/* Research Division Admin – Light theme */
:root {
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --bg-sidebar: #ffffff;
  --border: #e2e8f0;
  --border-focus: #94a3b8;
  --text: #1e293b;
  --text-muted: #64748b;
  --accent: #0ea5e9;
  --accent-hover: #0284c7;
  --accent-light: #e0f2fe;
  --danger: #dc2626;
  --danger-hover: #b91c1c;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.06);
  --font: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg-page);
  min-height: 100vh;
}

.screen {
  min-height: 100vh;
}

.screen.hidden {
  display: none !important;
}

/* Login */
#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: linear-gradient(160deg, #f0f9ff 0%, #f8fafc 60%);
}

.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 40px;
  border: 1px solid var(--border);
}

.login-header {
  text-align: center;
  margin-bottom: 28px;
}

.login-header h1 {
  margin: 0 0 4px 0;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
}

.login-header p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.login-form label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 6px;
}

.login-form input {
  width: 100%;
  padding: 10px 14px;
  margin-bottom: 16px;
  font-family: inherit;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  transition: border-color 0.15s;
}

.login-form input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.error-msg {
  color: var(--danger);
  font-size: 0.9rem;
  margin: -8px 0 12px 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.btn-block {
  width: 100%;
}

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

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
}

.btn-ghost:hover {
  background: var(--border);
  color: var(--text);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
  padding: 6px 12px;
  font-size: 0.85rem;
}

.btn-danger:hover {
  background: var(--danger-hover);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.85rem;
}

/* Main layout */
#main-screen {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 260px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.sidebar-header {
  padding: 24px;
  border-bottom: 1px solid var(--border);
}

.sidebar-header h2 {
  margin: 0 0 2px 0;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
}

.sidebar-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
}

.nav-item {
  display: block;
  width: 100%;
  padding: 12px 14px;
  margin-bottom: 4px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  text-align: left;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.nav-item:hover {
  background: var(--bg-page);
  color: var(--text);
}

.nav-item.active {
  background: var(--accent-light);
  color: var(--accent-hover);
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border);
}

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: auto;
  padding: 28px 32px;
}

.content-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.content-header h3 {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text);
}

.content-body {
  flex: 1;
  min-height: 0;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 20px;
  min-height: 200px;
  overflow-y: auto;
}

/* Form mode: hide list, show form only */
.content-body.form-mode #list-view {
  display: none !important;
}

.content-body.form-mode #form-view {
  display: block !important;
}

.loading, .empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

/* Table */
.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  background: var(--bg-page);
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table tr:hover td {
  background: #fafbfc;
}

.data-table .actions {
  white-space: nowrap;
}

.data-table .actions button {
  margin-right: 8px;
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: 999px;
  background: var(--accent-light);
  color: var(--accent-hover);
}

.badge.inactive {
  background: #f1f5f9;
  color: var(--text-muted);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 24px;
}

.modal-overlay.hidden {
  display: none !important;
}

.modal {
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow: auto;
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: 0 20px 40px rgba(0,0,0,0.12);
  border: 1px solid var(--border);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}

.modal-header h4 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
}

.modal-close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--text-muted);
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.modal-close:hover {
  background: var(--bg-page);
  color: var(--text);
}

.modal-form {
  padding: 24px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 6px;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="url"],
.form-group input[type="email"],
.form-group input[type="date"],
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  font-family: inherit;
  font-size: 0.95rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  transition: border-color 0.15s;
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.form-group .help {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.form-group input[type="file"] {
  font-size: 0.9rem;
}

.form-row {
  display: flex;
  gap: 16px;
}

.form-row .form-group {
  flex: 1;
}

.modal-form .form-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.checkbox-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.checkbox-group input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

/* Contact list: no Add button */
.content-header .btn-primary.contact-only {
  display: none;
}

/* Truncate */
.truncate {
  max-width: 280px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.truncate-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  max-width: 320px;
}

/* Form page (replaces modal) */
#form-view.form-page {
  max-width: 100%;
  width: 100%;
}

#form-view.form-page.hidden {
  display: none !important;
}

.form-view-inner {
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.form-view-inner .form-page-form {
  flex: 1;
  min-width: 0;
  max-width: 720px;
}

.pdf-preview {
  flex-shrink: 0;
  width: 320px;
  position: sticky;
  top: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.pdf-preview.hidden {
  display: none !important;
}

.pdf-preview-header {
  padding: 12px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--bg-page);
  border-bottom: 1px solid var(--border);
}

.pdf-preview-iframe {
  width: 100%;
  height: 400px;
  border: none;
  display: block;
}

@media (max-width: 900px) {
  .form-view-inner {
    flex-direction: column;
  }
  .pdf-preview {
    width: 100%;
    position: static;
  }
}

.form-page-header {
  margin-bottom: 24px;
}

.form-page-header .btn-ghost {
  margin-bottom: 12px;
}

.form-page-title {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text);
}

.form-page-form {
  margin-top: 8px;
}

.form-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 28px 32px;
  box-shadow: var(--shadow);
}

.form-section {
  margin-bottom: 28px;
}

.form-section:last-of-type {
  margin-bottom: 0;
}

.form-section h4 {
  margin: 0 0 16px 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.form-page-form .form-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-start;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

/* Quill editor */
.quill-container {
  margin-bottom: 18px;
}

.quill-editor {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.ql-toolbar.ql-snow {
  border: none;
  border-bottom: 1px solid var(--border);
  background: var(--bg-page);
}

.ql-container.ql-snow {
  border: none;
  font-family: var(--font);
  font-size: 0.95rem;
}

.ql-editor {
  min-height: 160px;
}