/*
 * School ERP web design system foundation.
 *
 * This file is intentionally framework-friendly: Bootstrap and AdminLTE still
 * own layout and interaction primitives. The .ds-pilot scope limits visual
 * component adoption until each module is migrated deliberately.
 */
:root {
  --ds-color-brand: var(--brand-primary, #3a1a59);
  --ds-color-brand-strong: var(--brand-primary-dark, #2e1344);
  --ds-color-accent: var(--brand-accent, #14b8a6);
  --ds-color-page: var(--brand-bg, #f8f9fa);
  --ds-color-surface: var(--brand-surface, #ffffff);
  --ds-color-surface-raised: #ffffff;
  --ds-color-surface-muted: #f1f5f9;
  --ds-color-text: var(--brand-text, #0f172a);
  --ds-color-text-muted: var(--brand-muted, #64748b);
  --ds-color-text-subtle: #94a3b8;
  --ds-color-border: var(--brand-border, #e2e8f0);
  --ds-color-border-strong: #cbd5e1;
  --ds-color-success: #15803d;
  --ds-color-success-bg: #dcfce7;
  --ds-color-warning: #b45309;
  --ds-color-warning-bg: #fef3c7;
  --ds-color-danger: #b91c1c;
  --ds-color-danger-bg: #fee2e2;
  --ds-color-info: #1d4ed8;
  --ds-color-info-bg: #dbeafe;

  --ds-font-family: 'Poppins', sans-serif;
  --ds-font-size-xs: 0.75rem;
  --ds-font-size-sm: 0.8125rem;
  --ds-font-size-md: 0.9375rem;
  --ds-font-size-lg: 1.125rem;
  --ds-font-size-xl: 1.375rem;
  --ds-font-size-2xl: 1.75rem;
  --ds-font-weight-normal: 400;
  --ds-font-weight-medium: 500;
  --ds-font-weight-semibold: 600;
  --ds-font-weight-bold: 700;

  --ds-space-1: 0.25rem;
  --ds-space-2: 0.5rem;
  --ds-space-3: 0.75rem;
  --ds-space-4: 1rem;
  --ds-space-5: 1.25rem;
  --ds-space-6: 1.5rem;
  --ds-space-8: 2rem;
  --ds-space-10: 2.5rem;
  --ds-space-12: 3rem;

  --ds-radius-sm: 0.375rem;
  --ds-radius-md: 0.625rem;
  --ds-radius-lg: 0.875rem;
  --ds-radius-pill: 999px;
  --ds-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --ds-shadow-md: 0 8px 20px rgba(15, 23, 42, 0.08);
  --ds-shadow-lg: 0 16px 36px rgba(15, 23, 42, 0.12);
  --ds-control-height-sm: 2rem;
  --ds-control-height-md: 2.5rem;
  --ds-control-height-lg: 2.75rem;
  --ds-z-dropdown: 1000;
  --ds-z-sticky: 1020;
  --ds-z-modal: 1050;
  --ds-breakpoint-sm: 576px;
  --ds-breakpoint-md: 768px;
  --ds-breakpoint-lg: 992px;
  --ds-breakpoint-xl: 1200px;
}

body.theme-dark {
  --ds-color-page: #0b1220;
  --ds-color-surface: #111827;
  --ds-color-surface-raised: #172033;
  --ds-color-surface-muted: #1e293b;
  --ds-color-text: #e5e7eb;
  --ds-color-text-muted: #a7b0bf;
  --ds-color-text-subtle: #7c8a9e;
  --ds-color-border: #2a374a;
  --ds-color-border-strong: #3b4a60;
  --ds-color-success: #4ade80;
  --ds-color-success-bg: #14532d;
  --ds-color-warning: #fbbf24;
  --ds-color-warning-bg: #78350f;
  --ds-color-danger: #f87171;
  --ds-color-danger-bg: #7f1d1d;
  --ds-color-info: #60a5fa;
  --ds-color-info-bg: #1e3a8a;
}

.ds-pilot,
.ds-pilot .card,
.ds-pilot .form-control,
.ds-pilot .form-select,
.ds-pilot .table,
.ds-pilot .alert {
  color: var(--ds-color-text);
}

.ds-pilot {
  font-family: var(--ds-font-family);
}

.ds-pilot .ds-card,
.ds-pilot .settings-card,
.ds-pilot .dash-card,
.ds-pilot .card,
.ds-pilot .tab-surface,
.ds-pilot .finance-card {
  background: var(--ds-color-surface);
  border: 1px solid var(--ds-color-border);
  border-radius: var(--ds-radius-lg);
  box-shadow: var(--ds-shadow-sm);
}

.ds-pilot .card-header,
.ds-pilot .card-footer {
  border-color: var(--ds-color-border);
  background: var(--ds-color-surface-muted);
}

.ds-pilot .form-control,
.ds-pilot .form-select {
  min-height: var(--ds-control-height-lg);
  color: var(--ds-color-text);
  background-color: var(--ds-color-surface);
  border-color: var(--ds-color-border-strong);
  border-radius: var(--ds-radius-md);
}

.ds-pilot textarea.form-control {
  min-height: 6rem;
}

.ds-pilot .form-control:focus,
.ds-pilot .form-select:focus {
  color: var(--ds-color-text);
  background-color: var(--ds-color-surface);
  border-color: var(--ds-color-brand);
  box-shadow: 0 0 0 0.2rem color-mix(in srgb, var(--ds-color-brand) 18%, transparent);
}

.ds-pilot .form-label,
.ds-pilot .form-check-label {
  color: var(--ds-color-text);
  font-size: var(--ds-font-size-sm);
  font-weight: var(--ds-font-weight-semibold);
}

.ds-pilot .form-text,
.ds-pilot .text-muted,
.ds-pilot .dash-muted {
  color: var(--ds-color-text-muted) !important;
}

.ds-pilot .invalid-feedback,
.ds-pilot .form-error {
  color: var(--ds-color-danger);
  font-size: var(--ds-font-size-sm);
  font-weight: var(--ds-font-weight-medium);
}

.ds-pilot .is-invalid,
.ds-pilot .form-control.is-invalid,
.ds-pilot .form-select.is-invalid {
  border-color: var(--ds-color-danger);
  box-shadow: 0 0 0 0.2rem color-mix(in srgb, var(--ds-color-danger) 14%, transparent);
}

.ds-pilot .btn {
  min-height: var(--ds-control-height-md);
  border-radius: var(--ds-radius-md);
  font-size: var(--ds-font-size-sm);
  font-weight: var(--ds-font-weight-semibold);
  transition: background-color 160ms ease, border-color 160ms ease, box-shadow 160ms ease, color 160ms ease;
}

.ds-pilot .btn-primary,
.ds-pilot .btn-settings-primary {
  color: #fff;
  background: var(--ds-color-brand);
  border-color: var(--ds-color-brand);
  box-shadow: var(--ds-shadow-sm);
}

.ds-pilot .btn-primary:hover,
.ds-pilot .btn-primary:focus-visible,
.ds-pilot .btn-settings-primary:hover,
.ds-pilot .btn-settings-primary:focus-visible {
  color: #fff;
  background: var(--ds-color-brand-strong);
  border-color: var(--ds-color-brand-strong);
  box-shadow: var(--ds-shadow-md);
}

.ds-pilot .btn-secondary,
.ds-pilot .btn-outline-secondary,
.ds-pilot .btn-ghost,
.ds-pilot .btn-ghost-strong {
  color: var(--ds-color-text);
  background: var(--ds-color-surface);
  border-color: var(--ds-color-border-strong);
}

.ds-pilot .btn-secondary:hover,
.ds-pilot .btn-outline-secondary:hover,
.ds-pilot .btn-ghost:hover,
.ds-pilot .btn-ghost-strong:hover {
  color: var(--ds-color-brand-strong);
  background: var(--ds-color-surface-muted);
  border-color: var(--ds-color-brand);
}

.ds-pilot .btn-outline-danger,
.ds-pilot .btn-danger {
  color: var(--ds-color-danger);
  border-color: var(--ds-color-danger);
}

.ds-pilot .btn-danger:hover,
.ds-pilot .btn-outline-danger:hover {
  color: #fff;
  background: var(--ds-color-danger);
  border-color: var(--ds-color-danger);
}

.ds-pilot .btn:disabled,
.ds-pilot .btn.disabled,
.ds-pilot [aria-disabled='true'] {
  opacity: 0.58;
  cursor: not-allowed;
  box-shadow: none;
}

.ds-pilot .btn.is-loading,
.ds-pilot .btn[data-loading='true'] {
  pointer-events: none;
  cursor: wait;
}

.ds-pilot .btn-icon,
.ds-pilot .btn.btn-icon {
  width: var(--ds-control-height-md);
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.ds-pilot .table {
  --bs-table-bg: transparent;
  --bs-table-color: var(--ds-color-text);
  --bs-table-border-color: var(--ds-color-border);
}

.ds-pilot .table thead th {
  color: var(--ds-color-text-muted);
  background: var(--ds-color-surface-muted);
  font-size: var(--ds-font-size-xs);
  font-weight: var(--ds-font-weight-bold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.ds-pilot .table tbody tr:hover {
  --bs-table-accent-bg: color-mix(in srgb, var(--ds-color-brand) 5%, transparent);
}

.ds-pilot .badge,
.ds-pilot .pill-badge,
.ds-pilot .input-chip {
  border-radius: var(--ds-radius-pill);
  font-size: var(--ds-font-size-xs);
  font-weight: var(--ds-font-weight-semibold);
}

.ds-pilot .alert {
  border-radius: var(--ds-radius-md);
  border-width: 1px;
}

.ds-pilot .alert-success { color: var(--ds-color-success); background: var(--ds-color-success-bg); border-color: color-mix(in srgb, var(--ds-color-success) 28%, var(--ds-color-success-bg)); }
.ds-pilot .alert-warning { color: var(--ds-color-warning); background: var(--ds-color-warning-bg); border-color: color-mix(in srgb, var(--ds-color-warning) 28%, var(--ds-color-warning-bg)); }
.ds-pilot .alert-danger { color: var(--ds-color-danger); background: var(--ds-color-danger-bg); border-color: color-mix(in srgb, var(--ds-color-danger) 28%, var(--ds-color-danger-bg)); }
.ds-pilot .alert-info { color: var(--ds-color-info); background: var(--ds-color-info-bg); border-color: color-mix(in srgb, var(--ds-color-info) 28%, var(--ds-color-info-bg)); }

.ds-pilot .page-header,
.ds-pilot .dash-hero,
.ds-pilot .finance-hero {
  border-radius: var(--ds-radius-lg);
  box-shadow: var(--ds-shadow-sm);
}

.ds-pilot .nav-tabs,
.ds-pilot .settings-tabs {
  border-bottom-color: var(--ds-color-border);
}

.ds-pilot .nav-tabs .nav-link,
.ds-pilot .settings-tabs .nav-link {
  color: var(--ds-color-text-muted);
  border-radius: var(--ds-radius-md) var(--ds-radius-md) 0 0;
  font-weight: var(--ds-font-weight-semibold);
}

.ds-pilot .nav-tabs .nav-link:hover,
.ds-pilot .nav-tabs .nav-link:focus-visible,
.ds-pilot .settings-tabs .nav-link:hover,
.ds-pilot .settings-tabs .nav-link:focus-visible {
  color: var(--ds-color-brand);
}

.ds-pilot .nav-tabs .nav-link.active,
.ds-pilot .settings-tabs .nav-link.active {
  color: var(--ds-color-brand);
  background: var(--ds-color-surface);
  border-color: var(--ds-color-border) var(--ds-color-border) var(--ds-color-surface);
}

.ds-pilot :focus-visible {
  outline: 3px solid color-mix(in srgb, var(--ds-color-info) 52%, transparent);
  outline-offset: 2px;
}

@media (max-width: 767.98px) {
  .ds-pilot .page-header,
  .ds-pilot .dash-hero,
  .ds-pilot .finance-hero {
    padding: var(--ds-space-4) !important;
  }

  .ds-pilot .btn:not(.btn-icon) {
    min-height: 2.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ds-pilot *,
  .ds-pilot *::before,
  .ds-pilot *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

.ds-pilot .ds-divider { border-color: var(--ds-color-border); opacity: 1; }
.ds-pilot .ds-section { margin-bottom: var(--ds-space-6); }
.ds-pilot .ds-stat-card { border-radius: var(--ds-radius-lg); }
.ds-pilot .ds-stat-icon {
  width: 2.5rem; height: 2.5rem; display: inline-flex; align-items: center;
  justify-content: center; border-radius: var(--ds-radius-md);
  color: var(--ds-color-brand); background: color-mix(in srgb, var(--ds-color-brand) 10%, transparent);
}
.ds-pilot .ds-filter-bar { padding: var(--ds-space-5); background: var(--ds-color-surface); border: 1px solid var(--ds-color-border); border-radius: var(--ds-radius-lg); }
.ds-pilot .ds-empty-state { color: var(--ds-color-text); }
.ds-pilot .compose-channel-tabs { display: flex; gap: var(--ds-space-2); flex-wrap: wrap; margin-bottom: var(--ds-space-4); }
.ds-pilot .compose-channel-tab { display: inline-flex; align-items: center; gap: var(--ds-space-2); padding: var(--ds-space-3) var(--ds-space-4); color: var(--ds-color-text-muted); background: var(--ds-color-surface); border: 1px solid var(--ds-color-border); border-radius: var(--ds-radius-md); font-weight: var(--ds-font-weight-semibold); text-decoration: none; }
.ds-pilot .compose-channel-tab:hover, .ds-pilot .compose-channel-tab:focus-visible, .ds-pilot .compose-channel-tab.active { color: var(--ds-color-brand); border-color: var(--ds-color-brand); background: color-mix(in srgb, var(--ds-color-brand) 7%, var(--ds-color-surface)); }
.ds-pilot .admission-wizard { margin-bottom: var(--ds-space-4); padding: var(--ds-space-5); background: var(--ds-color-surface); border: 1px solid var(--ds-color-border); border-radius: var(--ds-radius-lg); }
.ds-pilot .admission-wizard-toolbar { display: flex; align-items: center; justify-content: space-between; gap: var(--ds-space-4); margin-bottom: var(--ds-space-4); }
.ds-pilot .admission-wizard-kicker { display: block; color: var(--ds-color-brand); font-size: var(--ds-font-size-xs); font-weight: var(--ds-font-weight-bold); letter-spacing: .08em; text-transform: uppercase; }
.ds-pilot .admission-stepper { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: var(--ds-space-2); padding: 0; margin: 0; list-style: none; }
.ds-pilot .admission-step { min-width: 0; }
.ds-pilot .admission-step-button { width: 100%; min-height: 3.5rem; padding: var(--ds-space-2); display: flex; align-items: center; gap: var(--ds-space-2); color: var(--ds-color-text-muted); background: transparent; border: 1px solid var(--ds-color-border); border-radius: var(--ds-radius-md); text-align: left; }
.ds-pilot .admission-step-button:hover, .ds-pilot .admission-step-button:focus-visible { color: var(--ds-color-brand); border-color: var(--ds-color-brand); }
.ds-pilot .admission-step-number { width: 1.75rem; height: 1.75rem; flex: 0 0 auto; display: inline-flex; align-items: center; justify-content: center; color: var(--ds-color-text-muted); border: 1px solid var(--ds-color-border-strong); border-radius: 50%; font-weight: var(--ds-font-weight-bold); }
.ds-pilot .admission-step-label { min-width: 0; font-size: var(--ds-font-size-xs); font-weight: var(--ds-font-weight-semibold); }
.ds-pilot .admission-step.is-active .admission-step-button { color: var(--ds-color-brand); border-color: var(--ds-color-brand); background: color-mix(in srgb, var(--ds-color-brand) 7%, var(--ds-color-surface)); }
.ds-pilot .admission-step.is-active .admission-step-number, .ds-pilot .admission-step.is-complete .admission-step-number { color: #fff; background: var(--ds-color-brand); border-color: var(--ds-color-brand); }
.ds-pilot .admission-step.is-complete .admission-step-button { color: var(--ds-color-success); border-color: color-mix(in srgb, var(--ds-color-success) 40%, var(--ds-color-border)); }
.ds-pilot .admission-step-panel[hidden] { display: none !important; }
.ds-pilot .admission-section-title { color: var(--ds-color-brand); }
.ds-pilot .admission-review { padding: var(--ds-space-6); }
.ds-pilot .admission-review-header { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--ds-space-4); padding-bottom: var(--ds-space-5); margin-bottom: var(--ds-space-5); border-bottom: 1px solid var(--ds-color-border); }
.ds-pilot .admission-review-header > i { color: var(--ds-color-brand); font-size: 2rem; }
.ds-pilot .admission-review-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--ds-space-4); }
.ds-pilot .admission-review-card { padding: var(--ds-space-4); background: var(--ds-color-surface-muted); border: 1px solid var(--ds-color-border); border-radius: var(--ds-radius-md); }
.ds-pilot .admission-review-list { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: var(--ds-space-2) var(--ds-space-4); margin: 0; font-size: var(--ds-font-size-sm); }
.ds-pilot .admission-review-list dt { color: var(--ds-color-text-muted); font-weight: var(--ds-font-weight-semibold); }
.ds-pilot .admission-review-list dd { margin: 0; overflow-wrap: anywhere; }
.ds-pilot .admission-draft-status { min-height: 1.25rem; margin-top: var(--ds-space-3); color: var(--ds-color-text-muted); font-size: var(--ds-font-size-sm); }
@media (max-width: 767.98px) {
  .ds-pilot .admission-wizard-toolbar { align-items: flex-start; flex-direction: column; }
  .ds-pilot .admission-stepper { display: flex; overflow-x: auto; padding-bottom: var(--ds-space-2); }
  .ds-pilot .admission-step { min-width: 10rem; }
  .ds-pilot .admission-review-grid { grid-template-columns: 1fr; }
}

/* Shell navigation foundation shared by all role-specific nav partials. */
.nav-section-label {
  color: rgba(255, 255, 255, 0.58);
  font-size: var(--ds-font-size-xs);
  font-weight: var(--ds-font-weight-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.sidebar a.parent-active { box-shadow: inset 3px 0 0 var(--nav-highlight, #ffc107); }
.sidebar a.active,
.sidebar a.active-click { font-weight: var(--ds-font-weight-semibold); }
.header-search input:focus-visible { outline: 3px solid color-mix(in srgb, var(--ds-color-info) 52%, transparent); outline-offset: 2px; }