:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --text: #1c2740;
  --muted: #6c7a96;
  --border: #e4ebf5;
  --primary: #3f7cff;
  --success: #17a673;
  --danger: #e14d5a;
  --shadow: 0 10px 30px rgba(20, 40, 80, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.hidden {
  display: none !important;
}

.btn {
  border: none;
  border-radius: 10px;
  padding: 10px 16px;
  font-size: 14px;
  cursor: pointer;
}

.btn.primary {
  background: var(--primary);
  color: #fff;
}

.btn.ghost {
  background: #eef3ff;
  color: var(--text);
}

input,
select,
textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 14px;
  background: #fff;
  color: var(--text);
}

label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  color: var(--muted);
}

.auth-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
}

.auth-shell {
  width: min(980px, 100%);
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--surface);
  border-radius: 20px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.auth-brand {
  background: linear-gradient(160deg, #dbe7ff, #f3f7ff);
  padding: 40px;
  display: grid;
  gap: 12px;
  align-content: center;
}

.auth-card {
  padding: 28px;
}

.auth-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.tab-btn {
  flex: 1;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 10px;
  padding: 10px;
  cursor: pointer;
}

.tab-btn.active {
  background: #ecf2ff;
  border-color: #c7d9ff;
  color: var(--primary);
}

.auth-form {
  display: grid;
  gap: 10px;
}

.app-layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: #fff;
  border-right: 1px solid var(--border);
  padding: 16px;
  position: sticky;
  top: 0;
  height: 100vh;
}

.sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}

.nav-links {
  display: grid;
  gap: 8px;
}

.nav-link {
  text-align: left;
  border: none;
  background: #f5f8ff;
  color: var(--text);
  padding: 10px 12px;
  border-radius: 10px;
  cursor: pointer;
}

.nav-link.active {
  background: #e7efff;
  color: var(--primary);
}

.nav-link.logout {
  color: var(--danger);
}

.main-content {
  padding: 20px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  gap: 12px;
}

.user-info {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 12px;
  font-size: 13px;
}

.view-section {
  display: none;
  gap: 16px;
}

.view-section.active {
  display: grid;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.stat-card,
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 5px 20px rgba(14, 35, 65, 0.04);
}

.stat-card p {
  margin: 8px 0 0;
  font-size: 30px;
  color: var(--primary);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.full-width {
  grid-column: 1 / -1;
}

.form-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.filter-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.programs-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 230px;
  gap: 12px;
  align-items: end;
}

.toolbar-item label {
  margin-bottom: 6px;
}

.csv-upload-card h3 {
  margin: 0 0 8px;
}

.csv-help {
  margin: 0 0 10px;
  font-size: 13px;
  color: var(--muted);
}

.csv-upload-controls {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.csv-upload-controls input[type="file"] {
  max-width: 100%;
}

.csv-preview {
  margin-top: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px;
  overflow-x: auto;
  background: #fbfcff;
}

.csv-preview table {
  min-width: 520px;
}

.csv-errors {
  margin: 10px 0 0;
  padding: 10px;
  white-space: pre-wrap;
  border: 1px solid #ffd0d5;
  background: #fff6f7;
  color: #a3343d;
  border-radius: 10px;
  font-size: 12px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
  font-size: 14px;
}

.table-actions {
  display: flex;
  gap: 6px;
}

.action-btn {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  padding: 6px 10px;
  font-size: 12px;
  cursor: pointer;
}

.action-btn.delete {
  color: var(--danger);
}

.action-btn.select {
  color: var(--primary);
}

.selected-list {
  list-style: none;
  margin: 10px 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.selected-list li {
  border: 1px solid var(--border);
  background: #f9fbff;
  padding: 10px;
  border-radius: 10px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

.selected-programs-section h3 {
  margin-top: 0;
}

.selected-programs-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 10px;
}

.selected-program-card {
  border: 1px solid var(--border);
  background: #f9fbff;
  border-radius: 12px;
  padding: 12px;
  display: grid;
  gap: 6px;
}

.selected-program-card h4 {
  margin: 0 0 2px;
  font-size: 15px;
}

.selected-program-card p {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

.empty-note {
  margin: 4px 0;
  color: var(--muted);
  font-size: 14px;
}

.selected-program-actions {
  margin-top: 14px;
  justify-content: flex-end;
}

.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  display: grid;
  gap: 10px;
  z-index: 3000;
}

.toast {
  background: #fff;
  border: 1px solid var(--border);
  border-left: 4px solid var(--success);
  box-shadow: var(--shadow);
  border-radius: 10px;
  padding: 10px 12px;
  min-width: 220px;
}

.toast.error {
  border-left-color: var(--danger);
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  display: grid;
  place-items: center;
  z-index: 2000;
}

.modal-content {
  width: min(420px, calc(100% - 30px));
  background: #fff;
  border-radius: 14px;
  padding: 18px;
}

.icon-btn {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 8px;
  padding: 8px;
}

.mobile-only {
  display: none;
}

.overlay {
  display: none;
}

@media (max-width: 1024px) {
  .form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .filter-grid,
  .programs-toolbar,
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .auth-shell {
    grid-template-columns: 1fr;
  }

  .auth-brand {
    display: none;
  }

  .app-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: fixed;
    left: -260px;
    width: 250px;
    z-index: 1100;
    transition: left 0.2s ease;
  }

  .sidebar.open {
    left: 0;
  }

  .overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.28);
  }

  .overlay.show {
    display: block;
  }

  .mobile-only {
    display: inline-block;
  }

  .form-grid,
  .filter-grid,
  .programs-toolbar,
  .stats-grid,
  .selected-programs-grid {
    grid-template-columns: 1fr;
  }
}