/*
 * BuggedBrain Admin Theme — theme layer for Bootstrap 5.3.8
 * In a project: assets/styles/admin-theme.css
 * Load order: bootstrap.min.css → admin-tokens.css (the tokens) → this file → the project's admin-custom.css
 * Every colour, size and radius here is a token (var(--…)); change values in tokens.json, not here.
 * The only literal colours are inside Bootstrap's SVG data-URIs (checkmarks, switch knobs), marked "keep in sync".
 */

/* ===================================================================
   1. Bootstrap's root variables → tokens
   =================================================================== */
:root,
[data-bs-theme] {
  --bs-font-sans-serif: var(--font-sans);
  --bs-font-monospace: var(--font-mono);
  --bs-body-font-family: var(--font-sans);
  --bs-body-font-size: 0.9375rem;
  --bs-body-font-weight: 400;
  --bs-body-line-height: 1.467;
  --bs-body-color: var(--text);
  --bs-body-bg: var(--bg);
  --bs-emphasis-color: var(--text);
  --bs-secondary-color: var(--text-muted);
  --bs-secondary-bg: var(--surface-sunken);
  --bs-tertiary-color: var(--text-muted);
  --bs-tertiary-bg: var(--surface);
  --bs-heading-color: var(--text);
  --bs-link-color: var(--link);
  --bs-link-hover-color: var(--accent-hover);
  --bs-code-color: var(--text);
  --bs-highlight-color: var(--text);
  --bs-highlight-bg: var(--warning-soft);
  --bs-border-width: 1px;
  --bs-border-color: var(--border);
  --bs-border-color-translucent: var(--border);
  --bs-border-radius-sm: var(--radius-sm);
  --bs-border-radius: var(--radius);
  --bs-border-radius-lg: var(--radius-lg);
  --bs-border-radius-xl: var(--radius-xl);
  --bs-border-radius-xxl: var(--radius-xl);
  --bs-border-radius-pill: var(--radius-pill);
  --bs-box-shadow-sm: var(--shadow-sm);
  --bs-box-shadow: var(--shadow);
  --bs-box-shadow-lg: var(--shadow-lg);
  --bs-box-shadow-inset: none;
  --bs-focus-ring-width: 2px;
  --bs-focus-ring-opacity: 1;
  --bs-focus-ring-color: var(--focus-ring);

  --bs-primary: var(--accent);
  --bs-secondary: var(--text-muted);
  --bs-success: var(--success);
  --bs-info: var(--info);
  --bs-warning: var(--warning);
  --bs-danger: var(--danger);

  --bs-primary-text-emphasis: var(--accent);
  --bs-secondary-text-emphasis: var(--text);
  --bs-success-text-emphasis: var(--success);
  --bs-info-text-emphasis: var(--info);
  --bs-warning-text-emphasis: var(--warning);
  --bs-danger-text-emphasis: var(--danger);

  --bs-primary-bg-subtle: var(--accent-soft);
  --bs-secondary-bg-subtle: var(--surface-sunken);
  --bs-success-bg-subtle: var(--success-soft);
  --bs-info-bg-subtle: var(--info-soft);
  --bs-warning-bg-subtle: var(--warning-soft);
  --bs-danger-bg-subtle: var(--danger-soft);

  --bs-primary-border-subtle: var(--accent-soft);
  --bs-secondary-border-subtle: var(--border);
  --bs-success-border-subtle: var(--success-soft);
  --bs-info-border-subtle: var(--info-soft);
  --bs-warning-border-subtle: var(--warning-soft);
  --bs-danger-border-subtle: var(--danger-soft);

  --bs-form-valid-color: var(--success);
  --bs-form-valid-border-color: var(--success);
  --bs-form-invalid-color: var(--danger);
  --bs-form-invalid-border-color: var(--danger);
  /* The --bs-*-rgb triplets (used by .text-*, .bg-*, a, .table) are filled in by admin.js from these tokens. */
}

/* Utilities that Bootstrap builds from -rgb triplets: point them straight at the tokens. */
a { color: var(--link); }
a:hover { color: var(--accent-hover); }
.text-primary { color: var(--accent) !important; }
.text-success { color: var(--success) !important; }
.text-warning { color: var(--warning) !important; }
.text-danger { color: var(--danger) !important; }
.text-info { color: var(--info) !important; }
.text-body-secondary, .text-muted, .text-secondary { color: var(--text-muted) !important; }
.text-body, .text-body-emphasis { color: var(--text) !important; }
.bg-body { background-color: var(--bg) !important; }
.bg-body-secondary { background-color: var(--surface-sunken) !important; }
.bg-body-tertiary { background-color: var(--surface) !important; }
.text-bg-primary { color: var(--on-accent) !important; background-color: var(--accent) !important; }
.text-bg-success { color: var(--on-status) !important; background-color: var(--success) !important; }
.text-bg-warning { color: var(--on-status) !important; background-color: var(--warning) !important; }
.text-bg-danger { color: var(--on-status) !important; background-color: var(--danger) !important; }
.text-bg-info { color: var(--on-status) !important; background-color: var(--info) !important; }
.text-bg-secondary { color: var(--text-muted) !important; background-color: var(--surface-sunken) !important; }
.border-primary { border-color: var(--accent) !important; }
.border-danger { border-color: var(--danger) !important; }
.link-primary { color: var(--accent) !important; }
.tabular-nums { font-variant-numeric: tabular-nums; }
.text-mono { font-family: var(--font-mono); font-size: 0.8125rem; }

/* ===================================================================
   2. Base type
   =================================================================== */
h1, .h1 { font-size: 1.5rem; line-height: 2rem; font-weight: 600; letter-spacing: -0.01em; }
h2, .h2 { font-size: 1.125rem; line-height: 1.625rem; font-weight: 600; }
h3, .h3 { font-size: 1rem; line-height: 1.5rem; font-weight: 600; }
h4, .h4 { font-size: 0.9375rem; line-height: 1.375rem; font-weight: 600; }
h5, .h5, h6, .h6 { font-size: 0.875rem; line-height: 1.25rem; font-weight: 600; }
b, strong { font-weight: 600; }
small, .small { font-size: 0.8125rem; }
code, kbd, samp, pre { font-family: var(--font-mono); font-size: 0.8125rem; }
pre { background: var(--surface-sunken); border-radius: var(--radius); padding: var(--space-3); }
hr { border-color: var(--border); opacity: 1; }
::selection { background: var(--accent-soft); color: var(--text); }

/* Show an element in one theme only: theme-toggle labels and icons. */
[data-bs-theme="dark"] .only-light { display: none !important; }
:root:not([data-bs-theme="dark"]) .only-dark { display: none !important; }

/* ===================================================================
   3. Focus: one solid ring everywhere, instead of Bootstrap's glow
   =================================================================== */
:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }
.btn:focus-visible,
.btn-check:focus-visible + .btn,
.btn-close:focus-visible,
.nav-link:focus-visible,
.page-link:focus-visible,
.dropdown-item:focus-visible,
.list-group-item-action:focus-visible {
  box-shadow: none;
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}
.btn-close:focus, .page-link:focus, .nav-link:focus { box-shadow: none; }
.btn-close:focus:not(:focus-visible) { opacity: var(--bs-btn-close-opacity); }
.form-control:focus,
.form-select:focus,
.form-check-input:focus {
  box-shadow: none;
  border-color: var(--accent);
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}
.form-control.is-invalid:focus,
.form-select.is-invalid:focus,
.form-check-input.is-invalid:focus { outline-color: var(--danger); border-color: var(--danger); box-shadow: none; }

/* ===================================================================
   4. Buttons
   =================================================================== */
.btn {
  --bs-btn-padding-x: 0.875rem;
  --bs-btn-padding-y: 0.4375rem;
  --bs-btn-font-size: 0.9375rem;
  --bs-btn-font-weight: 500;
  --bs-btn-line-height: 1.467;
  --bs-btn-border-radius: var(--radius);
  --bs-btn-disabled-opacity: 0.5;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  white-space: nowrap;
}
.btn > .bi { font-size: 1rem; line-height: 1; }
.btn:disabled, .btn.disabled { cursor: not-allowed; pointer-events: auto; }
.btn-sm {
  --bs-btn-padding-x: 0.625rem;
  --bs-btn-padding-y: 0.25rem;
  --bs-btn-font-size: 0.8125rem;
  --bs-btn-border-radius: var(--radius-sm);
  gap: var(--space-1);
}
.btn-sm > .bi { font-size: 0.875rem; }
.btn-lg {
  --bs-btn-padding-x: 1.125rem;
  --bs-btn-padding-y: 0.5625rem;
  --bs-btn-font-size: 1rem;
  --bs-btn-border-radius: var(--radius-lg);
}

.btn-primary {
  --bs-btn-color: var(--on-accent);
  --bs-btn-bg: var(--accent);
  --bs-btn-border-color: var(--accent);
  --bs-btn-hover-color: var(--on-accent);
  --bs-btn-hover-bg: var(--accent-hover);
  --bs-btn-hover-border-color: var(--accent-hover);
  --bs-btn-active-color: var(--on-accent);
  --bs-btn-active-bg: var(--accent-hover);
  --bs-btn-active-border-color: var(--accent-hover);
  --bs-btn-disabled-color: var(--on-accent);
  --bs-btn-disabled-bg: var(--accent);
  --bs-btn-disabled-border-color: var(--accent);
}
/* The neutral button: every action that is not the page's one primary action. */
.btn-secondary,
.btn-outline-secondary,
.btn-light {
  --bs-btn-color: var(--text);
  --bs-btn-bg: var(--surface);
  --bs-btn-border-color: var(--border-input);
  --bs-btn-hover-color: var(--text);
  --bs-btn-hover-bg: var(--surface-hover);
  --bs-btn-hover-border-color: var(--border-input);
  --bs-btn-active-color: var(--text);
  --bs-btn-active-bg: var(--surface-hover);
  --bs-btn-active-border-color: var(--border-input);
  --bs-btn-disabled-color: var(--text);
  --bs-btn-disabled-bg: var(--surface);
  --bs-btn-disabled-border-color: var(--border-input);
}
.btn-outline-primary {
  --bs-btn-color: var(--accent);
  --bs-btn-bg: transparent;
  --bs-btn-border-color: var(--accent);
  --bs-btn-hover-color: var(--accent);
  --bs-btn-hover-bg: var(--accent-soft);
  --bs-btn-hover-border-color: var(--accent);
  --bs-btn-active-color: var(--accent);
  --bs-btn-active-bg: var(--accent-soft);
  --bs-btn-active-border-color: var(--accent);
  --bs-btn-disabled-color: var(--accent);
  --bs-btn-disabled-bg: transparent;
  --bs-btn-disabled-border-color: var(--accent);
}
.btn-danger, .btn-success, .btn-warning, .btn-info {
  --bs-btn-color: var(--on-status);
  --bs-btn-bg: var(--status);
  --bs-btn-border-color: var(--status);
  --bs-btn-hover-color: var(--on-status);
  --bs-btn-hover-bg: color-mix(in srgb, var(--status) 84%, var(--text));
  --bs-btn-hover-border-color: color-mix(in srgb, var(--status) 84%, var(--text));
  --bs-btn-active-color: var(--on-status);
  --bs-btn-active-bg: color-mix(in srgb, var(--status) 84%, var(--text));
  --bs-btn-active-border-color: color-mix(in srgb, var(--status) 84%, var(--text));
  --bs-btn-disabled-color: var(--on-status);
  --bs-btn-disabled-bg: var(--status);
  --bs-btn-disabled-border-color: var(--status);
}
.btn-danger, .btn-outline-danger { --status: var(--danger); --status-soft: var(--danger-soft); }
.btn-success, .btn-outline-success { --status: var(--success); --status-soft: var(--success-soft); }
.btn-warning, .btn-outline-warning { --status: var(--warning); --status-soft: var(--warning-soft); }
.btn-info, .btn-outline-info { --status: var(--info); --status-soft: var(--info-soft); }
.btn-outline-danger, .btn-outline-success, .btn-outline-warning, .btn-outline-info {
  --bs-btn-color: var(--status);
  --bs-btn-bg: var(--surface);
  --bs-btn-border-color: var(--status);
  --bs-btn-hover-color: var(--status);
  --bs-btn-hover-bg: var(--status-soft);
  --bs-btn-hover-border-color: var(--status);
  --bs-btn-active-color: var(--status);
  --bs-btn-active-bg: var(--status-soft);
  --bs-btn-active-border-color: var(--status);
  --bs-btn-disabled-color: var(--status);
  --bs-btn-disabled-bg: var(--surface);
  --bs-btn-disabled-border-color: var(--status);
}
/* Ghost: toolbar and icon buttons with no frame until hovered. */
.btn-ghost {
  --bs-btn-color: var(--text-muted);
  --bs-btn-bg: transparent;
  --bs-btn-border-color: transparent;
  --bs-btn-hover-color: var(--text);
  --bs-btn-hover-bg: var(--surface-hover);
  --bs-btn-hover-border-color: transparent;
  --bs-btn-active-color: var(--text);
  --bs-btn-active-bg: var(--surface-hover);
  --bs-btn-active-border-color: transparent;
  --bs-btn-disabled-color: var(--text-muted);
  --bs-btn-disabled-bg: transparent;
  --bs-btn-disabled-border-color: transparent;
}
.btn-link {
  --bs-btn-color: var(--link);
  --bs-btn-hover-color: var(--accent-hover);
  --bs-btn-active-color: var(--accent-hover);
  --bs-btn-disabled-color: var(--text-muted);
  --bs-btn-font-weight: 500;
  text-decoration: none;
}
.btn-link:hover { text-decoration: underline; }
/* Square icon-only button; give it an aria-label. */
.btn-icon { --bs-btn-padding-x: 0; width: 2.375rem; height: 2.375rem; position: relative; }
.btn-icon.btn-sm { width: 1.8125rem; height: 1.8125rem; }
.btn-icon > .bi { font-size: 1.125rem; }
.btn-icon.btn-sm > .bi { font-size: 0.9375rem; }
.btn-group > .btn { gap: var(--space-1); }
/* Segmented control: btn-group of .btn-secondary with .btn-check radios or .active */
.btn-check:checked + .btn-secondary,
.btn-secondary.active {
  --bs-btn-active-color: var(--accent);
  --bs-btn-active-bg: var(--accent-soft);
  --bs-btn-active-border-color: var(--accent);
  position: relative;
  z-index: 1;
}
.btn .spinner-border { --bs-spinner-width: 1rem; --bs-spinner-height: 1rem; --bs-spinner-border-width: 0.15em; }

/* ===================================================================
   5. Forms
   =================================================================== */
.form-label { font-size: 0.875rem; line-height: 1.25rem; font-weight: 500; margin-bottom: var(--space-2); color: var(--text); }
.form-label-optional { margin-left: var(--space-1); font-weight: 400; color: var(--text-muted); }
.form-text { font-size: 0.8125rem; line-height: 1.125rem; margin-top: 0.375rem; color: var(--text-muted); }
legend { font-size: 1rem; line-height: 1.5rem; font-weight: 600; }

.form-control,
.form-select {
  font-size: 0.9375rem;
  line-height: 1.467;
  padding: 0.4375rem 0.75rem;
  color: var(--text);
  background-color: var(--surface);
  border-color: var(--border-input);
  border-radius: var(--radius);
}
.form-select { padding-right: 2.25rem; }
.form-control::placeholder { color: var(--text-muted); opacity: 1; }
.form-control:disabled, .form-select:disabled { background-color: var(--surface-sunken); opacity: 0.7; cursor: not-allowed; }
.form-control[readonly] { background-color: var(--surface-sunken); }
.form-control-plaintext { color: var(--text); }
.form-control-sm, .form-select-sm { font-size: 0.8125rem; padding-top: 0.25rem; padding-bottom: 0.25rem; border-radius: var(--radius-sm); }
.form-control-lg, .form-select-lg { font-size: 1rem; padding-top: 0.5625rem; padding-bottom: 0.5625rem; border-radius: var(--radius-lg); }
.form-control[type="file"]::file-selector-button { background-color: var(--surface-sunken); color: var(--text); }
.form-control:hover:not(:disabled):not([type="file"])::file-selector-button { background-color: var(--surface-hover); }
textarea.form-control { min-height: 5.5rem; }

/* Invalid and valid: colour + message, no icon inside the field. */
.form-control.is-invalid, .was-validated .form-control:invalid,
.form-control.is-valid, .was-validated .form-control:valid { background-image: none; padding-right: 0.75rem; }
.form-select.is-invalid, .was-validated .form-select:invalid,
.form-select.is-valid, .was-validated .form-select:valid { --bs-form-select-bg-icon: none; padding-right: 2.25rem; }
.form-control.is-invalid, .form-select.is-invalid, .form-check-input.is-invalid { border-color: var(--danger); }
.form-control.is-valid, .form-select.is-valid { border-color: var(--border-input); }
.invalid-feedback {
  font-size: 0.8125rem;
  line-height: 1.125rem;
  margin-top: 0.375rem;
  color: var(--danger);
  gap: var(--space-1);
  align-items: flex-start;
}
.invalid-feedback > .bi { flex: none; line-height: 1.125rem; }

.input-group-text { background-color: var(--surface-sunken); border-color: var(--border-input); color: var(--text-muted); font-size: 0.9375rem; border-radius: var(--radius); }
.input-group > .btn { position: relative; z-index: 2; }

/* Field with a leading icon (search). */
.input-icon { position: relative; }
.input-icon > .bi { position: absolute; left: 0.75rem; top: 50%; transform: translateY(-50%); color: var(--text-muted); pointer-events: none; font-size: 1rem; }
.input-icon > .form-control { padding-left: 2.25rem; }
.input-icon > .form-control-sm { padding-left: 2rem; }
.input-icon > .form-control-sm + .bi, .input-icon > .bi:has(+ .form-control-sm) { left: 0.625rem; font-size: 0.875rem; }

/* Checkbox, radio, switch */
.form-check { min-height: 1.375rem; margin-bottom: var(--space-2); }
.form-check-label { line-height: 1.375rem; }
.form-check-input {
  width: 1.125rem;
  height: 1.125rem;
  margin-top: 0.125rem;
  background-color: var(--surface);
  border: 1px solid var(--border-input);
}
.form-check-input[type="checkbox"] { border-radius: var(--radius-sm); }
.form-check-input:checked,
.form-check-input[type="checkbox"]:indeterminate { background-color: var(--accent); border-color: var(--accent); }
.form-check-input:disabled { opacity: 0.5; }
.form-check-input:disabled ~ .form-check-label { opacity: 0.6; }
.form-check-input:active { filter: none; }
/* Dark theme: the checkmark and radio dot take on-accent (#0b1416) — keep in sync with the on-accent token. */
[data-bs-theme="dark"] .form-check-input:checked[type="checkbox"] {
  --bs-form-check-bg-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%230b1416' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='m6 10 3 3 6-6'/%3e%3c/svg%3e");
}
[data-bs-theme="dark"] .form-check-input:checked[type="radio"] {
  --bs-form-check-bg-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='2' fill='%230b1416'/%3e%3c/svg%3e");
}
[data-bs-theme="dark"] .form-check-input[type="checkbox"]:indeterminate {
  --bs-form-check-bg-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%230b1416' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='M6 10h8'/%3e%3c/svg%3e");
}
.form-switch { padding-left: 2.75rem; }
.form-switch .form-check-input { width: 2.25rem; height: 1.25rem; margin-top: 0.0625rem; margin-left: -2.75rem; border-radius: var(--radius-pill); }
/* Switch knob: border-input when off, on-accent when on — keep in sync with those tokens (light #7f8792 / #ffffff, dark #6c7480 / #0b1416). */
.form-switch .form-check-input,
.form-switch .form-check-input:focus,
[data-bs-theme] .form-switch .form-check-input:not(:checked):not(:focus) {
  --bs-form-switch-bg: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='%237f8792'/%3e%3c/svg%3e");
}
[data-bs-theme="dark"] .form-switch .form-check-input,
[data-bs-theme="dark"] .form-switch .form-check-input:focus,
[data-bs-theme="dark"] .form-switch .form-check-input:not(:checked):not(:focus) {
  --bs-form-switch-bg: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='%236c7480'/%3e%3c/svg%3e");
}
.form-switch .form-check-input:checked {
  --bs-form-switch-bg: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='%23fff'/%3e%3c/svg%3e");
}
[data-bs-theme="dark"] .form-switch .form-check-input:checked {
  --bs-form-switch-bg: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='%230b1416'/%3e%3c/svg%3e");
}

/* Form layout */
.form-narrow { max-width: 40rem; }
.form-section + .form-section { margin-top: var(--space-4); padding-top: var(--space-4); border-top: 1px solid var(--border); }
.form-section-title { font-size: 1rem; line-height: 1.5rem; font-weight: 600; margin: 0 0 var(--space-3); }
.form-section-title:has(+ .form-section-text) { margin-bottom: var(--space-1); }
.form-section-text { color: var(--text-muted); font-size: 0.8125rem; line-height: 1.125rem; margin: 0 0 var(--space-3); }
.form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); }
.card-footer.form-actions { padding: var(--space-3); }
.form-actions-sticky { position: sticky; bottom: 0; z-index: 3; background: var(--surface); border-top: 1px solid var(--border); padding: var(--space-3); }

/* File upload drop zone (wrap a file input in label.file-drop) */
.file-drop {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-4) var(--space-3);
  text-align: center;
  background: var(--surface);
  border: 1px dashed var(--border-input);
  border-radius: var(--radius-lg);
  color: var(--text);
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}
.file-drop:hover, .file-drop.is-dragover { background: var(--accent-soft); border-color: var(--accent); }
.file-drop:focus-within { outline: 2px solid var(--focus-ring); outline-offset: 2px; }
.file-drop.is-invalid { border-color: var(--danger); }
.file-drop-icon { font-size: 1.5rem; line-height: 1; color: var(--text-muted); margin-bottom: var(--space-1); }
.file-drop:hover .file-drop-icon, .file-drop.is-dragover .file-drop-icon { color: var(--accent); }
.file-drop-text { font-size: 0.9375rem; }
.file-drop-browse { color: var(--link); font-weight: 500; text-decoration: underline; text-underline-offset: 2px; }
.file-drop-hint { font-size: 0.8125rem; color: var(--text-muted); }
.file-list { list-style: none; margin: var(--space-2) 0 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-1); }
.file-list:empty { display: none; }
.file-list-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.375rem 0.375rem 0.375rem 0.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.875rem;
}
.file-list-item > .bi { color: var(--text-muted); }
.file-list-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-list-size { color: var(--text-muted); font-size: 0.8125rem; font-variant-numeric: tabular-nums; }

/* ===================================================================
   6. Cards and stat tiles
   =================================================================== */
.card {
  --bs-card-spacer-y: var(--space-3);
  --bs-card-spacer-x: var(--space-3);
  --bs-card-title-spacer-y: var(--space-2);
  --bs-card-title-color: var(--text);
  --bs-card-subtitle-color: var(--text-muted);
  --bs-card-border-width: 1px;
  --bs-card-border-color: var(--border);
  --bs-card-border-radius: var(--radius-lg);
  --bs-card-inner-border-radius: calc(var(--radius-lg) - 1px);
  --bs-card-cap-padding-y: 0.75rem;
  --bs-card-cap-padding-x: var(--space-3);
  --bs-card-cap-bg: var(--surface);
  --bs-card-cap-color: var(--text);
  --bs-card-bg: var(--surface);
  --bs-card-color: var(--text);
}
.card-header { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); min-height: 3.5rem; }
.card-header > .card-title, .card-header > h2, .card-header > h3 { margin: 0; font-size: 1rem; line-height: 1.5rem; font-weight: 600; }
.card-header-actions { margin-left: auto; display: flex; align-items: center; gap: var(--space-2); }
.card-footer { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); }
.card-subtitle { font-size: 0.8125rem; }
.card-grid { display: grid; gap: var(--space-4); grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); }

.stat-card .card-body { display: flex; flex-direction: column; gap: var(--space-1); }
.stat-label { display: flex; align-items: center; gap: var(--space-2); color: var(--text-muted); font-size: 0.875rem; line-height: 1.25rem; font-weight: 500; }
.stat-label > .bi { font-size: 1rem; }
.stat-card .stat-value { margin: 0; font-size: 1.75rem; line-height: 2.25rem; font-weight: 600; letter-spacing: -0.01em; font-variant-numeric: tabular-nums; color: var(--text); }
.stat-delta { display: flex; align-items: center; gap: var(--space-1); font-size: 0.8125rem; line-height: 1.125rem; color: var(--text-muted); }
.stat-delta-value { display: inline-flex; align-items: center; gap: 2px; font-weight: 600; font-variant-numeric: tabular-nums; }
.stat-delta-good .stat-delta-value { color: var(--success); }
.stat-delta-bad .stat-delta-value { color: var(--danger); }

/* Key–value list for detail pages */
.detail-list { display: grid; grid-template-columns: minmax(8rem, 12rem) 1fr; gap: var(--space-2) var(--space-3); margin: 0; }
.detail-list > dt { font-weight: 400; color: var(--text-muted); font-size: 0.875rem; line-height: 1.375rem; }
.detail-list > dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }
@media (max-width: 575.98px) {
  .detail-list { grid-template-columns: 1fr; row-gap: 0; }
  .detail-list > dd { margin-bottom: var(--space-2); }
}

/* ===================================================================
   7. Tables
   =================================================================== */
.table {
  --bs-table-color: var(--text);
  --bs-table-bg: transparent;
  --bs-table-border-color: var(--border);
  --bs-table-striped-color: var(--text);
  --bs-table-striped-bg: var(--surface-sunken);
  --bs-table-hover-color: var(--text);
  --bs-table-hover-bg: var(--surface-hover);
  --bs-table-active-color: var(--text);
  --bs-table-active-bg: var(--accent-soft);
  font-size: 0.9375rem;
  margin-bottom: 0;
}
/* Keeps absolutely positioned children (visually-hidden labels) inside the scroll box, so phones don't scroll sideways. */
.table-responsive { position: relative; }
.table > :not(caption) > * > * { padding: 0.75rem var(--space-3); }
.table > tbody > tr > td { vertical-align: middle; }
.table > thead > tr > th {
  padding-top: 0.625rem;
  padding-bottom: 0.625rem;
  background-color: var(--surface-sunken);
  color: var(--text-muted);
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
  vertical-align: middle;
}
.table-sm > :not(caption) > * > * { padding: 0.5rem 0.75rem; }
.table > tbody > tr.table-active > * { --bs-table-color-state: var(--text); --bs-table-bg-state: var(--accent-soft); }
.card > .table-responsive > .table > tbody > tr:last-child > *,
.card > .table > tbody > tr:last-child > * { border-bottom-width: 0; }
.card > .table-responsive:first-child > .table > thead > tr:first-child > th:first-child { border-top-left-radius: var(--bs-card-inner-border-radius); }
.card > .table-responsive:first-child > .table > thead > tr:first-child > th:last-child { border-top-right-radius: var(--bs-card-inner-border-radius); }
.card > .table-responsive + .card-footer { border-top: 1px solid var(--border); }
.table .col-check { width: 1%; padding-right: 0; }
.table .col-check .form-check-input { margin: 0; vertical-align: middle; }
.table .col-actions { width: 1%; white-space: nowrap; text-align: right; }
.table .col-actions .btn + .btn { margin-left: var(--space-1); }
.table td.text-end, .table th.text-end { font-variant-numeric: tabular-nums; }
.table .cell-primary { font-weight: 600; color: var(--text); text-decoration: none; }
a.cell-primary:hover { color: var(--accent); text-decoration: underline; }
.table .cell-meta { display: block; font-size: 0.8125rem; color: var(--text-muted); font-weight: 400; }

/* Sortable column headers: server-side links */
.sort-link { display: inline-flex; align-items: center; gap: var(--space-1); color: inherit; text-decoration: none; }
.sort-link:hover { color: var(--text); }
.sort-link > .bi { font-size: 0.75rem; opacity: 0.6; }
th[aria-sort] .sort-link { color: var(--text); }
th[aria-sort] .sort-link > .bi { opacity: 1; color: var(--accent); }

/* Toolbar above a table and the bulk-action bar that replaces it */
.table-toolbar { gap: var(--space-2); }
.table-toolbar .input-icon { flex: 1 1 14rem; max-width: 20rem; }
.bulk-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  padding: 0.5rem var(--space-3);
  min-height: 3.5rem;
  background: var(--accent-soft);
  border-bottom: 1px solid var(--border);
  font-size: 0.875rem;
}
.bulk-bar[hidden] { display: none; }
.bulk-bar-count { font-weight: 600; margin-right: auto; }
.card > .bulk-bar:first-child,
.card > .card-header[hidden] + .bulk-bar { border-top-left-radius: var(--bs-card-inner-border-radius); border-top-right-radius: var(--bs-card-inner-border-radius); }

/* ===================================================================
   8. Pagination
   =================================================================== */
.pagination {
  --bs-pagination-padding-x: 0.625rem;
  --bs-pagination-padding-y: 0.3125rem;
  --bs-pagination-font-size: 0.875rem;
  --bs-pagination-color: var(--text);
  --bs-pagination-bg: transparent;
  --bs-pagination-border-width: 1px;
  --bs-pagination-border-color: transparent;
  --bs-pagination-border-radius: var(--radius);
  --bs-pagination-hover-color: var(--text);
  --bs-pagination-hover-bg: var(--surface-hover);
  --bs-pagination-hover-border-color: transparent;
  --bs-pagination-focus-color: var(--text);
  --bs-pagination-focus-bg: var(--surface-hover);
  --bs-pagination-focus-box-shadow: none;
  --bs-pagination-active-color: var(--on-accent);
  --bs-pagination-active-bg: var(--accent);
  --bs-pagination-active-border-color: var(--accent);
  --bs-pagination-disabled-color: var(--text-muted);
  --bs-pagination-disabled-bg: transparent;
  --bs-pagination-disabled-border-color: transparent;
  gap: var(--space-1);
  margin: 0;
}
.page-link { min-width: 2.125rem; text-align: center; font-variant-numeric: tabular-nums; border-radius: var(--radius) !important; }
.page-item:not(:first-child) .page-link { margin-left: 0; }
.page-item.disabled .page-link { opacity: 0.6; }
.pagination-bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-2); width: 100%; }
.pagination-summary { font-size: 0.8125rem; color: var(--text-muted); font-variant-numeric: tabular-nums; }

/* ===================================================================
   9. Badges and avatars
   =================================================================== */
.badge {
  --bs-badge-padding-x: 0.5rem;
  --bs-badge-padding-y: 0.125rem;
  --bs-badge-font-size: 0.8125rem;
  --bs-badge-font-weight: 500;
  --bs-badge-color: var(--text-muted);
  --bs-badge-border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  line-height: 1.125rem;
  white-space: nowrap;
  vertical-align: middle;
  background-color: var(--surface-sunken);
}
.badge.rounded-pill, .badge-pill { --bs-badge-border-radius: var(--radius-pill); }
.badge > .bi { font-size: 0.75rem; }
.badge-soft-primary { background-color: var(--accent-soft); color: var(--accent); }
.badge-soft-success { background-color: var(--success-soft); color: var(--success); }
.badge-soft-warning { background-color: var(--warning-soft); color: var(--warning); }
.badge-soft-danger { background-color: var(--danger-soft); color: var(--danger); }
.badge-soft-info { background-color: var(--info-soft); color: var(--info); }
.badge-soft-neutral { background-color: var(--surface-sunken); color: var(--text-muted); }
.badge-dot::before { content: ""; width: 0.375rem; height: 0.375rem; border-radius: var(--radius-pill); background: currentColor; flex: none; }
.badge-outline { background-color: transparent; border: 1px solid var(--border-input); color: var(--text); }
.badge-count { --bs-badge-padding-x: 0.375rem; --bs-badge-font-size: 0.75rem; --bs-badge-border-radius: var(--radius-pill); min-width: 1.25rem; justify-content: center; line-height: 1rem; font-variant-numeric: tabular-nums; }

.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-pill);
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1;
  overflow: hidden;
  text-transform: uppercase;
}
.avatar > img { width: 100%; height: 100%; object-fit: cover; }
.avatar-sm { width: 1.5rem; height: 1.5rem; font-size: 0.6875rem; }
.avatar-lg { width: 2.5rem; height: 2.5rem; font-size: 0.9375rem; }

/* ===================================================================
   10. Alerts, toasts (flash messages), progress
   =================================================================== */
.alert {
  --bs-alert-padding-x: var(--space-3);
  --bs-alert-padding-y: 0.75rem;
  --bs-alert-margin-bottom: var(--space-3);
  --bs-alert-color: var(--text);
  --bs-alert-border-color: transparent;
  --bs-alert-border-radius: var(--radius);
  --bs-alert-link-color: var(--text);
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.9375rem;
}
.alert-primary { --bs-alert-bg: var(--accent-soft); --alert-tone: var(--accent); }
.alert-success { --bs-alert-bg: var(--success-soft); --alert-tone: var(--success); }
.alert-warning { --bs-alert-bg: var(--warning-soft); --alert-tone: var(--warning); }
.alert-danger { --bs-alert-bg: var(--danger-soft); --alert-tone: var(--danger); }
.alert-info { --bs-alert-bg: var(--info-soft); --alert-tone: var(--info); }
.alert-secondary, .alert-light { --bs-alert-bg: var(--surface-sunken); --alert-tone: var(--text-muted); }
.alert-icon { flex: none; font-size: 1.125rem; line-height: 1.375rem; color: var(--alert-tone, var(--text-muted)); }
.alert-content { flex: 1; min-width: 0; }
.alert-heading { color: var(--alert-tone, var(--text)); font-size: 0.9375rem; line-height: 1.375rem; font-weight: 600; margin: 0 0 0.125rem; }
.alert-content > :last-child { margin-bottom: 0; }
.alert .alert-link { font-weight: 600; text-decoration: underline; }
.alert-dismissible { padding-right: var(--space-3); }
.alert-dismissible .btn-close { position: static; padding: 0.25rem; margin: -0.125rem -0.25rem 0 auto; flex: none; }
.alert-actions { display: flex; gap: var(--space-2); margin-top: var(--space-2); }

.toast {
  --bs-toast-max-width: 24rem;
  --bs-toast-padding-x: var(--space-3);
  --bs-toast-padding-y: 0.75rem;
  --bs-toast-font-size: 0.9375rem;
  --bs-toast-color: var(--text);
  --bs-toast-bg: var(--surface);
  --bs-toast-border-width: 1px;
  --bs-toast-border-color: var(--border);
  --bs-toast-border-radius: var(--radius-lg);
  --bs-toast-box-shadow: var(--shadow);
  --bs-toast-header-color: var(--text);
  --bs-toast-header-bg: var(--surface);
  --bs-toast-header-border-color: var(--border);
}
.toast-flash .toast-body { display: flex; align-items: flex-start; gap: 0.75rem; }
.toast-icon { flex: none; font-size: 1.125rem; line-height: 1.375rem; color: var(--toast-tone, var(--text-muted)); }
.toast-message { flex: 1; min-width: 0; line-height: 1.375rem; }
.toast-flash .btn-close { flex: none; padding: 0.25rem; margin: -0.0625rem -0.25rem 0 0; }
.toast-success { --toast-tone: var(--success); }
.toast-warning { --toast-tone: var(--warning); }
.toast-danger { --toast-tone: var(--danger); }
.toast-info { --toast-tone: var(--info); }
.flash-container { position: fixed; top: calc(var(--topbar-height) + var(--space-2)); right: var(--space-3); z-index: 1090; display: flex; flex-direction: column; gap: var(--space-2); pointer-events: none; }
.flash-container > .toast { pointer-events: auto; }
@media (max-width: 575.98px) {
  .flash-container { left: var(--space-3); }
  .flash-container > .toast { width: 100%; max-width: none; }
}

.progress, .progress-stacked {
  --bs-progress-height: 0.5rem;
  --bs-progress-font-size: 0.75rem;
  --bs-progress-bg: var(--surface-sunken);
  --bs-progress-border-radius: var(--radius-pill);
  --bs-progress-bar-color: var(--on-accent);
  --bs-progress-bar-bg: var(--accent);
}
.spinner-border, .spinner-grow { color: inherit; }

/* ===================================================================
   11. Overlays: modal, offcanvas, dropdown, tooltip, popover
   =================================================================== */
.modal {
  --bs-modal-padding: var(--space-4);
  --bs-modal-margin: var(--space-3);
  --bs-modal-color: var(--text);
  --bs-modal-bg: var(--surface);
  --bs-modal-border-color: var(--border);
  --bs-modal-border-width: 1px;
  --bs-modal-border-radius: var(--radius-xl);
  --bs-modal-box-shadow: var(--shadow-lg);
  --bs-modal-inner-border-radius: calc(var(--radius-xl) - 1px);
  --bs-modal-header-padding: var(--space-4) var(--space-4) 0;
  --bs-modal-header-border-color: transparent;
  --bs-modal-header-border-width: 0;
  --bs-modal-title-line-height: 1.625rem;
  --bs-modal-footer-gap: var(--space-2);
  --bs-modal-footer-bg: transparent;
  --bs-modal-footer-border-color: transparent;
  --bs-modal-footer-border-width: 0;
}
.modal-content { box-shadow: var(--shadow-lg); }
.modal-title { font-size: 1.125rem; font-weight: 600; }
.modal-header { align-items: flex-start; }
.modal-header .btn-close { margin: -0.25rem -0.25rem 0 auto; padding: 0.5rem; }
.modal-body { color: var(--text); }
.modal-body > :last-child { margin-bottom: 0; }
.modal-footer { padding: var(--space-3) var(--space-4) var(--space-4); gap: var(--space-2); }
.modal-footer > * { margin: 0; }
.modal-confirm .modal-body { display: flex; gap: var(--space-3); align-items: flex-start; padding-top: var(--space-4); }
.modal-confirm-icon {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-pill);
  background: var(--danger-soft);
  color: var(--danger);
  font-size: 1.125rem;
}
.modal-confirm .modal-title { margin-bottom: var(--space-1); }
.modal-confirm-text { color: var(--text-muted); margin: 0; }
.modal-backdrop, .offcanvas-backdrop { --bs-backdrop-bg: var(--backdrop); --bs-backdrop-opacity: 1; }

.offcanvas, .offcanvas-lg, .offcanvas-md, .offcanvas-sm, .offcanvas-xl {
  --bs-offcanvas-color: var(--text);
  --bs-offcanvas-bg: var(--surface);
  --bs-offcanvas-border-color: var(--border);
  --bs-offcanvas-box-shadow: var(--shadow-lg);
  --bs-offcanvas-padding-x: var(--space-3);
  --bs-offcanvas-padding-y: var(--space-3);
}
.offcanvas.show, .offcanvas.showing { box-shadow: var(--shadow-lg); }

.dropdown-menu {
  --bs-dropdown-min-width: 12rem;
  --bs-dropdown-padding-x: var(--space-1);
  --bs-dropdown-padding-y: var(--space-1);
  --bs-dropdown-spacer: var(--space-1);
  --bs-dropdown-font-size: 0.875rem;
  --bs-dropdown-color: var(--text);
  --bs-dropdown-bg: var(--surface);
  --bs-dropdown-border-color: var(--border);
  --bs-dropdown-border-radius: var(--radius-lg);
  --bs-dropdown-inner-border-radius: var(--radius);
  --bs-dropdown-divider-bg: var(--border);
  --bs-dropdown-divider-margin-y: var(--space-1);
  --bs-dropdown-box-shadow: var(--shadow);
  --bs-dropdown-link-color: var(--text);
  --bs-dropdown-link-hover-color: var(--text);
  --bs-dropdown-link-hover-bg: var(--surface-hover);
  --bs-dropdown-link-active-color: var(--accent);
  --bs-dropdown-link-active-bg: var(--accent-soft);
  --bs-dropdown-link-disabled-color: var(--text-muted);
  --bs-dropdown-item-padding-x: 0.75rem;
  --bs-dropdown-item-padding-y: 0.4375rem;
  --bs-dropdown-header-color: var(--text-muted);
  --bs-dropdown-header-padding-x: 0.75rem;
  --bs-dropdown-header-padding-y: 0.5rem;
  box-shadow: var(--shadow);
}
.dropdown-item { display: flex; align-items: center; gap: var(--space-2); border-radius: var(--radius); line-height: 1.25rem; }
.dropdown-item > .bi { color: var(--text-muted); font-size: 1rem; width: 1rem; text-align: center; }
.dropdown-item:hover > .bi, .dropdown-item:focus > .bi { color: var(--text); }
.dropdown-item.active > .bi, .dropdown-item:active > .bi { color: var(--accent); }
.dropdown-item.text-danger, .dropdown-item.text-danger > .bi { color: var(--danger) !important; }
.dropdown-item.text-danger:hover, .dropdown-item.text-danger:focus, .dropdown-item.text-danger:active { background-color: var(--danger-soft); color: var(--danger); }
.dropdown-header { font-size: 0.75rem; line-height: 1rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; }
.dropdown-item-text { color: var(--text-muted); font-size: 0.8125rem; }
.dropdown-user { padding: 0.5rem 0.75rem; display: flex; align-items: center; gap: var(--space-2); }
.dropdown-user-name { font-weight: 600; line-height: 1.25rem; }
.dropdown-user-meta { font-size: 0.8125rem; color: var(--text-muted); line-height: 1.125rem; }
.dropdown-toggle::after { display: none; }
.dropdown-toggle > .bi-chevron-down { font-size: 0.75rem; }

.tooltip {
  --bs-tooltip-bg: var(--text);
  --bs-tooltip-color: var(--surface);
  --bs-tooltip-font-size: 0.8125rem;
  --bs-tooltip-padding-x: 0.5rem;
  --bs-tooltip-padding-y: 0.25rem;
  --bs-tooltip-border-radius: var(--radius-sm);
  --bs-tooltip-opacity: 1;
}
.popover {
  --bs-popover-bg: var(--surface);
  --bs-popover-border-color: var(--border);
  --bs-popover-border-radius: var(--radius-lg);
  --bs-popover-inner-border-radius: calc(var(--radius-lg) - 1px);
  --bs-popover-box-shadow: var(--shadow);
  --bs-popover-font-size: 0.875rem;
  --bs-popover-header-bg: var(--surface);
  --bs-popover-header-color: var(--text);
  --bs-popover-body-color: var(--text);
  box-shadow: var(--shadow);
}

.list-group {
  --bs-list-group-color: var(--text);
  --bs-list-group-bg: var(--surface);
  --bs-list-group-border-color: var(--border);
  --bs-list-group-border-radius: var(--radius-lg);
  --bs-list-group-action-color: var(--text);
  --bs-list-group-action-hover-color: var(--text);
  --bs-list-group-action-hover-bg: var(--surface-hover);
  --bs-list-group-action-active-color: var(--text);
  --bs-list-group-action-active-bg: var(--surface-hover);
  --bs-list-group-active-color: var(--accent);
  --bs-list-group-active-bg: var(--accent-soft);
  --bs-list-group-active-border-color: var(--border);
  --bs-list-group-disabled-color: var(--text-muted);
}

/* ===================================================================
   12. Navigation: tabs, pills, breadcrumbs, page header
   =================================================================== */
.nav-tabs {
  --bs-nav-tabs-border-width: 1px;
  --bs-nav-tabs-border-color: var(--border);
  --bs-nav-tabs-border-radius: 0;
  --bs-nav-tabs-link-hover-border-color: transparent;
  --bs-nav-tabs-link-active-color: var(--text);
  --bs-nav-tabs-link-active-bg: transparent;
  --bs-nav-tabs-link-active-border-color: transparent;
  gap: var(--space-4);
}
.nav-tabs .nav-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.625rem 0;
  margin-bottom: -1px;
  border: 0;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.25rem;
}
.nav-tabs .nav-link:hover { color: var(--text); border-bottom-color: var(--border-input); }
.nav-tabs .nav-link.active, .nav-tabs .nav-item.show .nav-link { color: var(--text); font-weight: 600; border-bottom-color: var(--accent); background: transparent; }
.nav-tabs .nav-link.disabled { color: var(--text-muted); opacity: 0.6; }
.card-header > .nav-tabs { margin-bottom: calc(-0.75rem - 1px); border-bottom: 0; }
.nav-pills {
  --bs-nav-pills-border-radius: var(--radius);
  --bs-nav-pills-link-active-color: var(--accent);
  --bs-nav-pills-link-active-bg: var(--accent-soft);
  gap: var(--space-1);
}
.nav-pills .nav-link { color: var(--text-muted); font-size: 0.875rem; font-weight: 500; padding: 0.375rem 0.75rem; display: inline-flex; align-items: center; gap: var(--space-2); }
.nav-pills .nav-link:hover { color: var(--text); background: var(--surface-hover); }
.nav-pills .nav-link.active { font-weight: 600; }
.tab-content { padding-top: var(--space-3); }

.breadcrumb {
  --bs-breadcrumb-font-size: 0.8125rem;
  --bs-breadcrumb-margin-bottom: var(--space-1);
  --bs-breadcrumb-divider-color: var(--text-muted);
  --bs-breadcrumb-item-padding-x: 0.375rem;
  --bs-breadcrumb-item-active-color: var(--text-muted);
  --bs-breadcrumb-divider: "/";
  line-height: 1.125rem;
}
.breadcrumb-item a { color: var(--text-muted); text-decoration: none; }
.breadcrumb-item a:hover { color: var(--text); text-decoration: underline; }

.page-header { display: flex; flex-wrap: wrap; align-items: flex-end; gap: var(--space-3); margin-bottom: var(--space-4); }
.page-header-main { min-width: 0; flex: 1 1 auto; }
.page-header-title { margin: 0; font-size: 1.5rem; line-height: 2rem; font-weight: 600; letter-spacing: -0.01em; display: flex; align-items: center; gap: var(--space-2); flex-wrap: wrap; }
.page-header-meta { margin: var(--space-1) 0 0; color: var(--text-muted); font-size: 0.875rem; }
.page-header-actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); margin-left: auto; }
.page-header + .nav-tabs { margin-top: calc(-1 * var(--space-2)); margin-bottom: var(--space-4); }

/* ===================================================================
   13. Empty state
   =================================================================== */
.empty-state { display: flex; flex-direction: column; align-items: center; text-align: center; padding: var(--space-5) var(--space-4); }
.empty-state-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  margin-bottom: var(--space-3);
  border-radius: var(--radius-pill);
  background: var(--surface-sunken);
  color: var(--text-muted);
  font-size: 1.375rem;
}
.empty-state-title { margin: 0 0 var(--space-1); font-size: 1rem; line-height: 1.5rem; font-weight: 600; }
.empty-state-text { margin: 0; max-width: 26rem; color: var(--text-muted); }
.empty-state-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-2); margin-top: var(--space-3); }

/* ===================================================================
   14. Charts (Chart.js canvas + HTML legend + table view)
   =================================================================== */
.chart-box { position: relative; height: 15rem; }
.chart-box-lg { height: 20rem; }
.chart-legend { display: flex; flex-wrap: wrap; gap: var(--space-1) var(--space-3); margin: 0 0 var(--space-3); padding: 0; list-style: none; font-size: 0.8125rem; color: var(--text-muted); }
.chart-legend:empty { display: none; }
.chart-legend-item { display: inline-flex; align-items: center; gap: var(--space-2); }
.chart-legend-swatch { width: 0.75rem; height: 0.75rem; border-radius: 2px; flex: none; }
.chart-legend-swatch-line { height: 2px; width: 1rem; border-radius: 1px; }
.chart-table { margin-top: var(--space-3); }
.chart-table[hidden] { display: none; }
.chart-card [data-chart-view] { font-size: 0.8125rem; }

/* ===================================================================
   15. App shell: sidebar + top bar + content
   =================================================================== */
.admin-shell { display: flex; min-height: 100vh; background: var(--bg); }
.admin-main { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; }
.admin-content { flex: 1 0 auto; width: 100%; max-width: var(--content-max-width); margin: 0 auto; padding: var(--space-4); }
.admin-content-fluid { max-width: none; }
.admin-footer { padding: var(--space-3) var(--space-4); color: var(--text-muted); font-size: 0.8125rem; display: flex; gap: var(--space-3); flex-wrap: wrap; }
@media (max-width: 575.98px) {
  .admin-content { padding: var(--space-3); }
}

/* Sidebar — a Bootstrap .offcanvas-lg: a drawer below 992px, a fixed column from 992px. */
.admin-sidebar {
  --bs-offcanvas-width: 17.5rem;
  --bs-offcanvas-bg: var(--sidebar-bg);
  --bs-offcanvas-border-color: var(--border);
  flex-direction: column;
  color: var(--text);
}
.admin-sidebar-header {
  flex: none;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  height: var(--topbar-height);
  padding: 0 var(--space-3);
  border-bottom: 1px solid var(--border);
}
.admin-brand { display: flex; align-items: center; gap: 0.625rem; min-width: 0; color: var(--text); text-decoration: none; font-size: 1rem; line-height: 1.5rem; font-weight: 600; }
.admin-brand:hover { color: var(--text); }
.admin-brand-mark {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius);
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.9375rem;
  font-weight: 600;
  overflow: hidden;
}
.admin-brand-mark > img { max-width: 100%; max-height: 100%; }
.admin-brand-logo { max-height: 1.75rem; width: auto; }
.admin-brand-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.admin-sidebar-header .btn-close { margin-left: auto; }
.admin-sidebar-body { flex: 1 1 auto; overflow-y: auto; overflow-x: hidden; padding: var(--space-3) var(--space-2); }
.admin-sidebar-footer { flex: none; padding: var(--space-2); border-top: 1px solid var(--border); }
.admin-nav-heading {
  padding: var(--space-3) 0.75rem 0.375rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}
.admin-nav-heading:first-child { padding-top: 0; }
.admin-nav { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
.admin-nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.875rem;
  line-height: 1.25rem;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
}
.admin-nav-link > .bi { flex: none; width: 1.25rem; text-align: center; font-size: 1.125rem; line-height: 1; color: var(--text-muted); }
.admin-nav-link:hover { background: var(--surface-hover); color: var(--text); }
.admin-nav-link:hover > .bi { color: var(--text); }
.admin-nav-link.active, .admin-nav-link[aria-current="page"] { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.admin-nav-link.active > .bi, .admin-nav-link[aria-current="page"] > .bi { color: var(--accent); }
.admin-nav-label { flex: 1 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; }
.admin-nav-badge { margin-left: auto; }

/* Groups: a toggle (not a page) with one level of sublinks. Bootstrap's .collapse opens them inline. */
button.admin-nav-link { width: 100%; border: 0; background: transparent; text-align: left; font-family: inherit; cursor: pointer; }
button.admin-nav-link:hover { background: var(--surface-hover); }
.admin-nav-link > .admin-nav-caret { width: auto; margin-left: auto; font-size: 0.75rem; transition: transform 0.2s ease; }
.admin-nav-toggle[aria-expanded="true"] > .admin-nav-caret { transform: rotate(180deg); }
.admin-nav-toggle.has-active { font-weight: 600; }
.admin-nav-toggle.has-active > .bi:first-child { color: var(--accent); }
.admin-nav-sub { list-style: none; margin: 2px 0 0; padding: 0; }
.admin-nav-sub > li + li { margin-top: 2px; }
.admin-nav-sub-heading { display: none; }
.admin-nav-sublink {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.375rem 0.75rem 0.375rem 2.75rem;
  border-radius: var(--radius);
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.25rem;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
}
.admin-nav-sublink:hover { background: var(--surface-hover); color: var(--text); }
.admin-nav-sublink.active, .admin-nav-sublink[aria-current="page"] { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.admin-nav-sublink > .admin-nav-badge { margin-left: auto; }
/* In the collapsed sidebar a group opens as a floating menu beside it (admin.js positions it). */
.admin-nav-sub.is-flyout {
  position: fixed;
  z-index: 1060;
  display: block !important;
  height: auto !important;
  min-width: 13rem;
  max-height: calc(100vh - 1rem);
  overflow-y: auto;
  margin: 0;
  padding: var(--space-1);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.admin-nav-sub.is-flyout .admin-nav-sub-heading {
  display: block;
  padding: 0.5rem 0.75rem 0.25rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.admin-nav-sub.is-flyout .admin-nav-sublink { padding-left: 0.75rem; }

/* Desktop column (≥992px), and .admin-sidebar-static for documentation/previews at any width. */
@media (min-width: 992px) {
  .admin-sidebar.offcanvas-lg {
    position: sticky;
    top: 0;
    height: 100vh;
    width: var(--sidebar-width);
    flex: none;
    display: flex;
    background-color: var(--sidebar-bg) !important;
    border-right: 1px solid var(--border);
    transition: width 0.2s ease;
  }
  .admin-sidebar.offcanvas-lg .btn-close { display: none; }
}
.admin-sidebar.admin-sidebar-static {
  position: relative;
  width: var(--sidebar-width);
  flex: none;
  display: flex;
  background-color: var(--sidebar-bg);
  border-right: 1px solid var(--border);
}
.admin-sidebar.admin-sidebar-static .btn-close { display: none; }

/* Collapsed (icon-only) sidebar: class "sidebar-collapsed" on <html> (or any ancestor). */
@media (min-width: 992px) {
  .sidebar-collapsed .admin-sidebar.offcanvas-lg { width: var(--sidebar-width-collapsed); }
}
.sidebar-collapsed .admin-sidebar.admin-sidebar-static { width: var(--sidebar-width-collapsed); }
@media (min-width: 992px) {
  /* Labels stay readable for screen readers; only the icons show. */
  .sidebar-collapsed .admin-sidebar.offcanvas-lg .admin-brand-name,
  .sidebar-collapsed .admin-sidebar.offcanvas-lg .admin-nav-label,
  .sidebar-collapsed .admin-sidebar.offcanvas-lg .admin-nav-link > .admin-nav-badge,
  .sidebar-collapsed .admin-sidebar.offcanvas-lg .admin-sidebar-footer-label { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
  .sidebar-collapsed .admin-sidebar.offcanvas-lg .admin-nav-caret,
  .sidebar-collapsed .admin-sidebar.offcanvas-lg .admin-nav-sub:not(.is-flyout) { display: none !important; }
  .sidebar-collapsed .admin-sidebar.offcanvas-lg .admin-nav-toggle.has-active { background: var(--accent-soft); }
  .sidebar-collapsed .admin-sidebar.offcanvas-lg .admin-nav-heading { height: 1px; padding: 0; margin: 0.75rem 0.5rem; background: var(--border); font-size: 0; }
  .sidebar-collapsed .admin-sidebar.offcanvas-lg .admin-nav-heading:first-child { display: none; }
  .sidebar-collapsed .admin-sidebar.offcanvas-lg .admin-nav-link { justify-content: center; padding-left: 0; padding-right: 0; }
}
/* Labels stay readable for screen readers; only the icons show. */
.sidebar-collapsed .admin-sidebar.admin-sidebar-static .admin-brand-name,
.sidebar-collapsed .admin-sidebar.admin-sidebar-static .admin-nav-label,
.sidebar-collapsed .admin-sidebar.admin-sidebar-static .admin-nav-link > .admin-nav-badge,
.sidebar-collapsed .admin-sidebar.admin-sidebar-static .admin-sidebar-footer-label { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.sidebar-collapsed .admin-sidebar.admin-sidebar-static .admin-nav-caret,
.sidebar-collapsed .admin-sidebar.admin-sidebar-static .admin-nav-sub:not(.is-flyout) { display: none !important; }
.sidebar-collapsed .admin-sidebar.admin-sidebar-static .admin-nav-toggle.has-active { background: var(--accent-soft); }
.sidebar-collapsed .admin-sidebar.admin-sidebar-static .admin-nav-heading { height: 1px; padding: 0; margin: 0.75rem 0.5rem; background: var(--border); font-size: 0; }
.sidebar-collapsed .admin-sidebar.admin-sidebar-static .admin-nav-heading:first-child { display: none; }
.sidebar-collapsed .admin-sidebar.admin-sidebar-static .admin-nav-link { justify-content: center; padding-left: 0; padding-right: 0; }

/* Top bar */
.admin-topbar {
  position: sticky;
  top: 0;
  z-index: 1020;
  flex: none;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  height: var(--topbar-height);
  padding: 0 var(--space-4) 0 var(--space-3);
  background: var(--topbar-bg);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.15s ease;
}
.admin-topbar.is-scrolled { box-shadow: var(--shadow-sm); }
.admin-topbar-search { flex: 0 1 22rem; min-width: 0; }
.admin-topbar-search .form-control { background-color: var(--bg); }
.admin-topbar-actions { display: flex; align-items: center; gap: var(--space-1); margin-left: auto; }
.admin-topbar-divider { width: 1px; height: 1.5rem; background: var(--border); margin: 0 var(--space-1); }
.admin-site-link { --bs-btn-padding-x: 0.625rem; gap: var(--space-2); }
.admin-site-link > .bi { font-size: 1rem; }
@media (max-width: 767.98px) { .admin-site-link { --bs-btn-padding-x: 0; width: 2.375rem; height: 2.375rem; } .admin-site-link > .bi { font-size: 1.125rem; } }
.admin-user-toggle { --bs-btn-padding-x: 0.375rem; --bs-btn-padding-y: 0.25rem; --bs-btn-color: var(--text); gap: var(--space-2); }
.admin-user-name { font-size: 0.875rem; font-weight: 500; max-width: 12rem; overflow: hidden; text-overflow: ellipsis; }
.admin-indicator {
  position: absolute;
  top: 0.4375rem;
  right: 0.4375rem;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: var(--radius-pill);
  background: var(--danger);
  box-shadow: 0 0 0 2px var(--topbar-bg);
}
@media (max-width: 575.98px) {
  .admin-topbar { padding: 0 var(--space-3) 0 var(--space-2); }
}

.skip-link { position: absolute; top: var(--space-2); left: var(--space-2); z-index: 1100; }

@media (prefers-reduced-motion: reduce) {
  .admin-sidebar, .admin-topbar, .file-drop { transition: none !important; }
}