* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #1769e0;
  --primary-dark: #0d47a1;
  --success: #4caf50;
  --danger: #f44336;
  --warning: #ff9800;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --border-radius: 8px;
  --transition: all 0.3s ease;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--gray-50);
  color: var(--gray-900);
  line-height: 1.6;
}

/* Layout */
#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  background: white;
  border-bottom: 1px solid var(--gray-200);
  padding: 1rem 2rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: contain;
}

.company-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-900);
}

.nav-section {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--gray-600);
}

.admin-badge {
  background: var(--warning);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

button {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

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

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

.btn-secondary {
  background-color: var(--gray-200);
  color: var(--gray-900);
}

.btn-secondary:hover {
  background-color: var(--gray-300);
}

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

.btn-danger:hover {
  background-color: #d32f2f;
}

.btn-small {
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
}

/* Main Content */
main {
  flex: 1;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  padding: 2rem;
}

/* Login/Register Forms */
.auth-container {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.auth-card {
  background: white;
  padding: 2rem;
  border-radius: var(--border-radius);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  width: 100%;
  max-width: 400px;
}

.auth-header {
  text-align: center;
  margin-bottom: 2rem;
}

.auth-logo {
  width: 60px;
  height: 60px;
  margin: 0 auto 1rem;
  border-radius: 50%;
  object-fit: contain;
}

.auth-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 0.5rem;
}

.auth-subtitle {
  color: var(--gray-500);
  font-size: 0.875rem;
}

.form-group {
  margin-bottom: 1rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--gray-700);
  font-size: 0.875rem;
}

input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--gray-300);
  border-radius: var(--border-radius);
  font-size: 1rem;
  transition: var(--transition);
}

input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(23, 105, 224, 0.1);
}

.form-button {
  width: 100%;
  padding: 0.75rem;
  margin-top: 1rem;
}

.toggle-auth {
  text-align: center;
  margin-top: 1rem;
  font-size: 0.875rem;
  color: var(--gray-600);
}

.toggle-auth a {
  color: var(--primary);
  cursor: pointer;
  text-decoration: none;
  font-weight: 600;
}

.toggle-auth a:hover {
  text-decoration: underline;
}

/* Alert Messages */
.alert {
  padding: 1rem;
  border-radius: var(--border-radius);
  margin-bottom: 1rem;
  font-size: 0.875rem;
}

.alert-error {
  background-color: #fee;
  color: #c33;
  border: 1px solid #fcc;
}

.alert-success {
  background-color: #efe;
  color: #3c3;
  border: 1px solid #cfc;
}

/* Dashboard */
.dashboard {
  display: flex;
  gap: 2rem;
}

.sidebar {
  width: 200px;
  flex-shrink: 0;
}

.nav-menu {
  list-style: none;
}

.nav-item {
  margin-bottom: 0.5rem;
}

.nav-link {
  display: block;
  padding: 0.75rem 1rem;
  color: var(--gray-600);
  text-decoration: none;
  border-radius: var(--border-radius);
  transition: var(--transition);
  font-weight: 500;
}

.nav-link:hover,
.nav-link.active {
  background-color: var(--gray-100);
  color: var(--primary);
}

.content {
  flex: 1;
}

/* Builds Grid */
.builds-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.builds-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-900);
}

.builds-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 1.5rem;
}

.build-card {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  transition: var(--transition);
}

.build-card:hover {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  border-color: var(--primary);
}

.build-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  margin-bottom: 1rem;
}

.build-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--gray-900);
  word-break: break-word;
}

.build-badge {
  background-color: var(--primary);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
}

.build-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--gray-200);
}

.meta-item {
  font-size: 0.875rem;
  color: var(--gray-600);
}

.meta-label {
  font-weight: 600;
  color: var(--gray-700);
}

.meta-value {
  color: var(--primary);
}

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

.build-actions button {
  flex: 1;
  padding: 0.5rem;
  font-size: 0.75rem;
}

/* Users Table */
.users-table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.users-table thead {
  background-color: var(--gray-100);
}

.users-table th {
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  color: var(--gray-700);
  font-size: 0.875rem;
}

.users-table td {
  padding: 1rem;
  border-top: 1px solid var(--gray-200);
  font-size: 0.875rem;
}

.users-table tr:hover {
  background-color: var(--gray-50);
}

.user-email {
  color: var(--primary);
  font-weight: 500;
}

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

/* Loading State */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 3rem 2rem;
  color: var(--gray-500);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.empty-state-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  justify-content: center;
  align-items: center;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: white;
  border-radius: var(--border-radius);
  padding: 2rem;
  width: 100%;
  max-width: 500px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.modal-header {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--gray-900);
}

.modal-body {
  margin-bottom: 1.5rem;
}

.modal-footer {
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
}

/* Responsive */
@media (max-width: 768px) {
  main {
    padding: 1rem;
  }

  .header-content {
    flex-direction: column;
    gap: 1rem;
  }

  .nav-section {
    gap: 1rem;
  }

  .dashboard {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
  }

  .builds-grid {
    grid-template-columns: 1fr;
  }

  .build-meta {
    grid-template-columns: 1fr;
  }

  .auth-card {
    max-width: 90%;
  }
}