/* ==========================================================================
   base.css — design tokens, resets, typography, shared layout & components
   School Result Management System
   ========================================================================== */

/* -------------------------------------------------------------------------
   1. Design tokens
   ------------------------------------------------------------------------- */
:root {
  /* Backgrounds */
  --color-bg:            #F4F6F9;
  --color-surface:       #FFFFFF;
  --color-surface-alt:   #EEF2F7;

  /* Brand navy */
  --color-primary:       #0B2E59;
  --color-primary-hover: #0F3A70;
  --color-primary-light: #E7EDF6;
  --color-primary-rgb:   11, 46, 89;

  /* Secondary accent */
  --color-accent:        #1D6FB8;
  --color-accent-rgb:    29, 111, 184;

  /* Text */
  --color-text:          #1C2530;
  --color-text-muted:    #5B6B7C;
  --color-text-on-primary: #F4F6F9;

  /* Borders */
  --color-border:        #DCE3EC;
  --color-border-strong: #C3CEDB;

  /* Status */
  --color-success:       #1E7E45;
  --color-success-bg:    #E8F5EC;
  --color-warning:       #B8860B;
  --color-warning-bg:    #FCF3DC;
  --color-danger:        #B3261E;
  --color-danger-bg:     #FBEAE9;
  --color-info:          #1D6FB8;
  --color-info-bg:       #E8F1FA;

  /* Layout */
  --sidebar-width:        260px;
  --sidebar-width-collapsed: 72px;
  --navbar-height:        64px;
  --content-max-width:    1280px;

  /* Radii & shadows */
  --radius-sm:  0.375rem;
  --radius-md:  0.5rem;
  --radius-lg:  0.75rem;
  --shadow-card: 0 1px 3px rgba(var(--color-primary-rgb), 0.08), 0 1px 2px rgba(var(--color-primary-rgb), 0.06);
  --shadow-modal: 0 12px 32px rgba(var(--color-primary-rgb), 0.18);

  /* Typography */
  --font-family-base: "Inter", "Segoe UI", Roboto, system-ui, -apple-system, sans-serif;
  --font-family-serif: "Georgia", "Iowan Old Style", serif;
  --font-size-base: 1rem;
  --font-size-sm:   0.875rem;
  --font-size-xs:   0.75rem;
  --font-size-lg:   1.125rem;
  --font-size-xl:   1.375rem;
  --font-size-2xl:  1.75rem;
  --line-height-base: 1.5;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-8: 3rem;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 220ms ease;
}

/* -------------------------------------------------------------------------
   2. Reset & base element styles
   ------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html, body {
  height: 100%;
}

body {
  margin: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--space-3);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-text);
}

.content-area h1,
.content-area h2,
.page-title {
  color: var(--color-primary);
}

p { margin: 0 0 var(--space-3); }
p:last-child { margin-bottom: 0; }

a {
  color: var(--color-accent);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

small, .text-sm { font-size: var(--font-size-sm); }
.text-xs { font-size: var(--font-size-xs); }
.text-muted { color: var(--color-text-muted); }

table { font-variant-numeric: tabular-nums; }

img { max-width: 100%; display: block; }

::selection {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* -------------------------------------------------------------------------
   3. App shell: sidebar + navbar + content
   ------------------------------------------------------------------------- */
.app-shell {
  display: flex;
  min-height: 100vh;
}

/* --- Sidebar --- */
.app-sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  background-color: var(--color-primary);
  color: var(--color-text-on-primary);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 1030;
  transition: transform var(--transition-base);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-5) var(--space-4);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.sidebar-brand img {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
}

.sidebar-brand-name {
  font-weight: 700;
  font-size: var(--font-size-base);
  line-height: 1.2;
  color: #fff;
}

.sidebar-brand-role {
  font-size: var(--font-size-xs);
  color: rgba(244, 246, 249, 0.65);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.sidebar-term-indicator {
  margin: var(--space-3) var(--space-4);
  padding: var(--space-2) var(--space-3);
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  color: rgba(244, 246, 249, 0.85);
}

.sidebar-term-indicator strong {
  display: block;
  color: #fff;
  font-size: var(--font-size-sm);
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-3) var(--space-2);
  list-style: none;
  margin: 0;
}

.sidebar-nav-section {
  margin: var(--space-4) var(--space-2) var(--space-2);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(244, 246, 249, 0.5);
}

.sidebar-nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  margin: 2px 0;
  border-radius: var(--radius-sm);
  color: rgba(244, 246, 249, 0.85);
  font-size: var(--font-size-sm);
  border-left: 3px solid transparent;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.sidebar-nav-link:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  text-decoration: none;
}

.sidebar-nav-link.active {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-left-color: var(--color-accent);
  font-weight: 600;
}

.sidebar-nav-link .bi { font-size: 1.05rem; width: 1.2rem; text-align: center; }

.sidebar-footer-link {
  padding: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.sidebar-footer-link a {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: rgba(244, 246, 249, 0.75);
  font-size: var(--font-size-sm);
}
.sidebar-footer-link a:hover { color: #fff; text-decoration: none; }

/* Mobile sidebar off-canvas */
.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(11, 46, 89, 0.45);
  z-index: 1020;
}

@media (max-width: 991.98px) {
  .app-sidebar {
    transform: translateX(-100%);
  }
  body.sidebar-open .app-sidebar { transform: translateX(0); }
  body.sidebar-open .sidebar-backdrop { display: block; }
}

/* --- Main column (navbar + content) --- */
.app-main {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-width: 0;
}

@media (max-width: 991.98px) {
  .app-main { margin-left: 0; }
}

.app-navbar {
  height: var(--navbar-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-5);
  position: sticky;
  top: 0;
  z-index: 1010;
}

.navbar-left {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
}

.navbar-hamburger {
  display: none;
  background: none;
  border: none;
  font-size: 1.35rem;
  color: var(--color-primary);
  cursor: pointer;
  padding: var(--space-1) var(--space-2);
}

@media (max-width: 991.98px) {
  .navbar-hamburger { display: inline-flex; }
}

.navbar-page-title {
  font-weight: 700;
  font-size: var(--font-size-lg);
  color: var(--color-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.navbar-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-shrink: 0;
}

.navbar-user {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.navbar-user-name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
}

.avatar-initial {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--font-size-sm);
  flex-shrink: 0;
}

.navbar-logout-icon {
  display: none;
  color: var(--color-text-muted);
  font-size: 1.2rem;
}
@media (max-width: 575.98px) {
  .navbar-user-name { display: none; }
  .navbar-logout-icon { display: inline-flex; }
}

/* --- Content area --- */
.content-area {
  flex: 1;
  padding: var(--space-6);
  max-width: var(--content-max-width);
  width: 100%;
}

@media (max-width: 575.98px) {
  .content-area { padding: var(--space-4); }
}

/* --- Footer --- */
.app-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* -------------------------------------------------------------------------
   4. Cards
   ------------------------------------------------------------------------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}

.card-header {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.card-header h2, .card-header h3 {
  margin: 0;
  font-size: var(--font-size-lg);
  color: var(--color-text);
}

.card-body { padding: var(--space-5); }

/* Stat tile */
.stat-tile {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: var(--space-5);
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.stat-tile-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.stat-tile-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.1;
}

.stat-tile-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* -------------------------------------------------------------------------
   5. Buttons
   ------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
  line-height: 1.3;
}

.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: #fff;
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.btn-outline-danger {
  background: var(--color-surface);
  color: var(--color-danger);
  border-color: var(--color-danger);
}
.btn-outline-danger:hover:not(:disabled) {
  background: var(--color-danger);
  color: #fff;
}

.btn-danger {
  background: var(--color-danger);
  color: #fff;
  border-color: var(--color-danger);
}
.btn-danger:hover:not(:disabled) { background: #93211b; border-color: #93211b; }

.btn-link {
  background: none;
  border: none;
  color: var(--color-accent);
  padding: 0.25rem 0.25rem;
  font-weight: 600;
}
.btn-link:hover { text-decoration: underline; }

.btn-sm { padding: 0.3rem 0.65rem; font-size: var(--font-size-xs); }
.btn-icon { padding: 0.4rem; width: 2.1rem; height: 2.1rem; }

.btn-spinner {
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
.btn-secondary .btn-spinner,
.btn-outline-danger .btn-spinner {
  border-color: rgba(var(--color-primary-rgb), 0.25);
  border-top-color: var(--color-primary);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* -------------------------------------------------------------------------
   6. Forms
   ------------------------------------------------------------------------- */
.form-group { margin-bottom: var(--space-4); }

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.form-label .required { color: var(--color-danger); margin-left: 2px; }

.form-control,
.form-select {
  width: 100%;
  padding: 0.55rem 0.75rem;
  font-size: var(--font-size-sm);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(var(--color-accent-rgb), 0.15);
}

.form-control.is-invalid { border-color: var(--color-danger); }
.form-control.is-valid { border-color: var(--color-success); }

.form-hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

.form-feedback {
  font-size: var(--font-size-xs);
  margin-top: var(--space-1);
  display: none;
}
.form-feedback.invalid { color: var(--color-danger); display: block; }
.form-feedback.valid { color: var(--color-success); display: block; }

.form-actions {
  display: flex;
  gap: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-5);
}

.input-with-button { display: flex; gap: var(--space-2); }

/* -------------------------------------------------------------------------
   7. Tables
   ------------------------------------------------------------------------- */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-md);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  font-size: var(--font-size-sm);
}

.data-table th {
  background: var(--color-primary-light);
  color: var(--color-primary);
  text-align: left;
  font-weight: 700;
  padding: var(--space-3) var(--space-4);
  white-space: nowrap;
  border-bottom: 1px solid var(--color-border);
}

.data-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  vertical-align: middle;
}

.data-table tbody tr:hover { background: var(--color-surface-alt); }
.data-table tbody tr:last-child td { border-bottom: none; }

.data-table .cell-muted { color: var(--color-text-muted); }
.data-table .cell-numeric { text-align: right; font-variant-numeric: tabular-nums; }

.row-actions { display: flex; gap: var(--space-2); justify-content: flex-end; }

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: var(--font-size-xs);
  font-weight: 600;
}
.badge-success { background: var(--color-success-bg); color: var(--color-success); }
.badge-warning { background: var(--color-warning-bg); color: var(--color-warning); }
.badge-danger  { background: var(--color-danger-bg);  color: var(--color-danger); }
.badge-info    { background: var(--color-info-bg);    color: var(--color-info); }
.badge-neutral { background: var(--color-surface-alt); color: var(--color-text-muted); }

/* -------------------------------------------------------------------------
   8. Alerts / flash messages / toasts
   ------------------------------------------------------------------------- */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  border-left: 4px solid transparent;
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-3);
}

.alert:last-child { margin-bottom: 0; }

.alert-success { background: var(--color-success-bg); color: var(--color-success); border-left-color: var(--color-success); }
.alert-danger  { background: var(--color-danger-bg);  color: var(--color-danger);  border-left-color: var(--color-danger); }
.alert-warning { background: var(--color-warning-bg); color: var(--color-warning); border-left-color: var(--color-warning); }
.alert-info    { background: var(--color-info-bg);    color: var(--color-info);    border-left-color: var(--color-info); }

.alert-close {
  margin-left: auto;
  background: none;
  border: none;
  color: inherit;
  opacity: 0.6;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
}
.alert-close:hover { opacity: 1; }

.flash-container {
  position: fixed;
  top: var(--space-4);
  right: var(--space-4);
  z-index: 1080;
  width: min(360px, calc(100vw - 2rem));
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.flash-container .alert {
  box-shadow: var(--shadow-modal);
  animation: toast-in var(--transition-base);
}

@keyframes toast-in {
  from { transform: translateY(-8px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* -------------------------------------------------------------------------
   9. Modals
   ------------------------------------------------------------------------- */
.modal-backdrop-custom {
  position: fixed;
  inset: 0;
  background: rgba(11, 46, 89, 0.45);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1050;
  padding: var(--space-4);
}
.modal-backdrop-custom.show { display: flex; }

.modal-box {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  width: 100%;
  max-width: 480px;
  max-height: calc(100vh - 2rem);
  overflow-y: auto;
}

.modal-box-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-5) var(--space-3);
}

.modal-box-header h3 {
  margin: 0;
  font-size: var(--font-size-lg);
  color: var(--color-primary);
}

.modal-box-close {
  background: none;
  border: none;
  font-size: 1.1rem;
  color: var(--color-text-muted);
  cursor: pointer;
}

.modal-box-body { padding: 0 var(--space-5) var(--space-4); color: var(--color-text); font-size: var(--font-size-sm); }

.modal-box-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--color-border);
}

.modal-box-icon-danger {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-danger-bg);
  color: var(--color-danger);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  margin-bottom: var(--space-3);
}

/* -------------------------------------------------------------------------
   10. Empty states
   ------------------------------------------------------------------------- */
.empty-state {
  text-align: center;
  padding: var(--space-8) var(--space-5);
  color: var(--color-text-muted);
}

.empty-state-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin: 0 auto var(--space-4);
}

.empty-state h3 {
  color: var(--color-text);
  font-size: var(--font-size-base);
  margin-bottom: var(--space-2);
}

/* -------------------------------------------------------------------------
   11. Utilities
   ------------------------------------------------------------------------- */
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.mb-0 { margin-bottom: 0 !important; }
.mb-3 { margin-bottom: var(--space-3) !important; }
.mb-4 { margin-bottom: var(--space-4) !important; }
.mb-5 { margin-bottom: var(--space-5) !important; }
.section-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}
/* -------------------------------------------------------------------------
   12. Filter bar (list screens: search + dropdown filters)
   ------------------------------------------------------------------------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.filter-search {
  position: relative;
  flex: 1 1 240px;
  min-width: 200px;
}

.filter-search .bi-search {
  position: absolute;
  left: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  font-size: 0.9rem;
  pointer-events: none;
}

.filter-search .form-control { padding-left: calc(var(--space-3) * 2 + 0.9rem); }

.filter-select {
  flex: 0 0 auto;
  min-width: 160px;
}

.filter-bar .form-select { padding: 0.5rem 2rem 0.5rem 0.75rem; font-size: var(--font-size-sm); }

.filter-clear {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}
.filter-clear:hover { color: var(--color-danger); text-decoration: underline; }

/* -------------------------------------------------------------------------
   13. Row actions dropdown (Edit / Deactivate / Reset Password / View History)
   ------------------------------------------------------------------------- */
.row-actions-menu { position: relative; display: inline-block; }

.row-actions-trigger {
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 1.1rem;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.row-actions-trigger:hover { background: var(--color-surface-alt); color: var(--color-text); }

.row-actions-dropdown {
  display: none;
  position: absolute;
  right: 0;
  top: calc(100% + 4px);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-modal);
  min-width: 190px;
  z-index: 1040;
  overflow: hidden;
}
.row-actions-dropdown.show { display: block; }

.row-actions-dropdown a,
.row-actions-dropdown button {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  text-align: left;
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  background: none;
  border: none;
  cursor: pointer;
}
.row-actions-dropdown a:hover,
.row-actions-dropdown button:hover { background: var(--color-surface-alt); text-decoration: none; }
.row-actions-dropdown .text-danger { color: var(--color-danger); }
.row-actions-dropdown .divider { border-top: 1px solid var(--color-border); margin: var(--space-1) 0; }

/* -------------------------------------------------------------------------
   14. Pagination
   ------------------------------------------------------------------------- */
.pagination-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4) 0 0;
}

.pagination-controls { display: flex; align-items: center; gap: var(--space-2); }

.pagination-pages { display: flex; gap: 2px; }

.pagination-page {
  width: 2rem;
  height: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  background: none;
  border: 1px solid transparent;
  cursor: pointer;
}
.pagination-page:hover { background: var(--color-surface-alt); }
.pagination-page.active {
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
}

/* -------------------------------------------------------------------------
   15. Status dot (row-level saved/active indicator)
   ------------------------------------------------------------------------- */
.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 6px;
}
.status-dot.active { background: var(--color-success); }
.status-dot.inactive { background: var(--color-text-muted); }

/* -------------------------------------------------------------------------
   16. Two-column form layout (student/teacher forms)
   ------------------------------------------------------------------------- */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0 var(--space-5);
}
.form-grid .form-group.full-width { grid-column: 1 / -1; }

@media (max-width: 767.98px) {
  .form-grid { grid-template-columns: 1fr; }
}

.form-section-heading {
  font-size: var(--font-size-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  margin: var(--space-5) 0 var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border);
}
.form-section-heading:first-child { margin-top: 0; }

/* -------------------------------------------------------------------------
   17. CSV import dropzone + preview table row states
   ------------------------------------------------------------------------- */
.import-dropzone {
  border: 2px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
  padding: var(--space-6);
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.import-dropzone:hover,
.import-dropzone.dragover {
  border-color: var(--color-accent);
  background: var(--color-primary-light);
}
.import-dropzone input[type="file"] { display: none; }

.import-dropzone-icon {
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.import-file-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-primary-light);
  color: var(--color-primary);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 600;
}
.import-file-chip button {
  background: none;
  border: none;
  color: var(--color-primary);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
}

.data-table tbody tr.row-error {
  background: var(--color-danger-bg);
}
.data-table tbody tr.row-error:hover { background: var(--color-danger-bg); }
.data-table tbody tr.row-warning {
  background: var(--color-warning-bg);
}
.data-table tbody tr.row-warning:hover { background: var(--color-warning-bg); }

.row-error-note {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: var(--font-size-xs);
  color: var(--color-danger);
  margin-top: 2px;
}

.import-summary-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-alt);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-4);
}
.import-summary-bar strong { color: var(--color-text); }

/* -------------------------------------------------------------------------
   18. Two-column assignment builder
   ------------------------------------------------------------------------- */
.assignment-builder {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: var(--space-5);
  align-items: start;
}
@media (max-width: 900px) {
  .assignment-builder { grid-template-columns: 1fr; }
}

.subject-picker-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  max-height: 320px;
  overflow-y: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-2);
}

.subject-picker-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
}
.subject-picker-item:hover { background: var(--color-surface-alt); }

.assignment-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  margin: 2px;
}
.assignment-chip button {
  background: none;
  border: none;
  color: var(--color-primary);
  cursor: pointer;
  font-size: 0.85rem;
  line-height: 1;
  opacity: 0.7;
}
.assignment-chip button:hover { opacity: 1; }

/* -------------------------------------------------------------------------
   19. Editable table (grading scale)
   ------------------------------------------------------------------------- */
.data-table input.table-inline-input {
  width: 100%;
  border: 1px solid transparent;
  background: transparent;
  padding: 0.3rem 0.4rem;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-family: inherit;
  color: var(--color-text);
}
.data-table input.table-inline-input:hover { border-color: var(--color-border-strong); }
.data-table input.table-inline-input:focus {
  outline: none;
  border-color: var(--color-accent);
  background: var(--color-surface);
  box-shadow: 0 0 0 3px rgba(var(--color-accent-rgb), 0.15);
}
.data-table input.table-inline-input.is-invalid { border-color: var(--color-danger); background: var(--color-danger-bg); }

.config-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}
.config-row .form-group { margin-bottom: 0; min-width: 160px; }

/* -------------------------------------------------------------------------
   20. Progress bar (completion %, finalize term)
   ------------------------------------------------------------------------- */
.progress-track {
  width: 100%;
  height: 8px;
  background: var(--color-surface-alt);
  border-radius: 999px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  border-radius: 999px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}
.progress-fill.complete { background: var(--color-success); }
.progress-fill.partial { background: var(--color-warning); }
.progress-fill.empty { background: var(--color-text-muted); }

.progress-row { display: flex; align-items: center; gap: var(--space-3); min-width: 160px; }
.progress-row .progress-track { flex: 1; }
.progress-row .progress-label { font-size: var(--font-size-xs); color: var(--color-text-muted); min-width: 3.2rem; text-align: right; }

/* Incomplete-students list inside the override modal */
.incomplete-list {
  max-height: 220px;
  overflow-y: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-top: var(--space-3);
}
.incomplete-list-item {
  display: flex;
  justify-content: space-between;
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-sm);
  border-bottom: 1px solid var(--color-border);
}
.incomplete-list-item:last-child { border-bottom: none; }

/* Position medal badges on the class result overview */
.position-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  font-weight: 700;
  font-size: var(--font-size-xs);
  background: var(--color-surface-alt);
  color: var(--color-text-muted);
}
.position-badge.gold   { background: #FCEFC7; color: #8A6D00; }
.position-badge.silver { background: #E7ECEF; color: #5B6B7C; }
.position-badge.bronze { background: #F4E1D2; color: #8A4B22; }

/* -------------------------------------------------------------------------
   21. Teacher dashboard — assigned class/subject cards
   ------------------------------------------------------------------------- */
.assignment-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-4);
}

.assignment-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  text-decoration: none;
  color: inherit;
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}
.assignment-card:hover {
  box-shadow: 0 4px 14px rgba(var(--color-primary-rgb), 0.14);
  transform: translateY(-2px);
  text-decoration: none;
}

.assignment-card-title { font-weight: 700; color: var(--color-primary); font-size: var(--font-size-lg); }
.assignment-card-subtitle { font-size: var(--font-size-sm); color: var(--color-text-muted); margin-top: -6px; }

.assignment-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* -------------------------------------------------------------------------
   22. Score entry table
   ------------------------------------------------------------------------- */
.score-entry-wrapper { overflow-x: auto; }

.score-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  font-size: var(--font-size-sm);
  min-width: 780px;
}

.score-table th {
  background: var(--color-primary-light);
  color: var(--color-primary);
  text-align: center;
  font-weight: 700;
  padding: var(--space-3);
  white-space: nowrap;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 5;
}
.score-table th:first-child { text-align: left; }

.score-table td {
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
  vertical-align: middle;
}
.score-table td:first-child { text-align: left; font-weight: 600; }
.score-table tbody tr:hover { background: var(--color-surface-alt); }

.score-input {
  width: 64px;
  text-align: center;
  padding: 0.4rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-variant-numeric: tabular-nums;
}
.score-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(var(--color-accent-rgb), 0.15);
}
.score-input.is-invalid {
  border-color: var(--color-danger);
  background: var(--color-danger-bg);
}
.score-input:disabled {
  background: var(--color-surface-alt);
  color: var(--color-text-muted);
  cursor: not-allowed;
}

.score-cell-tooltip {
  position: relative;
  display: inline-block;
}
.score-cell-tooltip .tooltip-bubble {
  display: none;
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-danger);
  color: #fff;
  padding: 0.25rem 0.55rem;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  white-space: nowrap;
  z-index: 10;
}
.score-cell-tooltip.show-tooltip .tooltip-bubble { display: block; }

.row-save-dot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  font-size: 0.7rem;
}
.row-save-dot.saved { background: var(--color-success-bg); color: var(--color-success); }
.row-save-dot.unsaved { background: var(--color-warning-bg); color: var(--color-warning); }

.locked-term-banner {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  background: var(--color-warning-bg);
  color: #7A5C00;
  border: 1px solid rgba(184, 134, 11, 0.25);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  margin-bottom: var(--space-4);
}
.locked-term-banner i { font-size: 1.3rem; }

.score-entry-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

/* -------------------------------------------------------------------------
   23. Parent/Student portal — dashboard
   ------------------------------------------------------------------------- */
.student-identity-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: var(--space-5);
  margin-bottom: var(--space-5);
}

.student-identity-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--font-size-lg);
  flex-shrink: 0;
}

.student-identity-name { font-weight: 700; font-size: var(--font-size-lg); color: var(--color-text); }
.student-identity-meta { font-size: var(--font-size-sm); color: var(--color-text-muted); }

.term-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--space-4);
}

.term-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: var(--space-5);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}
.term-card:hover { box-shadow: 0 4px 14px rgba(var(--color-primary-rgb), 0.14); transform: translateY(-2px); text-decoration: none; }

.term-card-title { font-weight: 700; color: var(--color-primary); }
.term-card-meta { font-size: var(--font-size-sm); color: var(--color-text-muted); }
.term-card-cta { font-size: var(--font-size-xs); color: var(--color-accent); font-weight: 600; margin-top: auto; }


/* -------------------------------------------------------------------------
   24. Standalone error pages (403 / 404 / 500 / generic)
   ------------------------------------------------------------------------- */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  padding: var(--space-5);
}

.error-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-6) var(--space-6);
  max-width: 440px;
  width: 100%;
  text-align: center;
}

.error-card-icon {
  font-size: 2.5rem;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.error-card-code {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

.error-card-title {
  font-size: var(--font-size-xl, 1.35rem);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.error-card-message {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
}