
  font-weight: 700;
  flex-shrink: 0;
  letter-spacing: 0.5px;
}
.header-user-info {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  line-height: 1.2;
}
.header-user-name {
  font-weight: 600;
  font-size: .8rem;
  color: var(--text);
  letter-spacing: -0.1px;
}
.header-role-badge {
  font-size: .58rem;
  padding: 1px 6px;
  border-radius: 3px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .6px;
  margin-top: 1px;
}
.role-super_admin { background: rgba(239,68,68,0.10); color: #ef4444; }
.role-admin       { background: rgba(37,99,235,0.10); color: #3b82f6; }
.role-ops         { background: rgba(16,185,129,0.10); color: #10b981; }
.role-viewer      { background: rgba(107,114,128,0.10); color: #6b7280; }

/* Theme toggle */
.theme-toggle-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--duration) var(--ease);
  font-size: .9rem;
}
.theme-toggle-btn:hover {
  background: var(--surface-alt);
  color: var(--text);
  border-color: var(--border-strong);
}

/* ============================================
   MAIN WRAPPER
   ============================================ */
.main-wrapper {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-width: 0;
}
.content-area {
  flex: 1;
  padding: 24px 28px;
}

/* ============================================
   PAGE HEADER
   ============================================ */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
  flex-wrap: wrap;
  gap: 12px;
}
.page-header h4 {
  margin: 0;
  font-weight: 700;
  font-size: 1.55rem;
  color: var(--text);
  letter-spacing: -0.6px;
  display: flex;
  align-items: center;
  gap: 9px;
  line-height: 1.15;
}
.page-header h4 i {
  font-size: 1.3rem;
  color: var(--primary);
  opacity: 0.85;
  flex-shrink: 0;
}
.page-header-sub {
  font-size: .75rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.2px;
  margin-top: 1px;
  display: block;
}
.page-title-block {
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.page-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.page-header-actions .form-control,
.page-header-actions .form-select {
  height: 34px;
  font-size: .8rem;
}

/* ============================================
   CARDS
   ============================================ */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--duration-md) var(--ease),
              border-color var(--duration-md) var(--ease);
}
.card:hover {
  box-shadow: var(--shadow);
  border-color: var(--border-strong);
}

/* ---- Metric Cards ---- */
.metric-card {
  padding: 20px 22px;
  position: relative;
  overflow: hidden;
  border-top: 3px solid var(--primary);
}
.metric-card::after {
  content: '';
  position: absolute;
  top: -30px; right: -20px;
  width: 90px; height: 90px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.04;
  transition: opacity var(--duration-md) var(--ease);
}
.metric-card:hover::after { opacity: 0.08; }

.metric-card .metric-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  margin-bottom: 12px;
  background: var(--primary-light);
  color: var(--primary);
}
.metric-card .metric-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.8px;
  line-height: 1;
  margin-bottom: 5px;
  font-family: 'DM Mono', monospace;
}
.metric-card .metric-label {
  font-size: .7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .7px;
  font-weight: 600;
}
.metric-card.success { border-top-color: var(--success); }
.metric-card.success .metric-icon { background: var(--success-light); color: var(--success); }
.metric-card.success::after { background: var(--success); }

.metric-card.warning { border-top-color: var(--warning); }
.metric-card.warning .metric-icon { background: var(--warning-light); color: var(--warning); }
.metric-card.warning::after { background: var(--warning); }

.metric-card.danger { border-top-color: var(--danger); }
.metric-card.danger .metric-icon { background: var(--danger-light); color: var(--danger); }
.metric-card.danger::after { background: var(--danger); }

.metric-card.info { border-top-color: var(--info); }
.metric-card.info .metric-icon { background: var(--info-light); color: var(--info); }
.metric-card.info::after { background: var(--info); }

/* ============================================
   TABLES
   ============================================ */
.table-card {
  overflow: hidden;
  border-radius: var(--radius);
}
.table {
  color: var(--text);
  margin: 0;
  width: 100%;
}
.table thead th {
  background: var(--surface-alt);
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .7px;
  font-weight: 700;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  padding: 10px 16px;
  white-space: nowrap;
  user-select: none;
}
.table tbody td {
  padding: 11px 16px;
  font-size: .82rem;
  vertical-align: middle;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-secondary);
  transition: background var(--duration) var(--ease);
}
.table tbody tr:last-child td {
  border-bottom: none;
}
.table tbody tr {
  transition: background var(--duration) var(--ease);
}
.table tbody tr:hover td {
  background: var(--primary-light);
  color: var(--text);
}
.table-empty {
  text-align: center;
  padding: 52px 16px;
  color: var(--text-muted);
  font-size: .85rem;
}
.table-empty i {
  display: block;
  font-size: 2rem;
  margin-bottom: 10px;
  opacity: 0.3;
}

/* ============================================
   BADGES
   ============================================ */
.badge {
  font-weight: 600;
  font-size: .67rem;
  letter-spacing: .3px;
  padding: 3px 9px;
  border-radius: 5px;
  font-family: 'DM Sans', sans-serif;
}

/* Softer semantic badge colours */
.badge.bg-success   { background: var(--success-light) !important; color: #059669 !important; }
.badge.bg-danger    { background: var(--danger-light) !important; color: #dc2626 !important; }
.badge.bg-warning   { background: var(--warning-light) !important; color: #d97706 !important; }
.badge.bg-info      { background: var(--info-light) !important; color: #0891b2 !important; }
.badge.bg-primary   { background: var(--primary-light) !important; color: var(--primary) !important; }
.badge.bg-secondary { background: var(--surface-alt) !important; color: var(--text-muted) !important; border: 1px solid var(--border); }

[data-theme="dark"] .badge.bg-success   { background: rgba(16,185,129,0.15) !important; color: #34d399 !important; }
[data-theme="dark"] .badge.bg-danger    { background: rgba(239,68,68,0.15) !important; color: #f87171 !important; }
[data-theme="dark"] .badge.bg-warning   { background: rgba(245,158,11,0.15) !important; color: #fbbf24 !important; }
[data-theme="dark"] .badge.bg-info      { background: rgba(6,182,212,0.15) !important; color: #22d3ee !important; }
[data-theme="dark"] .badge.bg-primary   { background: rgba(37,99,235,0.18) !important; color: #93c5fd !important; }
[data-theme="dark"] .badge.bg-secondary { background: rgba(255,255,255,0.05) !important; color: var(--text-muted) !important; border-color: var(--border); }

/* ============================================
   FORMS
   ============================================ */
.form-label {
  font-size: .76rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 5px;
  letter-spacing: 0.1px;
}
.form-control,
.form-select {
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-size: .82rem;
  background: var(--surface);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  transition: border-color var(--duration) var(--ease),
              box-shadow var(--duration) var(--ease),
              background var(--duration) var(--ease);
  padding: 7px 11px;
  height: auto;
}
.form-control::placeholder { color: var(--text-muted); }
.form-control:focus,
.form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
  background: var(--surface);
  outline: none;
}
.form-control-sm,
.form-select-sm {
  font-size: .8rem;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
}
.form-control.is-invalid { border-color: var(--danger); }
.form-control.is-invalid:focus { box-shadow: 0 0 0 3px rgba(239,68,68,0.12); }
.invalid-feedback { font-size: .72rem; color: var(--danger); margin-top: 4px; }
.form-check-input:checked { background-color: var(--primary); border-color: var(--primary); }
.form-check-input:focus { box-shadow: 0 0 0 3px var(--primary-glow); border-color: var(--primary); }
.form-check-label { font-size: .8rem; color: var(--text-secondary); }

/* Font mono for code/JSON fields */
.font-monospace,
textarea.font-monospace {
  font-family: 'DM Mono', 'Fira Code', monospace;
  font-size: .78rem !important;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  font-family: 'DM Sans', sans-serif;
  font-size: .8rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  letter-spacing: 0.1px;
  transition: all var(--duration) var(--ease);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
  border: 1px solid transparent;
  padding: 6px 14px;
  line-height: 1.4;
  cursor: pointer;
  user-select: none;
}
.btn:active { transform: translateY(1px); }
.btn-sm { padding: 4px 11px; font-size: .76rem; }
.btn-lg { padding: 9px 20px; font-size: .88rem; }

/* Primary */
.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  box-shadow: 0 1px 3px rgba(37,99,235,0.3);
}
.btn-primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  box-shadow: 0 3px 8px rgba(37,99,235,0.35);
  color: #fff;
}
.btn-primary:active {
  background: #1e40af;
  box-shadow: none;
}

/* Outline variants */
.btn-outline-primary {
  color: var(--primary);
  border-color: var(--border-strong);
  background: transparent;
}
.btn-outline-primary:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}
.btn-outline-secondary {
  color: var(--text-secondary);
  border-color: var(--border);
  background: transparent;
}
.btn-outline-secondary:hover {
  background: var(--surface-alt);
  border-color: var(--border-strong);
  color: var(--text);
}
.btn-outline-success {
  color: var(--success);
  border-color: var(--border-strong);
  background: transparent;
}
.btn-outline-success:hover {
  background: var(--success-light);
  border-color: var(--success);
  color: var(--success);
}
.btn-outline-danger {
  color: var(--danger);
  border-color: var(--border-strong);
  background: transparent;
}
.btn-outline-danger:hover {
  background: var(--danger-light);
  border-color: var(--danger);
  color: var(--danger);
}
.btn-outline-warning {
  color: var(--warning);
  border-color: var(--border-strong);
  background: transparent;
}
.btn-outline-warning:hover {
  background: var(--warning-light);
  border-color: var(--warning);
  color: var(--warning);
}

/* ============================================
   FILTER BAR
   ============================================ */
.filter-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
  align-items: center;
}
.filter-bar .form-control,
.filter-bar .form-select {
  max-width: 200px;
  height: 34px;
  font-size: .8rem;
}

/* ============================================
   PAGINATION
   ============================================ */
.pagination-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 0;
}
.pagination-bar .btn {
  min-width: 72px;
}
.pagination-bar .small {
  font-size: .75rem;
  color: var(--text-muted);
  min-width: 90px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

/* ============================================
   MODAL
   ============================================ */
.modal-content {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow-xl);
}
.modal-header {
  padding: 18px 22px 16px;
  border-bottom: 1px solid var(--border);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.modal-title {
  font-weight: 700;
  font-size: .95rem;
  color: var(--text);
  letter-spacing: -0.2px;
}
.modal-body {
  padding: 20px 22px;
}
.modal-footer {
  padding: 14px 22px;
  border-top: 1px solid var(--border);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  gap: 8px;
}
.modal-backdrop.show { opacity: 0.5; }
.btn-close {
  opacity: 0.4;
  transition: opacity var(--duration) var(--ease);
}
.btn-close:hover { opacity: 0.7; }

/* ============================================
   SKELETON LOADER
   ============================================ */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--border) 0%,
    var(--border-light) 40%,
    var(--border) 80%
  );
  background-size: 300% 100%;
  animation: shimmer 1.6s ease-in-out infinite;
  border-radius: var(--radius-sm);
  height: 14px;
}
@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -100% 0; }
}

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */
.toast-container { z-index: 9998 !important; }
.toast {
  border-radius: var(--radius) !important;
  border: none !important;
  box-shadow: var(--shadow-lg) !important;
  font-size: .82rem;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  min-width: 260px;
  backdrop-filter: blur(12px);
}
.toast.text-bg-success {
  background: linear-gradient(135deg, #059669, #10b981) !important;
  color: #fff !important;
}
.toast.text-bg-danger {
  background: linear-gradient(135deg, #dc2626, #ef4444) !important;
  color: #fff !important;
}
.toast.text-bg-warning {
  background: linear-gradient(135deg, #d97706, #f59e0b) !important;
  color: #fff !important;
}
.toast.text-bg-info {
  background: linear-gradient(135deg, #0891b2, #06b6d4) !important;
  color: #fff !important;
}

/* ============================================
   LOGIN PAGE
   ============================================ */
.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(37,99,235,0.18) 0%, transparent 70%),
    linear-gradient(160deg, #0a0f1e 0%, #0d1117 40%, #111827 100%);
  padding: 24px;
  position: relative;
  overflow: hidden;
}
/* Subtle grid lines on login bg */
.login-wrapper::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.login-card {
  width: 100%;
  max-width: 400px;
  background: rgba(22,27,34,0.85);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.04);
  backdrop-filter: blur(20px);
  position: relative;
  animation: login-enter 0.5s var(--ease-out) both;
}
@keyframes login-enter {
  from { opacity: 0; transform: translateY(16px) scale(0.98); }
  to   { opacity: 1; transform: none; }
}
.login-card h3 {
  font-weight: 800;
  letter-spacing: -0.6px;
  margin-bottom: 4px;
  color: #e6edf3;
  font-size: 1.4rem;
}
.login-card .tagline {
  font-size: .78rem;
  color: #8b949e;
  letter-spacing: 0.3px;
}
.login-logo {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: linear-gradient(135deg, #2563eb, #3b82f6);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  box-shadow: 0 4px 16px rgba(37,99,235,0.4);
}

/* Dark form styles inside login */
.login-card .form-control {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.1);
  color: #e6edf3;
}
.login-card .form-control::placeholder { color: #4d5562; }
.login-card .form-control:focus {
  background: rgba(255,255,255,0.07);
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37,99,235,0.2);
  color: #e6edf3;
}
.login-card .form-label {
  color: #8b949e;
  font-size: .76rem;
  font-weight: 600;
}
.login-card .btn-primary {
  padding: 10px;
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: 0.2px;
  background: linear-gradient(135deg, #2563eb, #3b82f6);
  border: none;
  box-shadow: 0 4px 16px rgba(37,99,235,0.35);
}
.login-card .btn-primary:hover {
  box-shadow: 0 6px 20px rgba(37,99,235,0.45);
  transform: translateY(-1px);
}

/* ============================================
   TABS
   ============================================ */
.nav-tabs {
  border-bottom: 1px solid var(--border);
  gap: 2px;
}
.nav-tabs .nav-link {
  font-size: .8rem;
  font-weight: 600;
  color: var(--text-muted);
  border: none;
  border-bottom: 2px solid transparent;
  padding: 8px 14px;
  border-radius: 0;
  transition: all var(--duration) var(--ease);
  margin-bottom: -1px;
}
.nav-tabs .nav-link:hover { color: var(--text); }
.nav-tabs .nav-link.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  background: transparent;
}

/* ============================================
   DARK MODE COMPONENT OVERRIDES
   Supplement the --bs-* var overrides with explicit
   rules for Bootstrap components that need them.
   ============================================ */


/* ============================================
   CLIENT FORM — Tab UI + Sub-cards
   ============================================ */

/* ── Tab navigation bar ── */
.client-tab-nav {
  display: flex;
  border-bottom: 1px solid var(--border);
  background: var(--surface-alt);
  padding: 0 20px;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
  flex-shrink: 0;
}
.client-tab-nav::-webkit-scrollbar { display: none; }

.client-tab-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px 11px;
  font-size: .8rem;
  font-weight: 600;
  color: var(--text-muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--duration) var(--ease), border-color var(--duration) var(--ease);
  position: relative;
  margin-bottom: -1px;
}
.client-tab-btn i { font-size: .9rem; }
.client-tab-btn:hover { color: var(--text); }
.client-tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.client-tab-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  background: var(--primary);
  color: #fff;
  border-radius: 10px;
  font-size: .62rem;
  font-weight: 700;
  line-height: 1;
}

/* ── Tab panes ── */
.client-tab-pane { display: none; }
.client-tab-pane.active { display: block; }

/* ── Form body padding ── */
.client-form-body {
  padding: 22px 24px;
}

/* ── Form sections (within Basic Info) ── */
.client-form-section {
  padding-bottom: 20px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border-light);
}
.client-form-section-label {
  font-size: .67rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .9px;
  color: var(--text-muted);
  margin-bottom: 14px;
}

/* ── Section header row (Contacts / Addresses / Tax) ── */
.client-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.client-section-title {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: .82rem;
  font-weight: 700;
  color: var(--text);
}
.client-section-title i { color: var(--primary); font-size: .95rem; }
.client-section-count {
  font-size: .7rem;
  font-weight: 600;
  color: var(--text-muted);
}

/* ── Empty state hint ── */
.client-empty-hint {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 20px;
  background: var(--surface-alt);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: .8rem;
  margin-bottom: 4px;
}
.client-empty-hint i { font-size: 1.2rem; opacity: .5; flex-shrink: 0; }

/* ── Sub-card (contact / address / tax row) ── */
.client-sub-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px 18px;
  margin-bottom: 12px;
  transition: border-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}
.client-sub-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.client-sub-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-light);
}
.client-sub-card-label {
  font-size: .8rem;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 4px;
}
.client-sub-card-remove {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  width: 26px;
  height: 26px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: .7rem;
  transition: all var(--duration) var(--ease);
  flex-shrink: 0;
}
.client-sub-card-remove:hover {
  background: var(--danger-light);
  border-color: var(--danger);
  color: var(--danger);
}

/* ── Dark mode overrides ── */
[data-theme="dark"] .client-tab-nav { background: var(--surface-alt); }
[data-theme="dark"] .client-empty-hint { background: var(--surface-raised); border-color: var(--border-strong); }
[data-theme="dark"] .client-sub-card { background: var(--surface-raised); border-color: var(--border); }
[data-theme="dark"] .client-sub-card-header { border-bottom-color: var(--border); }
[data-theme="dark"] .client-form-section { border-bottom-color: var(--border); }


/* ============================================
   MODAL — Custom animation (replaces Bootstrap .fade)
   Modals use class="modal" without .fade so Bootstrap's
   _isTransitioning state machine never gets stuck.
   We apply our own entrance/exit via CSS.
   ============================================ */

/* Override Bootstrap's z-index so modal sits above sidebar (1050) */
.modal         { z-index: 1055; }
.modal-backdrop { z-index: 1050; }  /* sits just at/below sidebar level */

/* Smooth entrance when modal gets .show */
.modal.show .modal-dialog {
  animation: modal-enter 0.18s cubic-bezier(0.16, 1, 0.3, 1) both;
}
@keyframes modal-enter {
  from { opacity: 0; transform: translateY(-8px) scale(0.98); }
  to   { opacity: 1; transform: none; }
}

/* Ensure backdrop fades in (Bootstrap does this when .show is added) */
.modal-backdrop.show { opacity: 0.5; transition: opacity 0.15s ease; }

/* ============================================
   SCROLLBAR
   ============================================ */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 991.98px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.show { transform: translateX(0); }
  .sidebar-overlay.show { display: block; }
  .main-wrapper { margin-left: 0; }
  .content-area { padding: 16px 18px; }
  .app-header { padding: 0 18px; }
  .header-menu-btn { display: flex; }
  .header-page-title { display: none; }
}
@media (max-width: 767.98px) {
  .header-user-info { display: none; }
  .content-area { padding: 14px 14px; }
}
@media (max-width: 575.98px) {
  .page-header { flex-direction: column; align-items: flex-start; }
  .page-header-actions { width: 100%; }
  .filter-bar .form-control,
  .filter-bar .form-select { max-width: 100%; flex: 1; }
  .metric-card .metric-value { font-size: 1.4rem; }
  .login-card { padding: 28px 24px; }
}

/* ============================================
   UTILITIES
   ============================================ */
.cursor-pointer { cursor: pointer; }
.text-truncate-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.fw-mono {
  font-family: 'DM Mono', monospace;
  font-size: .85em;
}

/* Page content fade-in — class toggled by router.js on every navigation.
   IMPORTANT: No transform here — transform on a parent creates a new stacking
   context that repositions position:fixed descendants (Bootstrap modals),
   causing click targets to misalign with their visual position. */
#page-content.page-enter {
  animation: page-enter 0.22s var(--ease-out) both;
}
@keyframes page-enter {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* Alert overrides */
.alert {
  border-radius: var(--radius-sm);
  font-size: .82rem;
  border: 1px solid transparent;
}
.alert-danger {
  background: var(--danger-light);
  color: #b91c1c;
  border-color: rgba(239,68,68,0.2);
}
[data-theme="dark"] .alert-danger {
  background: rgba(239,68,68,0.12);
  color: #fca5a5;
  border-color: rgba(239,68,68,0.25);
}

/* Spinner */
.spinner-border-sm { width: .85rem; height: .85rem; border-width: 2px; }

/* Chart card */
.chart-card { padding: 20px 22px; }
.chart-card h6 {
  font-weight: 700;
  font-size: .8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: 16px;
}

/* Section heading inside modals/cards */
.section-heading {
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .8px;
  color: var(--text-muted);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 6px;
}
.section-heading i { font-size: .85rem; color: var(--primary); opacity: 0.7; }