/* ============================================================
   Chandransh Foundation — Design System
   Light / Clean White | Mobile-first
   ============================================================ */

/* --- Variables --- */
:root {
  --primary:       #1d4ed8;
  --primary-hover: #1e40af;
  --primary-light: #eff6ff;
  --accent:        #f59e0b;
  --accent-light:  #fffbeb;
  --success:       #16a34a;
  --success-light: #f0fdf4;
  --danger:        #dc2626;
  --danger-light:  #fef2f2;
  --warning:       #d97706;
  --warning-light: #fffbeb;
  --info:          #0891b2;
  --info-light:    #ecfeff;

  --gray-50:  #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  --sidebar-w:       260px;
  --sidebar-w-mini:  64px;
  --topbar-h:        60px;
  --radius-sm:       6px;
  --radius-md:       10px;
  --radius-lg:       14px;
  --radius-xl:       20px;
  --shadow-sm:       0 1px 3px rgba(0,0,0,.08);
  --shadow-md:       0 4px 12px rgba(0,0,0,.1);
  --shadow-lg:       0 8px 24px rgba(0,0,0,.12);
  --transition:      0.2s ease;
  --font:            'Inter', system-ui, -apple-system, sans-serif;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--gray-100);
  color: var(--gray-800);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }
button { cursor: pointer; font-family: inherit; }

/* ============================================================
   LOGIN PAGE
   ============================================================ */
.login-bg {
  min-height: 100vh;
  background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 50%, #2563eb 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.login-card {
  background: #fff;
  border-radius: var(--radius-xl);
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
}
.login-logo {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--primary-light);
  display: block;
  margin: 0 auto 1rem;
}
.login-title { font-size: 1.4rem; font-weight: 700; color: var(--gray-900); text-align: center; }
.login-sub   { font-size: .85rem; color: var(--gray-500); text-align: center; margin-bottom: 1.8rem; }

/* ============================================================
   LAYOUT: Sidebar + Main
   ============================================================ */
.app-wrapper   { display: flex; min-height: 100vh; width: 100%; overflow-x: hidden; }

/* SIDEBAR */
.sidebar {
  width: var(--sidebar-w);
  background: #fff;
  border-right: 1px solid var(--gray-200);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 200;
  transition: transform var(--transition), width var(--transition);
  overflow-y: auto;
  overflow-x: hidden;
}
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: 1.1rem 1.25rem;
  border-bottom: 1px solid var(--gray-100);
  min-height: var(--topbar-h);
}
.brand-logo {
  width: 36px; height: 36px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}
.brand-text { font-weight: 700; font-size: .9rem; color: var(--gray-900); line-height: 1.2; }
.brand-sub  { font-size: .72rem; color: var(--gray-500); }

.sidebar-nav { flex: 1; padding: .75rem 0; }
.nav-section-label {
  font-size: .68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--gray-400);
  padding: .6rem 1.25rem .3rem;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .6rem 1.25rem;
  font-size: .875rem;
  color: var(--gray-600);
  border-radius: 0;
  cursor: pointer;
  transition: all var(--transition);
  user-select: none;
  position: relative;
}
.nav-item:hover   { background: var(--gray-50); color: var(--primary); }
.nav-item.active  {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--primary);
  border-radius: 0 2px 2px 0;
}
.nav-item .nav-icon { font-size: 1.1rem; width: 20px; flex-shrink: 0; }
.nav-badge {
  margin-left: auto;
  background: var(--danger);
  color: #fff;
  font-size: .65rem;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 20px;
  min-width: 18px;
  text-align: center;
}

.sidebar-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--gray-100);
}
.user-card {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .6rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition);
}
.user-card:hover { background: var(--gray-50); }
.user-avatar {
  width: 36px; height: 36px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: .85rem;
  flex-shrink: 0;
}
.user-info-name { font-size: .85rem; font-weight: 600; color: var(--gray-800); }
.user-info-role { font-size: .72rem; color: var(--gray-500); }

/* MAIN CONTENT */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  min-width: 0; /* critical — prevents flex child from overflowing */
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  width: calc(100% - var(--sidebar-w));
  transition: margin-left var(--transition), width var(--transition);
}

/* TOPBAR */
.topbar {
  height: var(--topbar-h);
  background: #fff;
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  padding: 0 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
  gap: 1rem;
}
.topbar-toggle {
  display: none;
  background: none; border: none;
  font-size: 1.3rem;
  color: var(--gray-600);
  padding: .25rem;
}
.topbar-title {
  flex: 1;
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-800);
}
.topbar-actions { display: flex; align-items: center; gap: .75rem; }
.notif-btn {
  position: relative;
  background: var(--gray-100);
  border: none;
  border-radius: 50%;
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  color: var(--gray-600);
  font-size: 1rem;
  transition: background var(--transition);
}
.notif-btn:hover { background: var(--gray-200); }
.notif-dot {
  position: absolute;
  top: 6px; right: 6px;
  width: 8px; height: 8px;
  background: var(--danger);
  border-radius: 50%;
  border: 2px solid #fff;
}

/* PAGE CONTENT */
.page-content {
  flex: 1;
  padding: 1.75rem;
  width: 100%;
  min-width: 0; /* prevent flex child overflow */
}
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: .75rem;
}
.page-title { font-size: 1.4rem; font-weight: 700; color: var(--gray-900); }
.page-sub   { font-size: .85rem; color: var(--gray-500); margin-top: .1rem; }

/* ============================================================
   CARDS
   ============================================================ */
.card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  overflow: hidden;
}
.card-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  flex-wrap: wrap;
}
.card-title { font-size: .95rem; font-weight: 600; color: var(--gray-800); }
.card-body  { padding: 1.25rem; }

/* Stat cards */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.stat-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.stat-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
}
.stat-value { font-size: 1.8rem; font-weight: 700; color: var(--gray-900); line-height: 1; }
.stat-label { font-size: .8rem; color: var(--gray-500); }
.stat-trend { font-size: .78rem; margin-top: .25rem; }

/* ============================================================
   FORMS
   ============================================================ */
.form-grid { display: grid; gap: 1rem; }
.form-grid-2 { grid-template-columns: 1fr 1fr; }
.form-grid-3 { grid-template-columns: 1fr 1fr 1fr; }

.form-group { display: flex; flex-direction: column; gap: .35rem; }
.form-label {
  font-size: .8rem;
  font-weight: 600;
  color: var(--gray-700);
  text-transform: uppercase;
  letter-spacing: .04em;
}
.form-label .req { color: var(--danger); margin-left: 2px; }
.form-control, .form-select {
  width: 100%;
  padding: .55rem .85rem;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: .9rem;
  color: var(--gray-800);
  background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
  font-family: inherit;
  appearance: none;
}
.form-control:focus, .form-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(29,78,216,.12);
}
.form-control.is-invalid, .form-select.is-invalid {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px rgba(220,38,38,.1);
}
.form-error { font-size: .78rem; color: var(--danger); }
.form-hint  { font-size: .78rem; color: var(--gray-400); }
textarea.form-control { resize: vertical; min-height: 90px; }

.form-file-btn {
  padding: .55rem .85rem;
  border: 1.5px dashed var(--gray-300);
  border-radius: var(--radius-md);
  font-size: .85rem;
  color: var(--gray-500);
  background: var(--gray-50);
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition);
  display: block;
}
.form-file-btn:hover { border-color: var(--primary); color: var(--primary); }
.form-file-btn input[type=file] { display: none; }

.form-section-title {
  font-size: .85rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: .06em;
  padding-bottom: .5rem;
  border-bottom: 2px solid var(--primary-light);
  margin-bottom: .75rem;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  padding: .55rem 1.1rem;
  border-radius: var(--radius-md);
  font-size: .875rem;
  font-weight: 500;
  border: 1.5px solid transparent;
  transition: all var(--transition);
  cursor: pointer;
  text-decoration: none;
  line-height: 1;
  white-space: nowrap;
}
.btn:disabled { opacity: .6; cursor: not-allowed; }
.btn-sm  { padding: .35rem .75rem; font-size: .8rem; }
.btn-lg  { padding: .75rem 1.5rem; font-size: 1rem; }
.btn-icon { padding: .5rem; border-radius: var(--radius-sm); }
.btn-block { width: 100%; }

.btn-primary   { background: var(--primary); color: #fff; }
.btn-primary:hover:not(:disabled)   { background: var(--primary-hover); }
.btn-success   { background: var(--success); color: #fff; }
.btn-success:hover:not(:disabled)   { background: #15803d; }
.btn-danger    { background: var(--danger); color: #fff; }
.btn-danger:hover:not(:disabled)    { background: #b91c1c; }
.btn-warning   { background: var(--accent); color: #fff; }
.btn-warning:hover:not(:disabled)   { background: #d97706; }
.btn-outline   { background: transparent; border-color: var(--gray-300); color: var(--gray-700); }
.btn-outline:hover:not(:disabled)   { background: var(--gray-50); }
.btn-outline-primary { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn-outline-primary:hover:not(:disabled) { background: var(--primary-light); }
.btn-ghost     { background: transparent; border-color: transparent; color: var(--gray-600); }
.btn-ghost:hover:not(:disabled) { background: var(--gray-100); }

.btn .spinner {
  width: 14px; height: 14px;
  border: 2px solid rgba(255,255,255,.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .7s linear infinite;
  display: none;
}
.btn.loading .spinner { display: inline-block; }
.btn.loading .btn-text { display: none; }

/* ============================================================
   TABLES
   ============================================================ */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .875rem;
}
.data-table thead th {
  padding: .7rem 1rem;
  background: var(--gray-50);
  color: var(--gray-600);
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  text-align: left;
  border-bottom: 1px solid var(--gray-200);
  white-space: nowrap;
}
.data-table tbody td {
  padding: .75rem 1rem;
  border-bottom: 1px solid var(--gray-100);
  color: var(--gray-700);
  vertical-align: middle;
}
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: var(--gray-50); }
.data-table .avatar-sm {
  width: 32px; height: 32px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--gray-200);
}
.data-table .no-photo {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--gray-200);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: .7rem;
  font-weight: 700;
  color: var(--gray-500);
}

/* ============================================================
   BADGES & STATUS
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: .25rem;
  padding: .2rem .6rem;
  border-radius: 20px;
  font-size: .72rem;
  font-weight: 600;
}
.badge-success  { background: var(--success-light);  color: var(--success); }
.badge-danger   { background: var(--danger-light);   color: var(--danger); }
.badge-warning  { background: var(--warning-light);  color: var(--warning); }
.badge-info     { background: var(--info-light);     color: var(--info); }
.badge-primary  { background: var(--primary-light);  color: var(--primary); }
.badge-neutral  { background: var(--gray-100);       color: var(--gray-600); }

/* ============================================================
   MODAL
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s;
}
.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}
.modal {
  background: #fff;
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  transform: translateY(12px);
  transition: transform .2s;
}
.modal-overlay.open .modal { transform: translateY(0); }
.modal-lg { max-width: 760px; }
.modal-xl { max-width: 960px; }
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 1.5rem;
  border-bottom: 1px solid var(--gray-100);
  position: sticky;
  top: 0;
  background: #fff;
  z-index: 1;
}
.modal-title { font-size: 1rem; font-weight: 700; color: var(--gray-900); }
.modal-close {
  background: var(--gray-100);
  border: none;
  border-radius: 50%;
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  color: var(--gray-500);
  font-size: 1.1rem;
  transition: background var(--transition);
}
.modal-close:hover { background: var(--gray-200); color: var(--gray-800); }
.modal-body   { padding: 1.5rem; }
.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: .75rem;
  flex-wrap: wrap;
}

/* ============================================================
   SEARCH & FILTER BAR
   ============================================================ */
.filter-bar {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
}
.search-wrap {
  position: relative;
  flex: 1;
  min-width: 200px;
}
.search-wrap .search-icon {
  position: absolute;
  left: .75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-400);
  font-size: .9rem;
}
.search-wrap input {
  width: 100%;
  padding: .55rem .85rem .55rem 2.2rem;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: .875rem;
  background: #fff;
  transition: border-color var(--transition);
}
.search-wrap input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(29,78,216,.1);
}

/* ============================================================
   ALERTS & TOASTS
   ============================================================ */
.alert {
  padding: .8rem 1rem;
  border-radius: var(--radius-md);
  font-size: .875rem;
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  margin-bottom: 1rem;
}
.alert-success { background: var(--success-light); color: #166534; border: 1px solid #bbf7d0; }
.alert-danger  { background: var(--danger-light);  color: #991b1b; border: 1px solid #fecaca; }
.alert-warning { background: var(--warning-light); color: #92400e; border: 1px solid #fde68a; }
.alert-info    { background: var(--info-light);    color: #164e63; border: 1px solid #a5f3fc; }

.toast-container {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 9000;
  display: flex;
  flex-direction: column;
  gap: .5rem;
  max-width: 360px;
  width: calc(100vw - 2rem);
}
.toast {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  padding: .9rem 1rem;
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--gray-200);
  animation: slideInRight .25s ease;
  font-size: .875rem;
}
.toast.success { border-left: 4px solid var(--success); }
.toast.error   { border-left: 4px solid var(--danger); }
.toast.warning { border-left: 4px solid var(--accent); }
.toast.info    { border-left: 4px solid var(--info); }
.toast-icon { font-size: 1.1rem; margin-top: .05rem; }
.toast-body { flex: 1; }
.toast-title { font-weight: 600; color: var(--gray-900); }
.toast-msg   { color: var(--gray-600); font-size: .82rem; margin-top: .1rem; }
.toast-close { color: var(--gray-400); font-size: .9rem; cursor: pointer; background: none; border: none; }

/* ============================================================
   PAGE LOADER
   ============================================================ */
#pageLoader {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  gap: 1rem;
  color: var(--gray-400);
  flex-direction: column;
}
.spinner-ring {
  width: 40px; height: 40px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}

/* ============================================================
   PAGINATION
   ============================================================ */
.pagination {
  display: flex;
  align-items: center;
  gap: .3rem;
  flex-wrap: wrap;
  padding: 1rem 0 0;
}
.page-btn {
  min-width: 34px; height: 34px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--gray-200);
  background: #fff;
  color: var(--gray-600);
  font-size: .82rem;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.page-btn:hover { border-color: var(--primary); color: var(--primary); }
.page-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.page-btn:disabled { opacity: .4; cursor: not-allowed; }

/* ============================================================
   DOCUMENT VIEWER / UPLOAD PREVIEW
   ============================================================ */
.doc-preview-grid { display: flex; flex-wrap: wrap; gap: .75rem; }
.doc-chip {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .4rem .75rem;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: .8rem;
  color: var(--gray-700);
}
.doc-chip a { color: var(--primary); }
.doc-chip .doc-icon { color: var(--danger); }

/* Photo preview */
.photo-preview {
  width: 100px; height: 100px;
  border-radius: var(--radius-md);
  object-fit: cover;
  border: 2px solid var(--gray-200);
  display: block;
}

/* ============================================================
   EMPTY STATE
   ============================================================ */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--gray-400);
}
.empty-state-icon { font-size: 3rem; margin-bottom: .75rem; opacity: .4; }
.empty-state-title { font-size: 1rem; font-weight: 600; color: var(--gray-600); }
.empty-state-sub   { font-size: .85rem; margin-top: .25rem; }

/* ============================================================
   TABS
   ============================================================ */
.tab-bar {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--gray-200);
  margin-bottom: 1.25rem;
  overflow-x: auto;
}
.tab-btn {
  padding: .65rem 1.1rem;
  font-size: .875rem;
  font-weight: 500;
  color: var(--gray-500);
  border: none;
  background: none;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  white-space: nowrap;
  transition: all var(--transition);
}
.tab-btn:hover  { color: var(--primary); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.tab-panel      { display: none; }
.tab-panel.active { display: block; }

/* ============================================================
   UTILITIES
   ============================================================ */
.d-flex    { display: flex; }
.d-grid    { display: grid; }
.d-none    { display: none !important; }
.flex-1    { flex: 1; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1  { gap: .5rem; }
.gap-2  { gap: 1rem; }
.gap-3  { gap: 1.5rem; }
.mt-1 { margin-top: .5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: .5rem; }
.mb-2 { margin-bottom: 1rem; }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }
.text-sm { font-size: .82rem; }
.text-xs { font-size: .72rem; }
.text-muted { color: var(--gray-400); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.text-primary { color: var(--primary); }
.text-center { text-align: center; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Divider */
.divider {
  height: 1px;
  background: var(--gray-100);
  margin: 1rem 0;
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes spin         { to { transform: rotate(360deg); } }
@keyframes slideInRight { from { transform: translateX(20px); opacity: 0; } to { transform: none; opacity: 1; } }
@keyframes fadeIn       { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp      { from { transform: translateY(16px); opacity: 0; } to { transform: none; opacity: 1; } }

.fade-in  { animation: fadeIn  .25s ease; }
.slide-up { animation: slideUp .3s ease; }

/* ============================================================
   RESPONSIVE — MOBILE
   ============================================================ */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    box-shadow: var(--shadow-lg);
  }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .topbar-toggle { display: flex; }
  .page-content { padding: 1rem; }
  .form-grid-2, .form-grid-3 { grid-template-columns: 1fr; }
  .page-header { flex-direction: column; align-items: flex-start; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .modal { max-width: 100%; max-height: 85vh; border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
  .modal-overlay { align-items: flex-end; padding: 0; }
}
@media (max-width: 480px) {
  .stat-grid { grid-template-columns: 1fr; }
  .tab-bar { gap: 0; }
}

/* Sidebar overlay for mobile */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.4);
  z-index: 199;
}
.sidebar-overlay.open { display: block; }

/* Print */

/* ============================================================
   PORTAL FOOTER
   ============================================================ */
.portal-footer {
  padding: .75rem 1.75rem;
  border-top: 1px solid var(--gray-100);
  font-size: .72rem;
  color: var(--gray-400);
  text-align: center;
  background: #fff;
  margin-top: auto;
}
.portal-footer a { color: var(--gray-400); text-decoration: none; }
.portal-footer a:hover { color: var(--primary); }

@media print {
  .sidebar, .topbar, .btn, .toast-container { display: none !important; }
  .main-content { margin-left: 0; }
}