:root {
  --primary-color: #3f51b5;
  --secondary-color: #ff4081;
  --light-color: #f8f9fa;
  --dark-color: #343a40;
  --success-color: #4caf50;
  --warning-color: #ff9800;
  --danger-color: #f44336;
  --gray-color: #6c757d;
}

html {
  font-size: 14px;
  position: relative;
  min-height: 100%;
  height: 100%;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: #333;
  background-color: #f9f9f9;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  margin: 0;
}

main {
  flex: 1 0 auto;
}

.container {
  width: 100%;
  max-width: 100%;
  padding-left: 20px;
  padding-right: 20px;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem var(--primary-color);
}

/* Header */
.navbar {
  padding: 0.8rem 1rem;
}

.navbar-brand {
  font-weight: 600;
  font-size: 1.25rem;
}

/* Cards */
.card {
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.card-header {
  border-radius: 8px 8px 0 0 !important;
  background-color: rgba(63, 81, 181, 0.1);
  font-weight: 600;
}

/* Buttons */
.btn {
  border-radius: 5px;
  padding: 0.5rem 1.5rem;
  font-weight: 500;
  transition: all 0.3s;
}

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

.btn-primary:hover {
  background-color: #303f9f;
  border-color: #303f9f;
}

.btn-outline-primary {
  color: var(--primary-color);
  border-color: var(--primary-color);
}

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

/* Custom components */
.property-card {
  border-left: 4px solid var(--primary-color);
}

.tenant-card {
  border-left: 4px solid var(--success-color);
}

.payment-card {
  border-left: 4px solid var(--warning-color);
}

.status-badge {
  padding: 0.35em 0.65em;
  border-radius: 50rem;
  font-size: 0.75em;
  font-weight: 500;
}

.status-badge-success {
  background-color: rgba(76, 175, 80, 0.2);
  color: var(--success-color);
}

.status-badge-warning {
  background-color: rgba(255, 152, 0, 0.2);
  color: var(--warning-color);
}

.status-badge-danger {
  background-color: rgba(244, 67, 54, 0.2);
  color: var(--danger-color);
}

/* Custom animations */
.fade-in {
  animation: fadeIn 0.5s ease;
}

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

/* User profile in header */
#userDropdown {
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  border: 2px solid var(--primary-color);
}

#userDropdown:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

#userDropdown .fa-user-circle {
  font-size: 1.2rem;
}

#userDropdown span {
  letter-spacing: 0.5px;
}