body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; background-color: #f4f6f9; margin: 0; padding: 0; }
.login-container { display: flex; justify-content: center; align-items: center; height: 100vh; }
.login-box { background: white; padding: 2rem; border-radius: 8px; box-shadow: 0 4px 12px rgba(0,0,0,0.1); width: 350px; }
.login-box h2 { text-align: center; color: #333; margin-bottom: 1.5rem; }
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.5rem; color: #666; }
.form-control { width: 100%; padding: 0.75rem; border: 1px solid #ddd; border-radius: 4px; box-sizing: border-box; font-size: 1rem; }
.btn { width: 100%; padding: 0.75rem; border: none; border-radius: 4px; background-color: #007bff; color: white; font-size: 1rem; cursor: pointer; transition: background 0.2s; }
.btn:hover { background-color: #0056b3; }
.alert { padding: 0.75rem; border-radius: 4px; margin-bottom: 1rem; font-size: 0.9rem; }
.alert-danger { background-color: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }
.alert-success { background-color: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
/* Dashboard specific */
.dashboard-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; padding: 1.5rem; margin: 0 auto; max-width: 1200px; }
.card { background: white; border-radius: 8px; padding: 1.5rem; box-shadow: 0 2px 4px rgba(0,0,0,0.05); }
.card h3 { margin-top: 0; border-bottom: 1px solid #eee; padding-bottom: 0.5rem; }