/* ============================================================
   aSure Budget — Custom Design System
   No Bootstrap. All styles owned here.
   ============================================================ */

/* 1. CSS Custom Properties */
:root {
  --color-primary:        #2C71F6;
  --color-primary-hover:  #1B5FE0;
  --color-primary-bg:     #E8EFFF;
  --color-bg-page:        #F7F7F7;
  --color-bg-white:       #FFFFFF;
  --color-bg-row-alt:     #F9FAFB;
  --color-text-dark:      #202020;
  --color-text-muted:     #475569;
  --color-text-light:     #89898A;
  --color-border:         #E5E7EB;
  --color-border-strong:  #C4CDD5;
  --color-pending:        #F79300;
  --color-pending-bg:     #FFF2DF;
  --color-paid:           #2EC662;
  --color-paid-bg:        #E4FFE9;
  --color-rejected:       #F73B3B;
  --color-rejected-bg:    #FFE8E8;
  --color-approved:       #2C71F6;
  --color-approved-bg:    #E8EFFF;
  --color-active:         #2EC662;
  --color-active-bg:      #E4FFE9;
  --color-danger:         #F73B3B;
  --color-danger-bg:      #FFE8E8;
  --color-success:        #2EC662;
  --color-success-bg:     #E4FFE9;
  --color-warning:        #F79300;
  --color-warning-bg:     #FFF2DF;
  --color-info:           #2C71F6;
  --color-info-bg:        #E8EFFF;
  --space-1: 4px;  --space-2: 8px;  --space-3: 12px; --space-4: 16px;
  --space-5: 20px; --space-6: 24px; --space-8: 32px; --space-10: 40px;
  --radius-sm: 4px; --radius-md: 6px; --radius-lg: 12px;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.10);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
}

/* 2. CSS Reset / Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-text-dark);
  background: var(--color-bg-page);
}
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1,h2,h3,h4,h5,h6 { font-weight: 600; line-height: 1.3; color: var(--color-text-dark); }
p { margin: 0; }
img { max-width: 100%; display: block; }
button { font-family: var(--font-sans); }
input, select, textarea { font-family: var(--font-sans); }

/* 3. Layout Shell */
.app-shell { display: flex; height: 100vh; overflow: hidden; background: var(--color-bg-page); }
.main-area { flex: 1; display: flex; flex-direction: column; overflow: hidden; min-width: 0; }
.page-content { flex: 1; overflow-y: auto; padding: var(--space-6) var(--space-8); background: var(--color-bg-page); }
.page-wrap { max-width: 1200px; }
.page-header { margin-bottom: var(--space-6); }
.page-header h4, .page-header h5 { margin-bottom: 4px; }
.page-header p { color: var(--color-text-muted); font-size: 14px; }

/* 4. Sidebar */
.sidebar {
  width: 215px; min-width: 215px; height: 100vh;
  background: var(--color-bg-white);
  border-right: 1px solid var(--color-border);
  display: flex; flex-direction: column;
  overflow-y: auto; overflow-x: hidden;
  flex-shrink: 0; z-index: 20;
  transition: width 220ms cubic-bezier(0.4,0,0.2,1), min-width 220ms cubic-bezier(0.4,0,0.2,1);
}
/* Collapsed sidebar */
.app-shell.sidebar-collapsed .sidebar {
  width: 56px; min-width: 56px;
}
.app-shell.sidebar-collapsed .nav-group-header {
  display: none;
}
.app-shell.sidebar-collapsed .nav-group-header-icon {
  display: flex;
}
.app-shell.sidebar-collapsed .nav-group-items {
  display: block !important;
}
.app-shell.sidebar-collapsed .nav-item ::deep .nav-link {
  justify-content: center; padding: 0; width: 40px; margin: 0 auto;
}
.app-shell.sidebar-collapsed .signout-btn {
  justify-content: center; padding: 0; width: 40px; margin: 0 auto;
}
.app-shell.sidebar-collapsed .sidebar-bottom .nav-item {
  display: flex; justify-content: center;
}
.nav-brand {
  height: 56px; min-height: 56px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--space-4);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}
.app-shell.sidebar-collapsed .nav-brand {
  justify-content: center; padding: 0;
}
.brand-logo { font-size: 17px; font-weight: 700; color: var(--color-text-dark); text-decoration: none; letter-spacing: -0.3px; }
.brand-logo:hover { color: var(--color-text-dark); text-decoration: none; }
.sidebar-toggle { color: var(--color-text-muted); }
.sidebar-nav { flex: 1; overflow-y: auto; padding-bottom: var(--space-2); }
.sidebar-bottom {
  border-top: 1px solid var(--color-border);
  padding: var(--space-2) var(--space-2);
  flex-shrink: 0;
}
/* Icon-only group header when collapsed */
.nav-group-header-icon {
  display: none;
  align-items: center; justify-content: center;
  height: 36px; color: var(--color-text-muted);
  padding: var(--space-3) 0 2px;
}

/* 4. Navigation */
.nav-group { margin-top: var(--space-1); }
.nav-group-header {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; padding: var(--space-4) var(--space-4) 6px;
  background: none; border: none; cursor: pointer;
  font-size: 11px; font-weight: 600; color: var(--color-text-muted);
  letter-spacing: 0.06em; text-transform: uppercase;
}
.nav-group-header:hover { color: var(--color-text-dark); }
.nav-group-header svg { transition: transform 150ms; flex-shrink: 0; }
.nav-group-header.collapsed svg { transform: rotate(-90deg); }
.nav-group-items.collapsed { display: none; }
.nav-home { padding: var(--space-2) var(--space-2) var(--space-1); }
.nav-item { padding: 2px var(--space-2); }
.nav-item ::deep .nav-link,
.nav-item ::deep a.nav-link {
  display: flex; align-items: center; gap: 10px; height: 36px;
  padding: 0 10px; border-radius: var(--radius-sm);
  font-size: 14px; color: var(--color-text-muted);
  text-decoration: none;
  transition: background 120ms, color 120ms;
  white-space: nowrap;
}
.nav-item ::deep .nav-link:hover { background: #F1F5FF; color: var(--color-text-dark); text-decoration: none; }
.nav-item ::deep .nav-link.active { background: var(--color-primary); color: white; }
.nav-item ::deep .nav-link svg { flex-shrink: 0; opacity: 0.75; }
.nav-item ::deep .nav-link.active svg { opacity: 1; }
.sidebar-bottom .nav-item { padding: 2px 0; }
.signout-form { margin: 0; }
.signout-btn {
  display: flex; align-items: center; gap: 10px; height: 36px;
  padding: 0 10px; border-radius: var(--radius-sm);
  font-size: 14px; color: var(--color-text-muted);
  background: none; border: none; cursor: pointer;
  width: 100%; text-align: left;
  transition: background 120ms, color 120ms;
}
.signout-btn:hover { background: var(--color-danger-bg); color: var(--color-danger); }

/* Topbar */
.topbar {
  height: 56px; min-height: 56px;
  background: var(--color-bg-white);
  border-bottom: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--space-6);
  position: sticky; top: 0; z-index: 10; flex-shrink: 0;
}
.topbar-left { display: flex; align-items: center; gap: 10px; }
.topbar-right { display: flex; align-items: center; gap: var(--space-4); }
.page-title-text { font-size: 16px; font-weight: 700; color: var(--color-text-dark); text-transform: uppercase; letter-spacing: 0.3px; }
.topbar-count-badge {
  display: inline-flex; align-items: center; height: 22px; padding: 0 8px;
  border: 1px solid var(--color-primary); color: var(--color-primary);
  background: white; border-radius: var(--radius-sm); font-size: 12px; font-weight: 600;
}
.notif-bell {
  position: relative; color: var(--color-text-muted);
  width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md); background: none; border: none; cursor: pointer;
}
.notif-bell:hover { color: var(--color-text-dark); background: var(--color-bg-row-alt); }
.notif-badge {
  position: absolute; top: 2px; right: 2px;
  background: var(--color-danger); color: white;
  font-size: 10px; font-weight: 600;
  width: 16px; height: 16px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; line-height: 1;
}
.topbar-user {
  display: flex; align-items: center; gap: 10px;
  cursor: pointer; padding: 4px 8px; border-radius: var(--radius-md);
}
.topbar-user:hover { background: var(--color-bg-row-alt); }
.user-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--color-primary); color: white;
  font-size: 13px; font-weight: 600;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.user-info { display: flex; flex-direction: column; line-height: 1.3; }
.user-name { font-size: 13px; font-weight: 600; color: var(--color-text-dark); }
.user-role { font-size: 11px; color: var(--color-text-muted); display: flex; align-items: center; gap: 4px; }
.role-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--color-success); flex-shrink: 0; }
.user-chevron { color: var(--color-text-muted); }

/* 5. Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: 36px; padding: 0 var(--space-4);
  border-radius: var(--radius-md); font-size: 14px; font-weight: 500;
  cursor: pointer; transition: background 150ms, border-color 150ms, color 150ms;
  border: 1px solid transparent; text-decoration: none; white-space: nowrap;
  font-family: var(--font-sans);
}
.btn:focus { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; pointer-events: none; }
.btn-primary { background: var(--color-primary); color: white; border-color: var(--color-primary); }
.btn-primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); color: white; text-decoration: none; }
.btn-outline { background: white; border-color: var(--color-border-strong); color: var(--color-text-dark); }
.btn-outline:hover { border-color: var(--color-text-dark); color: var(--color-text-dark); text-decoration: none; }
.btn-ghost { background: transparent; border-color: transparent; color: var(--color-text-muted); }
.btn-ghost:hover { background: var(--color-bg-row-alt); color: var(--color-text-dark); }
.btn-danger { background: var(--color-danger); color: white; border-color: var(--color-danger); }
.btn-danger:hover { background: #D63030; border-color: #D63030; color: white; }
.btn-success { background: var(--color-success); color: white; border-color: var(--color-success); }
.btn-success:hover { background: #22a853; color: white; }
.btn-warning { background: var(--color-warning-bg); color: var(--color-warning); border-color: var(--color-warning); }
.btn-warning:hover { background: var(--color-warning); color: white; }
.btn-sm { height: 30px; font-size: 13px; padding: 0 var(--space-3); }
.btn-icon { width: 32px; height: 32px; padding: 0; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; background: none; border: none; cursor: pointer; color: var(--color-text-muted); transition: background 120ms, color 120ms; }
.btn-icon:hover { background: var(--color-bg-row-alt); color: var(--color-text-dark); }

/* 6. Form elements */
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-label { font-size: 13px; font-weight: 500; color: var(--color-text-dark); }
.form-hint { font-size: 12px; color: var(--color-text-muted); margin-top: 4px; }
.input, .select, .textarea {
  height: 42px; border: 1px solid var(--color-border);
  border-radius: var(--radius-md); padding: 0 12px;
  font-size: 14px; background: white; color: var(--color-text-dark);
  width: 100%; transition: border-color 120ms;
  font-family: var(--font-sans);
}
.textarea { height: auto; padding: 10px 12px; resize: vertical; min-height: 90px; }
.input::placeholder, .select option[value=""], .textarea::placeholder { color: var(--color-text-light); }
.input:focus, .select:focus, .textarea:focus {
  border-color: var(--color-primary); outline: none;
  box-shadow: 0 0 0 3px rgba(44,113,246,0.12);
}
.input:disabled, .select:disabled, .textarea:disabled { background: #F9FAFB; color: var(--color-text-muted); cursor: not-allowed; }
.select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%23475569' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 32px; }
.checkbox-row { display: flex; align-items: center; gap: 8px; cursor: pointer; }
.checkbox-row input[type="checkbox"] { width: 16px; height: 16px; cursor: pointer; accent-color: var(--color-primary); }
.validation-message { font-size: 12px; color: var(--color-danger); margin-top: 4px; }
.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); }
.form-grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: var(--space-5); }
/* Form section spacing */
.form-section { margin-bottom: var(--space-6); }
.form-section-title { font-size: 13px; font-weight: 600; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: var(--space-4); padding-bottom: var(--space-2); border-bottom: 1px solid var(--color-border); }
.mb-4-form { margin-bottom: var(--space-5) !important; }

/* 7. Data table */
.table-wrapper {
  background: white; border-radius: var(--radius-md);
  border: 1px solid var(--color-border); overflow: hidden;
}
.data-table { width: 100%; border-collapse: collapse; }
.data-table thead th {
  font-size: 12px; font-weight: 600; color: var(--color-text-muted);
  background: #FAFBFC; border-bottom: 1px solid var(--color-border);
  padding: 10px 16px; text-align: left; white-space: nowrap;
  text-transform: uppercase; letter-spacing: 0.04em;
}
.data-table tbody td {
  font-size: 14px; padding: 13px 16px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-dark); vertical-align: middle;
}
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover td { background: #F6F8FF; }
.data-table .col-no { width: 48px; color: var(--color-text-muted); font-size: 13px; }
.data-table .col-actions { width: 80px; text-align: right; }
.clickable-row { cursor: pointer; }
.empty-cell { text-align: center; padding: 40px 16px !important; color: var(--color-text-muted); font-size: 14px; }
.text-muted-cell { color: var(--color-text-muted); font-size: 13px; }
/* Overdue cell */
.overdue-text { color: var(--color-danger); font-weight: 500; }
.overdue-warn { color: var(--color-warning); font-weight: 500; }
/* Row accent for status */
.row-pending td:first-child { border-left: 3px solid var(--color-pending); }
.row-approved td:first-child { border-left: 3px solid var(--color-approved); }
.row-rejected td:first-child { border-left: 3px solid var(--color-rejected); }
.row-paid td:first-child { border-left: 3px solid var(--color-paid); }

/* 8. Status badges */
.badge {
  display: inline-flex; align-items: center; height: 28px; padding: 0 10px;
  border-radius: var(--radius-sm); font-size: 12px; font-weight: 600; border: 1px solid;
  white-space: nowrap;
}
.badge-pending   { color: var(--color-pending);  background: var(--color-pending-bg);  border-color: var(--color-pending);  }
.badge-paid      { color: var(--color-paid);     background: var(--color-paid-bg);     border-color: var(--color-paid);     }
.badge-rejected  { color: var(--color-rejected); background: var(--color-rejected-bg); border-color: var(--color-rejected); }
.badge-approved  { color: var(--color-approved); background: var(--color-approved-bg); border-color: var(--color-approved); }
.badge-active    { color: var(--color-active);   background: var(--color-active-bg);   border-color: var(--color-active);   }
.badge-inactive  { color: var(--color-text-muted); background: var(--color-bg-row-alt); border-color: var(--color-border); }
.badge-draft     { color: var(--color-text-muted); background: #F1F3F9; border-color: var(--color-border); }
.badge-role      { color: var(--color-text-dark); background: #F1F3F9; border-color: var(--color-border); font-size: 11px; height: 22px; }
.badge-info      { color: var(--color-info); background: var(--color-info-bg); border-color: var(--color-info); }
.badge-warning   { color: var(--color-warning); background: var(--color-warning-bg); border-color: var(--color-warning); }
.badge-sm { height: 22px; font-size: 11px; padding: 0 8px; }

/* 9. Alerts */
.alert {
  display: flex; align-items: flex-start; gap: var(--space-3);
  padding: 12px 16px; border-radius: var(--radius-md); font-size: 14px;
  border: 1px solid;
}
.alert-info    { background: var(--color-info-bg);    border-color: var(--color-info);    color: var(--color-info);    }
.alert-success { background: var(--color-success-bg); border-color: var(--color-success); color: #166534; }
.alert-error   { background: var(--color-danger-bg);  border-color: var(--color-danger);  color: var(--color-danger);  }
.alert-warning { background: var(--color-warning-bg); border-color: var(--color-warning); color: #92400e; }

/* 10. Modal */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,0.35);
  z-index: 1000; display: flex; align-items: center; justify-content: center;
  padding: var(--space-4);
}
.modal {
  background: white; border-radius: var(--radius-lg);
  padding: 32px; width: 100%; max-width: 560px;
  max-height: 90vh; overflow-y: auto;
  box-shadow: var(--shadow-lg); position: relative;
}
.modal-sm { max-width: 400px; }
.modal-lg { max-width: 720px; }
.modal-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: var(--space-6); padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}
.modal-title { font-size: 18px; font-weight: 600; color: var(--color-text-dark); }
.modal-close { color: var(--color-text-muted); }
.modal-body { margin-bottom: var(--space-2); }
.modal-footer {
  margin-top: var(--space-6); padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  display: flex; justify-content: flex-end; gap: var(--space-3);
}

/* 11. Pagination */
.pagination { display: flex; gap: var(--space-1); justify-content: flex-end; align-items: center; margin-top: var(--space-4); }
.page-btn {
  width: 32px; height: 32px; border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); background: white; font-size: 13px;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  color: var(--color-text-dark); transition: all 120ms; font-family: var(--font-sans);
}
.page-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.page-btn.active { background: var(--color-primary); color: white; border-color: var(--color-primary); }
.page-btn:disabled { opacity: 0.4; cursor: default; pointer-events: none; }
.page-ellipsis { width: 32px; height: 32px; display: flex; align-items: center; justify-content: center; font-size: 13px; color: var(--color-text-muted); }

/* 12. Toast */
.toast-container { position: fixed; top: 20px; right: 20px; z-index: 2000; display: flex; flex-direction: column; gap: 10px; pointer-events: none; }
.toast {
  background: white; border-radius: var(--radius-md); box-shadow: 0 4px 20px rgba(0,0,0,0.12), 0 1px 4px rgba(0,0,0,0.06);
  border-left: 4px solid; padding: 14px 16px; min-width: 320px; max-width: 420px;
  display: flex; gap: 12px; align-items: flex-start;
  animation: toastIn 220ms cubic-bezier(0.34,1.56,0.64,1);
  pointer-events: all;
}
.toast-success { border-left-color: var(--color-success); }
.toast-error   { border-left-color: var(--color-danger); }
.toast-warning { border-left-color: var(--color-warning); }
.toast-info    { border-left-color: var(--color-info); }
@keyframes toastIn { from { transform: translateX(24px) scale(0.97); opacity: 0; } to { transform: translateX(0) scale(1); opacity: 1; } }
.toast-icon { flex-shrink: 0; margin-top: 1px; }
.toast-content { flex: 1; min-width: 0; }
.toast-title { font-size: 14px; font-weight: 600; color: var(--color-text-dark); }
.toast-message { font-size: 13px; color: var(--color-text-muted); margin-top: 3px; line-height: 1.5; }
.toast-close {
  flex-shrink: 0; background: none; border: none; cursor: pointer;
  color: var(--color-text-light); padding: 2px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  transition: color 120ms, background 120ms; margin-top: 1px;
}
.toast-close:hover { color: var(--color-text-dark); background: var(--color-bg-row-alt); }

/* 13. Card */
.card { background: white; border: 1px solid var(--color-border); border-radius: var(--radius-md); }
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-4) var(--space-5); border-bottom: 1px solid var(--color-border);
}
.card-header-title { font-size: 15px; font-weight: 600; color: var(--color-text-dark); }
.card-body { padding: var(--space-5); }
.card-footer { padding: var(--space-4) var(--space-5); border-top: 1px solid var(--color-border); display: flex; justify-content: flex-end; gap: var(--space-3); }

/* 14. Tabs */
.tab-bar { display: flex; gap: 0; border-bottom: 1px solid var(--color-border); margin-bottom: 20px; }
.tab {
  padding: 10px 16px; font-size: 14px; color: var(--color-text-muted);
  cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px;
  white-space: nowrap; background: none; border-top: none; border-left: none; border-right: none;
  font-family: var(--font-sans); transition: color 120ms;
}
.tab:hover { color: var(--color-text-dark); }
.tab.active { color: var(--color-primary); border-bottom-color: var(--color-primary); font-weight: 500; }
.tab-pill {
  border: 1px solid var(--color-primary) !important; color: var(--color-primary) !important;
  border-radius: 20px !important; padding: 4px 14px !important; font-size: 12px !important;
  background: white; margin-bottom: 0 !important; align-self: center;
  border-top: 1px solid var(--color-primary) !important;
  border-left: 1px solid var(--color-primary) !important;
  border-right: 1px solid var(--color-primary) !important;
  border-bottom: 1px solid var(--color-primary) !important;
  height: 28px;
}
.tab-pill.active { background: var(--color-primary) !important; color: white !important; }

/* 15. Topbar count badge & search */
.toolbar { display: flex; align-items: center; gap: var(--space-3); margin-bottom: var(--space-5); flex-wrap: wrap; }
.toolbar-right { margin-left: auto; display: flex; gap: var(--space-3); align-items: center; }
.search-box {
  display: flex; align-items: center; gap: 8px;
  border: 1px solid var(--color-border); border-radius: var(--radius-md);
  padding: 0 12px; background: white; height: 36px; min-width: 260px;
}
.search-box:focus-within { border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(44,113,246,0.12); }
.search-box input { border: none; outline: none; font-size: 14px; color: var(--color-text-dark); background: transparent; width: 100%; font-family: var(--font-sans); }
.search-box input::placeholder { color: var(--color-text-light); }
.search-box svg { color: var(--color-text-muted); flex-shrink: 0; }

/* Filter panel */
.filter-panel { background: white; border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-5); margin-bottom: var(--space-5); }
.filter-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: var(--space-4); }
.filter-footer { display: flex; gap: var(--space-3); margin-top: var(--space-4); padding-top: var(--space-4); border-top: 1px solid var(--color-border); }

/* Spinner */
.spinner-wrap { display: flex; justify-content: center; padding: 48px; }
.spinner {
  width: 28px; height: 28px; border: 3px solid var(--color-border);
  border-top-color: var(--color-primary); border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
.spinner-sm { width: 16px; height: 16px; border-width: 2px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* 16. Utility classes */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.justify-center { justify-content: center; }
.gap-1 { gap: var(--space-1); } .gap-2 { gap: var(--space-2); } .gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); } .gap-5 { gap: var(--space-5); } .gap-6 { gap: var(--space-6); }
.w-full { width: 100%; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.text-muted { color: var(--color-text-muted) !important; }
.text-danger { color: var(--color-danger) !important; }
.text-success { color: var(--color-success) !important; }
.text-primary { color: var(--color-primary) !important; }
.text-sm { font-size: 13px; }
.text-xs { font-size: 12px; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-mono { font-family: ui-monospace, 'SF Mono', Menlo, monospace; }
.mt-1 { margin-top: var(--space-1); } .mt-2 { margin-top: var(--space-2); } .mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); } .mt-5 { margin-top: var(--space-5); } .mt-6 { margin-top: var(--space-6); }
.mb-1 { margin-bottom: var(--space-1); } .mb-2 { margin-bottom: var(--space-2); } .mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); } .mb-5 { margin-bottom: var(--space-5); } .mb-6 { margin-bottom: var(--space-6); }
.mr-1 { margin-right: var(--space-1); } .mr-2 { margin-right: var(--space-2); } .mr-3 { margin-right: var(--space-3); } .mr-4 { margin-right: var(--space-4); }
.ml-1 { margin-left: var(--space-1); } .ml-2 { margin-left: var(--space-2); } .ml-3 { margin-left: var(--space-3); } .ml-4 { margin-left: var(--space-4); }
.p-4 { padding: var(--space-4); } .p-5 { padding: var(--space-5); } .p-6 { padding: var(--space-6); }
.hidden { display: none; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border-width: 0; }
.text-end { text-align: right; }
.text-center { text-align: center; }
.nowrap { white-space: nowrap; }
.tabular { font-variant-numeric: tabular-nums; }
.divider { border: none; border-top: 1px solid var(--color-border); margin: var(--space-5) 0; }
.overrun-border { border-left: 3px solid var(--color-warning); padding-left: var(--space-3); }

/* 17. Blazor-specific */
#blazor-error-ui {
  background: #FEF2F2; border-top: 1px solid var(--color-danger);
  color: var(--color-danger); font-size: 13px; padding: 10px 20px;
  position: fixed; bottom: 0; left: 0; width: 100%; z-index: 9999; display: none;
}
#blazor-error-ui .dismiss { cursor: pointer; position: absolute; right: 16px; top: 50%; transform: translateY(-50%); }
.blazor-error-boundary { background: var(--color-danger-bg); color: var(--color-danger); padding: 12px 16px; border-radius: var(--radius-md); }
.blazor-error-boundary::after { content: "An error has occurred."; }