/* ===== CSS Variables ===== */
:root {
  --primary: #3498db;
  --primary-dark: #2980b9;
  --primary-light: #5dade2;
  --danger: #e74c3c;
  --danger-dark: #c0392b;
  --success: #27ae60;
  --success-dark: #219653;
  --warning: #f39c12;
  --warning-dark: #d35400;
  --info: #16a085;
  --gray: #95a5a6;
  --gray-dark: #7f8c8d;
  --gray-light: #ecf0f1;
  --dark: #2c3e50;
  --dark-light: #34495e;
  --background: #f8f9fa;
  --background-card: #ffffff;
  --border: #dee2e6;
  --text: #212529;
  --text-light: #6c757d;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
  --radius: 8px;
  --radius-sm: 4px;
  --transition: all 0.2s ease;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 20px;
  background: var(--background);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== Container ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  background: var(--background-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

/* ===== Header ===== */
.header {
  margin-bottom: 0;
  padding: 20px 25px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
  color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
}

.header h1 {
  margin: 0;
  font-size: 1.8em;
  font-weight: 600;
  color: white;
  letter-spacing: -0.5px;
}

.event-info {
  margin: 5px 0 10px;
  font-size: 1.1em;
  opacity: 0.9;
  color: var(--primary-light);
}

.user-info {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9em;
  flex-wrap: wrap;
}

.user-info .role {
  text-transform: capitalize;
  background: rgba(255,255,255,0.15);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

.user-info a {
  color: var(--primary-light);
  text-decoration: none;
  transition: var(--transition);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
}

.user-info a:hover {
  color: white;
  background: rgba(255,255,255,0.1);
  text-decoration: none;
}

/* ===== Navigation Buttons ===== */
.btn-nav {
  padding: 6px 12px;
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.85em;
  font-weight: 500;
  text-decoration: none;
  display: inline-block;
  transition: var(--transition);
}

.btn-nav:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

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

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

.btn-logout {
  background: var(--gray);
}

.btn-logout:hover {
  background: var(--gray-dark);
}

/* ===== Sections ===== */
.section {
  padding: 25px;
}

.section h2 {
  color: var(--dark);
  font-size: 1.4em;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.section h2::before {
  content: '';
  width: 4px;
  height: 20px;
  background: var(--primary);
  border-radius: 2px;
}

/* ===== Event Configuration Display ===== */
.event-details {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  padding: 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.event-details p {
  margin: 10px 0;
  font-size: 1.05em;
}

.event-details strong {
  color: var(--dark);
  min-width: 80px;
  display: inline-block;
}

.event-details .btn-primary {
  margin-top: 10px;
}

/* ===== Forms ===== */
.form-group {
  margin: 15px 0;
}

.form-row {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
  align-items: center;
  padding: 10px;
  background: var(--gray-light);
  border-radius: var(--radius-sm);
}

.form-row.event-row {
  background: transparent;
  padding: 0;
  margin-bottom: 10px;
}

label {
  display: inline-block;
  margin: 5px 10px 5px 0;
  font-weight: 500;
  color: var(--dark);
}

input[type="number"],
input[type="text"],
input[type="password"],
select {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  transition: var(--transition);
  background: white;
}

input[type="number"],
input[type="text"],
input[type="password"] {
  width: 200px;
}

input[type="number"] {
  width: 100px;
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

button {
  padding: 10px 20px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
}

button:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

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

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

.btn-secondary {
  background: var(--gray);
}

.btn-secondary:hover {
  background: var(--gray-dark);
}

/* ===== Auth Box ===== */
.auth-box {
  max-width: 450px;
  margin: 40px auto;
  padding: 40px;
  background: var(--background-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.auth-box h1 {
  margin-bottom: 5px;
  color: var(--dark);
  font-size: 1.8em;
}

.auth-box h2 {
  margin: 5px 0 25px;
  color: var(--gray-dark);
  font-size: 1.1em;
  font-weight: 400;
}

.auth-box p {
  color: var(--text-light);
  margin-bottom: 25px;
}

.auth-box form {
  text-align: left;
}

.setup-link {
  margin-top: 20px;
  font-size: 0.9em;
  color: var(--text-light);
}

.setup-link a {
  color: var(--primary);
  text-decoration: none;
}

.setup-link a:hover {
  text-decoration: underline;
}

/* ===== Error Messages ===== */
.error-message {
  color: var(--danger);
  background: #fef2f2;
  border: 1px solid #fecaca;
  padding: 10px 15px;
  border-radius: var(--radius-sm);
  margin: 15px 0;
  font-size: 0.95em;
}

.error {
  color: var(--danger);
  margin: 10px 0;
}

/* ===== Device Sections ===== */
.device-section {
  margin: 20px 0;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--gray-light);
}

.device-section h3 {
  margin-top: 0;
  color: var(--dark);
  font-size: 1.2em;
  margin-bottom: 15px;
}

.no-devices {
  color: var(--gray-dark);
  font-style: italic;
  text-align: center;
  padding: 20px;
  background: white;
  border-radius: var(--radius-sm);
}

/* ===== Foldable Device Containers ===== */
details.device {
  margin: 12px 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: white;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

details.device:hover {
  box-shadow: var(--shadow);
}

details.device[open] {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

summary {
  padding: 15px 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
  color: var(--dark);
  background: var(--gray-light);
  transition: var(--transition);
}

summary:hover {
  background: var(--background);
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: '▶';
  font-size: 14px;
  color: var(--primary);
  transition: var(--transition);
  margin-left: 10px;
}

details.device[open] summary::after {
  transform: rotate(90deg);
}

.device-summary {
  display: flex;
  align-items: center;
  gap: 15px;
  flex: 1;
}

.device-content {
  padding: 15px 20px 20px;
  border-top: 1px solid var(--border);
  background: white;
}

/* ===== Device Actions ===== */
.device-actions {
  display: flex;
  gap: 8px;
}

.btn-mark-done {
  padding: 6px 12px;
  background: var(--success);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.85em;
  font-weight: 500;
  transition: var(--transition);
}

.btn-mark-done:hover {
  background: var(--success-dark);
}

.btn-undo {
  padding: 6px 12px;
  background: var(--gray);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.85em;
  font-weight: 500;
  transition: var(--transition);
}

.btn-undo:hover {
  background: var(--gray-dark);
}

/* ===== Device Location Inline ===== */
.device-location-inline {
  margin-left: 15px;
}

.device-location-inline input {
  width: 180px;
  padding: 6px 10px;
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.device-location-inline input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.1);
}

/* ===== Rows for Side-by-Side Layout ===== */
.row {
  display: flex;
  gap: 25px;
  margin-top: 15px;
}

.row .notes-section,
.row .category {
  flex: 1;
  min-width: 0;
}

.notes-section {
  background: var(--gray-light);
  padding: 15px;
  border-radius: var(--radius-sm);
}

.notes-section textarea {
  width: 100%;
  min-height: 80px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  resize: vertical;
  transition: var(--transition);
}

.notes-section textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

/* ===== Categories ===== */
.category {
  margin: 10px 0;
  padding: 15px;
  background: var(--gray-light);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.category strong {
  display: block;
  margin-bottom: 8px;
  color: var(--dark);
  font-size: 0.95em;
}

.checkbox-label {
  display: block;
  margin: 5px 0;
  padding: 6px 10px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  color: var(--text);
}

.checkbox-label:hover {
  background: var(--background);
}

.checkbox-label input[type="checkbox"] {
  margin-right: 8px;
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--primary);
}

/* ===== Select All Checkbox ===== */
.select-all-checkbox {
  margin-right: 8px;
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--primary);
}

.checkbox-label.select-all {
  margin-top: 10px;
  border-top: 1px dashed var(--border);
  padding-top: 10px;
  background: rgba(52, 152, 219, 0.05);
}

/* ===== Device States ===== */
details.device.device-done {
  border-left: 4px solid var(--success);
  background: linear-gradient(135deg, #f6fff6 0%, #ecfdf3 100%);
}

details.device.device-done summary {
  color: var(--success-dark);
  background: #ecfdf3;
}

details.device.device-partial {
  border-left: 4px solid var(--warning);
  background: linear-gradient(135deg, #fff8f0 0%, #fef5e7 100%);
}

details.device.device-partial summary {
  color: var(--warning-dark);
  background: #fef5e7;
}

/* ===== Tables ===== */
.audit-table,
.user-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
  background: white;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.audit-table th,
.audit-table td,
.user-table th,
.user-table td {
  padding: 12px 15px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.audit-table th,
.user-table th {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  font-weight: 600;
  color: var(--dark);
  font-size: 0.9em;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.audit-table tr:hover,
.user-table tr:hover {
  background: var(--gray-light);
}

.audit-table td:first-child,
.user-table td:first-child {
  font-family: monospace;
  font-size: 0.9em;
  color: var(--text-light);
}

.audit-table td:last-child,
.user-table td:last-child {
  color: var(--text-light);
  font-size: 0.9em;
}

/* ===== User Table ===== */
.user-form .form-row {
  margin-bottom: 20px;
  background: transparent;
  padding: 0;
}

.user-form input[type="text"],
.user-form input[type="password"] {
  width: auto;
}

.user-form select {
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  background: white;
}

.user-form select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.role-admin {
  font-weight: bold;
  color: var(--danger);
  padding: 2px 8px;
  background: #fee;
  border-radius: var(--radius-sm);
}

.role-user {
  color: var(--success);
  padding: 2px 8px;
  background: #efe;
  border-radius: var(--radius-sm);
}

.btn-danger {
  background: var(--danger);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.85em;
  padding: 5px 10px;
  transition: var(--transition);
}

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

/* ===== Footer ===== */
.footer {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-light);
  background: var(--gray-light);
  padding: 25px;
}

.footer img {
  opacity: 0.7;
  transition: var(--transition);
  border-radius: var(--radius-sm);
}

.footer img:hover {
  opacity: 1;
  transform: scale(1.05);
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
  .container {
    padding: 10px;
  }
  
  .header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  
  .header h1 {
    font-size: 1.5em;
  }
  
  .user-info {
    width: 100%;
    justify-content: flex-start;
    font-size: 0.85em;
  }
  
  .form-row {
    flex-direction: column;
    align-items: stretch;
  }
  
  .form-row input,
  .form-row button {
    width: 100%;
  }
  
  .row {
    flex-direction: column;
  }
  
  .row .notes-section,
  .row .category {
    width: 100%;
  }
  
  .auth-box {
    margin: 20px;
    padding: 25px;
  }
  
  .device-section {
    padding: 15px;
  }
  
  details.device {
    margin: 8px 0;
  }
  
  summary {
    padding: 12px 15px;
  }
  
  .device-actions {
    flex-direction: column;
    gap: 5px;
  }
  
  .device-actions button {
    width: 100%;
    padding: 8px;
  }
}

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

.container,
.auth-box,
.device-section,
.box {
  animation: fadeIn 0.3s ease;
}

/* ===== Config Form Error ===== */
#configError {
  display: block !important;
  color: var(--danger);
  background: #fef2f2;
  border: 1px solid #fecaca;
  padding: 12px 15px;
  border-radius: var(--radius-sm);
  margin-top: 15px;
  font-size: 0.95em;
}

#configError.hidden {
  display: none !important;
}

/* ===== Event Row Styling ===== */
.event-row input {
  width: 200px;
}

/* ===== Scrollbar Styling ===== */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--gray-light);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-light);
}