:root {
  --primary: #0d9488;
  --primary-dark: #0f766e;
  --primary-light: #ccfbf1;
  --accent: #f59e0b;
  --bg-color: #f3f4f6;
  --surface: #ffffff;
  --text-main: #1f2937;
  --text-muted: #6b7280;
  --border-color: #e5e7eb;
  --danger: #ef4444;
  --success: #10b981;
  --sidebar-width: 250px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', sans-serif;
}

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  overflow-x: hidden;
}

/* Auth Screen */
#auth-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.login-box {
  background: var(--surface);
  padding: 2.5rem;
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
  width: 100%;
  max-width: 400px;
  text-align: center;
}

.login-box .icon {
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

.login-box h2 {
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
  color: var(--text-main);
}

.form-group {
  margin-bottom: 1.2rem;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 1rem;
  transition: border-color 0.2s;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

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

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

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

.btn-danger:hover {
  background: #dc2626;
}

.btn-secondary {
  background: #e5e7eb;
  color: var(--text-main);
}

.btn-secondary:hover {
  background: #d1d5db;
}

#auth-error {
  color: var(--danger);
  font-size: 0.9rem;
  margin-top: 1rem;
  display: none;
}

/* Dashboard Layout */
#dashboard {
  display: none;
  min-height: 100vh;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 60px;
  background: var(--surface);
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 1.5rem;
  z-index: 1000;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary);
}

.nav-actions {
  display: flex;
  gap: 1rem;
}

/* Sidebar */
.sidebar {
  position: fixed;
  top: 60px;
  left: 0;
  width: var(--sidebar-width);
  height: calc(100vh - 60px);
  background: var(--surface);
  border-right: 1px solid var(--border-color);
  padding: 1.5rem 0;
  overflow-y: auto;
}

.menu-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1.5rem;
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.menu-item:hover {
  background: var(--bg-color);
  color: var(--primary);
}

.menu-item.active {
  background: var(--primary-light);
  color: var(--primary-dark);
  border-right: 3px solid var(--primary);
}

.menu-item i {
  width: 20px;
  text-align: center;
}

/* Main Content */
.main-content {
  margin-left: var(--sidebar-width);
  margin-top: 60px;
  padding: 2rem;
}

.section-container {
  display: none;
}

.section-container.active {
  display: block;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 600;
}

/* Cards */
.card {
  background: var(--surface);
  border-radius: 8px;
  padding: 1.5rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  margin-bottom: 1.5rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--surface);
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.stat-info h3 {
  font-size: 1.25rem;
  font-weight: 600;
}

.stat-info p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Data Tables & Lists */
.data-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.data-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 8px;
}

.data-info {
  flex: 1;
}

.data-title {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.data-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.data-actions {
  display: flex;
  gap: 0.5rem;
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: white;
}

/* Forms */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

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

/* Map */
#mini-map {
  width: 100%;
  height: 300px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  margin-top: 0.5rem;
  z-index: 1;
}

/* Image Previews */
.img-preview-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.img-preview-item {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--border-color);
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.modal-overlay.show {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: var(--surface);
  width: 90%;
  max-width: 800px;
  max-height: 90vh;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
}

.modal-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
}

.modal-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
}

.close-modal {
  background: none;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  color: var(--text-muted);
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  padding: 1rem 1.5rem;
  background: white;
  color: var(--text-main);
  border-radius: 6px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transform: translateX(120%);
  transition: transform 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.toast.show {
  transform: translateX(0);
}

.toast.success i { color: var(--success); }
.toast.error i { color: var(--danger); }

/* Dynamic List Items */
.dynamic-list-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1rem;
  background: #f9fafb;
  padding: 1rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

.dynamic-list-item-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* Progress Panel */
#progress-panel {
  display: none;
  margin-top: 1rem;
}

#progress-bar {
  height: 8px;
  background: var(--border-color);
  border-radius: 4px;
  overflow: hidden;
  margin-top: 0.5rem;
}

#progress-fill {
  height: 100%;
  background: var(--primary);
  width: 0%;
  transition: width 0.3s;
}

/* Responsive */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    z-index: 1050;
    transition: transform 0.3s;
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .main-content {
    margin-left: 0;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
}