/* ============================================================
   SIAKAD Dashboard UI — built on design tokens
   ============================================================ */

/* ---------------- Buttons ---------------- */

.btn {
  --bs-btn-font-weight: 600;
  --bs-btn-font-size: 0.85rem;
  border-radius: var(--radius-md);
  padding: 0.55rem 1rem;
  letter-spacing: 0.01em;
  transition: all var(--transition-base);
}

.btn:disabled, .btn[disabled] {
  cursor: not-allowed;
  opacity: 0.55;
}

.btn-primary {
  --bs-btn-bg: var(--color-primary);
  --bs-btn-border-color: var(--color-primary);
  --bs-btn-hover-bg: var(--color-primary-hover);
  --bs-btn-hover-border-color: var(--color-primary-hover);
  --bs-btn-active-bg: var(--color-black);
  --bs-btn-active-border-color: var(--color-black);
  --bs-btn-disabled-bg: var(--color-gray-400);
  --bs-btn-disabled-border-color: var(--color-gray-400);
}

.btn-outline-dark {
  --bs-btn-color: var(--color-text);
  --bs-btn-border-color: var(--color-gray-400);
  --bs-btn-hover-bg: var(--color-primary);
  --bs-btn-hover-border-color: var(--color-primary);
  --bs-btn-active-bg: var(--color-primary-hover);
}

.btn-ghost {
  --bs-btn-color: var(--color-gray-700);
  --bs-btn-bg: transparent;
  --bs-btn-border-color: transparent;
  --bs-btn-hover-bg: var(--color-gray-100);
  --bs-btn-hover-color: var(--color-text);
  --bs-btn-active-bg: var(--color-gray-200);
}

.btn-light {
  --bs-btn-bg: var(--color-gray-100);
  --bs-btn-border-color: var(--color-gray-200);
  --bs-btn-color: var(--color-gray-800);
  --bs-btn-hover-bg: var(--color-gray-200);
  --bs-btn-hover-border-color: var(--color-gray-300);
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  border-radius: var(--radius-md);
}

.btn-group-sm > .btn, .btn-sm {
  padding: 0.35rem 0.7rem;
  font-size: 0.78rem;
}

/* ---------------- Cards ---------------- */

.card {
  --bs-card-border-radius: var(--radius-lg);
  --bs-card-border-color: var(--color-border);
  --bs-card-bg: var(--bg-surface);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
  border: 1px solid var(--color-border);
}

.card-hover:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-header {
  background: transparent;
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) var(--space-5);
  font-weight: var(--fw-semibold);
}

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

.card-title {
  font-size: var(--fs-md);
  font-weight: var(--fw-bold);
  margin-bottom: var(--space-1);
}

/* Stat card */
.stat-card {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5);
}

.stat-card .stat-icon {
  flex-shrink: 0;
  width: 3rem;
  height: 3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: 1.25rem;
}

.stat-card .stat-label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.stat-card .stat-value {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-extrabold);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.stat-card .stat-trend {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

/* ---------------- Badges ---------------- */

.badge {
  font-weight: var(--fw-semibold);
  font-size: var(--fs-xs);
  padding: 0.4em 0.7em;
  border-radius: var(--radius-pill);
  letter-spacing: 0.02em;
}

.badge.bg-success { background-color: var(--color-success-soft) !important; color: var(--color-success) !important; }
.badge.bg-danger { background-color: var(--color-danger-soft) !important; color: var(--color-danger) !important; }
.badge.bg-warning { background-color: var(--color-warning-soft) !important; color: var(--color-warning) !important; }
.badge.bg-info { background-color: var(--color-info-soft) !important; color: var(--color-info) !important; }
.badge.bg-secondary, .badge.bg-dark {
  background-color: var(--color-gray-100) !important;
  color: var(--color-gray-700) !important;
  border: 1px solid var(--color-gray-200);
}
.badge.bg-primary { background-color: var(--color-ink) !important; color: #fff !important; }

/* ---------------- Color utilities (monochrome) ---------------- */

.bg-primary { background-color: var(--color-primary) !important; }
.text-primary { color: var(--color-primary) !important; }

/* ---------------- Tables ---------------- */

.table {
  --bs-table-color: var(--color-text);
  --bs-table-bg: transparent;
  --bs-table-hover-bg: var(--color-gray-50);
  margin-bottom: 0;
  font-size: var(--fs-sm);
}

.table thead th {
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-gray-300);
  background: var(--color-gray-50);
  padding: var(--space-3) var(--space-4);
  white-space: nowrap;
}

.table tbody td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-gray-100);
  vertical-align: middle;
}

.table tbody tr:last-child td {
  border-bottom: 0;
}

.table tbody tr:hover {
  background: var(--color-gray-50);
}

.table .actions {
  white-space: nowrap;
  text-align: right;
}

.table .actions .btn {
  margin-left: var(--space-1);
}

.table-responsive {
  border-radius: var(--radius-md);
}

/* ---------------- Forms ---------------- */

.form-label {
  font-weight: var(--fw-semibold);
  font-size: var(--fs-sm);
  color: var(--color-gray-800);
  margin-bottom: var(--space-2);
}

.form-label .req {
  color: var(--color-danger);
}

.form-control, .form-select {
  --bs-body-font-size: var(--fs-base);
  border-color: var(--color-gray-300);
  border-radius: var(--radius-md);
  padding: 0.55rem 0.85rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  font-size: var(--fs-base);
}

.form-control:focus, .form-select:focus {
  border-color: var(--color-primary);
  box-shadow: var(--focus-ring);
}

.form-control::placeholder {
  color: var(--color-gray-400);
}

.form-text {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}

.form-check-input:checked {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

.form-check-input:focus {
  border-color: var(--color-primary);
  box-shadow: var(--focus-ring);
}

.input-group-text {
  background: var(--color-gray-100);
  border-color: var(--color-gray-300);
  color: var(--color-text-soft);
}

.was-validated .form-control:invalid, .form-control.is-invalid {
  border-color: var(--color-danger);
}

/* ---------------- Avatar ---------------- */

.avatar {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: var(--radius-pill);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--fw-bold);
  font-size: var(--fs-sm);
  color: var(--color-on-primary);
  background: var(--color-primary);
  overflow: hidden;
  flex-shrink: 0;
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avatar-sm { width: 2rem; height: 2rem; font-size: 0.7rem; }
.avatar-lg { width: 4rem; height: 4rem; font-size: var(--fs-lg); border-radius: var(--radius-lg); }
.avatar-xl { width: 6rem; height: 6rem; font-size: var(--fs-2xl); border-radius: var(--radius-xl); }

/* ---------------- Pagination ---------------- */

.pagination {
  gap: var(--space-1);
}

.page-link {
  border: 1px solid var(--color-border);
  color: var(--color-gray-700);
  border-radius: var(--radius-md) !important;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  padding: 0.4rem 0.75rem;
}

.page-link:hover {
  background: var(--color-gray-100);
  border-color: var(--color-gray-300);
  color: var(--color-text);
}

.page-item.active .page-link {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-on-primary);
}

.page-item.disabled .page-link {
  color: var(--color-gray-400);
  background: transparent;
}

/* ---------------- Empty state ---------------- */

.empty-state {
  text-align: center;
  padding: var(--space-10) var(--space-6);
}

.empty-state .empty-icon {
  width: 4.5rem;
  height: 4.5rem;
  margin: 0 auto var(--space-4);
  border-radius: var(--radius-xl);
  background: var(--color-gray-100);
  border: 1px dashed var(--color-gray-300);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  color: var(--color-gray-500);
}

.empty-state .empty-title {
  font-weight: var(--fw-bold);
  font-size: var(--fs-md);
  margin-bottom: var(--space-1);
}

.empty-state .empty-desc {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  max-width: 420px;
  margin: 0 auto var(--space-5);
}

/* ---------------- Alerts ---------------- */

.alert {
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  font-size: var(--fs-sm);
}

.alert-dismissible .btn-close {
  filter: none;
}

/* ---------------- Sidebar ---------------- */

.app-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--color-ink);
  color: var(--color-gray-300);
  display: flex;
  flex-direction: column;
  z-index: var(--z-sidebar);
  transition: width var(--transition-slow), transform var(--transition-slow);
  overflow: hidden;
}

.app-sidebar .sidebar-brand {
  height: var(--navbar-height);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0 var(--space-5);
  color: var(--color-white);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  flex-shrink: 0;
}

.app-sidebar .sidebar-brand .brand-logo {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: var(--radius-md);
  background: var(--color-white);
  color: var(--color-black);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--fw-extrabold);
  flex-shrink: 0;
  overflow: hidden;
}

.app-sidebar .sidebar-brand .brand-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 4px;
}

.app-sidebar .sidebar-brand .brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  min-width: 0;
}

.app-sidebar .sidebar-brand .brand-text strong {
  font-size: var(--fs-sm);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.app-sidebar .sidebar-brand .brand-text span {
  font-size: 0.65rem;
  color: var(--color-gray-500);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.app-sidebar .sidebar-nav {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: var(--space-4) var(--space-3) var(--space-6);
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.15) transparent;
}

.app-sidebar .sidebar-nav::-webkit-scrollbar { width: 5px; }
.app-sidebar .sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.15); border-radius: 999px; }

.nav-section-title {
  font-size: 0.62rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gray-500);
  padding: var(--space-5) var(--space-3) var(--space-2);
  white-space: nowrap;
}

.nav-item-single, .nav-item-accordion > a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0.62rem var(--space-3);
  margin-bottom: 2px;
  border-radius: var(--radius-md);
  color: var(--color-gray-400);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  transition: background var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
}

.nav-item-single i, .nav-item-accordion > a > i {
  width: 1.1rem;
  text-align: center;
  font-size: 0.95rem;
  flex-shrink: 0;
}

.nav-item-single:hover, .nav-item-accordion > a:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-white);
}

.nav-item-single.active, .nav-item-accordion.active > a {
  background: var(--color-white);
  color: var(--color-black);
  font-weight: var(--fw-semibold);
}

.nav-chevron {
  margin-left: auto;
  font-size: 0.7rem;
  transition: transform var(--transition-fast);
}

.nav-item-accordion.open .nav-chevron {
  transform: rotate(90deg);
}

.nav-submenu {
  margin-left: var(--space-3);
  padding-left: var(--space-4);
  border-left: 1px solid rgba(255, 255, 255, 0.1);
  display: none;
}

.nav-item-accordion.open .nav-submenu {
  display: block;
  animation: submenu-in var(--transition-fast);
}

@keyframes submenu-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.nav-submenu a {
  display: block;
  padding: 0.5rem var(--space-3);
  font-size: var(--fs-sm);
  color: var(--color-gray-400);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.nav-submenu a:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.05);
}

.nav-submenu a.active {
  color: var(--color-white);
  font-weight: var(--fw-semibold);
}

.sidebar-footer {
  padding: var(--space-3);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  flex-shrink: 0;
}

/* Collapsed mode */
.app-sidebar.collapsed { width: var(--sidebar-width-collapsed); }

.app-sidebar.collapsed .sidebar-brand { justify-content: center; padding: 0; }
.app-sidebar.collapsed .brand-text,
.app-sidebar.collapsed .nav-section-title,
.app-sidebar.collapsed .nav-item-single span,
.app-sidebar.collapsed .nav-item-accordion > a span,
.app-sidebar.collapsed .nav-chevron,
.app-sidebar.collapsed .nav-submenu,
.app-sidebar.collapsed .sidebar-footer span,
.app-sidebar.collapsed .sidebar-footer .btn-text {
  display: none;
}

.app-sidebar.collapsed .nav-item-single,
.app-sidebar.collapsed .nav-item-accordion > a {
  justify-content: center;
  padding: 0.62rem 0;
}

.app-sidebar.collapsed .sidebar-footer .btn {
  justify-content: center;
  padding: 0.62rem 0;
}

.app-main {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: margin-left var(--transition-slow);
}

.app-main.expanded {
  margin-left: var(--sidebar-width-collapsed);
}

/* Mobile offcanvas */
.sidebar-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: calc(var(--z-sidebar) - 1);
  display: none;
  opacity: 0;
  transition: opacity var(--transition-base);
}

@media (max-width: 991.98px) {
  .app-sidebar {
    transform: translateX(-100%);
  }

  .app-sidebar.show {
    transform: translateX(0);
  }

  .app-sidebar.collapsed {
    width: var(--sidebar-width);
  }

  .sidebar-backdrop.show {
    display: block;
    opacity: 1;
  }

  .app-main, .app-main.expanded {
    margin-left: 0;
  }
}

/* ---------------- Top navbar ---------------- */

.app-navbar {
  position: sticky;
  top: 0;
  height: var(--navbar-height);
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: 0 var(--content-gutter);
  z-index: var(--z-navbar);
}

.navbar-burger {
  border: 0;
  background: transparent;
  color: var(--color-text);
  font-size: 1.15rem;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
}

.navbar-burger:hover { background: var(--color-gray-100); }

.breadcrumb {
  margin-bottom: 0;
  font-size: var(--fs-sm);
}

.breadcrumb-item a { color: var(--color-text-muted); }
.breadcrumb-item a:hover { color: var(--color-text); }
.breadcrumb-item.active { color: var(--color-text); font-weight: var(--fw-semibold); }
.breadcrumb-item + .breadcrumb-item::before { color: var(--color-gray-400); }

.navbar-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.icon-btn {
  position: relative;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  background: transparent;
  color: var(--color-gray-600);
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.icon-btn:hover {
  background: var(--color-gray-100);
  color: var(--color-text);
}

.icon-btn .dot {
  position: absolute;
  top: 0.4rem;
  right: 0.5rem;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: var(--radius-pill);
  background: var(--color-danger);
  border: 2px solid var(--color-white);
}

.navbar-user {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.25rem 0.6rem 0.25rem 0.25rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: var(--color-white);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.navbar-user:hover {
  border-color: var(--color-gray-400);
  background: var(--color-gray-50);
}

.navbar-user .user-meta {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  text-align: left;
}

.navbar-user .user-meta strong {
  font-size: var(--fs-sm);
}

.navbar-user .user-meta span {
  font-size: 0.68rem;
  color: var(--color-text-muted);
}

@media (max-width: 575.98px) {
  .navbar-user .user-meta { display: none; }
}

/* Notification dropdown */
.notif-list {
  max-height: 380px;
  overflow-y: auto;
}

.notif-item {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-gray-100);
  transition: background var(--transition-fast);
}

.notif-item:hover { background: var(--color-gray-50); }

.notif-item.unread {
  background: var(--color-gray-50);
}

.notif-item.unread::after {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  margin-left: auto;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
  margin-top: var(--space-2);
}

.notif-item .notif-icon {
  width: 2.1rem;
  height: 2.1rem;
  border-radius: var(--radius-md);
  background: var(--color-gray-100);
  color: var(--color-gray-700);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.notif-item .notif-title {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  margin-bottom: 2px;
}

.notif-item .notif-time {
  font-size: 0.68rem;
  color: var(--color-text-muted);
}

.dropdown-menu {
  --bs-dropdown-border-radius: var(--radius-lg);
  --bs-dropdown-box-shadow: var(--shadow-lg);
  --bs-dropdown-border-color: var(--color-border);
  --bs-dropdown-link-color: var(--color-gray-800);
  --bs-dropdown-link-hover-bg: var(--color-gray-100);
  --bs-dropdown-link-active-bg: var(--color-primary);
  --bs-dropdown-item-padding-y: 0.5rem;
  --bs-dropdown-item-padding-x: 0.9rem;
  border: 1px solid var(--color-border);
  font-size: var(--fs-sm);
}

.dropdown-header {
  font-size: 0.68rem;
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-4);
}

.dropdown-divider {
  border-color: var(--color-gray-100);
}

/* Academic period selector */
.academic-context {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.3rem 0.8rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-white);
  font-size: var(--fs-xs);
  color: var(--color-text-soft);
}

@media (max-width: 991.98px) {
  .academic-context { display: none; }
}

/* ---------------- Content ---------------- */

.app-content {
  flex: 1;
  padding: var(--space-6) var(--content-gutter);
  max-width: var(--container-max);
  width: 100%;
  margin: 0 auto;
}

.page-title {
  font-size: var(--fs-xl);
  font-weight: var(--fw-extrabold);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-1);
}

.page-subtitle {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
}

/* ---------------- Modals ---------------- */

.modal-content {
  border: 0;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}

.modal-header {
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) var(--space-5);
}

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

.modal-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-3) var(--space-5);
}

.modal-title {
  font-weight: var(--fw-bold);
  font-size: var(--fs-md);
}

/* ---------------- Utilities ---------------- */

.text-muted { color: var(--color-text-muted) !important; }
.text-soft { color: var(--color-text-soft) !important; }
.fw-extrabold { font-weight: var(--fw-extrabold); }
.fs-xs { font-size: var(--fs-xs); }
.fs-sm { font-size: var(--fs-sm); }

.bg-surface { background-color: var(--bg-surface) !important; }
.bg-surface-muted { background-color: var(--bg-surface-muted) !important; }
.min-w-0 { min-width: 0; }

/* Compact agenda date chip */
.agenda-date-sm {
  flex-shrink: 0;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  line-height: 1.1;
}

.agenda-date-sm .d { font-size: var(--fs-md); font-weight: var(--fw-extrabold); }
.agenda-date-sm .m { font-size: 0.6rem; font-weight: var(--fw-semibold); text-transform: uppercase; letter-spacing: 0.06em; }

.section-label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

/* Timeline / activity feed */
.timeline {
  position: relative;
  padding-left: var(--space-6);
}

.timeline::before {
  content: "";
  position: absolute;
  left: var(--space-2);
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-gray-200);
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-5);
}

.timeline-item:last-child { padding-bottom: 0; }

.timeline-item::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--space-6) + 0.25rem);
  top: 0.3rem;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  background: var(--color-white);
  border: 2px solid var(--color-primary);
}

.timeline-item .tl-time {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-1);
}

.timeline-item .tl-desc {
  font-size: var(--fs-sm);
  color: var(--color-gray-800);
}

/* Progress */
.progress {
  background: var(--color-gray-100);
  border-radius: var(--radius-pill);
  height: 0.5rem;
}

.progress-bar {
  background: var(--color-primary);
  border-radius: var(--radius-pill);
}

/* ---------------- Auth pages ---------------- */

.auth-shell {
  min-height: 100vh;
  display: flex;
  align-items: stretch;
}

.auth-panel {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8);
  background: var(--color-white);
}

.auth-panel-inner {
  width: 100%;
  max-width: 420px;
}

.auth-visual {
  flex: 1.2;
  background: var(--color-ink);
  color: var(--color-white);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-16);
  position: relative;
  overflow: hidden;
}

.auth-visual .pattern {
  position: absolute;
  inset: 0;
  opacity: 0.05;
  background-image: radial-gradient(#fff 1px, transparent 1px);
  background-size: 24px 24px;
}

.auth-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.auth-brand .auth-logo {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-lg);
  background: var(--color-primary);
  color: var(--color-white);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--fw-extrabold);
  font-size: var(--fs-lg);
  overflow: hidden;
}

.auth-brand .auth-logo img { width: 100%; height: 100%; object-fit: contain; padding: 5px; }

@media (min-width: 992px) {
  .auth-visual { display: flex; }
}

/* ---------------- Public portal ---------------- */

.portal-nav {
  position: sticky;
  top: 0;
  z-index: 1020;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: var(--blur);
  border-bottom: 1px solid var(--color-border);
}

.portal-nav .navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: var(--fw-extrabold);
  letter-spacing: -0.02em;
}

.portal-nav .navbar-brand .brand-mark {
  width: 2.2rem;
  height: 2.2rem;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: var(--color-white);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.portal-nav .brand-mark img { width: 100%; height: 100%; object-fit: contain; padding: 3px; }

.portal-nav .nav-link {
  font-weight: var(--fw-semibold);
  font-size: var(--fs-sm);
  color: var(--color-gray-700);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.portal-nav .nav-link:hover { color: var(--color-black); background: var(--color-gray-100); }

.portal-footer {
  background: var(--color-ink);
  color: var(--color-gray-400);
}

.portal-footer a {
  color: var(--color-gray-400);
}

.portal-footer a:hover {
  color: var(--color-white);
}

/* Scroll reveal (public) */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}

/* ---------------- Misc ---------------- */

.skeleton {
  background: linear-gradient(90deg, var(--color-gray-100) 25%, var(--color-gray-200) 50%, var(--color-gray-100) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: var(--radius-sm);
}

@keyframes shimmer {
  from { background-position: 200% 0; }
  to { background-position: -200% 0; }
}

/* login submit spinner */
.btn .spinner-border {
  --bs-spinner-width: 1rem;
  --bs-spinner-height: 1rem;
  --bs-spinner-border-width: 2px;
  vertical-align: -0.125em;
}

/* focus visibility for keyboard users */
.nav-link:focus-visible, .btn:focus-visible, .icon-btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}