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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    min-height: 100vh;
}

.btn {
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    margin: 5px;
    text-decoration: none;
    display: inline-block;
}

.btn:hover {
    opacity: 0.9;
}

.btn.primary {
    background: #25D366;
}

.btn.primary:hover {
    background: #128C7E;
}

.btn.secondary {
    background: #7c6c7d;
}

.btn.secondary:hover {
    background: #5a6268;
}

.btn.danger {
    background: #dc3545;
}

.btn.danger:hover {
    background: #c82333;
}

.btn.small {
    padding: 6px 12px;
    font-size: 14px;
}

.alert {
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: none;
}

.alert.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
}

.form-input, .form-select {
    width: 100%;
    padding: 12px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 16px;
}

.form-input:focus, .form-select:focus {
    outline: none;
    border-color: #25D366;
}

.loading {
    text-align: center;
    padding: 40px;
    color: #666;
}

.badge {
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.badge.admin {
    background: #dc3545;
    color: white;
}

.badge.usuario {
    background: #28a745;
    color: white;
}

.badge.active {
    background: #28a745;
    color: white;
}

.badge.inactive {
    background: #6c757d;
    color: white;
}