:root {
  --primary-color: #20515F;
  --card-bg: #DDD0C6;
  --bg-color: #E5EBEA;
  --text-secondary: #737271;
  --white: #FFFFFF;
  --error: #c0392b;
  --success: #27ae60;
  --ai-highlight: #20515F;
}

* { box-sizing: border-box; }

body {
  font-family: 'Merriweather', serif;
  background-color: var(--bg-color);
  margin: 0;
  padding: 0;
  color: #333;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6, button, .header-title, label {
  font-family: 'League Spartan', sans-serif;
}

/* Header */
header {
  background-color: var(--primary-color);
  color: #fff;
  padding: 30px 40px;
  text-align: center;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  position: relative;
}

header h1 { margin: 0; font-size: 2.5em; letter-spacing: 1px; }
header .subtitle { font-family: 'Merriweather', serif; font-size: 0.9em; opacity: 0.85; margin-top: 6px; }

/* Main */
main {
  flex-grow: 1;
  max-width: 1200px;
  width: 100%;
  margin: 40px auto;
  padding: 0 20px;
}

/* Screens */
.screen {
  display: none;
  background-color: var(--white);
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}
.screen.active { display: block; animation: fadeIn 0.4s ease; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Cards */
.card {
  background: var(--white);
  border: 1px solid #e0e0e0;
  border-radius: 10px;
  padding: 30px;
}

/* Disease grid */
.disease-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.disease-card {
  background: var(--card-bg);
  border-radius: 10px;
  padding: 30px 20px;
  text-align: center;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}
.disease-card:hover { transform: translateY(-4px); box-shadow: 0 8px 20px rgba(0,0,0,0.12); }
.disease-card h3 { font-size: 2em; margin: 0 0 8px; color: var(--primary-color); }
.disease-card p { color: var(--text-secondary); margin: 0; font-size: 0.9em; }

/* Record type cards */
.record-type-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 20px;
}

.record-type-card {
  background: var(--card-bg);
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  border: 3px solid transparent;
}
.record-type-card:hover { transform: translateY(-3px); box-shadow: 0 6px 16px rgba(0,0,0,0.1); }
.record-type-card.recommended { border-color: var(--primary-color); }
.record-type-card .badge {
  display: inline-block;
  background: var(--primary-color);
  color: #fff;
  font-size: 0.75em;
  padding: 3px 10px;
  border-radius: 12px;
  margin-bottom: 10px;
}
.record-type-card h3 { color: var(--primary-color); margin: 8px 0; }
.record-type-card p { color: var(--text-secondary); font-size: 0.85em; margin: 0; }

/* Buttons */
button {
  background-color: var(--primary-color);
  color: #fff;
  border: none;
  padding: 12px 30px;
  font-size: 1em;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
}
button:hover { background-color: #174450; }
button:active { transform: scale(0.98); }
button:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-secondary {
  background-color: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}
.btn-secondary:hover { background-color: var(--primary-color); color: #fff; }

/* Form */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 600; font-size: 0.9em; }
.form-group label .required { color: var(--error); margin-left: 2px; }

input[type="text"], input[type="password"], input[type="email"],
input[type="number"], input[type="date"], select, textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-family: 'Merriweather', serif;
  font-size: 0.95em;
  transition: border-color 0.2s;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary-color); }
textarea { min-height: 160px; resize: vertical; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px 24px;
}
.form-group.full-width { grid-column: 1 / -1; }

/* Sections */
.form-section {
  margin-bottom: 24px;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  overflow: hidden;
}
.form-section-header {
  background-color: var(--primary-color);
  color: #fff;
  padding: 12px 20px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
}
.form-section-header .toggle { font-size: 1.2em; transition: transform 0.3s; }
.form-section-header.collapsed .toggle { transform: rotate(-90deg); }
.form-section-body { padding: 20px; }
.form-section-body.hidden { display: none; }

/* AI highlight */
.ai-filled { border-left: 4px solid var(--ai-highlight); padding-left: 10px; }

/* Alerts */
.alert-error {
  background: #fdecea;
  color: var(--error);
  padding: 12px 16px;
  border-radius: 8px;
  margin-top: 12px;
  font-size: 0.9em;
  display: none;
}
.alert-error.visible { display: block; }

.alert-warning {
  background: #fff3cd;
  color: #856404;
  padding: 12px 16px;
  border-radius: 8px;
  margin-top: 12px;
  font-size: 0.9em;
}

.alert-info {
  background: #d1ecf1;
  color: #0c5460;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.9em;
}

/* Flex actions */
.flex-actions { display: flex; gap: 15px; flex-wrap: wrap; }

/* Loading overlay */
#loadingOverlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(255,255,255,0.85);
  z-index: 1000;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}
#loadingOverlay.active { display: flex; }

.spinner {
  width: 50px; height: 50px;
  border: 5px solid #e0e0e0;
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

#loadingText { margin-top: 16px; font-family: 'League Spartan', sans-serif; color: var(--text-secondary); }

/* Autosave indicator */
.autosave-indicator {
  font-family: 'League Spartan', sans-serif;
  font-size: 0.85em;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

/* Checkbox group */
.checkbox-group { display: flex; flex-wrap: wrap; gap: 10px; }
.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 400;
  font-size: 0.85em;
  cursor: pointer;
}

/* Admin panel */
.btn-admin {
  position: absolute;
  right: 40px;
  top: 50%;
  transform: translateY(-50%);
  padding: 8px 20px;
  font-size: 0.85em;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.4);
  color: #fff;
}
.btn-admin:hover { background: rgba(255,255,255,0.25); }

.admin-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.admin-stat-card {
  background: var(--card-bg);
  border-radius: 10px;
  padding: 20px;
  text-align: center;
}
.admin-stat-card h4 { margin: 0 0 8px; color: var(--primary-color); font-size: 0.9em; }
.admin-stat-card .stat-number { font-size: 2em; font-weight: 700; color: var(--primary-color); }
.admin-stat-card .stat-detail { font-size: 0.8em; color: var(--text-secondary); margin-top: 4px; }

.admin-table-wrapper { overflow-x: auto; }

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9em;
}
.admin-table th {
  background: var(--primary-color);
  color: #fff;
  padding: 10px 14px;
  text-align: left;
  font-weight: 600;
  white-space: nowrap;
}
.admin-table td {
  padding: 10px 14px;
  border-bottom: 1px solid #e0e0e0;
}
.admin-table tbody tr:hover { background: #f5f8f7; }
.admin-table .btn-small {
  padding: 4px 12px;
  font-size: 0.8em;
  border-radius: 4px;
}

/* Spreadsheet-style table */
.admin-table-spreadsheet {
  font-size: 0.8em;
  white-space: nowrap;
}
.admin-table-spreadsheet th {
  position: sticky;
  top: 0;
  z-index: 1;
  font-size: 0.85em;
  padding: 8px 10px;
}
.admin-table-spreadsheet td {
  padding: 6px 10px;
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.admin-table-spreadsheet td:hover {
  overflow: visible;
  white-space: normal;
  max-width: none;
  background: #eef3f2;
}
.admin-table-spreadsheet .cell-empty { color: #ccc; }
.admin-table-spreadsheet .cell-score { background: #f0f5f4; text-align: center; }

/* View toggle */
.admin-view-toggle { display: flex; gap: 0; }
.btn-toggle {
  padding: 6px 16px;
  font-size: 0.85em;
  border: 2px solid var(--primary-color);
  background: transparent;
  color: var(--primary-color);
  border-radius: 0;
  cursor: pointer;
}
.btn-toggle:first-child { border-radius: 6px 0 0 6px; }
.btn-toggle:last-child { border-radius: 0 6px 6px 0; }
.btn-toggle.active { background: var(--primary-color); color: #fff; }
.btn-toggle:hover:not(.active) { background: rgba(32,81,95,0.1); }

/* Form view for records */
.admin-form-record {
  background: var(--white);
  border: 1px solid #e0e0e0;
  border-radius: 10px;
  margin-bottom: 20px;
  overflow: hidden;
}
.admin-form-record-header {
  background: var(--card-bg);
  padding: 14px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}
.admin-form-record-header h4 { margin: 0; color: var(--primary-color); }
.admin-form-record-header .scores-badge {
  font-size: 0.85em;
  color: var(--text-secondary);
}
.admin-form-record-body { padding: 0; }
.admin-form-section-header {
  background: var(--primary-color);
  color: #fff;
  padding: 10px 20px;
  font-weight: 600;
  font-size: 0.9em;
}
.admin-form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 24px;
  padding: 16px 20px;
}
.admin-form-field {}
.admin-form-field .af-label {
  font-size: 0.8em;
  color: var(--text-secondary);
  margin-bottom: 2px;
}
.admin-form-field .af-value {
  font-size: 0.95em;
  font-weight: 600;
  padding: 6px 0;
  border-bottom: 1px solid #eee;
}
.admin-form-field.full-width { grid-column: 1 / -1; }

.admin-export-buttons button {
  padding: 6px 14px;
  font-size: 0.8em;
  margin-right: 8px;
}

.admin-filter label {
  font-weight: 600;
  margin-right: 8px;
}
.admin-filter select {
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid #ccc;
  font-family: 'Merriweather', serif;
}

/* User bar */
.user-bar {
  background: #174450;
  color: rgba(255,255,255,0.9);
  padding: 8px 40px;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 16px;
  font-family: 'League Spartan', sans-serif;
  font-size: 0.85em;
}
.btn-user-bar {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.4);
  color: #fff;
  padding: 4px 14px;
  font-size: 0.85em;
  border-radius: 4px;
}
.btn-user-bar:hover { background: rgba(255,255,255,0.15); }

/* Footer */
footer {
  background: #f5f5f5;
  padding: 20px;
  text-align: center;
  font-size: 0.85em;
  color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 600px) {
  header { padding: 20px; }
  header h1 { font-size: 1.6em; }
  main { margin: 20px auto; }
  .screen { padding: 20px; }
  .form-grid { grid-template-columns: 1fr; }
  .disease-grid { grid-template-columns: 1fr; }
  .record-type-grid { grid-template-columns: 1fr; }
  .flex-actions { flex-direction: column; }
  .flex-actions button { width: 100%; }
}